From agent99@sgi.com Sat Mar 16 14:20:04 2002 From: SGI Security Coordinator To: agent99@sgi.com Date: Fri, 15 Mar 2002 09:35:28 -0800 (PST) Subject: Apache vulnerabilities on IRIX -----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SGI Security Advisory Title: Apache vulnerabilities on IRIX Number: 20020301-01-P Date: March 15, 2002 Reference: CVE CAN-2001-0729 Reference: CVE CAN-2001-0730 Reference: CVE CAN-2001-0731 ______________________________________________________________________________ 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 there are security vulnerabilities in Apache webservers the versions of Apache we've shipped with IRIX. * A vulnerability was found in the split-logfile support program. A request with a specially crafted Host: header could allow any file with a .log extension on the system to be written to if the "split logfile" feature is in use, which is not the default. * A vulnerability was found when Multiviews are used to negotiate the directory index. In some configurations, requesting a URI with a QUERY_STRING of M=D could return a directory listing rather than the expected index page. 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 6.5.15, where we are now supplying Apache version 1.3.22. - -------------- - --- Impact --- - -------------- The Apache webserver is supplied with IRIX versions since 6.5.12m/f as a replacement for the older SGI FastTrack server. It is installed by default, and is enabled through "chkconfig" by default. In order to determine if an SGI-supported version of Apache is installed, execute the following command: # versions -b | grep sgi_apache If a line similar to the following line is returned, then a vulnerable version of Apache is installed: I sgi_apache 10/30/2001 SGI Web Server based on Apache, 1.3.20a If a line similar to the following is returned, then version of Apache that is installed is not vulnerable to the security issues addressed in this advisory: I sgi_apache 01/23/2002 SGI Web Server based on Apache, 1.3.22 These vulnerabilities might lead to a root compromise in some configurations, and no local user account is required. These vulnerabilities have been reported by ApacheWeek and have been publicly discussed in Usenet newsgroups and mailing lists. http://www.apacheweek.com/issues/00-09-22 http://www.apacheweek.com/issues/01-10-05#security These apache vulnerabilities were assigned the following CVEs: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2001-0729 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2001-0730 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2001-0731 - ---------------------------- - --- Temporary Workaround --- - ---------------------------- SGI acknowledges that it may not always be possible to immediately install patches or upgrade the operating system. In those cases, we recommend disabling the Apache webserver by using the following command: # /etc/init.d/apache stop Then ensure it will not restart when the system is rebooted by issuing the following command: # chkconfig apache off For further insurance, you can uninstall it with the following command: # versions remove sgi_apache* It is not necessary to reboot the system after doing this. You should upgrade the operating system as soon as it is possible to do so. - ---------------- - --- Solution --- - ---------------- SGI has not provided a patch for these issues, but instead has rolled the Apache 1.3.22 distribution into IRIX 6.5.15 and later releases of the operating system. OS Version Vulnerable? Patch # Other Actions ---------- ----------- ------- ------------- IRIX 3.x no Note 1 IRIX 4.x no Note 1 IRIX 5.x no Note 1 IRIX 6.0.x no Note 1 IRIX 6.1 no Note 1 IRIX 6.2 no Note 1 IRIX 6.3 no Note 1 IRIX 6.4 no 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 yes sgi_apache 1.3.22 Note 2 & 3 IRIX 6.5.13 yes sgi_apache 1.3.22 Note 2 & 3 IRIX 6.5.14 yes sgi_apache 1.3.22 Note 2 & 3 IRIX 6.5.15 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/irix/news/index.html#policy 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/irix/swupdates/ 3) Install sgi_apache 1.3.22 which is supplied with the IRIX 6.5.15 Applications CD or available as sgi_apache-1.3.22.tar from: ftp://patches.sgi.com/support/free/security/patches/{6.5.12-6.5.14} ##### Patch File Checksums #### The actual patch will be a tar file containing the following files: Filename: sgi_apache Algorithm #1 (sum -r): 53827 6 sgi_apache Algorithm #2 (sum): 46547 6 sgi_apache MD5 checksum: B0AD8BED8F9F7FAA8AEC0A97002C10CB Filename: sgi_apache.books Algorithm #1 (sum -r): 02961 2858 sgi_apache.books Algorithm #2 (sum): 44391 2858 sgi_apache.books MD5 checksum: 9E2B175B9B4CD20E3A9AD75C14EEFEE0 Filename: sgi_apache.idb Algorithm #1 (sum -r): 09227 218 sgi_apache.idb Algorithm #2 (sum): 49194 218 sgi_apache.idb MD5 checksum: 45519FF6EFAC71BD0BBB1764DE3693D5 Filename: sgi_apache.man Algorithm #1 (sum -r): 02004 86 sgi_apache.man Algorithm #2 (sum): 473 86 sgi_apache.man MD5 checksum: 4D4724DC0F7257E4E94E76B3C4EC2170 Filename: sgi_apache.src Algorithm #1 (sum -r): 42099 4255 sgi_apache.src Algorithm #2 (sum): 39837 4255 sgi_apache.src MD5 checksum: 0B840255E1180FE0F237649CAA4C00B0 Filename: sgi_apache.sw Algorithm #1 (sum -r): 08271 1703 sgi_apache.sw Algorithm #2 (sum): 21058 1703 sgi_apache.sw MD5 checksum: B93134BFE21F87858BD4B34B3B32F5B6 - ------------------------ - --- Acknowledgments ---- - ------------------------ SGI wishes to thank CVE, the Apache Foundation and the users of the Internet Community at large for their assistance in this matter. - ------------------- - --- References ---- - ------------------- 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/irix/ 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/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. - ----------------------------------------- - --- 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 end ^d In the example above, is the email address that you wish the mailing list information sent to. The word end must be on a separate line to indicate the end of the body of the message. The control-d (^d) is used to indicate to the mail program that you are finished composing the mail message. ------oOo------ SGI provides a comprehensive customer World Wide Web site. This site is located at http://www.sgi.com/support/security/ . ------oOo------ If there are general security questions on SGI systems, email can be sent to security-info@sgi.com. For reporting *NEW* SGI security issues, email can be sent to security-alert@sgi.com or contact your SGI support provider. 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 iQCVAwUBPJItcbQ4cFApAP75AQEr/wP+KeeieJqssRjp3HjkyXRK+3TmL7wP3yNF Ms5P57P/Y1p4tog35gnysbYUPwTAWRgZkvQqRtTLeNjFnMQmcn74Br2EnpK0LVPm xlcICfOFmLrbnM5VQJTTYOVhc47rQKR/dfOT49mb3GD6K3LDtaqXEP00cDMJESAs 0su5rXnbjpc= =+Q0Y -----END PGP SIGNATURE-----