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             AUSCERT External Security Bulletin Redistribution

       ESB-2001.078 -- HP Support Information Digests HPSBMP0102-009
                  Sec. Vulnerability in MPE/ix linkeditor
                             23 February 2001

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:                linkeditor
Vendor:                 Hewlett-Packard
Operating System:       MPE/iX 5.5 and newer
Platform:               HP3000
Impact:                 Increased Privileges
                        Reduced Security
Access Required:        Existing Account

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Document ID:  HPSBMP0102-009
Date Loaded:  20010220
      Title:  Sec. Vulnerability in MPE/ix linkeditor

- ----------------------------------------------------------------------
   HEWLETT-PACKARD COMPANY SECURITY BULLETIN: #009, 20 Feb. '01
- ----------------------------------------------------------------------
    The information in the following Security Bulletin 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 Bulletin as soon as possible.
- ----------------------------------------------------------------------
PROBLEM:  Normal users of linkeditor can gain certain capabilities
          that are allowed for system manager.

PLATFORM: HP3000 running MPE/iX release 5.5 and newer.

DAMAGE:   Users can obtain unauthorized privileges and can compromise
          system integrity.

SOLUTION: Apply the patch noted below.
          For MPE/iX 6.5 release, install LNKLXG1A,
              MPE/iX 6.0 release, install LNKLXG1B,
              MPE/iX 5.5 release, install LNKLXG1C.

AVAILABILITY: The patches are available now.
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   A. Background
      Hewlett-Packard Company has learned of a procedure by which
      a user can gain additional capabilities using linkeditor.

   B. Recommended solution
      Apply the appropriate patches to correct the problem:

      For MPE/iX 6.5 release, install LNKLXG1A
          MPE/iX 6.0 release, install LNKLXG1B,
          MPE/iX 5.5 release, install LNKLXG1C.

      NOTE: Hewlett-Packard Company will not produce any patches for
            releases MPE/iX 4.5 and MPE/iX 5.0.

   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://itrc.hp.com

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

      Use the 'Login' tab at the left side of the screen to login
      using your ID and password.  Check with your system
      administrator to see if you have an existing login or use
      the "Register" button at the left to create a login.  You
      will need to login in order to gain access to many areas of
      the ITRC. Remember to save the User ID assigned to you, and
      your password.

      Under the Maintenance and Support Menu, click on the "more..."
      link.  Under the "Notifications" section (near the bottom of
      the page), select "Support Information Digests".

      To -subscribe- to future HP Security Bulletins or other
      Technical Digests, click the check box (in the left column)
      for the appropriate digest and then click the "Update
      Subscriptions" button at the bottom of the page.

       or

      To -review- bulletins already released, select the link
      (in the middle column) for the appropriate digest.

      To -gain access- to the Security Patch Matrix, select
      the link for "hp security bulletins archive" near the bottom.
      Once in the archive the top 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:

      ftp.itrc.hp.com
      ~ftp/export/patches/hp-ux_patch_matrix"

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

   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 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.
______________________________________________________________________
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