From agent99@sgi.com Wed Apr 18 23:45:27 2001 From: SGI Security Coordinator To: BUGTRAQ@SECURITYFOCUS.COM Date: Wed, 18 Apr 2001 15:02:32 -0700 Subject: [BUGTRAQ] IRIX BIND Vulnerabilities [The following text is in the "iso-8859-1" character set] [Your display is set for the "US-ASCII" character set] [Some characters may be displayed incorrectly] -----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SGI Security Advisory Title: IRIX BIND Vulnerabilities Number: 20010401-01-P Date: April 18, 2001 Reference: CERTŪ Advisory CA-2001-02 Multiple Vulnerabilities in BIND Reference: CERTŪ Incident Note IN-2001-03 Reference: CVE CAN-2001-0011, CAN-2001-0012, CAN-2001-0013 ______________________________________________________________________________ SGI provides this information freely to the SGI user community for its consideration, interpretation, implementation and use. SGI recommends that this information be acted upon as soon as possible. SGI provides the information in this Security Advisory on an "AS-IS" basis only, and disclaims all warranties with respect thereto, express, implied or otherwise, including, without limitation, any warranty of merchantability or fitness for a particular purpose. In no event shall SGI be liable for any loss of profits, loss of business, loss of data or for any indirect, special, exemplary, incidental or consequential damages of any kind arising from your use of, failure to use or improper use of any of the instructions or information in this Security Advisory. ______________________________________________________________________________ - ----------------------- - --- Issue Specifics --- - ----------------------- The BIND distribution provides Internet domain name service known as DNS. CERT has reported several vulnerabilities that have been discovered in the BIND named daemon. SGI has investigated the issue and provides the following information for customer interpretation and possible action. - -------------- - --- Impact --- - -------------- SGI distributes BIND 4.9.7 on IRIX as eoe.sw.named which is not loaded by default on IRIX systems. SGI distributes BIND 8.2.2 on Freeware CDs and on the Freeware website: http://freeware.sgi.com/index-by-alpha.html A local user account on a vulnerable DNS server is not required in order to exploit named daemon. The named daemon can be exploited remotely over an untrusted network. The named daemon vulnerabilities can lead to a root compromise. The named vulnerabilities were discovered by NAI COVERT Labs: http://www.pgp.com/research/covert/advisories/047.asp The named vulnerabilities were reported by CERTŪ Coordination Center: http://www.cert.org/advisories/CA-2001-02.html http://www.cert.org/incident_notes/IN-2001-03.html The CVE candidates for these vulnerabilities are: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2001-0011 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2001-0012 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2001-0013 The BIND vulnerabilities have been publicly discussed in USENET newsgroups and security mailing lists: http://www.securityfocus.com/bid/2307 - -------------------------- - --- Temporary Solution --- - -------------------------- Unfortunately, there are no immediate or temporary workarounds for this issue. This issue can only be addressed with the installation of a patch, installation of the overlay 12 for IRIX 6.5 (IRIX 6.5.12), or installation of BIND 4.9.8 or BIND 8.2.3 from http://www.isc.org/ The steps below can be used to disable the named daemon to prevent exploitation of this vulnerability until patches can be installed. 1) Become the root user on the system. % /bin/su - Password: # 2) Check to see if the system is running the named daemon. # chkconfig Flag State ==== ===== named off If named is disabled, then the system is not vulnerable to these BIND vulnerabilities. 3) Disable named daemon. # chkconfig named off 4) Kill any running named daemons. # /sbin/killall named 5) Return to previous level. # exit % 6) Install patches when possible. - ---------------- - --- Solution --- - ---------------- Install IRIX 6.5.12 when available or patch 4193 for IRIX 6.5-6.5.11 OS Version Vulnerable? Patch # Other Actions ---------- ----------- ------- ------------- IRIX 3.x unknown Note 1 IRIX 4.x unknown Note 1 IRIX 5.X unknown Note 1 IRIX 6.0.x unknown Note 1 IRIX 6.1 unknown Note 1 IRIX 6.2 unknown Note 1 IRIX 6.3 unknown Note 1 IRIX 6.4 unknown Note 1 IRIX 6.5 yes 4193 Note 2 IRIX 6.5.1 yes 4193 Note 2 IRIX 6.5.2 yes 4193 Note 2 IRIX 6.5.3 yes 4193 Note 2 IRIX 6.5.4 yes 4193 Note 2 IRIX 6.5.5 yes 4193 Note 2 IRIX 6.5.6 yes 4193 Note 2 IRIX 6.5.7 yes 4193 Note 2 IRIX 6.5.8 yes 4193 Note 2 IRIX 6.5.9 yes 4193 Note 2 IRIX 6.5.10 yes 4193 Note 2 IRIX 6.5.11 yes 4193 Note 3 & 4 IRIX 6.5.12 no Note 5 NOTES 1) This version of the IRIX operating has been retired. Upgrade to an actively supported IRIX operating system. See http://support.sgi.com/news/support/index.html#support_policy for more information. 2) This version of the IRIX operating system is in maintenance mode. Upgrade to an actively supported IRIX operating system. See http://support.sgi.com/news/support/index.html#support_policy for more information. 3) If you have not received an Overlay 11 CD for IRIX 6.5, contact your SGI Support Provider or URL: http://support.sgi.com/irix/swupdates/ 4) Download the IRIX 6.5.11 Maintenance Release Stream from the URL: http://support.sgi.com/colls/patches/tools/relstream/index.html 5) IRIX 6.5.12 Maintenance Release Stream is scheduled to be released in May 2001 Patches are available via the web, anonymous FTP and from your SGI service/support provider. SGI patches for IRIX can be found at the following patch servers: http://support.sgi.com/irix/ and ftp://patches.sgi.com/ SGI Security Patches can be found at: http://www.sgi.com/support/security/ and ftp://patches.sgi.com/support/free/security/patches/ SGI Security Advisories can be found at: http://www.sgi.com/support/security/ and ftp://patches.sgi.com/support/free/security/advisories/ SGI freeware updates for IRIX can be found at: http://freeware.sgi.com/ SGI fixes for SGI open sourced code can be found on: http://oss.sgi.com/projects/ SGI patches and RPMs for Linux can be found at: http://support.sgi.com/linux/ or http://oss.sgi.com/projects/sgilinux-combined/download/security-fixes/ SGI patches for Windows NT or 2000 can be found at: http://support.sgi.com/nt/ IRIX 5.2-6.4 Recommended/Required Patch Sets can be found at: http://support.sgi.com/irix/ and ftp://patches.sgi.com/support/patchset/ IRIX 6.5 Maintenance Release Streams can be found at: http://support.sgi.com/colls/patches/tools/relstream/index.html IRIX 6.5 Software Update CDs can be obtained from: http://support.sgi.com/irix/swupdates/ The primary SGI anonymous FTP site for security advisories and patches is patches.sgi.com (216.32.174.211). Security advisories and patches are located under the URL ftp://patches.sgi.com/support/free/security/ For security and patch management reasons, ftp.sgi.com (mirrors patches.sgi.com security FTP repository) lags behind and does not do a real-time update. ##### Patch File Checksums #### The actual patch will be a tar file containing the following files: Filename: README.patch.4193 Algorithm #1 (sum -r): 01206 8 README.patch.4193 Algorithm #2 (sum): 48388 8 README.patch.4193 MD5 checksum: Filename: patchSG0004193 Algorithm #1 (sum -r): 25396 3 patchSG0004193 Algorithm #2 (sum): 52827 3 patchSG0004193 MD5 checksum: Filename: patchSG0004193.eoe_sw Algorithm #1 (sum -r): 56669 318 patchSG0004193.eoe_sw Algorithm #2 (sum): 44729 318 patchSG0004193.eoe_sw MD5 checksum: Filename: patchSG0004193.idb Algorithm #1 (sum -r): 29074 2 patchSG0004193.idb Algorithm #2 (sum): 43255 2 patchSG0004193.idb MD5 checksum: - ------------------------ - --- Acknowledgments ---- - ------------------------ SGI wishes to thank the CERT Coordination Center, NAI COVERT Labs and the users of the Internet Community at large for their assistance in this matter. - ----------------------------------------- - --- SGI Security Information/Contacts --- - ----------------------------------------- If there are questions about this document, email can be sent to security-info@sgi.com. ------oOo------ SGI provides security information and patches for use by the entire SGI community. This information is freely available to any person needing the information and is available via anonymous FTP and the Web. The primary SGI anonymous FTP site for security advisories and patches is patches.sgi.com (216.32.174.211). Security advisories and patches are located under the URL ftp://patches.sgi.com/support/free/security/ The SGI Security Headquarters Web page is accessible at the URL: http://www.sgi.com/support/security/ For issues with the patches on the FTP sites, email can be sent to security-info@sgi.com. For assistance obtaining or working with security patches, please contact your SGI support provider. ------oOo------ SGI provides a free security mailing list service called wiretap and encourages interested parties to self-subscribe to receive (via email) all SGI Security Advisories when they are released. 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A support contract is not required for submitting a security report. ______________________________________________________________________________ This information is provided freely to all interested parties and may be redistributed provided that it is not altered in any way, SGI is appropriately credited and the document retains and includes its valid PGP signature. -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBOt4JK7Q4cFApAP75AQGv6QP+Jfogtti4hCn9jYFeIh+8ez2hGzJXTXP8 fJcZq+WeL7z+drFCneiQYywTvzjVn+Yyk7y4PLUcBkda4cqoE9hrjZsEXnCgiw1X eaXHGQ6u4p3LGeRAXYhXFwV2pfHqk3Xdm074Jj5uxYK9T0p+EvfOh/Kamci7xElP uEwzf5+uBDk= =lIer -----END PGP SIGNATURE-----