SSRT3521 rev.2 HP-UX OpenSSL CBC timing attack in SSL and TLS

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**REVISED 03**
Originally issued: 17 March 2003
Last revised: 30 June 2004
SSRT3521 rev.2 HP-UX OpenSSL CBC timing attack in SSL and TLS
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:  A remotely exploitable potential vulnerability has been
          reported in CAN-2003-0078.

IMPACT: Potential information leak.

PLATFORM: HP-UX B.11.00, B.11.11, B.11.20, B.11.22, and B.11.23
          running the ApacheStrong, HPApache, or hpuxwsAPACHE
          HP-UX Apache-based Web Servers.

          HP-UX B.11.04 running Virtualvault 4.5 or
          Virtualvault 4.6.

SOLUTION: For HP-UX releases B.11.00, B.11.11, B.11.20, B.11.22,
          and B.11.23 download new HP Apache product from
          < .

          For HP-UX release B.11.04 install the appropriate

          PHSS_28685 - for Virtualvault A.04.50
          PHSS_28686 - for Virtualvault A.04.60

**REVISED 03**
                Install the product containing the fix.
                B.11.04 - No manual actions.

AVAILABILITY: Complete product bundles are available from
              < for non-VirtualVault
              For B.11.04, retrieve patches from <>.

CHANGE SUMMARY: Rev.1 added IPv6 information
                Rev.2 added VVOS OWS patch information
                Rev.3 added 11.23
                      Note: Several Apache security bulletins
                      are being revised to correct the affected
                      versions specification.


**REVISED 03**
A. Background
   The potential vulnerability has been reported here:


     Note: To determine if a system has an affected version,
           search the output of "swlist -a revision -l fileset"
           for an affected fileset.  Then determine if the
           recommended patch or update is installed.

      HP-UX B.11.00
      HP-UX B.11.11
      HP-UX B.11.20
      HP-UX B.11.22
      For B9415AA
 -->  action: install revision or subsequent

      For B9416AA (IPv4) and B9416BA (IPv6)
      action: remove (migrate to hpuxwsAPACHE)

      For IPv4:
      HP-UX B.11.00
      HP-UX B.11.11
      HP-UX B.11.22
 -->  action: install revision A. or subsequent

      For IPv6:
      HP-UX B.11.11
 -->  action: install revision B. or subsequent

 -->  HP-UX B.11.23
 -->  action: install revision B. or subsequent

      HP-UX B.11.04
      For Virtualvault A.04.50
 -->  action: install PHSS_28685 or subsequent

      For Virtualvault A.04.60
 -->  action: install PHSS_28686 or subsequent


B. Recommended solution
   The OpenSSL Group has released OpenSSL 0.9.6i as the best known
   version that fixes the problems identified in the above
   mentioned issues.

   Check for Apache Installation
   To determine if the Apache web server from HP is installed on
   your system, use Software Distributor's swlist command.  All
   three versions products may co-exist on a single system.

   For example, the results of the command
     swlist -l product | grep -i apache

     ApacheStrong     HP Apache-based Web Server
                                   with Strong (128bit) Encryption
     HPApache  HP Apache-based Web Server
     hpuxwsAPACHE  A.   HP-UX Apache-based Web Server

   Stop Apache
   Before updating, make sure to stop any previous Apache binary.
   Otherwise, the previous binary will continue running,
   preventing the new one from starting, although the installation
   would be successful.

   After determining which Apache is installed, stop Apache with
   the following commands:

     for ApacheStrong:    /opt/apache/bin/apachectl stop
     for HPApache:        /opt/hpapache2/bin/apachectl stop
     for hpuxwsAPACHE:    /opt/hpws/apache/bin/apachectl stop

   Download and Install Apache
   - Download Apache from Software Depot:
   - Verify successful download by comparing the cksum with the
     value specified on the installation web page.
   - Use SD to swinstall the depot.
   - For customers with HPApache installed, migrate to
     hpuxwsAPACHE and remove HPApache from the system.

   Installation of this new version of HP Apache over an existing
   HP Apache installation is supported, while installation over a
   non-HP Apache is NOT supported.

   Removing Apache Installation
   If you prefer to remove Apache from your system instead of
   installing a newer version to resolve the security problem,
   use both Software Distributor's "swremove" command and also
   "rm -rf" the home location as specified in the rc.config.d file
   "HOME" variables.

   To find the files containing HOME variables in the
   /etc/rc.config.d directory:

     %ls /etc/rc.config.d | grep apache

   NOTE:  For HP Apache 1.3.x, you must also manually remove the
          Tomcat directory.  Tomcat is under directory
          "/opt/tomcat" for HP Apache 1.3.x.

   For customers with HP-UX release B.11.04 (VVOS), stop Apache
   (as above), and install the patches listed above.

* The software product category that this Security Bulletin
 relates to is represented by the 5th and 6th characters of the
 Bulletin number: GN=General, MA=Management Agents, MI=Misc.
 3rd party, MP=HP-MPE/iX, NS=HP NonStop Servers, OV=HP OpenVMS,
 PI=HP Printing & Imaging, ST=HP Storage, TU=HP Tru64 UNIX,
 TL=Trusted Linux, UX=HP-UX, VV=Virtual Vault

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Version: PGP 8.0.2


Yours truly,
HP S/W Security Team
WTEC Cupertino, California


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