-----BEGIN PGP SIGNED MESSAGE----- __________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN HP-UX FTP Vulnerability November 29, 1995 18:00 GMT Number G-05 _________________________________________________________________________________ PROBLEM: Security vulnerability in ftp in releases 9.X and 10.X of HP-UX PLATFORM: HP-UX 9.X and 10.X, on HP 9000 series 300/400s and 700/800s DAMAGE: A vulnerability in ftp behavior exists which involves ftp server bouncing. SOLUTION: Apply patch PHNE_6013 (series 700/800, HP-UX 9.x), or PHNE_6014 (series 700/800, HP-UX 10.x), or PHNE_6146 (series 300/400, HP-UX 9.x), or PHNE_6170 (series 700, HP-UX 9.09), or PHNE_6169 (series 700, HP-UX 9.09+), or PHNE_6171 (series 800, HP-UX 9.08) PHNE_5965 (series 700, HP-UX 10.09) - --------------------------------------------------------------------------------- VULNERABILITY The vulnerability allows users to exploit ftp. ASSESSMENT: - --------------------------------------------------------------------------------- Hewlett-Packard has made public a vulnerability in their ftp and ftpd software. Below is the information they have released. [ Start HP Security Bulletin Release ] - ------------------------------------------------------------------------- HEWLETT-PACKARD SECURITY BULLETIN: HPSBUX9511-028, 28 Nov 95 - ------------------------------------------------------------------------- Hewlett-Packard recommends that the information in the following Security Bulletin should be acted upon as soon as possible. Hewlett- Packard 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: Security vulnerability in ftp in releases 9.X and 10.X of HP-UX PLATFORM: HP 9000 series 300/400s and 700/800s DAMAGE: A vulnerability in ftp behavior exists which involves ftp server bouncing. This is a cumulative ftp(1) and ftpd(1M) patch. SOLUTION: Apply patch PHNE_6013 (series 700/800, HP-UX 9.x), or PHNE_6014 (series 700/800, HP-UX 10.x), or PHNE_6146 (series 300/400, HP-UX 9.x), or PHNE_6170 (series 700, HP-UX 9.09), or PHNE_6169 (series 700, HP-UX 9.09+), or PHNE_6171 (series 800, HP-UX 9.08) PHNE_5965 (series 700, HP-UX 10.09) AVAILABILITY: All patches are available now, except for the 9.0X BLS patches which will be available after January 2, 1996. _________________________________________________________________________ I. Update A. Vulnerability The vulnerability allows users to exploit ftp. If these patches are properly installed, the vulnerability cannot be exploited. It has been found that all HP-UX systems have this vulnerability. B. Fixing the problem The vulnerability can be eliminated from releases 9.x and 10.x of HP-UX by applying a patch. To treat only the commercial releases of HP-UX prior to 9.x, administrators should make plans to upgrade their systems to a currently supported release listed above. Hewlett-Packard recommends that all customers concerned with the security of their HP-UX systems either apply the appropriate patch described above as soon as possible. Side effects: none. C. How to Install the Patch (for HP-UX 9.x and 10.x) 1. Determine which patch is appropriate for your hardware platform and operating system: For the Commercial HP-UX releases: PHNE_6013 (series 700/800, HP-UX 9.x), or PHNE_6014 (series 700/800, HP-UX 10.x), or PHNE_6146 (series 300/400, HP-UX 9.x). For the BLS HP-UX releases: PHNE_6169 (series 700, HP-UX 9.09+), or PHNE_6170 (series 700, HP-UX 9.09), or PHNE_6171 (series 800, HP-UX 9.08), or PHNE_5965 (series 700, HP-UX 10.09). The three 9.0x B Level Security (BLS) patches will be available after January 2, 1996. 2. Hewlett Packard's HP-UX patches are available via email and World Wide Web. To obtain a copy of the HP SupportLine email service user's guide, send the following in the TEXT PORTION OF THE MESSAGE to support@us.external.hp.com (no Subject is required): send guide The user's guide explains the process for downloading HP-UX patches via email and other services available. World Wide Web service for downloading of patches is available via our URL: (http://us.external.hp.com/) 3. Apply the patch to your HP-UX system. 4. Examine /tmp/update.log for any relevant WARNINGs or ERRORs. This can be done as follows: a. At the shell prompt, type "tail -60 /tmp/update.log | more" b. Page through the next three screens via the space bar, looking for WARNING or ERROR messages. D. Impact of the patch and workaround The patch for HP-UX releases 9.x and 10.x provides a new version of /usr/bin/ftp and /etc/ftpd which fixes the vulnerability. No patches will be available for versions of HP-UX prior to 9.0. To protect those affected systems, we recommend upgrading to a currently supported release of HP-UX. E. To subscribe to automatically receive future NEW HP Security Bulletins from the HP SupportLine mail service via electronic mail, send an email message to: support@us.external.hp.com (no Subject is required) Multiple instructions are allowed in the TEXT PORTION OF THE MESSAGE, here are some basic instructions you may want to use: To add your name to the subscription list for new security bulletins, send the following in the TEXT PORTION OF THE MESSAGE: subscribe security_info To retrieve the index of all HP Security Bulletins issued to date, send the following in the TEXT PORTION OF THE MESSAGE: send security_info_list To get a patch matrix of current HP-UX and BLS security patches referenced by either Security Bulletin or Platform/OS, put the following in the text portion of your message: send hp-ux_patch_matrix World Wide Web service for browsing of bulletins is available via our URL: (http://us.external.hp.com/) Choose "Support news", then under Support news, choose "Security Bulletins" F. To report new security vulnerabilities, send email to security-alert@hp.com [ End HP Security Bulletin Release ] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Hewlett-Packard for 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. 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 and DOE contractors, and 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 and DOE contractor sites 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://ciac.llnl.gov/ Anonymous FTP: ciac.llnl.gov (128.115.19.53) Modem access: +1 (510) 423-4753 (14.4K baud) +1 (510) 423-3331 (9600 baud) CIAC has several self-subscribing mailing lists for electronic publications: 1. 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To subscribe (add yourself) to one of our mailing lists, send the following request as the E-mail message body, substituting CIAC-BULLETIN, CIAC-NOTES, SPI-ANNOUNCE or SPI-NOTES for list-name and valid information for LastName FirstName and PhoneNumber when sending E-mail to ciac-listproc@llnl.gov: subscribe list-name LastName, FirstName PhoneNumber e.g., subscribe ciac-notes OUHara, Scarlett W. 404-555-1212 x36 You will receive an acknowledgment containing address, initial PIN, and information on how to change either of them, cancel your subscription, or get help. PLEASE NOTE: Many users outside of the DOE and ESnet 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 by sending email to docserver@first.org with an empty subject line and a message body containing the line: send first-contacts. 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) (F-24) Protecting SGI IRIX Systems Against SATAN (F-25) Cisco IOS Router Software Vulnerability (F-26) OSF/DCE Security Hole (F-27) Incorrect Permissions on /tmp (F-28) Vulnerability in SunOS 4.1.* Sendmail (-oR option) (F-28) Vulnerability in SunOS 4.1.* Sendmail (-oR option) (G-1) Telnetd Vulnerability (G-2) SunOS 4.1.X Loadmodule Vulnerability (G-3) AOLGOLD Trojan Program (G-4) X Authentication Vulnerability RECENT CIAC NOTES ISSUED (Previous Notes available from CIAC) Notes 07 - 3/29/95 A comprehensive review of SATAN Notes 08 - 4/4/95 A Courtney update Notes 09 - 4/24/95 More on the "Good Times" virus urban legend Notes 10 - 6/16/95 Discusses the PKZ300B Trojan, Logdaemon/FreeBSD vulnerability in S/Key, EBOLA Virus Hoax, and Caibua Virus Notes 11 - 7/31/95 Features include a Virus Update, Hats Off to Administrators, America On-Line Virus Scare, SPI 3.2.2 Released, The Die_Hard Virus Notes 12 - 9/12/95 Features include discussions on securely configuring Public Telnet Services, X Windows and announces the beta release of Merlin, describes the Microsoft Word Macro Viruses, and examines allegations of Inappropriate Data Collection in Win95 -----BEGIN PGP SIGNATURE----- Version: 2.6.2 Comment: Processed by Mailcrypt 3.3, an Emacs/PGP interface iQCVAwUBMLudR7nzJzdsy3QZAQECkwP/bgFwSR4cqQbqch7Xd2XcCjmWTx2Lf0Ws uNsA4kzh6dKqk7HqjVJ2R6dc60OOqX8QxqO+0lmUl8ui71KaM1YgKHEVJAE6Tn2n 3OvKsUskuwSijrQy8k5xJrZjRQ6bAgXzk9StROaB53z8OiflKM1cpkismTUhHB5E nr9VXX2XPQ0= =JRCO -----END PGP SIGNATURE-----