AUSCERT External Security Bulletin Redistribution

               ESB-97.015 -- Hewlett Packard Advisory on MPower
                               30 January 1997


HP have released the following Security Bulletin providing revised
information concerning a vulnerability in the MPower product described
in a previous HP security bulletin.

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

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 4477
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
	AUSCERT personnel answer during Queensland business hours
	which are GMT+10:00 (AEST).
	On call after hours for emergencies.

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Document ID:  HPSBUX9701-051
Date Loaded:  970203
      Title:  Security Vulnerability in the MPower product

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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.

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PROBLEM:  Security vulnerability in the MPower product.

PLATFORM: HP 9000 Series 700/800s running versions of HP-UX 10.X

DAMAGE:   Vulnerabilities exist allowing users to increase privileges.

SOLUTION: **REVISED 01** Change the permissions of the following files
          to 0555:


          or apply PHSS_9773.

          NOTE: /opt/fax/bin/init_cover was added to the list as of
                Revision 1 of this bulletin.

AVAILABILITY:  PHSS_9773 is available now.

   A. Background
      The files listed install with incorrect permissions.

   B. Fixing the problem
      The permissions should be 0555.

   C. Recommended solution
      Install PHSS_9773.

   D. Impact of the patch
      PHSS_9773 changes the permissions.  Note that /opt/fax/bin/init_cover
      will now work only for users "root" and "fax".

   E. To subscribe to automatically receive future NEW HP Security
      Bulletins from the HP SupportLine Digest service via electronic
      mail, do the following:

      1)  From your Web browser, access the URL:

      http://us-support.external.hp.com (US,Canada,
      Asia-Pacific, and Latin-America)

      http://europe-support.external.hp.com  (Europe)

      2)  On the HP Electronic Support Center main screen, select
      the hyperlink "Support Information Digests".

      3)  On the "Welcome to HP's Support Information Digests" screen,
      under the heading "Register Now", select the appropriate hyperlink
      "Americas and Asia-Pacific", or "Europe".

      4)  On the "New User Registration" screen, fill in the fields for
      the User Information and Password and then select the button labeled
      "Submit New User".

      5)  On the "User ID Assigned" screen, select the hyperlink
      "Support Information Digests".

      ** Note what your assigned user ID and password are for future

      6)  You should now be on the "HP Support Information Digests Main"
      screen.  You might want to verify that your email address is correct
      as displayed on the screen.  From this screen, you may also
      view/subscribe to the digests, including the security bulletins

      To get a patch matrix of current HP-UX and BLS security patches
      referenced by either Security Bulletin or Platform/OS, click on
      following screens in order:
         Technical Knowledge Database
         Browse Security Bulletins
         Security Bulletins Archive
         HP-UX Security Patch Matrix

   F. 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 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

   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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Comment: ftp://ftp.auscert.org.au/pub/auscert/AUSCERT_PGP.key