From ciac@rumpole.llnl.gov Fri Feb 12 15:03:21 1999
From: CIAC Mail User <ciac@rumpole.llnl.gov>
To: ciac-bulletin@rumpole.llnl.gov
Date: Thu, 11 Feb 1999 14:52:10 -0800 (PST)
Subject: CIAC Bulletin J-027: Digital Unix Vulnerabilities ( at , inc ) 

[  For Public Release  ]
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             __________________________________________________________

                       The U.S. Department of Energy
                    Computer Incident Advisory Capability
                           ___  __ __    _     ___
                          /       |     /_\   /
                          \___  __|__  /   \  \___
             __________________________________________________________

                             INFORMATION BULLETIN

                  Digital Unix  Vulnerabilities ( at , inc )

February 11, 1999 17:00 GMT                                       Number J-027
______________________________________________________________________________
PROBLEM:       A potential security vulnerability has been identified in the 
               "at" and "inc" commands. 
PLATFORM:      Compaq's Tru64 running DIGITAL UNIX software; V4.0, V4.0a, 
               V4.0b, V4.0c, V4.0d, V4.0e. 
DAMAGE:        If exploited, users may gain unauthorized privileges. 
SOLUTION:      Install the appropriate patch kit. 
______________________________________________________________________________
VULNERABILITY  Risk is medium. Compaq recommends that all users determine the 
ASSESSMENT:    applicability of this information to their individual 
               situations and take appropriate action. 
______________________________________________________________________________

[  Start Compaq Computer Corp. Advisory  ]

______________________________________________________________
DATE:
08 FEB 1999

  TITLE: DIGITAL UNIX  at & inc   V4.0, V4.0a, V4.0b, V4.0c, 
             V4.0d, V4.0e
         - Potential Security Vulnerability
  ref#: SSRT0583U  "at" & "inc" 
          
  SOURCE: Compaq Computer Corporation
          Software Security Response Team 

 "Compaq is broadly distributing this Security Advisory in order
 to bring to the attention of users of Compaq products the
 important security information contained in this Advisory. 
 Compaq recommends that all users determine the applicability of
 this information to their individual situations and take
 appropriate action.

 Compaq does not warrant that this information is necessarily
 accurate or complete for all user situations and, consequently,
 Compaq will not be responsible for any damages resulting from
 user's use or disregard of the information provided in this
 Advisory."

- ----------------------------------------------------------------------
IMPACT:
                                                                       
A potential  potential security vulnerability has been discovered 
with the "at" and "inc" for Compaq's Tru64/DIGITAL UNIX software, 
where under certain circumstances, an user may gain 
unauthorized privileges. 
  
- -----------------------------------------------------------------------
RESOLUTION:

 This potential security problem has been resolved and a
 patch for this problem has been made available for 
 Compaq's Tru64/DIGITAL  UNIX V4.0 to V4.0e 
  
  
 *This solution will be included in the next distributed release of 
  Compaq's Tru64/DIGITAL UNIX 

The patch may be obtained from the World Wide Web at the 
following FTP address:

    http://www.service.digital.com/html/patch_service.html
    Use the Browse Patch Tree access option, select DIGITAL_UNIX 
    directory then choose the appropriate version directory 
    and download the patch accordingly.
   
  Note: [1]  The appropriate patch kit must be installed
    following any upgrade to V4.0a, V4.0b, or V4.0c, 
      V4.0d, V4.0e.  If you upgrade from one version to
  another, i.e., V4.0b to V4.0d you should re-install
  these patches. 

        
           [2]   IMPORTANT - Please review the appropriate 
      release notes prior to installation of this patch.
    
 Additional Considerations:

   The following components are updated by these patches:
     
  /usr/bin/at    (the "at" command)
   /usr/bin/mh/inc  (The MH message handling system's "inc" command)
   /usr/shlib/libmh.so  (The MH shared library)

 If you believe you have, or aren't sure if you have, previously
 installed a patch to any of these modules you should contact your
 normal Compaq Services support channel.

 Compaq appreciates your cooperation and patience. We regret any
 inconvenience applying this information may cause.

 As always, Compaq urges you to periodically review your system
 management and security procedures. 

  Compaq will continue to review and enhance the security
  features of its products and work with customers to maintain and
  improve the security and integrity of their systems.

___________________________________________________________  
  Copyright (c) Compaq Computer Corporation, 1999 All
  Rights Reserved.
  Unpublished Rights Reserved Under The Copyright Laws Of
  The United States.
___________________________________________________________

Acknowledgments ---

Compaq wishes to thank Lamont Granquist and others for their
assistance in this matter.
 

[  End Compaq Computer Corp. Advisory  ]
______________________________________________________________________________

CIAC wishes to acknowledge the contributions of Compaq Computer Corporation 
for the information contained in this bulletin.
______________________________________________________________________________


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