__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN HP-UX vacation Security Vulnerability December 3, 1998 23:00 GMT Number J-017 ______________________________________________________________________________ PROBLEM: Hewlett-Packard has identified a vulnerability in the vacation program. The program erroneously passes parameters to sendmail. PLATFORM: HP 9000 series 700/800 running HP-UX releases 9.x, 10.x, and 11.0. DAMAGE: Remote users could modify system files. SOLUTION: Install patches listed below. ______________________________________________________________________________ VULNERABILITY Risk is high. Hewlett-Packard does recommend installation of ASSESSMENT: patches as soon as possible. ______________________________________________________________________________ [ Revised December 3, 1998 with additional patch information ] [ Start Hewlett-Packard Advisory ] Document ID: HPSBUX9811-087 Date Loaded: 19981130 Title: Security Vulnerability with vacation ------------------------------------------------------------------------- **REVISED 01** HEWLETT-PACKARD COMPANY SECURITY BULLETIN: #00087, 16 November 1998 Last Revised: 30 November 1998 ------------------------------------------------------------------------- The information in the following Security Bulletin should be acted upon as soon as possible. Hewlett-Packard Company will not be liable for any consequences to any customer resulting from customer's failure to fully implement instructions in this Security Bulletin as soon as possible. ------------------------------------------------------------------------- PROBLEM: The vacation program erroneously passes parameters to sendmail. PLATFORM: HP 9000 series 700/800 running HP-UX releases 9.X, 10.X and 11.0. DAMAGE: Remote users could modify system files. SOLUTION: **REVISED 01** Install the patches listed below. AVAILABILITY: All patches are available now. CHANGE SUMMARY: This revision includes HP-UX 10.24 patches. ------------------------------------------------------------------------- I. A. Background The vacation program shipped with HP-UX in /usr/bin/vacation suffers from a fault in that it misunderstands it's inputs and invokes sendmail with the wrong parameters. Both sendmail 5.65 and 8.7.6 are vulnerable to this malady. Also the vacation program ignores a TO: header when the "O" is upper case. B. Fixing the problem **REVISED 01** Install the applicable patch: HP-UX revision 11.X for HP9000 Series 7/800: PHNE_16295 ---->>>HP-UX revision 10.24 for HP9000 Series 7/800: PHNE_16955 HP-UX revision 10.20 for HP9000 Series 7/800: PHNE_14042 HP-UX revision 10.0X-10 for HP9000 Series 7/800: PHNE_16726 HP-UX revision 9.X for HP9000 Series 7/800: PHNE_16725 C. To subscribe to automatically receive future NEW HP Security Bulletins from the HP Electronic Support Center via electronic mail, do the following: Use your browser to get to the HP Electronic Support Center page at: http://us-support.external.hp.com (for US, Canada, Asia-Pacific, & Latin-America) http://europe-support.external.hp.com (for Europe) Login with your user ID and password (or register for one). Remember to save the User ID assigned to you, and your password. Once you are in the Main Menu: To -subscribe- to future HP Security Bulletins, click on "Support Information Digests". To -review- bulletins already released from the main Menu, click on the "Search Technical Knowledge Database." Near the bottom of the next page, click on "Browse the HP Security Bulletin Archive". Once in the archive there is another link to our current Security Patch Matrix. Updated daily, this matrix categorizes security patches by platform/OS release, and by bulletin topic. The security patch matrix is also available via anonymous ftp: us-ffs.external.hp.com ~ftp/export/patches/hp-ux_patch_matrix D. To report new security vulnerabilities, send email to security-alert@hp.com Please encrypt any exploit information using the security-alert PGP key, available from your local key server, or by sending a message with a -subject- (not body) of 'get key' (no quotes) to security-alert@hp.com. Permission is granted for copying and circulating this Bulletin to Hewlett-Packard (HP) customers (or the Internet community) for the purpose of alerting them to problems, if and only if, the Bulletin is not edited or changed in any way, is attributed to HP, and provided such reproduction and/or distribution is performed for non-commercial purposes. Any other use of this information is prohibited. HP is not liable for any misuse of this information by any third party. ________________________________________________________________________ - -----End of Document ID: HPSBUX9811-087-------------------------------------- [ End Hewlett-Packard Advisory ] ______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Hewlett-Packard or 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. 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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) J-007: HP OpenView Omniback II Vulnerability J-008: FreeBSD TCP RST Denial of Service Vulnerability J-009: Cisco IOS Command History Release at Login Prompt J-010: SGI Buffer Overflow Vulnerabilities ( xterm(1), Xaw library) J-011: Microsoft IE 4.01 Untrusted Scripted Paste (Cuartango Vul.) J-012: SGI IRIX routed(1M) Vulnerability J-013: SGI IRIX autofsd Vulnerability J-014: IBM AIX automountd Vulnerability J-015: HP SharedX Denial-of-Service Vulnerability J-016: Cisco IOS DFS Access List Leakage Vulnerabilities -----BEGIN PGP SIGNATURE----- Version: 4.0 Business Edition iQCVAwUBNlNDabnzJzdsy3QZAQEWcwQAiVXvfB7ODGR7/PXl1Q/GX3XDhBLB8MbN DWoM6gHiEEg+J/LmIf4EoF7mO7yPY45vvDGYgCW76NRsFpfTDJ0odd4YpTduWiCv SlNPQzrOG7fEgsBeXBzdfFWkVQIa5mdohB5Elo2ZVLDBh5xJLP3J4xZs2J+/ngFg Ux8FzOwvWFE= =Je1C -----END PGP SIGNATURE-----