AUSCERT External Security Bulletin Redistribution

            SSRT3622 Security Bulletin rev.1 - HP-UX AAA Server
                              24 October 2003


        AusCERT Security Bulletin Summary

Product:                HP-UX AAA Server
Publisher:              Hewlett-Packard
Operating System:       HP-UX B.11.11
                        HP-UX B.11.00
Platform:               HP9000
Impact:                 Denial of Service
Access Required:        Remote
CVE Names:              CAN-2003-0543 CAN-2003-0544 CAN-2003-0545

Ref:                    AL-2003.18

Comment:                NB: revisions to SOLUTION sections

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Hash: SHA1

**REVISED 01**
Originally issued: 07 Oct 2003
Last revised:  22 Oct 2003
SSRT3622 Security Bulletin rev.1 - HP-UX AAA Server
NOTICE: There are no restrictions for distribution of this
        Bulletin provided that it remains complete and intact.

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: 1. Certain ASN.1 encodings that are rejected as invalid
            by the parser can trigger a bug in the deallocation
            of the corresponding data structure, corrupting the
            stack.  This can be used as a denial of service
            attack.  It is currently unknown whether this can be
            exploited to run malicious code. This issue does not
            affect OpenSSL 0.9.6.

            More details are available at:

         2. Unusual ASN.1 tag values can cause an out of bounds
            read under certain circumstances, resulting in a
            denial of service vulnerability.
            More details are available at:

         3. A malformed public key in a certificate will crash
            the verify code if it is set to ignore public key
            decoding errors.  Exploitation of an affected
            application would result in a denial of service

         4. Due to an error in the SSL/TLS protocol handling,
            a server will parse a client certificate when one is
            not specifically requested.

IMPACT:   Potential Denial of Service

PLATFORM: HP9000 Servers running HP-UX release B.11.00, B.11.11
          with HP-UX AAA Server, A.06.01.02 or earlier,
          This product included OpenSSL 0.9.7b.

**REVISED 01**
SOLUTION: For HP-UX releases B.11.00, B.11.11, download new
          HP-UX AAA Server product from <software.hp.com>

          For AAAServer/T1428AA download the following:

          - HP-UX AAA Server
            A. or later (AAAServer)
            This product includes OpenSSL 0.9.7b + patches.

            Install the product containing the fix.
            Remove AAAServer (T1428AA) and migrate to
            HP-UX AAA Server A. or later.

AVAILABILITY: Complete product bundles are available from

CHANGE SUMMARY:  Rev. 1 - product bundles are available from
                          ftp site has been removed.

A. Background
   An SSL/TLS testing suite developed by the NISCC (National
   Infrastructure Security Co-Ordination Centre in the UK) has
   identified ASN.1 parsing vulnerabilities in OpenSSL.

   The HP-UX AAA Server (T1428AA) is affected by latest OpenSSL


     The following is a list by HP-UX revision of
     affected filesets or patches and fix information.
     To determine if a system has an affected version,
     search the output of "swlist -a revision -l fileset"
     for an affected fileset or patch, then determine if
     a fixed revision or applicable patch is installed.

     The affected filesets are: (product.fileset)
     HP-UX B.11.00
     HP-UX B.11.11
     fix: install revision A. or subsequent


**REVISED 01**
B. Recommended solution
    For customers using the HP-UX AAA Server (T1428AA)
 --> revision A.06.01.02 and earlier, download the depot from

    To fix the problem:

    1. Determine the affected version.
    2. Remove HP-UX AAA Server (T1428AA)
    3. Install the appropriate HP-UX AAA Server depot.

    The fix requires removing AAAServer (T1428AA) from
    the system and migrating to HP-UX AAA Server
    A. or later.

 --> NOTE: Even if you recently installed the depot from the
 -->       ftp site, product users should overwrite the
 -->       previous downloads of this version A.
 -->       with the latest one from software.hp.com.   There
 -->       are changes in the pre- and post-install control and
 -->       SD scripts.
 -->       It is not necessary to remove the installed version.

   Check for AAA Installation
   To determine if the HP-UX AAA Server is installed on
   your system, use Software Distributor's swlist command.

   For example, the results of the command
     swlist -l product | grep -i AAA     might show:

   AAAServer  A.06.01.02    AAA Server

   Stop HP-UX AAA Server
   Before updating, make sure to stop any previous HP-UX AAA
   Server binary.  Otherwise, the previous binary will continue
   running, preventing the new one from starting, although the
   installation may be successful.

   After determining which HP-UX AAA Server is installed, stop
   the process with the following command:

    kill `cat /var/opt/aaa/run/radiusd.pid | awk '{print $1}'`

    Stop any active tomcat processes using the following command:


**REVISED 01**
   Download and Install HP-UX AAA Server
 --> - Download HP-UX AAA Server depot file from software.hp.com.
 --> - Register the depot using "swreg" and install using the
 -->   "swinstall" SD commands.
     - Remove AAAServer (T1428AA) and migrate to
       HP-UX AAA Server A. or later.

    Installation of this new version of HP-UX AAA Server
    over an existing HP-UX AAA Server installation is supported,
    while installation over any non-HP AAA Server is NOT

   Removing an HP-UX AAA Server Installation
   If you rather remove HP-UX AAA Server from your system than
   install a newer version to resolve the security problem, use
   both Software Distributor's "swremove" command.

   Note: Before executing swremove, stop HP-UX AAA Server and
   the active tomcat processes.

   Remove the HP-UX AAA Server using SD command: swremove T1428AA

C. 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


   Use the 'Login' tab at the left side of the screen to login
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   "Register" button at the left to create a login, in order to
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   In the left most frame select "Maintenance and Support".

   Under the "Notifications" section (near the bottom of
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   To -subscribe- to future HP Security Bulletins or other
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   To -review- bulletins already released, select the link
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   NOTE: Using your itrc account security bulletins can be
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   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.  Security Patch Check completely
   automates the process of reviewing the patch matrix for
   11.XX systems.  Please note that installing the patches
   listed in the Security Patch Matrix will completely
   implement a security bulletin _only_ if the MANUAL ACTIONS
   field specifies "No."

   The Security Patch Check tool can verify that a security
   bulletin has been implemented on HP-UX 11.XX systems providing
   that the fix is completely implemented in a patch with no
   manual actions required.  The Security Patch Check tool cannot
   verify fixes implemented via a product upgrade.

   For information on the Security Patch Check tool, see:

   The security patch matrix is also available via anonymous


   On the "Support Information Digest Main" page:
   click on the "HP Security Bulletin Archive".

   The PGP key used to sign this bulletin is available from
   several PGP Public Key servers.  The key identification
   information is:

      HP Security Response Team (Security Bulletin signing only)
      Fingerprint =
        6002 6019 BFC1 BC62 F079 862E E01F 3AFC 2D2A 7D59

   If you have problems locating the key please write to
   security-alert@hp.com.  Please note that this key is
   for signing bulletins only and is not the key returned
   by sending 'get key' to security-alert@hp.com.

D. To report new security vulnerabilities, send email to


   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.


(c)Copyright 2003 Hewlett-Packard Company
Hewlett-Packard Company shall not be liable for technical or
editorial errors or omissions contained herein. The information
in this document is subject to change without notice.
Hewlett-Packard Company and the names of HP products referenced
herein are trademarks and/or service marks of Hewlett-Packard
Company.  Other product and company names mentioned herein may be
trademarks and/or service marks of their respective owners.

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Version: PGP 8.0


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