From support@us.external.hp.com Wed Apr 23 18:08:09 1997 Date: Wed, 23 Apr 1997 04:34:06 -0700 From: HPSL Mail Service Reply-To: support-feedback@us.external.hp.com To: security_info_4@us.external.hp.com Subject: RE: Security Bulletins Digest -------- =============================================================================== ***HP SupportLine Mail Service Notice*** This digest contains a summary of all newly received Security Bulletins. You do not have to have any form of support from Hewlett-Packard to subscribe to this digest or to procure the recommended patches via the HP SupportLine mail service. ------------------------------------------------------------------------------- To obtain a copy of the HP SupportLine mail service user's guide, send the following (in the TEXT PORTION OF THE MESSAGE to) to the HP SupportLine mail service. 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To: support@us.external.hp.com Message Text: unsubscribe security_info =============================================================================== Digest Name: security_info Description: Daily Security Bulletins Digest Created: Wed Apr 23 03:00:05 1997 PDT ------------------------------------------------------------------------------- Summary of 'Daily Security Bulletins Digest' documents ------------------------------------------------------------------------------- Document Id Description Page 1 ------------------------------------------------------------------------------- HPSBUX9704-057 Security Vulnerability in ppl command =============================================================================== Detailed list of 'Daily Security Bulletins Digest' documents =============================================================================== Document Id: [HPSBUX9704-057] Date Loaded: [04-23-97] Description: Security Vulnerability in ppl command =============================================================================== ------------------------------------------------------------------------- HEWLETT-PACKARD SECURITY BULLETIN: #00057, 22 April 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: PHNE_10290 for all platforms with HP-UX releases 9.X PHNE_10363 for all platforms with HP-UX releases 10.01 PHNE_10364 for all platforms with HP-UX releases 10.10 PHNE_10365 for all platforms with HP-UX releases 10.20 AVAILABILITY: All patches are currently available. ------------------------------------------------------------------------- I. A. Background A vulnerability in the ppl executable ([/usr]/bin/ppl) exists. (Detailed in AUSCERT Advisory AA-97.07). 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. HP-UX version 10.00 users are encouraged to upgrade to HP-UX version 10.01 or above. 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 Electronic Support Center via electronic mail, 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. ________________________________________________________________________