Published:
30 July 1998
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-98.121 -- CERT VB-98.07 OpenVMS loginout Vulnerability Update 31 July 1998 =========================================================================== The CERT Coordination Center has released the following advisory containing updated information concerning a potential vulnerability in loginout for OpenVMS. This vulnerability may allow a user to gain unauthorised access. The following security bulletin is provided as a service to AusCERT's members. As AusCERT did not write this document, AusCERT has had no control over its content. As such, the decision to use any or all of this information is the responsibility of each user or organisation, and should be done so in accordance with site policies and procedures. NOTE: This is only the original release of the security bulletin. It will not be updated when the original bulletin is. If downloading at a later date, it is recommended that the bulletin is retrieved from the original authors to ensure that the information is still current. Contact information for Compaq is included in the Security Bulletin below. If you have any questions or need further information, please contact them directly. 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 INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- ============================================================================= CERT* Vendor-Initiated Bulletin VB-98.07 July 28, 1998 Topic: OpenVMS (VAX & ALPHA) V7.1 LOGINOUT Potential Security Vulnerability Source: Compaq Computer Corporation To aid in the wide distribution of essential security information, the CERT Coordination Center is forwarding the following information from Compaq Computer Corporation. Compaq urges you to act on this information as soon as possible. Compaq Computer Corporation contact information is included in the forwarded text below; please contact them if you have any questions or need further information. =======================FORWARDED TEXT STARTS HERE============================ ________________________________________________________ UPDATED: JULY 24, 1998 DATE: JULY 13, 1998 TITLE: OpenVMS (VAX & ALPHA) V7.1 LOGINOUT Potential Security Vulnerability Ref #: SSRT0541V SOURCE: Compaq Computer Corporation Software Security Response Team "We are broadly distributing this Security Advisory in order to bring to the attention of users of OpenVMS products the important security information contained in this Advisory. We recommend that all users determine the applicability of this information to their individual situations and take appropriate action. Compaq Computer Corporation does not warrant that this information is necessarily accurate or complete for all user situations and, consequently, will not be responsible for any damages resulting from user's use or disregard of the information provided in this Advisory." - - - ---------------------------------------------------------------------- IMPACT: A potential vulnerability with LOGINOUT for OpenVMS (VAX & ALPHA) V7.1 software has been discovered, where under certain circumstances, a user may gain unauthorized access. Prior versions of OpenVMS (VAX & ALPHA) are not affected. This potential vulnerability is limited to OpenVMS V7.1 with external authentication enabled. The vulnerability does not exist if external authentication is disabled. (External authentication is disabled by default. Please refer to the OpenVMS Guide to System Security, section 7.4, for detailed information on external authentication.) We strongly recommend that OpenVMS V7.1 customers install the appropriate patch kit immediately. - - - ---------------------------------------------------------------------- RESOLUTION: This potential security vulnerability has been resolved and an official patch for this problem has been made available for OpenVMS VAX V7.1 and OpenVMS ALPHA V7.1, V7.1-1H1, and V7.1-1H2 systems. o the World Wide Web at the following FTP address: http://www.service.digital.com/public/vms Use the FTP access option, select the directory, then choose the appropriate VAX/V7.1 or ALP/V7.1 directory and download the patch accordingly. OpenVMS VAX kit VAXLOGI05_071 OpenVMS Alpha kit ALPLOGI05_071 Note: [1]The appropriate patch kit must be installed following any upgrade to OpenVMS (VAX or ALPHA) V7.1 [2] Please review the appropriate release notes and cover letter prior to installation. If you need further information, please contact your normal Compaq Customer Services support channel for OpenVMS (VAX or ALPHA). We appreciate your cooperation and patience. We regret any inconvenience applying this information may cause. As always, we urge you to periodically review your system management and security procedures. We will continue to review and enhance the security features of our products and work with customers to maintain and improve the security and integrity of their systems. ___________________________________________________________ (c) Copyright 1994, 1995, 1996, 1997, 1998 Compaq Computer Corporation. All Rights Reserved. Unpublished Rights Reserved Under The Copyright Laws Of The United States. ___________________________________________________________ ========================FORWARDED TEXT ENDS HERE============================= If you believe that your system has been compromised, contact the CERT Coordination Center or your representative in the Forum of Incident Response and Security Teams (FIRST). See http://www.first.org/team-info/. We strongly urge you to encrypt any sensitive information you send by email. The CERT Coordination Center can support a shared DES key and PGP. Contact the CERT staff for more information. Location of CERT PGP key ftp://ftp.cert.org/pub/CERT_PGP.key CERT Contact Information - - ------------------------ Email cert@cert.org Phone +1 412-268-7090 (24-hour hotline) CERT personnel answer 8:30-5:00 p.m. EST (GMT-5)/EDT(GMT-4), and are on call for emergencies during other hours. Fax +1 412-268-6989 Postal address CERT Coordination Center Software Engineering Institute Carnegie Mellon University Pittsburgh PA 15213-3890 USA CERT publications, information about FIRST representatives, and other security-related information are available from http://www.cert.org/ ftp://ftp.cert.org/pub/ CERT advisories and bulletins are also posted on the USENET newsgroup comp.security.announce To be added to our mailing list for CERT advisories and bulletins, send your email address to cert-advisory-request@cert.org In the subject line, type SUBSCRIBE your-email-address * Registered U.S. Patent and Trademark Office. The CERT Coordination Center is part of the Software Engineering Institute (SEI). The SEI is sponsored by the U. S. Department of Defense. 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