From agent99@sgi.com Thu Jun 6 23:59:09 2002 From: SGI Security Coordinator To: agent99@sgi.com Cc: bugtraq@securityfocus.com, vulnwatch@vulnwatch.org Date: Thu, 6 Jun 2002 14:26:35 -0700 (PDT) Subject: MediaMail vulnerability -----BEGIN PGP SIGNED MESSAGE----- _____________________________________________________________________________ SGI Security Advisory Title: MediaMail vulnerability Number: 20020602-01-I Date: June 6, 2002 Reference: CAN-2002-0358 _____________________________________________________________________________ - ----------------------- - --- Issue Specifics --- - ----------------------- It's been reported that the "MediaMail" and "MediaMail Pro" (the binary is "/usr/binX11/MediaMail") mail applications can be caused to dump core when passed certain user-supplied arguments. Since MediaMail and MediaMail Pro are setgid to group "mail", they are considered to be privileged programs, and this core dumping can be used in a variety of ways to exploit the system. 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. - -------------- - --- Impact --- - -------------- The MediaMail binary is installed by default on IRIX 6.2 and earlier systems as part of eoe.sw.base. MediaMail was not shipped starting with IRIX 6.5, but "MediaMail Pro" was shipped with IRIX 6.5 on the Applications CD, and is not installed by default. To determine the version of IRIX you are running, execute the following command: # uname -R That will return a result similar to the following: # 6.5 6.5.15f The first number ("6.5") is the release name, the second ("6.5.15f" in this case) is the extended release name. The extended release name is the "version" we refer to throughout this document. To see if MediaMail or MediaMail Pro is installed, execute the following command: # versions -b | mmail If lines similar to either of the following lines are returned, then it is installed, and the system is vulnerable. I mmail 10/14/2000 MediaMail I mmail 10/14/2000 MediaMail Pro This vulnerability was assigned the following CVE: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0358 - ---------------------------- - --- Temporary Workaround --- - ---------------------------- There is no effective workaround available for these problems. - ---------------- - --- Solution --- - ---------------- MediaMail is an expired product, therefore SGI has not provided patches for these vulnerabilities. SGI recommends uninstalling the program and switching to a different mail program. See the following URL for details about the expired status of the product: http://support.sgi.com/spk/index.cgi?whichPage%3AResults%7CsearchText=mediamail&compat=All+Operating+Systems&ptype=All+Product+Types&status=All+Support+Policies&sort=Product+Name&columns=pn%7Clv%7Csp%7Csa%7Cmc%7Cos%7Clk%7Cno To remove the MediaMail or MediaMail subsystem, depending on which is installed, execute the following command: # versions remove mmail* It is not necessary to reboot after removing the program from your system. MediaMail was shipped on the following IRIX Operating Systems: OS Version Vulnerable? Patch # Other Actions ---------- ----------- ------- ------------- IRIX 3.x unknown Note 1 IRIX 4.x unknown Note 1 IRIX 5.x yes Notes 1 & 3 IRIX 6.0.x yes Notes 1 & 3 IRIX 6.1 yes Notes 1 & 3 IRIX 6.2 yes Notes 1 & 3 IRIX 6.3 yes Notes 1 & 3 IRIX 6.4 yes Notes 1 & 3 IRIX 6.5 yes Notes 2 & 3 IRIX 6.5.1 yes Notes 2 & 3 IRIX 6.5.2 yes Notes 2 & 3 IRIX 6.5.3 yes Notes 2 & 3 IRIX 6.5.4 yes Notes 2 & 3 IRIX 6.5.5 yes Notes 2 & 3 IRIX 6.5.6 yes Notes 2 & 3 IRIX 6.5.7 yes Notes 2 & 3 IRIX 6.5.8 yes Notes 2 & 3 IRIX 6.5.9 yes Notes 2 & 3 IRIX 6.5.10 yes Notes 2 & 3 IRIX 6.5.11 yes Notes 2 & 3 IRIX 6.5.12 yes Notes 2 & 3 IRIX 6.5.13 yes Notes 2 & 3 IRIX 6.5.14 yes Notes 2 & 3 IRIX 6.5.15 yes Notes 2 & 3 IRIX 6.5.16 yes Notes 2 & 3 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) Uninstall the mmail or mmailp subsystem and use a different mail client. The mail client in Netscape Communicator is suggested. Other mail clients can be found on http://freeware.sgi.com/ - ------------------------ - --- Acknowledgments ---- - ------------------------ SGI wishes to thank users of the Internet Community at large for their assistance in this matter. - ------------- - --- 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/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 iQCVAwUBPP/RbrQ4cFApAP75AQHwjwQAtCFaVWDx2yQlVw+eTfY/LIDbUOHYzSkg /EDxcBEYcf29jn5nzLs/AmV1ilXLs9c2xuAoXDYg4MAnKREZTCPeKAAE5KfTzADY GZr2knHX+PoYKrW/dm23AfFE7Ryttr6PiqkLLP6YG6oOhyOwdwWuahhFfmHo0Mxm qc9sZOghI6g= =dxO+ -----END PGP SIGNATURE-----