AUSCERT External Security Bulletin Redistribution
             ESB-2000.007 -- HP SECURITY BULLETIN HPSBUX0001-108 
			         REVISED 01
                      Security Vulnerability in Aserver
                               07 January 2000


Hewlett-Packard has released the following *REVISED* bulletin concerning
a vulnerability in Aserver on HP9000 Series 7/800 running HP-UX releases
10.X and 11.X.

This vulnerability may be exploited to gain root access.

This is the same vulnerability as reported in CIAC Bulletin K-014 which
was re-distributed as AusCERT ESB-2000.001.

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

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

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      Under the Maintenance and Support Menu (Electronic Support Center):
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      On the "Support Information Digest Main" page:
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      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:


   D. To report new security vulnerabilities, send email to


       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

      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.
- -----End of Document ID:  HPSBUX0001-108--------------------------------------

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This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content.  The decision to use any or all of this information is
the responsibility of each user or organisation, and should be done so in
accordance with site policies and procedures.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the original authors to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:


If you believe that your system has been compromised, contact AusCERT or
your representative in FIRST (Forum of Incident Response and Security

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
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