ID

VAR-201110-0170

CVE

CVE-2011-2012

TITLE

Microsoft Windows XP and Windows Server 2003 Elevation of privilege vulnerability

DESCRIPTION

Microsoft Forefront Unified Access Gateway (UAG) 2010 Gold, Update 1, Update 2, and SP1 does not properly validate session cookies, which allows remote attackers to cause a denial of service (IIS outage) via unspecified network traffic, aka "Null Session Cookie Crash.". Microsoft Forefront Unified Access Gateway is prone to a remote denial-of-service vulnerability. Attackers can exploit this issue to crash the web server of the affected application, denying service to legitimate users. ---------------------------------------------------------------------- Ovum says ad hoc tools are out-dated. The best practice approach? Fast vulnerability intelligence, threat handling, and setup in one tool. Read the new report on the Secunia VIM: http://secunia.com/products/corporate/vim/ovum_2011_request/ ---------------------------------------------------------------------- TITLE: Microsoft Forefront Unified Access Gateway Multiple Vulnerabilities SECUNIA ADVISORY ID: SA46402 VERIFY ADVISORY: Secunia.com http://secunia.com/advisories/46402/ Customer Area (Credentials Required) https://ca.secunia.com/?page=viewadvisory&vuln_id=46402 RELEASE DATE: 2011-10-12 DISCUSS ADVISORY: http://secunia.com/advisories/46402/#comments AVAILABLE ON SITE AND IN CUSTOMER AREA: * Last Update * Popularity * Comments * Criticality Level * Impact * Where * Solution Status * Operating System / Software * CVE Reference(s) http://secunia.com/advisories/46402/ ONLY AVAILABLE IN CUSTOMER AREA: * Authentication Level * Report Reliability * Secunia PoC * Secunia Analysis * Systems Affected * Approve Distribution * Remediation Status * Secunia CVSS Score * CVSS https://ca.secunia.com/?page=viewadvisory&vuln_id=46402 ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI: * AUTOMATED SCANNING http://secunia.com/vulnerability_scanning/personal/ http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/ DESCRIPTION: Multiple vulnerabilities have been reported in Microsoft Forefront Unified Access Gateway, which can be exploited by malicious people to conduct cross-site scripting and HTTP response splitting attacks, cause a DoS (Denial of Service), and compromise a user's system. 1) Certain unspecified input related to ExcelTables is not properly sanitised before being returned to the user. This can be exploited to insert arbitrary HTTP headers, which will be included in a response sent to the user. 2) Certain unspecified input related to ExcelTables is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site. 3) Certain unspecified input is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site. 4) An unspecified error exists within the MicrosoftClient.jar Java applet, which can be exploited to download and install a malicious JAR file on client systems. Successful exploitation of this vulnerability allows execution of arbitrary code in context of a client using the gateway. 5) An error when handling session cookies with a NULL value can be exploited to stop the IIS worker process and disrupt Web services. SOLUTION: Apply patches. Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ PROVIDED AND/OR DISCOVERED BY: 1 - 3) The vendor credits Tenable Network Security. 4, 5) Reported by the vendor. ORIGINAL ADVISORY: MS11-079 (KB2544641, KB2522482, KB2522483, KB2522484, KB2522485): http://technet.microsoft.com/en-us/security/bulletin/ms11-079 OTHER REFERENCES: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ DEEP LINKS: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ EXTENDED DESCRIPTION: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ EXTENDED SOLUTION: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ EXPLOIT: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ ---------------------------------------------------------------------- About: This Advisory was delivered by Secunia as a free service to help private users keeping their systems up to date against the latest vulnerabilities. Subscribe: http://secunia.com/advisories/secunia_security_advisories/ Definitions: (Criticality, Where etc.) http://secunia.com/advisories/about_secunia_advisories/ Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor. ---------------------------------------------------------------------- Unsubscribe: Secunia Security Advisories http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org ---------------------------------------------------------------------- . -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 National Cyber Alert System Technical Cyber Security Alert TA11-284A Microsoft Updates for Multiple Vulnerabilities Original release date: October 11, 2011 Last revised: -- Source: US-CERT Systems Affected * Microsoft Windows * Microsoft .NET Framework * Microsoft Silverlight * Internet Explorer * Microsoft Forefront Unified Access Gateway * Microsoft Host Integration Server Overview There are multiple vulnerabilities in Microsoft Windows, .NET Framework, Silverlight, Internet Explorer, Forefront Unified Access Gateway, and Host Integration Server. Microsoft has released updates to address these vulnerabilities. I. Description The Microsoft Security Bulletin Summary for October 2011 describes multiple vulnerabilities in Microsoft Windows, .NET Framework, Silverlight, Internet Explorer, Forefront Unified Access Gateway, and Host Integration Server. Microsoft has released updates to address the vulnerabilities. II. Impact A remote, unauthenticated attacker could execute arbitrary code, cause a denial of service, or gain unauthorized access to your files or system. III. Solution Apply updates Microsoft has provided updates for these vulnerabilities in the Microsoft Security Bulletin Summary for October 2011. That bulletin describes any known issues related to the updates. Administrators are encouraged to note these issues and test for any potentially adverse effects. In addition, administrators should consider using an automated update distribution system such as Windows Server Update Services (WSUS). IV. References * Microsoft Security Bulletin Summary for October 2011 - <http://technet.microsoft.com/en-us/security/bulletin/ms11-oct> * Microsoft Windows Server Update Services - <http://technet.microsoft.com/en-us/wsus/default.aspx> ____________________________________________________________________ The most recent version of this document can be found at: <http://www.us-cert.gov/cas/techalerts/TA11-284A.html> ____________________________________________________________________ Feedback can be directed to US-CERT Technical Staff. Please send email to <cert@cert.org> with "TA11-284A Feedback VU#127203" in the subject. ____________________________________________________________________ For instructions on subscribing to or unsubscribing from this mailing list, visit <http://www.us-cert.gov/cas/signup.html>. ____________________________________________________________________ Produced 2011 by US-CERT, a government organization. Terms of use: <http://www.us-cert.gov/legal.html> ____________________________________________________________________ Revision History October 11, 2011: Initial release -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (GNU/Linux) iQEVAwUBTpSMLT/GkGVXE7GMAQLHGAf/axezFyU84ZPyWjypVhJdXRVJTCk3EpOT eOXXa6834tI08wzEjTfTwPSyVfomWi7/D15o6mnW470TyoKQ+cX4isB4O6NKHoM+ jjW57SmYkp3I9qPZi0guzF6q7kYwmBqUWxuwZn0eJ77yi8U9NzRxywjjg1ZXgbvq DmuNj/aMqDbd/xcOgypRM4bS6cWJ+aW2D4HNj8v2ffKabHtw/Nq/brBxv/K7gPaE LRzrz43a+hxlupTO+QFwwyOsqWRuE0k+wBHT8EV4cJkeH4o22X3hBJ2GxRXeJmMF bsAmiu+cDuR1OKPPoQ4jaBmCo4ot/drT6k3BCN0mgBCDMz23AMhLPw== =j6Pv -----END PGP SIGNATURE-----

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

input validation error

CONFIGURATIONS

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Microsoft

SOURCES

LAST UPDATE DATE

2025-04-11T21:59:09.511000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE