SSRT4717 rev.2 WBEM Services Remote Denial of Service (DoS)

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Date: Thu, 23 Jun 2005 15:53:03 GMT

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HP SECURITY BULLETIN

HPSBMA01037 REVISION: 2

SSRT4717 rev.2 WBEM Services Remote Denial of Service (DoS)

NOTICE:
There are no restrictions for distribution of this Security
Bulletin provided that it remains complete and intact.

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

INITIAL RELEASE:
22 June 2005

POTENTIAL SECURITY IMPACT:
Remote Denial of Service (DoS)

SOURCE:
Hewlett-Packard Company
HP Software Security Response Team

VULNERABILITY SUMMARY:
A potential security vulnerability has been identified with WBEM
Services on HP-UX and RedHat Enterprise Linux (RHEL) using OpenSSL
and SSL/TLS where the vulnerability could be exploited remotely to
create a Denial of Service (DoS).

REFERENCES:
CAN 2004-079, CAN-2004-0112

SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.
HP9000 Servers running HP-UX release B.11.00, B.11.11 and B.11.23
with versions of the following products are affected:

 - HP WBEM Services for HP-UX, A.01.05.08 or earlier (B8465BA).
   Version A.01.05.08 of this product includes OpenSSL 0.9.6k.

 - HP WBEM Services for HP-UX, A.02.00.00 (B8465BA). This product
   includes OpenSSL 0.9.6k.

RedHat Enterprise Linux, RHEL AS 2.1 with the following HP product
numbers/versions are affected:

  - HP WBEM Services for Linux, A.02.00.01

BACKGROUND:

The Common Vulnerabilities and Exposures project
<http://cve.mitre.org> has identified potential vulnerabilities in
OpenSSL (CAN-2004-079, CAN-2004-0112).

1. The do_change_cipher_spec function in OpenSSL allows remote
   attackers to cause a denial of service via a crafted SSL/TLS
   handshake that triggers a null dereference.
   <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0079>

2. The SSL/TLS handshaking, when using Kerberos ciphersuites, does
   not properly check the length of Kerberos tickets during a
   handshake, which allows remote attackers to cause a denial of
   service via a crafted SSL/TLS handshake that causes an
   out-of-bounds read.
   <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0112>

The following HP product numbers/versions are afected on HP-UX
releases B.11.00, B.11.11, and B.11.23:

 - HP WBEM Services for HP-UX, A.01.05.08 or earlier (B8465BA)

 - HP WBEM Services for HP-UX, A.02.00.00 (B8465BA)

The following HP product numbers/versions are affected on
RHEL AS 2.1:

 - HP WBEM Services for Linux, A.02.00.01

AFFECTED VERSIONS

Note: 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.

    HP-UX B.11.00
    ============
    WBEMServices.WBEM-CORE
    action: install revision A.01.05.09 or subsequent

    HP-UX B.11.11
    HP-UX B.11.23
    ============
    WBEMServices.WBEM-CORE
    action: install revision A.02.00.02 or subsequent

END AFFECTED VERSIONS

On Linux, to determine if a system has an affected
version, search the output of "rpm -qa | grep wbem"
for an affected fileset or patch, then determine if a
fixed revision or applicable patch is installed.

hp.com-wbem-2.0.1-rhas2_1

RESOLUTION:

The OpenSSL group has released patches to fix the vulnerabilities
in OpenSSL 0.9.7d. For customers using HP WBEM Services, HP has
incorporated OpenSSL 0.9.7d in the following product:

 -> - HP WBEM Services for HP-UX B.11.00, A.01.05.09
or subsequent,

 -> - HP WBEM Services for HP-UX for B.11.11, and B.11.23,
A.02.00.02 or subsequent,

 - HP WBEM Services for Linux, A.02.00.02 or subsequent.

==================================================

To fix the problem:

1. Determine the affected version.

 -> 2. Download and verify the md5 sum from the Electronic
       Delivery Receipt for HP-UX:
<http://h20293.www2.hp.com/portal/swdepot/displayProductInfo.do?
productNumber=B8465BA>

3. Install the appropriate HP WBEM Services depot.

 -> 4. Download and verify the md5 sum from the Electronic
       Delivery Receipt for Linux:
<http://h20293.www2.hp.com/portal/swdepot/displayProductInfo.do?
productNumber=T2347BA>

Check for HP WBEM Services Installation
=======================================

To determine if HP WBEM Services is installed on your system, on
HP-UX, use the Software Distributor's swlist command.

For example, the results of the command

swlist -l product | grep -i WBEM

WBEMServices A.01.05.08 WBEM Services CORE Product

For full information about system requirements and installing
HP WBEM Services, refer to the HP WBEM Services Release Notes.

Installation Steps
==================

for HP WBEM Services for HP-UX
==============================

 - Download the depot for HP WBEM Services from the site above.

 - To update to the new version, login as root and use the
   swinstall command to install the product.

for HP WBEM Services for Linux
==============================

 - Download the rpm for HP WBEM Services from the site above.

 - To update to the new version, login as root and use the rpm
   command to install the product:

rpm -ih

Removing Installation of HP WBEM Services for HP-UX
===================================================

Although not recommended, HP WBEM Services can be removed from
your system using the Software Distributor's "swremove" command.
Removing HP WBEM Services can seriously affect the functionality
of dependent products.

HP WBEM Services for Linux
==========================

On Linux, to determine if a system has an affected version, search
the output of "rpm -qa | grep wbem" for an affected fileset or
patch, then determine if a fixed revision or applicable patch is
installed.

hp.com-wbem-2.0.1-rhas2_1

MANUAL ACTIONS: Yes - Update
Install the appropriate new version.

BULLETIN REVISION HISTORY:
Rev. 0 24 May 2004
   - Initial Release
Rev. 1 27 May 2004
   - Fixed typographical errors.
Rev. 2 22 June 2005
   - Updated location for download of product.

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 obtain the security-alert PGP key please send an
e-mail message to security-alert@hp.com with the Subject of
'get key' (no quotes).

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 IRTC security bulletins and patches
     - check ALL categories for which alerts are required and
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To update an existing subscription:
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Log in on the web page
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   - use Edit Profile to update appropriate sections.

To review previously published Security Bulletins visit:
http://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:
    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 2005 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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--
Yours truly,
HP S/W Security Team
WTEC Cupertino, California
Return-Path: secure@cup.hp.com
Reply-to: security-alert@hp.com

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