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-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2001.510 -- SGI Security Advisory IRIX Gauntlet Vulnerabilities 3 December 2001 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Gauntlet Firewall 4.1 Vendor: SGI Operating System: IRIX 6.2 IRIX 6.3 IRIX 6.4 IRIX 6.5 Impact: Execute Arbitrary Code/Commands Denial of Service Access Required: Remote Ref: ESB-2001.383 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SGI Security Advisory Title: IRIX Gauntlet Vulnerabilities Number: 20011104-01-I Reference: CERT CA-2001-25 Reference: CVE CVE-2000-0437 Date: November 30, 2001 ______________________________________________________________________________ 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 --- - - ----------------------- In the past, SGI ported the Gauntlet Firewall package to the IRIX and sold it as an SGI-supported product. The last version of SGI's Gauntlet is Gauntlet 4.1 for IRIX 6.2, 6.3, 6.4, and 6.5, released in August, 1998. NAI/PGP Security has reported remotely exploitable buffer overflows in two Gauntlet Firewall proxies, smap/smapd and cyberdaemon, in public forums. Though specific exploit details have not been provided to SGI, it is believed that Gauntlet for IRIX may be vulnerable. 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. - - -------------- - - --- Impact --- - - -------------- A local user account on the vulnerable system is not required in order to exploit either the cyberdaemon or the smap/smapd vulnerabilities. Both can be exploited remotely over an untrusted network. The exploitable buffer overflow could lead to a root compromise. These vulnerabilities have been reported by NAI: cyberdaemon: http://www.pgp.com/support/product-advisories/gauntlet.asp smap/smapd: http://www.pgp.com/support/product-advisories/csmap.asp The smap/smapd vulnerability was also reported by CERT: http://www.cert.org/advisories/CA-2001-25.html The cyberpatrol vulnerability has been assigned a CVE: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2000-0437 Both vulnerabilities have been publicly discussed in Usenet newsgroups and security mailing lists. - - ---------------- - - --- Solution --- - - ---------------- SGI will NOT be issuing a patch for these vulnerabilities, as Gauntlet was expired in November, 2001. Sales no longer sells Gauntlet. SGI engineering does no further work on Gauntlet. Customer support no longer supports Gauntlet. No further advisories from SGI are planned for Gauntlet 4.1 for IRIX. Please see http://support.sgi.com/news/support/swmodes.pdf , sent to customers in November, 2000 for more details. The steps below can be used to disable the cyberpatrol and smap/smapd daemons with Gauntlet 4.1 for IRIX, while still retaining the utility of the other Gauntlet components: ================ **** NOTE **** ================ Disabling telnetd daemon will disable the telnet service. 1) Become the root user on the system. % /bin/su - Password: # 2) Configure IRIX so that smap will not be invoked: # /sbin/chkconfig smap off 3) Invoke the Gauntlet Firewall Manager: Open the following URL from your WWW browser: http://firewall:21000/auth/gui.html Authenticate using your administrator account. Click the Gauntlet logo to load the configuration settings for your firewall. 4) From within the Gauntlet Firewall Manager, select Services. 5) Click the HTTP tab. The HTTP window should display. 6) Click Add. The Add HTTP Services window should display. 7) Make sure there is NOT a check mark in the "Use Cyber Patrol Filtering" box. If there is a check mark, click to disable. 8) Click Ok. This should return you to the main Gauntlet Firewall Manager menu. 9) Click Exit. As you have made changes, the Gauntlet Firewall Manager should prompt you with several options on how you wish to apply the changes. Select "Save, Apply, and Reboot". Your system will reboot, with the changes in place. Note that disabling smap/smapd will lead to running a sendmail configuration that may not suit your needs. At this time, it is recommended that you run with current IRIX 6.5 overlays, which have sendmail 8.9.3, and configure /etc/sendmail.mc as necessary to meet those needs. - - ------------------- - - --- Information --- - - ------------------- 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 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. - - ------------------------ - - --- Acknowledgments ---- - - ------------------------ SGI wishes to thank 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. 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> end ^d In the example above, <YourEmailAddress> 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 questions about this document, 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. - -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBPAfdy7Q4cFApAP75AQHc7QP/eY9brDfVmN9sxSS/kodIhcmrYlTdYEA9 PVtiulONoYX6waiqxT/NPOajt8BD7svEWWZeKz6NdTghYIyQ/X6uCS0TT7Clxdcl CgzQEnLNo5Ivc2iEVnK3skvFJbNIPpmvyfgbuknq7DKu+rHxwvHzPecS9vz9T9PQ GiilC59jc7w= =cwAs - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. This security bulletin is provided as a service to AusCERT's members. 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Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/Information/advisories.html If you believe that your system has been compromised, contact AusCERT or your representative in FIRST (Forum of Incident Response and Security Teams). Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for emergencies. -----BEGIN PGP SIGNATURE----- Version: 2.6.3i Charset: noconv Comment: ftp://ftp.auscert.org.au/pub/auscert/AUSCERT_PGP.key iQCVAwUBPAt61yh9+71yA2DNAQHzMwQAh3WWHWpBjoIfl09vmUy1KvPT3S92S6Rm PwSa25o47m9W77osHj2DQJVviKE1WoujRBdBr40Y4nOE2rJyWk4QVmv0M6ASIUn1 8xCVT4VWfzCiD8KI0wShHXuc2hpjhVJ5C2BhYy7alTvHpQxq3GaXanUgpe0VPFoS EFazdNETCUQ= =YOli -----END PGP SIGNATURE-----