-----BEGIN PGP SIGNED MESSAGE----- __________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN HP-UX ftpd/kftpd Vulnerability February 19, 1997 19:00 GMT Number H-33 ______________________________________________________________________________ PROBLEM: A vulnerability exists in the ftpd and kftpd executables. PLATFORM: HP 9000 series 700/800s running HP-UX 9.x & 10.x. DAMAGE: This vulnerability may allow local users to gain root privileges. SOLUTION: Apply available patches listed below. ______________________________________________________________________________ VULNERABILITY Exploit details involving this vulnerability has been made ASSESSMENT: publicly available. ______________________________________________________________________________ [ Start Hewlett-Packard Advisory ] ============================================================================== Document Id: [HPSBUX9702-055] Date Loaded: [02-19-97] Description: Security Vulnerability in the ftpd/kftpd executable ============================================================================== - ------------------------------------------------------------------------- HEWLETT-PACKARD SECURITY BULLETIN: HPSBUX9702-055, 19 February 1997 - ------------------------------------------------------------------------- The information in the following Security Advisory 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 Advisory as soon as possible. - ------------------------------------------------------------------------- PROBLEM: Security Vulnerability in ftpd/kftpd PLATFORM: HP 9000 Series 700/800s running HP-UX releases 9.X & 10.X DAMAGE: Vulnerability may allow regular and anonymous ftp users to access files with root privileges SOLUTION: Apply patch: PHNE_10008 for all platforms with HP-UX releases 9.X PHNE_10009 for all platforms with HP-UX releases 10.0X/10.10 PHNE_10010 for all platforms with HP-UX releases 10.20 PHNE_10011 for all platforms with HP-UX releases 10.20 (kftpd) AVAILABILITY: All patches are available now. - ------------------------------------------------------------------------- I. A. Background A vulnerability in the ftpd and kftpd executable has been discovered. B. Fixing the problem The vulnerability can be eliminated from HP-UX releases 9.X and 10.X by applying the appropriate patch. C. Recommended solution 1. Determine which patch is appropriate for your operating system. 2. Hewlett-Packard's HP-UX patches are available via email and the World Wide Web To obtain a copy of the Hewlett-Packard 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 users guide explains the HP-UX patch downloading process 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 (9.X), or /var/adm/sw/swinstall.log (10.X), for any relevant WARNING's or ERROR's. D. Impact of the patch The patches for HP-UX releases 9.X and 10.X provide enhancements to the ppl executable to avoid this vulnerability. E. To subscribe to automatically receive future NEW HP Security Bulletins from the HP SupportLine mail service via electronic mail, do the following: 1) From your Web browser, access the URL: http://us-support.external.hp.com (US,Canada, Asia-Pacific, and Latin-America) http://europe-support.external.hp.com (Europe) 2) On the HP Electronic Support Center main screen, select the hyperlink "Support Information Digests". 3) On the "Welcome to HP's Support Information Digests" screen, under the heading "Register Now", select the appropriate hyperlink "Americas and Asia-Pacific", or "Europe". 4) On the "New User Registration" screen, fill in the fields for the User Information and Password and then select the button labeled "Submit New User". 5) On the "User ID Assigned" screen, select the hyperlink "Support Information Digests". 6) You should now be on the "HP Support Information Digests Main" screen. You might want to verify that your email address is correct as displayed on the screen. From this screen, you may also view/subscribe to the digests, including the security bulletins digest. F. To report new security vulnerabilities, send email to security-alert@hp.com Please encrypt 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 Hewlett-Packard Advisory ] ______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Hewlett-Packard 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. 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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) H-23: Sendmail MIME Conversion Buffer Overrun Vulnerability H-24: IBM AIX(r) "gethostbyname()" Buffer Overrun Vulnerability H-25: Vulnerability in rlogin/term H-26: FreeBSD setlocale() Vulnerability H-27: HP-UX vgdisplay Buffer Overrun Vulnerability H-28: SGI IRIX startmidi/stopmidi Vulnerability H-29: HP-UX sendmail Patches Vulnerability H-30: Solaris ffbconfig Buffer Overrun Vulnerability H-31: HP-UX ppl executable Vulnerability H-32: HP-UX ppl Core Dump 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 PKZ300B Trojan, Logdaemon/FreeBSD, vulnerability in S/Key, EBOLA Virus Hoax, and Caibua Virus Notes 11 - 7/31/95 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 Securely configuring Public Telnet Services, X Windows, beta release of Merlin, Microsoft Word Macro Viruses, Allegations of Inappropriate Data Collection in Win95 Notes 96-01 - 3/18/96 Java and JavaScript Vulnerabilities, FIRST Conference Announcement, Security and Web Search Engines, Microsoft Word Macro Virus Update -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBMwyMwbnzJzdsy3QZAQGv3QP/djHVwE45VsuR1NsezTH9neKxKobQG0WH E/LIFx489zKiFK3BOX/fAzJiUuwnL03u4GRPAamx/7JGCKyVZY3lI6eQfD3ExGy1 FYl/yfvv11StQ/4q0XN613nqtvfoCmkMIm4Ld3TJGhy5JkVa/+g+6YD7ZUh5fD/1 qMjU7cDGVgY= =nf2S -----END PGP SIGNATURE-----