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SUPPORT COMMUNICATION - SECURITY BULLETIN

Document ID: c00760969

Version: 1

HPSBUX02145 SSRT061202 rev.1 - HP-UX running Apache Remote Execution of Arbitrary Code, 
Denial of Service (DoS), and Unauthorized Access

NOTICE: The information in this Security Bulletin should be acted upon as soon as possible.

Release Date: 2006-08-25
Last Updated: 2006-08-28

Potential Security Impact: Remote execution of arbitrary code, Denial of Service (DoS), 
and unauthorized access.

Source: Hewlett-Packard Company, HP Software Security Response Team

VULNERABILITY SUMMARY
Potential security vulnerabilities have been identified with Apache running on HP-UX. 
These vulnerabilities could be exploited remotely to allow execution of arbitrary code, 
Denial of Service (DoS), or unauthorized access.

References: CVE-2006-3747, CVE-2005-3352, CVE-2005-3357

SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.
HP-UX B.11.00, B.11.11, B.11.23 running Apache-based Web Server prior to v.2.0.58.

BACKGROUND

The following potential security vulnerabilities are resolved in the 
software update listed below:

CVE-2006-3747 (cve.mitre.org): Off-by-one error in the ldap scheme handling.
CVE-2005-3352 (cve.mitre.org): mod_ssl NULL pointer dereference.
CVE-2005-3357 (cve.mitre.org): Remote arbitrary code execution.

AFFECTED VERSIONS

For IPv4:
HP-UX B.11.00
HP-UX B.11.11
===========
hpuxwsAPACHE
action: install revision A.2.0.58.00 or subsequent
action: restart Apache

For IPv6:
HP-UX B.11.11
===========
hpuxwsAPACHE,revision=B.1.0.00.01
hpuxwsAPACHE,revision=B.1.0.07.01
hpuxwsAPACHE,revision=B.1.0.08.01
hpuxwsAPACHE,revision=B.1.0.09.01
hpuxwsAPACHE,revision=B.1.0.10.01
hpuxwsAPACHE,revision=B.2.0.48.00
hpuxwsAPACHE,revision=B.2.0.49.00
hpuxwsAPACHE,revision=B.2.0.50.00
hpuxwsAPACHE,revision=B.2.0.51.00
hpuxwsAPACHE,revision=B.2.0.52.00
hpuxwsAPACHE,revision=B.2.0.53.00
hpuxwsAPACHE,revision=B.2.0.54.00
hpuxwsAPACHE,revision=B.2.0.55.00
action: install revision B.2.0.58.00 or subsequent
action: restart Apache

HP-UX B.11.23
===========
hpuxwsAPACHE
action: install revision B.2.0.58.00 or subsequent
action: restart Apache

END AFFECTED VERSIONS

RESOLUTION

HP has made the following patches and software updates available to resolve the issue.

Software updates for the Apache-based Web Server are available from:

http://h20293.www2.hp.com/cgi-bin/swdepot_parser.cgi/cgi/
displayProductInfo.pl?productNumber=HPUXWSSUITE

HP-UX B.11.00, B.11.11 and HP-UX B.11.23 require the Apache-based Web Server 
v.2.0.58.00 or subsequent.

Apache Update Procedure

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 revisions of the product 
may co-exist on a single system.
For example, the results of the command
swlist -l product | grep -i apache
hpuxwsAPACHE B.2.0.55.00 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 hpuxwsAPACHE: /opt/hpws/apache[32]/bin/apachectl stop

Download and Install Apache
- ---------------------------
Download Apache from Software Depot:

http://h20293.www2.hp.com/cgi-bin/swdepot_parser.cgi/cgi/
displayProductInfo.pl?productNumber=HPUXWSSUITE

Verify successful download by comparing the cksum with the value 
specified on the installation web page.

Use SD to swinstall the depot.
Installation of this new revision 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 revision 
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.
%ls /etc/rc.config.d | \ grep apache hpapache2conf hpws_apache[32]conf

MANUAL ACTIONS: Yes - Update plus other actions
Install the revision of the product.

PRODUCT SPECIFIC INFORMATION
HP-UX Security Patch Check: Security Patch Check revision B.02.00 analyzes all 
HP-issued Security Bulletins to provide a subset of recommended actions that potentially 
affect a specific HP-UX system. For more information: http://software.hp.com/portal/swdepot/displayProductInfo.do?productNumber=B6834AA

HISTORY: rev.1 - 28 August 2006 Initial Release

Support: For further information, contact normal HP Services
support channel.

Report: To report a potential security vulnerability with any HP
supported product, send Email to: security-alert@hp.com.  It is
strongly recommended that security related information being
communicated to HP be encrypted using PGP, especially exploit
information.  To get the security-alert PGP key, please send an
e-mail message as follows:
  To: security-alert@hp.com
  Subject: get key

Subscribe: To initiate a subscription to receive future HP
Security Bulletins via Email:
http://h30046.www3.hp.com/driverAlertProfile.php?regioncode=NA&
langcode=USENG&jumpid=in_SC-GEN__driverITRC&topiccode=ITRC

On the web page: ITRC security bulletins and patch sign-up
Under Step1: your ITRC security bulletins and patches
  - check ALL categories for which alerts are required and
    continue.
Under Step2: your ITRC operating systems
  - verify your operating system selections are checked and
    save.

To update an existing subscription:
http://h30046.www3.hp.com/subSignIn.php
Log in on the web page:
  Subscriber's choice for Business: sign-in.
On the web page:
  Subscriber's Choice: your profile summary
    - use Edit Profile to update appropriate sections.

To review previously published Security Bulletins visit:
http://www.itrc.hp.com/service/cki/secBullArchive.do

* The Software Product Category that this Security Bulletin
relates to is represented by the 5th and 6th characters of the
Bulletin number in the title:

    GN = HP General SW,
    MA = HP Management Agents,
    MI = Misc. 3rd party SW,
    MP = HP MPE/iX,
    NS = HP NonStop Servers,
    OV = HP OpenVMS,
    PI = HP Printing & Imaging,
    ST = HP Storage SW,
    TL = HP Trusted Linux,
    TU = HP Tru64 UNIX,
    UX = HP-UX,
    VV = HP Virtual Vault


System management and security procedures must be reviewed
frequently to maintain system integrity. HP is continually
reviewing and enhancing the security features of software products
to provide customers with current secure solutions.

"HP is broadly distributing this Security Bulletin in order to
bring to the attention of users of the affected HP products the
important security information contained in this Bulletin. HP
recommends that all users determine the applicability of this
information to their individual situations and take appropriate
action. HP does not warrant that this information is necessarily
accurate or complete for all user situations and, consequently, HP
will not be responsible for any damages resulting from user's use
or disregard of the information provided in this Bulletin. To the
extent permitted by law, HP disclaims all warranties, either
express or implied, including the warranties of merchantability
and fitness for a particular purpose, title and non-infringement."


(c)Copyright 2006 Hewlett-Packard Development Company, L.P.
Hewlett-Packard Company shall not be liable for technical or
editorial errors or omissions contained herein. The information
provided is provided "as is" without warranty of any kind. To the
extent permitted by law, neither HP nor its affiliates,
subcontractors or suppliers will be liable for incidental, special
or consequential damages including downtime cost; lost profits;
damages relating to the procurement of substitute products or
services; or damages for loss of data, or software restoration.
The information in this document is subject to change without
notice. Hewlett-Packard Company and the names of Hewlett-Packard
products referenced herein are trademarks of Hewlett-Packard
Company in the United States and other countries. Other product
and company names mentioned herein may be trademarks of their
respective owners.
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