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              AUSCERT External Security Bulletin Redistribution
                             
             ESB-1999.191 -- HP SECURITY BULLETIN HPSBUX9912-107
                     Security Vulnerability in VVOS TGP
                              15 December 1999

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Hewlett-Packard has released the following bulletin concerning a
vulnerability in the Trusted Gateway Proxy (TGP) software on HP9000 Series 
7/800 running HP-UX 10.24 which was introduced with patch PHSS_17692 for
VirtualVault A.03.50 (VVOS). This vulnerability may allow programs to be
proxied by the TGP without having authorised access.  This vulnerability
may therefore allow remote users to gain privileged access to the local
network.

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Document ID:  HPSBUX9912-107
Date Loaded:  19991213
      Title:  Security Vulnerability in VVOS TGP

- -------------------------------------------------------------------------
      HEWLETT-PACKARD COMPANY SECURITY ADVISORY: #000107 14 Dec. 1999
- -------------------------------------------------------------------------

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:  Programs running on the VirtualVault may be proxied by
          the Trusted Gateway Proxy (TGP) without having proper access.

PLATFORM: HP9000 Series 7/800 running HP-UX 10.24 (VVOS) with
          VirtualVault A.03.50 (either US/Canada or International),
          _ONLY_ with patch PHSS_17692 installed.

DAMAGE:   Unprivileged processes may gain access to the INSIDE network.

SOLUTION: Apply the patch noted below.

AVAILABILITY: The patch is currently available.
- -------------------------------------------------------------------------
I.
   A. Background
      VirtualVault A.03.50 patch PHSS_17692 introduced a vulnerability
      in the Trusted Gateway Proxy (TGP) that could allow programs to
      be proxied by the TGP without having proper access.

   B. Fixing the problem
      This problem can be eliminated by installing the following patch,
      which supersedes the original PHSS_17692.
      Hewlett-Packard recommends that the following patch be loaded
      as applicable for HP-UX 10.24 (VVOS):
         with VirtualVault A.03.50 (International):      PHSS_20476
         with VirtualVault A.03.50 (US/Canada):          PHSS_20476

   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.
________________________________________________________________________
- -----End of Document ID:  HPSBUX9912-107--------------------------------------



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