-----BEGIN PGP SIGNED MESSAGE----- __________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN HP-UX ppl executable Vulnerability November 26, 1997 18:00 GMT Number H-31a ______________________________________________________________________________ PROBLEM: A vulnerability with the ppl executable ([/usr]/bin/ppl) has been identified. 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: Install patches listed below. ______________________________________________________________________________ VULNERABILITY Exploit details involving this vulnerability have been made ASSESSMENT: publicly available. ______________________________________________________________________________ [ Appended to H-31 on November 26,1997 with additional patch information from Hewlett-Packard ] [ Start Hewlett-Packard Advisory ] ============================================================================= Document Id: [HPSBUX9702-053] Date Loaded: [02-13-97] Description: Security Vulnerability in the ppl executable ============================================================================== - ------------------------------------------------------------------------- HEWLETT-PACKARD SECURITY BULLETIN: #00053, 13 February 1997 - ------------------------------------------------------------------------- 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 [/usr]/bin/ppl PLATFORM: HP 9000 Series 700/800s running HP-UX releases 9.X & 10.X DAMAGE: Vulnerabilities exist allowing local users to gain root privileges. SOLUTION: Apply patch: PHNE_9378 for all platforms with HP-UX releases 9.X PHNE_9375 for all platforms with HP-UX releases 10.00/10.01 PHNE_9376 for all platforms with HP-UX releases 10.10 PHNE_9771 for all platforms with HP-UX releases 10.20 AVAILABILITY: All patches are available now. - ------------------------------------------------------------------------- I. A. Background A vulnerability with the ppl executable ([/usr]/bin/ppl) has been discovered. The fileset affected is Networking.SLIP-RUN. 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 ] [ Start Appended Hewlett-Packard Advisory ] Document ID: HPSBUX9704-057 Date Loaded: 971124 Title: Security Vulnerability in ppl command - ------------------------------------------------------------------------- **REVISED 01** HEWLETT-PACKARD SECURITY BULLETIN: #00057, 22 April 1997 Last Revised: 24 November 1997 - ------------------------------------------------------------------------- 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 [/usr]/bin/ppl PLATFORM: HP 9000 Series 700/800s running HP-UX releases 9.X & 10.X DAMAGE: Vulnerability exists that could allow local users to gain root privileges. SOLUTION: Apply patch: **REVISED 01** PHNE_13179 for all platforms with HP-UX releases 9.X, PHNE_13180 for all platforms with HP-UX releases 10.00 & 10.01, PHNE_13181 for all platforms with HP-UX release 10.10, PHNE_13182 for all platforms with HP-UX release 10.20, PHNE_12499 for all platforms with HP-UX release 10.30. AVAILABILITY: All patches are currently available. CHANGE SUMMARY: This bulletin revision references new & improved patches. - ------------------------------------------------------------------------- I. A. Background A vulnerability in the ppl executable ([/usr]/bin/ppl) exists. (Detailed in AUSCERT Advisory AA-97.07). B. Fixing the problem **REVISED 01** The vulnerability can be eliminated from HP-UX releases 9.X and up to and including 10.30, by applying the appropriate patch. C. Recommended solution **REVISED 01** 1. Determine which patch is appropriate for your operating system. HP-UX version 10.00 users are encouraged to upgrade to HP-UX version 10.01 or above. NOTE: HP-UX release 10.24 (VVOS) is not vulnerable. World Wide Web service for downloading of patches is available for free by registered users via our URL at the Electronic Support Center (ESC). (See Section E below). 2. Apply the patch to your HP-UX system. 3. 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 ESC via electronic mail, and to download patches for free by registered users.do the following: User 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) Click on the Technical Knowledge Database, register as a user (remember to save the User ID assigned to you, and your password), and it will connect to a HP Search Technical Knowledge DB page. Near the bottom is a hyperlink to our Security Bulletin archive. Once in the archive there is another link to our current security patch matrix. Updated daily, this matrix is categorized by platform/OS release, and by bulletin topic. F. 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: HPSBUX9704-057-------------------------------------- [ End Appended 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. 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://ciac.llnl.gov/ Anonymous FTP: ciac.llnl.gov (198.128.39.53) 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) H-21: HP Security Vulnerabilities (newgrp, authentication, passwor H-22: talkd Buffer Overrun Vulnerability 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 -----BEGIN PGP SIGNATURE----- Version: 4.0 Business Edition iQCVAwUBNINAP7nzJzdsy3QZAQFWPwP+NYBWPpuYFVFk9ohwoXziapKxFrxkgUyY fqfPH4sYTlQpwYKolmpj8KPShjIsA8Rkz9dur6bRJDU96UQMHDibjpPhp670HhFj eHNSPaA2tBfniM4RuE5uyOvXASyINM0FhAqZ39DsGnF2jRvSdXEJ5l4SAWTCHIHT eP0iRG1XoHE= =pds6 -----END PGP SIGNATURE-----