AUSCERT External Security Bulletin Redistribution
             ESB-2000.086 -- HP SECURITY BULLETIN HPSBUX0005-113
                  Sec. Vulnerability with shutdown command
                                 05 May 2000


        AusCERT Security Bulletin Summary

Product:                shutdown
Vendor:                 Hewlett-Packard
Operating System:       HP-UX release 10.x
			HP-UX release 11.x

Platform:               HP-9000 Series 700/800

Impact:                 Increased Privileges
Access Required:        Local

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Document ID:  HPSBUX0005-113
Date Loaded:  20000503
      Title:  Sec. Vulnerability with shutdown command

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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.

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PROBLEM:  shutdown(1M) improperly handles input variables.

PLATFORM: HP-9000 Series700/800 running HP-UX releases 11.X and 10.X.

DAMAGE:   Increase of privileges.

SOLUTION: Apply the appropriate patches noted below.

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   A. Background
      The shutdown command did not properly handle its inputs.

   B. Fixing the problem
      This problem can be eliminated by installing the following patch,
      which now allows the command to function properly.

      For HP-UX release 11.00, obtain and apply PHCO_21534;
      for HP-UX release 10.20 and 10.10, obtain and apply PHCO_21574.

      For HP-UX VirtualVault (VVOS) release 11.04, use PHCO_21567;
      for HP-UX VirtualVault (VVOS) release 10.24, use PHCO_21566.

      Note: No system reboot will be required.

   C. To subscribe to automatically receive future NEW HP Security
      Bulletins from the HP IT Resource Center via electronic mail,
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   D. To report new security vulnerabilities, send email to

      Please encrypt any exploit information using the security-alert
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      Permission is granted for copying and circulating this Bulletin to
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- -----End of Document ID:  HPSBUX0005-113--------------------------------------

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