TUCoPS :: HP/UX :: ciacj017.txt

HP-UX Vacation Security Vulnerability

             __________________________________________________________

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

                             INFORMATION BULLETIN

                     HP-UX vacation Security Vulnerability

December 3, 1998 23:00 GMT                                       Number J-017
______________________________________________________________________________
PROBLEM:       Hewlett-Packard has identified a vulnerability in the vacation
               program. The program erroneously passes parameters to sendmail.
PLATFORM:      HP 9000 series 700/800 running HP-UX releases 9.x, 10.x, and
               11.0.
DAMAGE:        Remote users could modify system files.
SOLUTION:      Install patches listed below.
______________________________________________________________________________
VULNERABILITY  Risk is high. Hewlett-Packard does recommend installation of
ASSESSMENT:    patches as soon as possible.
______________________________________________________________________________

[  Revised December 3, 1998 with additional patch information  ]

[  Start Hewlett-Packard Advisory  ]

Document ID:  HPSBUX9811-087
Date Loaded:  19981130
      Title:  Security Vulnerability with vacation

-------------------------------------------------------------------------
**REVISED 01**
   HEWLETT-PACKARD COMPANY SECURITY BULLETIN: #00087, 16 November 1998
Last Revised: 30 November 1998
-------------------------------------------------------------------------

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: The vacation program erroneously passes parameters to sendmail.

PLATFORM: HP 9000 series 700/800 running HP-UX releases 9.X, 10.X
          and 11.0.

DAMAGE:  Remote users could modify system files.

SOLUTION: **REVISED 01**
           Install the patches listed below.

AVAILABILITY:  All patches are available now.
CHANGE SUMMARY: This revision includes HP-UX 10.24 patches.
-------------------------------------------------------------------------
I.
   A. Background
      The vacation program shipped with HP-UX in /usr/bin/vacation
      suffers from a fault in that it misunderstands it's inputs and
      invokes sendmail with the wrong parameters.  Both sendmail 5.65
      and 8.7.6 are vulnerable to this malady.  Also the vacation
      program ignores a TO: header when the "O" is upper case.

   B. Fixing the problem
**REVISED 01**
      Install the applicable patch:

       HP-UX revision 11.X for HP9000 Series 7/800:       PHNE_16295
---->>>HP-UX revision 10.24 for HP9000 Series 7/800:      PHNE_16955
       HP-UX revision 10.20 for HP9000 Series 7/800:      PHNE_14042
       HP-UX revision 10.0X-10 for HP9000 Series 7/800:   PHNE_16726
       HP-UX revision 9.X  for HP9000 Series 7/800:       PHNE_16725

   C. To subscribe to automatically receive future NEW HP Security
      Bulletins from the HP Electronic Support Center via electronic
      mail, do the following:

      Use your browser to get to the HP Electronic Support Center page
      at:

        http://us-support.external.hp.com
               (for US, Canada, Asia-Pacific, & Latin-America)
        http://europe-support.external.hp.com     (for Europe)

      Login with your user ID and password (or register for one).
      Remember to save the User ID assigned to you, and your password.
      Once you are in the Main Menu:
      To -subscribe- to future HP Security Bulletins,
        click on "Support Information Digests".
      To -review- bulletins already released from the main Menu,
        click on the "Search Technical Knowledge Database."

      Near the bottom of the next page, click on "Browse the HP
      Security Bulletin Archive".
      Once in the archive there is another link 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 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.
________________________________________________________________________

- -----End of Document ID:  HPSBUX9811-087--------------------------------------


[  End Hewlett-Packard Advisory  ]
______________________________________________________________________________

CIAC wishes to acknowledge the contributions of Hewlett-Packard  or the
information contained in this bulletin.
______________________________________________________________________________


CIAC, the Computer Incident Advisory Capability, is the computer
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