From aleph1@DFW.NET Wed Nov 26 01:18:22 1997 Date: Mon, 24 Nov 1997 11:01:06 -0600 From: Aleph One To: BUGTRAQ@NETSPACE.ORG Subject: HPSBUX9704-057 Security Vulnerability in ppl command HP Support Information Digests =============================================================================== o HP Electronic Support Center World Wide Web Service --------------------------------------------------- If you subscribed through the HP Electronic Support Center and would like to be REMOVED from this mailing list, access the HP Electronic Support Center on the World Wide Web at: http://us-support.external.hp.com Login using your HP Electronic Support Center User ID and Password. Then select Support Information Digests. You may then unsubscribe from the appropriate digest. =============================================================================== Digest Name: Daily Security Bulletins Digest Created: Mon Nov 24 3:00:04 PST 1997 Table of Contents: Document ID Title --------------- ----------- HPSBUX9704-057 Security Vulnerability in ppl command The documents are listed below. ------------------------------------------------------------------------------- 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--------------------------------------