From agent99@sgi.com Tue Jun 24 22:28:53 2003 From: SGI Security Coordinator To: agent99@sgi.com Cc: bugtraq@securityfocus.com, full-disclosure@lists.netsys.com, vulnwatch@vulnwatch.org Newsgroups: comp.sys.sgi.announce, comp.security.unix, comp.sys.sgi.admin, comp.security.announce Date: Tue, 24 Jun 2003 13:31:20 -0700 Subject: [VulnWatch] Multiple IPv6-Induced Bugs & Vulnerabilities on IRIX -----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SGI Security Advisory Title : Multiple IPv6-Induced Bugs & Vulnerabilities Number : 20030607-01-P Date : June 24, 2003 Reference : SGI BUGS 882266 880852 883371 879121 882124 883485 883748 884566 886352 886313 Fixed in : IRIX 6.5.21 or patch 5084 ______________________________________________________________________________ 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 --- - ----------------------- It's been reported that there are several bugs in IRIX 6.5.19 that were caused by the extensive changes to add IPv6 capability. Some of those bugs have security implications: o inetd can become hung when portscanned o snoop now runs with a reduced capability set, so it doesn't handle packets as a root user. There are other bugs fixed by the patches referenced herein, but they are not security-related: o Flood ping no response interval too long o inetd will not start when discard lines commented out of /etc/services o ppp spins in tight loop and never starts when configured for "quiet" mode o Canonical name not shown in 'ping ' output o rcp "Option f is not valid" SGI has investigated the issues and recommends the following steps for neutralizing the exposure. It is HIGHLY RECOMMENDED that these measures be implemented on ALL vulnerable SGI systems. These issues have been corrected in IRIX 6.5.21, with patches and in future releases of IRIX. - -------------- - --- Impact --- - -------------- The binaries involved are installed by default on IRIX 6.5.19 and later systems. Since earlier versions of IRIX were not IPV6 capable, those earlier versions are not vulnerable to these issues. To determine the version of IRIX you are running, execute the following command: # /bin/uname -R That will return a result similar to the following: # 6.5 6.5.19f The first number ("6.5") is the release name, the second ("6.5.16f" in this case) is the extended release name. The extended release name is the "version" we refer to throughout this document. - ---------------------------- - --- Temporary Workaround --- - ---------------------------- There is no effective workaround available for these problems. SGI recommends either upgrading to IRIX 6.5.21 when available, or installing the patch from the listing below. - ---------------- - --- Solution --- - ---------------- SGI has provided a patch for these vulnerabilities. Our recommendation is to upgrade to IRIX 6.5.21 when available, or install the patch. 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 no Note 2 IRIX 6.5.1 no Note 2 IRIX 6.5.2 no Note 2 IRIX 6.5.3 no Note 2 IRIX 6.5.4 no Note 2 IRIX 6.5.5 no Note 2 IRIX 6.5.6 no Note 2 IRIX 6.5.7 no Note 2 IRIX 6.5.8 no Note 2 IRIX 6.5.9 no Note 2 IRIX 6.5.10 no Note 2 IRIX 6.5.11 no Note 2 IRIX 6.5.12 no Note 2 IRIX 6.5.13 no Note 2 IRIX 6.5.14 no Note 2 IRIX 6.5.15 no Note 2 IRIX 6.5.16 no Note 2 IRIX 6.5.17 no Note 2 IRIX 6.5.18 no Note 2 IRIX 6.5.19 yes 5084 Note 3 IRIX 6.5.20 yes 5084 Note 3 IRIX 6.5.21 no NOTES 1) This version of the IRIX operating has been retired. Upgrade to an actively supported IRIX operating system. See http://support.sgi.com for more information. 2) If you have not received an IRIX 6.5.X CD for IRIX 6.5, contact your SGI Support Provider or URL: http://support.sgi.com 3) Install the patch or upgrade to IRIX 6.5.21 when available ##### Patch File Checksums #### The actual patch will be a tar file containing the following files: Filename: README.patch.5084 Algorithm #1 (sum -r): 26472 9 README.patch.5084 Algorithm #2 (sum): 17982 9 README.patch.5084 MD5 checksum: A54A88861ED24BAFFE20FE20515B277F Filename: patchSG0005084 Algorithm #1 (sum -r): 61239 4 patchSG0005084 Algorithm #2 (sum): 9540 4 patchSG0005084 MD5 checksum: 75B0873B3C3EC77F1E9EFD1BF7DD82A5 Filename: patchSG0005084.eoe_sw Algorithm #1 (sum -r): 36068 1294 patchSG0005084.eoe_sw Algorithm #2 (sum): 16134 1294 patchSG0005084.eoe_sw MD5 checksum: 2B48F367C927565FDF55E38437E5EAB7 Filename: patchSG0005084.idb Algorithm #1 (sum -r): 47598 10 patchSG0005084.idb Algorithm #2 (sum): 41838 10 patchSG0005084.idb MD5 checksum: 3B8083DE1BB5952FF64777F9B6250FA9 Filename: patchSG0005084.nfs_sw Algorithm #1 (sum -r): 39633 404 patchSG0005084.nfs_sw Algorithm #2 (sum): 48884 404 patchSG0005084.nfs_sw MD5 checksum: 8D15654BC1B5DD1644B7DC549F7DA76D - ------------- - --- Links --- - ------------- SGI Security Advisories can be found at: http://www.sgi.com/support/security/ and ftp://patches.sgi.com/support/free/security/advisories/ SGI Security Patches can be found at: http://www.sgi.com/support/security/ and ftp://patches.sgi.com/support/free/security/patches/ SGI patches for IRIX can be found at the following patch servers: http://support.sgi.com/ and ftp://patches.sgi.com/ 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/ SGI patches for Windows NT or 2000 can be found at: http://support.sgi.com/ IRIX 5.2-6.4 Recommended/Required Patch Sets can be found at: http://support.sgi.com/ and ftp://patches.sgi.com/support/patchset/ IRIX 6.5 Maintenance Release Streams can be found at: http://support.sgi.com/ IRIX 6.5 Software Update CDs can be obtained from: http://support.sgi.com/ The primary SGI anonymous FTP site for security advisories and patches is patches.sgi.com. 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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 iQCVAwUBPvixY7Q4cFApAP75AQHWhgP/duH0l8O2w799LJfOODxj5zLQaNQN2x1g 8zwldHD8CxcUelphjtbYCVXOiv7ZO20jxEjeumHAjVtBENcANCBFvFl1qbETpakk rofNq4lJnAiBreSI+1UXiKmv75w9PNm+shTU8XrxI2leidcZ5yAO9fCC8CjyzSF4 jddtLY9IDlY= =x5dV -----END PGP SIGNATURE-----