From agent99@boytoy.csd.sgi.com Thu Nov 19 16:48:26 1998 From: SGI Security Coordinator To: agent99@sgi.com Date: Thu, 19 Nov 1998 21:21:41 GMT Subject: IRIX Vulnerability in ToolTalk RPC Service -----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ Silicon Graphics Inc. Security Advisory Title: Vulnerability in ToolTalk RPC Service Title: NAI-29, CERT CA-98.11 Number: 19981101-01-A Date: November 19, 1998 ______________________________________________________________________________ Silicon Graphics provides this information freely to the SGI user community for its consideration, interpretation, implementation and use. Silicon Graphics recommends that this information be acted upon as soon as possible. Silicon Graphics 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 Statement --- - ----------------------- Silicon Graphics Inc. acknowledges the publicly reported security advisories NAI-29 and CERT CA-98.11* which discuss a vulnerability in the ToolTalk rpc.ttdbserverd daemon. * http://www.cert.org/advisories/CA-98.11.tooltalk.html For the protection of all our customers, SGI does not disclose, discuss or confirm vulnerabilities until a full investigation has occurred and any necessary patch(es) or release streams are available for all vulnerable and currently supported Unicos and IRIX operating systems. Until Silicon Graphics has more definitive information to provide, customers are encouraged to assume all security vulnerabilities as exploitable and take appropriate steps according to local site security policies and requirements. Steps to disable the rpc.ttdbserverd daemon are found in the Temporary Solution section below. However, other third-party programs utilizing this service may be impacted in varying degrees if the rpc.ttdbserverd daemon is disabled. Silicon Graphics Inc. has been and will continue to investigate this issue but no further information is available for public release at this time. As further information becomes available, additional advisories will be issued via the normal SGI security information distribution methods including the wiretap mailing list. - ---------------------------- - ----- Temporary Solution --- - ---------------------------- The steps below can be used to disable the ttdbserverd(8) daemon. ================= **** WARNING **** ================= Disabling ttdbserverd(8) daemon will impact and/or disable applications that use the RPC-based ToolTalk database server. One such third-party application is the TriTeal CDE product. 1) Become the root user on the system. % /bin/su - Password: # 2) Verify ttdbserverd(8) daemon is enabled. # rpcinfo -p | grep 100083 100083 1 tcp 1028 ttdbserverd 3) Edit the file /etc/inetd.conf (for IRIX 5.3 and lower, edit /usr/etc/inetd.conf). Place a "#" as the first character of the line to comment out and deactivate the ttdbserverd daemon. # vi /etc/inetd.conf {Find the following line} ttdbserverd/1 stream rpc/tcp wait root \ ?/usr/etc/rpc.ttdbserverd rpc.ttdbserverd {Place a "#" as the first character of the ttdbserverd line} #ttdbserverd/1 stream rpc/tcp wait root \ ?/usr/etc/rpc.ttdbserverd rpc.ttdbserverd 4) Force inetd to re-read the configuration file. # /etc/killall -HUP inetd 5) Kill any existing ttdbserverd(8) process. # /etc/killall ttdbserverd 6) Return to previous level. # exit % - ----------------------------------------- - --- SGI Security Information/Contacts --- - ----------------------------------------- If there are questions about this document, email can be sent to cse-security-alert@sgi.com. ------oOo------ Silicon Graphics 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 information and patches is sgigate.sgi.com (204.94.209.1). Security information and patches are located under the directories ~ftp/security and ~ftp/patches, respectively. The Silicon Graphics Security Headquarters Web page is accessible at the URL http://www.sgi.com/Support/security/security.html. For issues with the patches on the FTP sites, email can be sent to cse-security-alert@sgi.com. For assistance obtaining or working with security patches, please contact your SGI support provider. ------oOo------ Silicon Graphics 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------ Silicon Graphics provides a comprehensive customer World Wide Web site. This site is located at http://www.sgi.com/Support/security/security.html . ------oOo------ 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, Silicon Graphics is appropriately credited and the document retains and includes its valid PGP signature. -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBNlSKNLQ4cFApAP75AQGX2wP/bkFk7PtLXtvpcZd6Wzg2iVcbnH2t5ke9 wNpTaz5Edy4bPjsztHHiUBjIilWu3gtj2a232Y5Hbzzia1S3pCD5UJPhbrla7lG0 gcZlPcQeq95MIQ+rn6ciREwnI1Db5gLyjUnn1SiJ5W6sdmMiYPcmeER/4eIM1pTM oZouzjgv2QE= =k9ri -----END PGP SIGNATURE-----