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TUCoPS :: HP/UX :: ciacl093.txt

CIAC L-093 HP-UX kmmodreg Vulnerability




             __________________________________________________________

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

                             INFORMATION BULLETIN

                          HP-UX kmmodreg Vulnerability
               [Hewlett-Packard Company Security Bulletin #0153]

June 12, 2001 17:00 GMT                                           Number L-093
______________________________________________________________________________
PROBLEM:       The /usr/sbin/kmmodreg command inappropriately handles files. 
PLATFORM:      HP9000 series 700/800 running HP-UX releases 11.XX only 
DAMAGE:        Potential privilege escalation or denial of service 
SOLUTION:      Apply appropriate patch as indicated below 
______________________________________________________________________________
VULNERABILITY  The risk is MEDIUM: The command is executed automatically at 
ASSESSMENT:    every system reboot. 
______________________________________________________________________________

[******  Start Hewlett-Packard Bulletin ******]

-------------------------------------------------------------------------
    HEWLETT-PACKARD COMPANY SECURITY BULLETIN: #0153, 11 June '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:  The kmmodreg(1M) inappropriately handles files.

PLATFORM: HP9000 Series 700/800 running HP-UX releases 11.XX only.

DAMAGE:   Potential increase in privilege.

SOLUTION: Install the appropriate patch for the HP-UX release:
             11.11                          PHCO_24147,
             11.04                          PHCO_24197,
             11.00                          PHCO_24112.


AVAILABILITY:  The patches are available now.
-------------------------------------------------------------------------
I.    Background
      Hewlett-Packard Company has discovered that the /usr/sbin/kmmodreg
      command incorrectly performs its functions, causing a serious
      potential for a denial of service attack or an increase of
      privilege.
      This command is executed automatically at every system reboot.

II.   Recommended solution
      Application of the appropriate patch selected from the list below
      completely solves this problem.

      For HP-UX releases:
                 11.11                          PHCO_24147,
                 11.04                          PHCO_24197,
                 11.00                          PHCO_24112.

III.   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 "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 "The Security Bulletins Archive".  (near the
      bottom of the page)  Once in the archive the third link is
      to the current Security Patch Matrix. Updated daily, this
      matrix categorizes security patches by platform/OS release,
      and by bulletin topic.  Us our free Security Patch Check
      to completely automate the process of reviewing the patch
      matrix for 11.XX systems.

      For information on the Security Patch Check tool, see:
       http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/
              displayProductInfo.pl?productNumber=B6834AA

      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".

IV.    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 Hewlett-Packard Bulletin ******]
________________________________________________________________________
_______________________________________________________________________________

CIAC wishes to acknowledge the contributions of Hewlett-Packard Company for the 
information contained in this bulletin.
_______________________________________________________________________________


CIAC, the Computer Incident Advisory Center, is the computer
security incident response team for the U.S. Department of Energy
(DOE) and the emergency backup response team for the National
Institutes of Health (NIH). CIAC is located at the Lawrence Livermore
National Laboratory in Livermore, California. CIAC is also a founding
member of FIRST, the Forum of Incident Response and Security Teams, a
global organization established to foster cooperation and coordination
among computer security teams worldwide.

CIAC services are available to DOE, DOE contractors, and the NIH. CIAC
can be contacted at:
    Voice:    +1 925-422-8193 (7x24)
    FAX:      +1 925-423-8002
    STU-III:  +1 925-423-2604
    E-mail:   ciac@ciac.org

Previous CIAC notices, anti-virus software, and other information are
available from the CIAC Computer Security Archive.

   World Wide Web:      http://www.ciac.org/
   Anonymous FTP:       ftp.ciac.org

PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing
communities receive CIAC bulletins.  If you are not part of these
communities, please contact your agency's response team to report
incidents. Your agency's team will coordinate with CIAC. The Forum of
Incident Response and Security Teams (FIRST) is a world-wide
organization. A list of FIRST member organizations and their
constituencies can be obtained via WWW at http://www.first.org/.

This document was prepared as an account of work sponsored by an
agency of the United States Government. Neither the United States
Government nor the University of California nor any of their
employees, makes any warranty, express or implied, or assumes any
legal liability or responsibility for the accuracy, completeness, or
usefulness of any information, apparatus, product, or process
disclosed, or represents that its use would not infringe privately
owned rights. Reference herein to any specific commercial products,
process, or service by trade name, trademark, manufacturer, or
otherwise, does not necessarily constitute or imply its endorsement,
recommendation or favoring by the United States Government or the
University of California. The views and opinions of authors expressed
herein do not necessarily state or reflect those of the United States
Government or the University of California, and shall not be used for
advertising or product endorsement purposes.

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