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             AUSCERT External Security Bulletin Redistribution

       ESB-2001.239 -- HP Support Information Digests HPSBUX0106-153
                  Security Vulnerability in kmmodreg(1M)
                               19 June 2001

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:                kmmodreg(1M)
Vendor:                 Hewlett-Packard
Operating System:       HP-UX 11.11
                        HP-UX 11.04
                        HP-UX 11.00
Platform:               HP9000 Series 700
                        HP9000 Series 800
Impact:                 Increased Privileges
                        Denial of Service

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Document ID:  HPSBUX0106-153
Date Loaded:  20010611
      Title:  Security Vulnerability in kmmodreg(1M)

- -------------------------------------------------------------------------
    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:   Pontential 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 of Document ID:  HPSBUX0106-153--------------------------------------

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