From agent99@sgi.com Mon Sep 29 19:53:22 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: Mon, 29 Sep 2003 13:28:06 -0700 Subject: sendmail prescan() vulnerability on IRIX -----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SGI Security Advisory Title: sendmail prescan() vulnerability Number: 20030903-01-P Date: September 29, 2003 Reference: CERT CA-2003-25 Reference: CAN-2003-0694 Reference: SGI BUG 900772 Fixed in: IRIX 6.5.22 or patches 5325 and 5326 ______________________________________________________________________________ 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 has been reported that under certain conditions a vulnerability in sendmail could allow a remote attacker to execute arbitrary code with the privileges of the sendmail daemon, typically root. This effects all versions of sendmail including the latest version, 8.12.9. For more details please see: http://www.cert.org/advisories/CA-2003-25.html http://www.kb.cert.org/vuls/id/784980 http://lists.netsys.com/pipermail/full-disclosure/2003-September/010287.html The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2003-0694 to this issue: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0694 SGI has investigated the issue and recommends the following steps for neutralizing the exposure. It is HIGHLY RECOMMENDED that these measures be implemented on ALL vulnerable SGI systems. This issue has been corrected in future releases of IRIX. - -------------- - --- Impact --- - -------------- sendmail is install by default on IRIX. 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 6.5.21f The first number ("6.5") is the release name, the second ("6.5.21f" in this case) is the extended release name. The extended release name is the "version" we refer to throughout this document. If the output shows a release below 6.5.22, then the system may be vulnerable unless patched. - ---------------------------- - --- Temporary Workaround --- - ---------------------------- There is no effective workaround available for this vulnerability. SGI understands that there are times when upgrading the operating system or installing patches are inconvenient or not possible. In those instances, we recommend to run the following as root: # chkconfig sendmail off # /etc/init.d/sendmail stop Of course, you will no longer have the services of the sendmail server after doing this. SGI recommends either upgrading to IRIX 6.5.22 (when available), or installing the appropriate patch from the listing below. - ---------------- - --- Solution --- - ---------------- SGI has provided a series of patches for these vulnerabilities. Our recommendation is to upgrade to IRIX 6.5.22, or install the appropriate 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 Notes 2 IRIX 6.5.1 no Notes 2 IRIX 6.5.2 no Notes 2 IRIX 6.5.3 no Notes 2 IRIX 6.5.4 no Notes 2 IRIX 6.5.5 no Notes 2 IRIX 6.5.6 no Notes 2 IRIX 6.5.7 no Notes 2 IRIX 6.5.8 no Notes 2 IRIX 6.5.9 no Notes 2 IRIX 6.5.10 no Notes 2 IRIX 6.5.11 no Notes 2 IRIX 6.5.12 no Notes 2 IRIX 6.5.13 no Notes 2 IRIX 6.5.14 no Notes 2 IRIX 6.5.15 yes 5326 Notes 2 & 3 IRIX 6.5.16 yes 5326 Notes 2 & 3 IRIX 6.5.17m yes 5326 Notes 2 & 3 IRIX 6.5.17f yes 5326 Notes 2 & 3 IRIX 6.5.18m yes 5326 Notes 2 & 3 IRIX 6.5.18f yes 5326 Notes 2 & 3 IRIX 6.5.19m yes 5325 Notes 2 & 3 IRIX 6.5.19f yes 5325 Notes 2 & 3 IRIX 6.5.20m yes 5325 Notes 2 & 3 IRIX 6.5.20f yes 5325 Notes 2 & 3 IRIX 6.5.21m yes 5325 Notes 2 & 3 IRIX 6.5.21f yes 5325 Notes 2 & 3 IRIX 6.5.22 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 required patch(es) based on your operating release. ##### Patch File Checksums #### Filename: README.patch.5325 Algorithm #1 (sum -r): 09719 10 README.patch.5325 Algorithm #2 (sum): 45117 10 README.patch.5325 MD5 checksum: A4CBCEFAF0DEAC02547FE28E3F96DE25 Filename: patchSG0005325 Algorithm #1 (sum -r): 43281 4 patchSG0005325 Algorithm #2 (sum): 16979 4 patchSG0005325 MD5 checksum: 30C299D0A4A769502B119901103DA176 Filename: patchSG0005325.eoe_src Algorithm #1 (sum -r): 46646 378 patchSG0005325.eoe_src Algorithm #2 (sum): 2177 378 patchSG0005325.eoe_src MD5 checksum: CFF0F5ABB9184F94DD7DD401D99FD480 Filename: patchSG0005325.eoe_sw Algorithm #1 (sum -r): 25577 1104 patchSG0005325.eoe_sw Algorithm #2 (sum): 50436 1104 patchSG0005325.eoe_sw MD5 checksum: 74A68DFEDFFF4E69B9F604EC39E11CCA Filename: patchSG0005325.idb Algorithm #1 (sum -r): 52566 4 patchSG0005325.idb Algorithm #2 (sum): 23751 4 patchSG0005325.idb MD5 checksum: 04FC1A96D695890B218C2A775FDF0506 Filename: README.patch.5326 Algorithm #1 (sum -r): 26888 10 README.patch.5326 Algorithm #2 (sum): 39764 10 README.patch.5326 MD5 checksum: 8B05AFCB0ED432B275577D5BC4F239EF Filename: patchSG0005326 Algorithm #1 (sum -r): 50468 5 patchSG0005326 Algorithm #2 (sum): 36982 5 patchSG0005326 MD5 checksum: 4E67239FCBA46EFE0B1DF506B4F8B472 Filename: patchSG0005326.eoe_src Algorithm #1 (sum -r): 59307 302 patchSG0005326.eoe_src Algorithm #2 (sum): 19983 302 patchSG0005326.eoe_src MD5 checksum: 9FA915EE75D1309F7668FF7370DB4845 Filename: patchSG0005326.eoe_sw Algorithm #1 (sum -r): 20247 664 patchSG0005326.eoe_sw Algorithm #2 (sum): 47682 664 patchSG0005326.eoe_sw MD5 checksum: 03027855CE6F3549F5051255C6A9284C Filename: patchSG0005326.idb Algorithm #1 (sum -r): 33356 4 patchSG0005326.idb Algorithm #2 (sum): 29499 4 patchSG0005326.idb MD5 checksum: 619CEC1B014DF80EEC6B4FC344941EF4 - ------------------------ - --- Acknowledgments ---- - ------------------------ SGI wishes to thank sendmail.org and the users of the Internet Community at large for their assistance in this matter. - ------------- - --- Links --- - ------------- Patches are available via the web, anonymous FTP and from your SGI service/support provider. 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 (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. - ----------------------------------------- - --- 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. Subscribing to the mailing list can be done via the Web (http://www.sgi.com/support/security/wiretap.html) or by sending email to SGI as outlined below. % mail wiretap-request@sgi.com subscribe wiretap < YourEmailAddress such as midwatch@sgi.com > end ^d In the example above,