Document ID:  HPSBUX0001-108
Date Loaded:  20000105
      Title:  Security Vulnerability in Aserver (revised)

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**REVISED 01** HEWLETT-PACKARD COMPANY SECURITY ADVISORY: #00108, 01 Jan 2000
Last Revised: 5 January, 2000
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The information in the following Security Advisory should be acted upon
as soon as possible.  Hewlett-Packard Company 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.

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PROBLEM:  /opt/audio/bin/Aserver can be used to gain root access.

PLATFORM: HP9000 Series 7/800 running HP-UX releases 10.X and 11.X

DAMAGE:   Root access is possible.

SOLUTION: **REVISED 01** Change the Aserver permissions.

AVAILABILITY:  This advisory will be updated when patches are available.

CHANGE SUMMARY: This revision contains revised permission recommendations.
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I.
   A. Background
      A procedure to use /opt/audio/bin/Aserver to gain root access
      has been made public.

   B. Recommended solution
**REVISED 01**  | The need for suid permissions is being reviewed.
                | The only requirement for suid currently identified
                | is to allow any user to force a restart of the Aserver.
                | This feature may be eventually be removed.  Until a
                | patch is available the recommended solution, as root
                | is:
                |  chmod 555 /opt/audio/bin/Aserver

   C. To subscribe to automatically receive future NEW HP Security
      Bulletins from the HP IT Resource Center via electronic mail,
      do the following:

      Use your browser to get to the HP IT Resource Center page at:

       http://us-support.external.hp.com
              (for US, Canada, Asia-Pacific, & Latin-America)
       http://europe-support.external.hp.com     (for Europe)

      Under the Maintenance and Support Menu (Electronic Support Center):
       click on the "more..." link.  Then -

      To -subscribe- to future HP Security Bulletins, or
      To -review- bulletins already released
        click on "Support Information Digests" near the bottom of the
        page, under "Notifications".

      Login with your user ID and password (or register for one).
      (Remember to save the User ID assigned to you, and your password).

      On the "Support Information Digest Main" page:
      click on the "HP Security Bulletin Archive".

      Once in the archive the third link is to our current Security
      Patch Matrix.  Updated daily, this matrix categorizes security
      patches by platform/OS release, and by bulletin topic.

      The security patch matrix is also available via anonymous ftp:

      us-ffs.external.hp.com
      ~ftp/export/patches/hp-ux_patch_matrix



   D. 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 advisory to
      Hewlett-Packard (HP) customers (or the Internet community) for the
      purpose of alerting them to problems, if and only if, the advisory
      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.
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