ID

VAR-201412-0615

CVE

CVE-2014-9293

TITLE

NTP Project Network Time Protocol daemon (ntpd) contains multiple vulnerabilities (Updated)

DESCRIPTION

The config_auth function in ntpd in NTP before 4.2.7p11, when an auth key is not configured, improperly generates a key, which makes it easier for remote attackers to defeat cryptographic protection mechanisms via a brute-force attack. The NTP Project ntpd version 4.2.7 and pervious versions contain several vulnerabilities. ntp-keygen prior to version 4.2.7p230 also uses a non-cryptographic random number generator when generating symmetric keys. These vulnerabilities may affect ntpd acting as a server or client. NTP is prone to a security weakness. An attacker can exploit this issue to guess the generated key, and possibly use it to send an ntpdc query or configuration requests. Network Time Protocol is prone to an unspecified security vulnerability. Little is known about this issue or its effects at this time. We will update this BID as more information emerges. Network Time Protocol 4.2.7 is vulnerable; other versions may also be affected. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Note: the current version of the following document is available here: https://h20564.www2.hp.com/portal/site/hpsc/public/kb/ docDisplay?docId=emr_na-c04554677 SUPPORT COMMUNICATION - SECURITY BULLETIN Document ID: c04554677 Version: 1 HPSBUX03240 SSRT101872 rev.1 - HP-UX Running NTP, Remote Execution of Code, Denial of Service (DoS), or Other Vulnerabilties NOTICE: The information in this Security Bulletin should be acted upon as soon as possible. Release Date: 2015-02-18 Last Updated: 2015-02-18 Potential Security Impact: Remote execution of code, Denial of Service (DoS), or other vulnerabilities Source: Hewlett-Packard Company, HP Software Security Response Team VULNERABILITY SUMMARY Potential security vulnerabilities have been identified with HP-UX running NTP. These could be exploited remotely to execute code, create a Denial of Service (DoS), or other vulnerabilities. References: CVE-2014-9293 - Insufficient Entropy in Pseudo-Random Number Generator (PRNG) (CWE-332) CVE-2014-9294 - Use of Cryptographically Weak PRNG (CWE-338) CVE-2014-9295 - Stack Buffer Overflow (CWE-121) CVE-2014-9296 - Error Conditions, Return Values, Status Codes (CWE-389) CVE-2014-9297 - Improper Check for Unusual or Exceptional Conditions (CWE-754) SSRT101872 VU#852879 SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed. HP-UX B.11.31 running NTP version C.4.2.6.4.0 or previous HP-UX B.11.23 running XNTP version 3.5 or previous BACKGROUND CVSS 2.0 Base Metrics =========================================================== Reference Base Vector Base Score CVE-2014-9293 (AV:N/AC:L/Au:N/C:P/I:P/A:P) 7.5 CVE-2014-9294 (AV:N/AC:L/Au:N/C:P/I:P/A:P) 7.5 CVE-2014-9295 (AV:N/AC:L/Au:N/C:P/I:P/A:P) 7.5 CVE-2014-9296 (AV:N/AC:L/Au:N/C:N/I:N/A:P) 5.0 CVE-2014-9297 (AV:N/AC:H/Au:N/C:P/I:N/A:N) 2.6 =========================================================== Information on CVSS is documented in HP Customer Notice: HPSN-2008-002 RESOLUTION HP has provided the following patch for HP-UX B.11.31. A workaround for HP-UX B.11.23 and B.11.11 to temporarily resolve these vulnerabilities follows below. The B.11.31 patch is available from: ftp://ntp42650:Secure12@h2.usa.hp.com or https://h20392.www2.hp.com/portal/sw depot/displayProductInfo.do?productNumber=HPUX-NTP Mitigation steps for HP-UX B.11.23 and B.11.11 for CVE-2014-9295 Restrict query for server status (Time Service is not affected) from ntpq/ntpdc by enabling .noquery. using the restrict command in /etc/ntp.conf file. Reference: http://support.ntp.org/bin/view/Main/SecurityNotice NOTE: This bulletin will be revised when patches for XNTP v3.5 on B.11.23 and B.11.11 become available. MANUAL ACTIONS: No PRODUCT SPECIFIC INFORMATION HP-UX Software Assistant: HP-UX Software Assistant is an enhanced application that replaces HP-UX Security Patch Check. It analyzes all Security Bulletins issued by HP and lists recommended actions that may apply to a specific HP-UX system. It can also download patches and create a depot automatically. For more information see: https://www.hp.com/go/swa The following text is for use by the HP-UX Software Assistant. AFFECTED VERSIONS HP-UX B.11.31 ================== NTP.INETSVCS2-BOOT NTP.NTP-AUX NTP.NTP-RUN action: install revision C.4.2.6.5.0 or subsequent END AFFECTED VERSIONS HISTORY Version:1 (rev.1) - 18 February 2015 Initial release Third Party Security Patches: Third party security patches that are to be installed on systems running HP software products should be applied in accordance with the customer's patch management policy. Support: For issues about implementing the recommendations of this Security Bulletin, contact normal HP Services support channel. For other issues about the content of this Security Bulletin, send e-mail to security-alert@hp.com. Report: To report a potential security vulnerability with any HP supported product, send Email to: security-alert@hp.com Subscribe: To initiate a subscription to receive future HP Security Bulletin alerts via Email: http://h41183.www4.hp.com/signup_alerts.php?jumpid=hpsc_secbulletins Security Bulletin Archive: A list of recently released Security Bulletins is available here: https://h20564.www2.hp.com/portal/site/hpsc/public/kb/secBullArchive/ Software Product Category: The Software Product Category is represented in the title by the two characters following HPSB. 3C = 3COM 3P = 3rd Party Software GN = HP General Software HF = HP Hardware and Firmware MP = MPE/iX MU = Multi-Platform Software NS = NonStop Servers OV = OpenVMS PI = Printing and Imaging PV = ProCurve ST = Storage Software TU = Tru64 UNIX UX = HP-UX Copyright 2015 Hewlett-Packard Development Company, L.P. Hewlett-Packard Company shall not be liable for technical or editorial errors or omissions contained herein. The information provided is provided "as is" without warranty of any kind. To the extent permitted by law, neither HP or its affiliates, subcontractors or suppliers will be liable for incidental,special or consequential damages including downtime cost; lost profits; damages relating to the procurement of substitute products or services; or damages for loss of data, or software restoration. The information in this document is subject to change without notice. Hewlett-Packard Company and the names of Hewlett-Packard products referenced herein are trademarks of Hewlett-Packard Company in the United States and other countries. Other product and company names mentioned herein may be trademarks of their respective owners. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.13 (GNU/Linux) iEYEARECAAYFAlTmZ2cACgkQ4B86/C0qfVktpQCfUVutONWPreqP2D8WOpxsidgQ fhwAnj1XmZ/Xr72p+vBwHJpNnQ48KROt =kU5i -----END PGP SIGNATURE----- . The two patches are available from the HP Support Center (HPSC). Reference: http://support.ntp.org/bin/view/Main/SecurityNotice MANUAL ACTIONS: Yes - Update If patch installation on B.11.11 or B.11.23 is not possible, mitigate with step above. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Cisco Security Advisory: Multiple Vulnerabilities in ntpd Affecting Cisco Products Advisory ID: cisco-sa-20141222-ntpd Revision 1.1 Last Updated 2014 December 23 13:37 UTC (GMT) For Public Release 2014 December 22 16:00 UTC (GMT) +--------------------------------------------------------------------- Summary ======= Multiple Cisco products incorporate a version of the ntpd package. On December 19, 2014, NTP.org and US-CERT released security advisories detailing two issues regarding weak cryptographic pseudorandom number generation (PRNG), three buffer overflow vulnerabilities, and an unhandled error condition with an unknown impact. The vulnerabilities are referenced in this document as follows: * CVE-2014-9293: Weak Default Key in config_auth() * CVE-2014-9294: Noncryptographic Random Number Generator with Weak Seed Used by ntp-keygen to Generate Symmetric Keys * CVE-2014-9295: Multiple Buffer Overflow Vulnerabilities in ntpd * CVE-2014-9296: ntpd receive(): Missing Return on Error This advisory will be updated as additional information becomes available. Cisco will release free software updates that address these vulnerabilities. Here are the details from the Slackware 14.1 ChangeLog: +--------------------------+ patches/packages/ntp-4.2.8-i486-1_slack14.1.txz: Upgraded. In addition to bug fixes and enhancements, this release fixes several high-severity vulnerabilities discovered by Neel Mehta and Stephen Roettger of the Google Security Team. For more information, see: https://www.kb.cert.org/vuls/id/852879 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9293 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9294 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9295 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9296 (* Security fix *) +--------------------------+ Where to find the new packages: +-----------------------------+ Thanks to the friendly folks at the OSU Open Source Lab (http://osuosl.org) for donating FTP and rsync hosting to the Slackware project! :-) Also see the "Get Slack" section on http://slackware.com for additional mirror sites near you. Updated package for Slackware 13.0: ftp://ftp.slackware.com/pub/slackware/slackware-13.0/patches/packages/ntp-4.2.8-i486-1_slack13.0.txz Updated package for Slackware x86_64 13.0: ftp://ftp.slackware.com/pub/slackware/slackware64-13.0/patches/packages/ntp-4.2.8-x86_64-1_slack13.0.txz Updated package for Slackware 13.1: ftp://ftp.slackware.com/pub/slackware/slackware-13.1/patches/packages/ntp-4.2.8-i486-1_slack13.1.txz Updated package for Slackware x86_64 13.1: ftp://ftp.slackware.com/pub/slackware/slackware64-13.1/patches/packages/ntp-4.2.8-x86_64-1_slack13.1.txz Updated package for Slackware 13.37: ftp://ftp.slackware.com/pub/slackware/slackware-13.37/patches/packages/ntp-4.2.8-i486-1_slack13.37.txz Updated package for Slackware x86_64 13.37: ftp://ftp.slackware.com/pub/slackware/slackware64-13.37/patches/packages/ntp-4.2.8-x86_64-1_slack13.37.txz Updated package for Slackware 14.0: ftp://ftp.slackware.com/pub/slackware/slackware-14.0/patches/packages/ntp-4.2.8-i486-1_slack14.0.txz Updated package for Slackware x86_64 14.0: ftp://ftp.slackware.com/pub/slackware/slackware64-14.0/patches/packages/ntp-4.2.8-x86_64-1_slack14.0.txz Updated package for Slackware 14.1: ftp://ftp.slackware.com/pub/slackware/slackware-14.1/patches/packages/ntp-4.2.8-i486-1_slack14.1.txz Updated package for Slackware x86_64 14.1: ftp://ftp.slackware.com/pub/slackware/slackware64-14.1/patches/packages/ntp-4.2.8-x86_64-1_slack14.1.txz Updated package for Slackware -current: ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/n/ntp-4.2.8-i486-1.txz Updated package for Slackware x86_64 -current: ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/n/ntp-4.2.8-x86_64-1.txz MD5 signatures: +-------------+ Slackware 13.0 package: 18d7f09e90cf2434f59d7e9f11478fba ntp-4.2.8-i486-1_slack13.0.txz Slackware x86_64 13.0 package: edd178e3d2636433dd18f52331af17a5 ntp-4.2.8-x86_64-1_slack13.0.txz Slackware 13.1 package: 4b6da6fa564b1fe00920d402ff97bd43 ntp-4.2.8-i486-1_slack13.1.txz Slackware x86_64 13.1 package: 292ae7dbd3ea593c5e28cbba7c2b71fa ntp-4.2.8-x86_64-1_slack13.1.txz Slackware 13.37 package: 294b8197d360f9a3cf8186619b60b73c ntp-4.2.8-i486-1_slack13.37.txz Slackware x86_64 13.37 package: 7cd5b63f8371b1cc369bc56e4b4efd5a ntp-4.2.8-x86_64-1_slack13.37.txz Slackware 14.0 package: 32eab67538c33e4669bda9200799a497 ntp-4.2.8-i486-1_slack14.0.txz Slackware x86_64 14.0 package: 33ecf4845fa8533a12a98879815bde08 ntp-4.2.8-x86_64-1_slack14.0.txz Slackware 14.1 package: f2b45a45c846a909ae201176ce359939 ntp-4.2.8-i486-1_slack14.1.txz Slackware x86_64 14.1 package: 12d7ab6e2541af4d1282621d3773e7f7 ntp-4.2.8-x86_64-1_slack14.1.txz Slackware -current package: 5b2150cee9840d8bb547098cccde879a n/ntp-4.2.8-i486-1.txz Slackware x86_64 -current package: 9ce09c5d6a60d3e2117988e4551e4af1 n/ntp-4.2.8-x86_64-1.txz Installation instructions: +------------------------+ Upgrade the package as root: # upgradepkg ntp-4.2.8-i486-1_slack14.1.txz Then, restart the NTP daemon: # sh /etc/rc.d/rc.ntpd restart +-----+ Slackware Linux Security Team http://slackware.com/gpg-key security@slackware.com +------------------------------------------------------------------------+ | To leave the slackware-security mailing list: | +------------------------------------------------------------------------+ | Send an email to majordomo@slackware.com with this text in the body of | | the email message: | | | | unsubscribe slackware-security | | | | You will get a confirmation message back containing instructions to | | complete the process. Please do not reply to this email address. References: CVE-2014-9293 CVE-2014-9294 CVE-2014-9295 CVE-2014-9296 CVE-2013-5211 SSRT102239 SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed. Platform Patch Kit Name Alpha IA64 V8.4 75-117-380_2015-08-24.BCK NOTE: Please contact OpenVMS Technical Support to request these patch kits. ============================================================================ Ubuntu Security Notice USN-2449-1 December 22, 2014 ntp vulnerabilities ============================================================================ A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 14.10 - Ubuntu 14.04 LTS - Ubuntu 12.04 LTS - Ubuntu 10.04 LTS Summary: Several security issues were fixed in NTP. Software Description: - ntp: Network Time Protocol daemon and utility programs Details: Neel Mehta discovered that NTP generated weak authentication keys. (CVE-2014-9293) Stephen Roettger discovered that NTP generated weak MD5 keys. (CVE-2014-9294) Stephen Roettger discovered that NTP contained buffer overflows in the crypto_recv(), ctl_putdata() and configure() functions. The default compiler options for affected releases should reduce the vulnerability to a denial of service. In addition, attackers would be isolated by the NTP AppArmor profile. (CVE-2014-9295) Stephen Roettger discovered that NTP incorrectly continued processing when handling certain errors. (CVE-2014-9296) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 14.10: ntp 1:4.2.6.p5+dfsg-3ubuntu2.14.10.1 Ubuntu 14.04 LTS: ntp 1:4.2.6.p5+dfsg-3ubuntu2.14.04.1 Ubuntu 12.04 LTS: ntp 1:4.2.6.p3+dfsg-1ubuntu3.2 Ubuntu 10.04 LTS: ntp 1:4.2.4p8+dfsg-1ubuntu2.2 After a standard system update you need to regenerate any MD5 keys that were manually created with ntp-keygen. References: http://www.ubuntu.com/usn/usn-2449-1 CVE-2014-9293, CVE-2014-9294, CVE-2014-9295, CVE-2014-9296 Package Information: https://launchpad.net/ubuntu/+source/ntp/1:4.2.6.p5+dfsg-3ubuntu2.14.10.1 https://launchpad.net/ubuntu/+source/ntp/1:4.2.6.p5+dfsg-3ubuntu2.14.04.1 https://launchpad.net/ubuntu/+source/ntp/1:4.2.6.p3+dfsg-1ubuntu3.2 https://launchpad.net/ubuntu/+source/ntp/1:4.2.4p8+dfsg-1ubuntu2.2 . Under Step2: your ITRC operating systems - verify your operating system selections are checked and save. To update an existing subscription: http://h30046.www3.hp.com/subSignIn.php Log in on the web page: Subscriber's choice for Business: sign-in. On the web page: Subscriber's Choice: your profile summary - use Edit Profile to update appropriate sections. HP is continually reviewing and enhancing the security features of software products to provide customers with current secure solutions. "HP is broadly distributing this Security Bulletin in order to bring to the attention of users of the affected HP products the important security information contained in this Bulletin. HP recommends that all users determine the applicability of this information to their individual situations and take appropriate action. HP does not warrant that this information is necessarily accurate or complete for all user situations and, consequently, HP will not be responsible for any damages resulting from user's use or disregard of the information provided in this Bulletin. To the extent permitted by law, HP disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose, title and non-infringement." Copyright 2015 Hewlett-Packard Development Company, L.P

AFFECTED PRODUCTS