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Digest Name:  Daily Security Bulletins Digest
    Created:  Wed Apr 23  3:00:08 PDT 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:  970423
      Title:  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
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________________________________________________________________________
-----End of Document ID:  HPSBUX9704-057--------------------------------------