From ciac@tholia.llnl.gov Fri Mar 13 00:08:49 1998 From: CIAC Mail User To: ciac-bulletin@tholia.llnl.gov Date: Tue, 10 Mar 1998 16:36:29 -0800 (PST) Subject: CIAC Bulletin I-032: Sun Solaris Vulnerabilities (vacation, dtaction) [ For Public Release ] -----BEGIN PGP SIGNED MESSAGE----- __________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN Sun Solaris Vulnerabilities (vacation, dtaction) March 10, 1998 00:00 GMT Number I-032 ______________________________________________________________________________ PROBLEM: Sun has identified two vulnerabilities; 1) The vacation program that auto-responds to e-mail for absent recipients. 2) The dtaction utility which allows applications or shell scripts to invoke action requests. PLATFORM 1: 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. PLATFORM 2: SunOS versions 5.6, 5.6_x86, 5.5.1, 5.5.1_x86, 5.5, 5.5_x86, 5.4, and 5.4_x86 running CDE. DAMAGE: 1) If exploited, attackers may access the account of the user running the vacation program. 2) If exploited, unauthorized users may gain root access. SOLUTION: Apply patches listed below. ______________________________________________________________________________ VULNERABILITY CIAC recommends that the patches listed below be installed as ASSESSMENT: soon as possible. ______________________________________________________________________________ [ Start Sun Microsystems Bulletins ] 1) vacation program ______________________________________________________________________________ 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: B. Checksums for the patches listed in this bulletin are available via World Wide Web at: C. Sun security bulletins are available via World Wide Web at: D. Sun Security Coordination Team's PGP key is available via World Wide Web at: 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. 2) dtaction utility ______________________________________________________________________________ Sun Microsystems, Inc. Security Bulletin Bulletin Number:#00164 Date: March 4, 1998 Cross-Ref: Title: dtaction ______________________________________________________________________________ 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, and 2.4 (SunOS(tm) 5.6, 5.5.1, 5.5, and 5.4) which relate to a vulnerability in dtaction. Sun recommends that you install the patches listed in section 4 immediately on systems running SunOS 5.6, 5.5.1, 5.5, and 5.4 with the Common Desktop Environment (CDE). 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, and 5.4_x86 running CDE Not vulnerable: All other supported versions of SunOS. 3. Understanding the Vulnerability The dtaction utility allows applications or shell scripts, which are otherwise not connected into the CDE development environment, to invoke action requests. Due to insufficient bounds checking on arguments supplied to dtaction, it is possible to overwrite the internal stack space of dtaction. As dtaction is setuid root, this vulnerability may be exploited to gain root access. 4. List of Patches The following patches are available in relation to the above problem. CDE version Patch ID ___________ ________ 1.2 105669-02 1.2_x86 105670-02 1.02 105716-02 1.02_x86 105717-02 1.01 105714-02 1.01_x86 105715-02 ______________________________________________________________________________ APPENDICES A. Patches listed in this bulletin are available to all Sun customers via World Wide Web at: B. Checksums for the patches listed in this bulletin are available via World Wide Web at: C. Sun security bulletins are available via World Wide Web at: D. Sun Security Coordination Team's PGP key is available via World Wide Web at: 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. [ End Sun Microsystems Bulletins ] ______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Sun Microsystems for the information contained in this bulletin. ______________________________________________________________________________ CIAC, the Computer Incident Advisory Capability, is the computer security incident response team for the U.S. Department of Energy (DOE) and the emergency backup response team for the National Institutes of Health (NIH). CIAC is located at the Lawrence Livermore National Laboratory in Livermore, California. CIAC is also a founding member of FIRST, the Forum of Incident Response and Security Teams, a global organization established to foster cooperation and coordination among computer security teams worldwide. CIAC services are available to DOE, DOE contractors, and the NIH. CIAC can be contacted at: Voice: +1 510-422-8193 FAX: +1 510-423-8002 STU-III: +1 510-423-2604 E-mail: ciac@llnl.gov For emergencies and off-hour assistance, DOE, DOE contractor sites, and the NIH may contact CIAC 24-hours a day. During off hours (5PM - 8AM PST), call the CIAC voice number 510-422-8193 and leave a message, or call 800-759-7243 (800-SKY-PAGE) to send a Sky Page. CIAC has two Sky Page PIN numbers, the primary PIN number, 8550070, is for the CIAC duty person, and the secondary PIN number, 8550074 is for the CIAC Project Leader. Previous CIAC notices, anti-virus software, and other information are available from the CIAC Computer Security Archive. World Wide Web: http://www.ciac.org/ (or http://ciac.llnl.gov -- they're the same machine) Anonymous FTP: ftp.ciac.org (or ciac.llnl.gov -- they're the same machine) Modem access: +1 (510) 423-4753 (28.8K baud) +1 (510) 423-3331 (28.8K baud) CIAC has several self-subscribing mailing lists for electronic publications: 1. CIAC-BULLETIN for Advisories, highest priority - time critical information and Bulletins, important computer security information; 2. SPI-ANNOUNCE for official news about Security Profile Inspector (SPI) software updates, new features, distribution and availability; 3. SPI-NOTES, for discussion of problems and solutions regarding the use of SPI products. Our mailing lists are managed by a public domain software package called Majordomo, which ignores E-mail header subject lines. To subscribe (add yourself) to one of our mailing lists, send the following request as the E-mail message body, substituting ciac-bulletin, spi-announce OR spi-notes for list-name: E-mail to ciac-listproc@llnl.gov or majordomo@tholia.llnl.gov: subscribe list-name e.g., subscribe ciac-bulletin You will receive an acknowledgment email immediately with a confirmation that you will need to mail back to the addresses above, as per the instructions in the email. This is a partial protection to make sure you are really the one who asked to be signed up for the list in question. If you include the word 'help' in the body of an email to the above address, it will also send back an information file on how to subscribe/unsubscribe, get past issues of CIAC bulletins via email, etc. PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing communities receive CIAC bulletins. If you are not part of these communities, please contact your agency's response team to report incidents. Your agency's team will coordinate with CIAC. The Forum of Incident Response and Security Teams (FIRST) is a world-wide organization. A list of FIRST member organizations and their constituencies can be obtained via WWW at http://www.first.org/. This document was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor the University of California nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation or favoring by the United States Government or the University of California. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or the University of California, and shall not be used for advertising or product endorsement purposes. LAST 10 CIAC BULLETINS ISSUED (Previous bulletins available from CIAC) I-022: IBM AIX "routed" daemon Vulnerability I-023: Macro Virus Update I-024: CGI Security Hole in EWS1.1 Vulnerability I-025a: Windows NT based Web Servers File Access Vulnerability I-026: Vulnerability in ssh-agent I-027b: HP-UX Vulnerabilities (CUE, CDE, land) I-028: Vulnerabilities in CDE I-029: IBM AIX Telnet Denial-of-Service Vulnerability I-030: SunOS volrmmount (1) Vulnerability I-031a: WindowsNT-95 Attacks on DOE Sites -----BEGIN PGP SIGNATURE----- Version: 4.0 Business Edition iQCVAwUBNQXS77nzJzdsy3QZAQHc2gP+ND5AcXIkrE78+cXUL6m4FrzmcISetxCe b0hulBqaLH3e5/DPqPxj1LmK11cFUvkIkCF0dIXrujguXzKkN6TQk8IatVBDUO00 3XGfbGRYcmK1ia5VP1/80PmYF7k9H8A4y2Xcc49EWrXbaFK9bC4t/tyHLcHz5iUY bCeAD1qgyj0= =CL3B -----END PGP SIGNATURE-----