Published:
04 March 1998
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-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-98.029 -- Sun Security Bulletin #00163 Vulnerability in vacation program 5th March 1998 =========================================================================== Sun Microsystems, Inc. has released the following advisory concerning a vulnerability in the vacation program under SunOS versions 5.6, 5.6_x86, 5.5.1, 5.5.1_x86, 5.5, 5.5_x86, 5.4, 5.4_x86, 5.3, 4.1.4, and 4.1.3_U1. This vulnerability may allow attackers access to the account of the user running the vacation program. 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 Sun 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 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. Facsimile: (07) 3365 7031 - ----------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- ________________________________________________________________________________ Sun Microsystems, Inc. Security Bulletin Bulletin Number: #00163 Date: March 4, 1998 Cross-Ref: Secure Networks Inc. Vacation Vulnerability Security Bulletin Title: vacation ________________________________________________________________________________ The information contained in this Security Bulletin is provided "AS IS." Sun makes no warranties of any kind whatsoever with respect to the information contained in this Security Bulletin. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY WARRANTY OF NON-INFRINGEMENT OR IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE HEREBY DISCLAIMED AND EXCLUDED TO THE EXTENT ALLOWED BY APPLICABLE LAW. IN NO EVENT WILL SUN MICROSYSTEMS, INC. BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, SPECIAL, INDIRECT, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES HOWEVER CAUSED AND REGARDLESS OF ANY THEORY OF LIABILITY ARISING OUT OF THE USE OF OR INABILITY TO USE THE INFORMATION CONTAINED IN THIS SECURITY BULLETIN, EVEN IF SUN MICROSYSTEMS, INC. HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. If any of the above provisions are held to be in violation of applicable law, void, or unenforceable in any jurisdiction, then such provisions are waived to the extent necessary for this disclaimer to be otherwise enforceable in such jurisdiction. ________________________________________________________________________________ 1. Bulletins Topics Sun announces the release of patches for Solaris(tm) 2.6, 2.5.1, 2.5, 2.4, 2.3 (SunOS(tm) 5.6, 5.5.1, 5.5, 5.4, 5.3), SunOS 4.1.4, and 4.1.3_U1 which relate to a vulnerability in the vacation program. Sun recommends that you install the patches listed in section 4 immediately on systems running SunOS 5.6, 5.5.1, 5.5, 5.4, 5.3, 4.1.4, and 4.1.3_U1. 2. Who is Affected Vulnerable: SunOS versions 5.6, 5.6_x86, 5.5.1, 5.5.1_x86, 5.5, 5.5_x86, 5.4, 5.4_x86, 5.3, 4.1.4, and 4.1.3_U1 Not vulnerable: All other supported versions of SunOS. 3. Understanding the Vulnerability The vacation program automatically replies to incoming email on behalf of the recipient and notifies senders that the recipient is not currently reading the email. A vulnerability has been discovered which, if exploited, may allow attackers access to the account of the user running the vacation program. 4. List of Patches The following patches are available in relation to the above problem. OS version Patch ID __________ ________ SunOS 5.6 105518-01 SunOS 5.6_x86 105519-01 SunOS 5.5.1 105520-01 SunOS 5.5.1_x86 105521-01 SunOS 5.5 105533-01 SunOS 5.5_x86 105534-01 SunOS 5.4 102066-21 SunOS 5.4_x86 102064-19 SunOS 5.3 101782-02 SunOS 4.1.4 105466-01* SunOS 4.1.3_U1 105465-01* * Patches are available only for Sun's implementation of V8 sendmail. Sun recommends that customers using Sun's V5 sendmail upgrade to Sun's V8 sendmail. _______________________________________________________________________________ APPENDICES A. Patches listed in this bulletin are available to all Sun customers via World Wide Web at: <URL:http://sunsolve.sun.com/sunsolve/pubpatches/patches.html> B. Checksums for the patches listed in this bulletin are available via World Wide Web at: <URL:http://sunsolve.sun.com/sunsolve/pubpatches/patches.html> C. Sun security bulletins are available via World Wide Web at: <URL:http://sunsolve.sun.com/sunsolve/secbulletins> D. Sun Security Coordination Team's PGP key is available via World Wide Web at: <URL:http://sunsolve.sun.com/sunsolve/secbulletins/SunSCkey.txt> E. To report or inquire about a security problem with Sun software, contact one or more of the following: - Your local Sun answer centers - Your representative computer security response team, such as CERT - Sun Security Coordination Team. Send email to: security-alert@sun.com F. To receive information or subscribe to our CWS (Customer Warning System) mailing list, send email to: security-alert@sun.com with a subject line (not body) containing one of the following commands: Command Information Returned/Action Taken _______ _________________________________ help An explanation of how to get information key Sun Security Coordination Team's PGP key list A list of current security topics query [topic] The email is treated as an inquiry and is forwarded to the Security Coordination Team report [topic] The email is treated as a security report and is forwarded to the Security Coordinaton Team. Please encrypt sensitive mail using Sun Security Coordination Team's PGP key send topic A short status summary or bulletin. For example, to retrieve a Security Bulletin #00138, supply the following in the subject line (not body): send #138 subscribe Sender is added to our mailing list. To subscribe, supply the following in the subject line (not body): subscribe cws your-email-address Note that your-email-address should be substituted by your email address. unsubscribe Sender is removed from the CWS mailing list. ________________________________________________________________________________ Copyright 1998 Sun Microsystems, Inc. All rights reserved. Sun, Sun Microsystems, Solaris and SunOS are trademarks or registered trademarks of Sun Microsystems, Inc. in the United States and other countries. This Security Bulletin may be reproduced and distributed, provided that this Security Bulletin is not modified in any way and is attributed to Sun Microsystems, Inc. and provided that such reproduction and distribution is performed for non-commercial purposes. - -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBNP2dzbdzzzOFBFjJAQGokwP/RTmQwZqA41FWLss0BIjEmVjXP0T+V+TJ iKo7z8kZhYWvDuiMucpZQ6D/GJe5szXoMcAro4Gt8gUr5tnmCH7dcR1QTyPiXUB3 hwhMX5ih5z9m6yuSxhYdBgnDm5DglQWOk8+dtfwsNWMcPQm/BOkIRvcoKfVs2cBn nBOnLb/MQmU= =GYpq - -----END PGP SIGNATURE----- - ----------------------------END INCLUDED TEXT-------------------- -----BEGIN PGP SIGNATURE----- Version: 2.6.3i Charset: noconv Comment: ftp://ftp.auscert.org.au/pub/auscert/AUSCERT_PGP.key iQCVAwUBNQAAgih9+71yA2DNAQEZSgP/RiZhR6TCkAxf3wD9AQ7pOO2V23ZSn1lL saI3X+pbxcezqCy4zcJcCifvbyPszuodabvLlo9ZgpK/m1Ay5HrDQCkZ+q1jlbWf LsbEfs5V6wq6iEcFeVbdony5nVNadQDp96eGzmoP3lKGglT1TR/YJ3e0Rlxm50xB Dgo+G9dBrZs= =XIHz -----END PGP SIGNATURE-----