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AUSCERT External Security Bulletin Redistribution
ESB-2005.0602 -- HP Security Bulletin HPSBUX01123
SSRT5931 rev.1 Apache on HP-UX Remote Denial of Service and
client restriction bypass
2 August 2005
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Apache
Publisher: Hewlett-Packard
Operating System: HP-UX
Impact: Inappropriate Access
Denial of Service
Access: Remote/Unauthenticated
CVE Names: CAN-2004-0942 CAN-2004-0885
Ref: ESB-2004.0724
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HP SECURITY BULLETIN
HPSBUX01123 REVISION: 1
SSRT5931 rev.1 Apache on HP-UX Remote Denial of Service and client
restriction bypass
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:
31 July 2005
POTENTIAL SECURITY IMPACT:
Remote Denial of Service (DoS) and bypass of SSLCipherSuite
settings.
SOURCE:
Hewlett-Packard Company
HP Software Security Response Team
VULNERABILITY SUMMARY:
A potential security vulnerability has been identified with Apache
running on HP-UX where the vulnerability could be exploited
remotely to create a Denial of Service (DoS) or to bypass
SSLCipherSuite restrictions.
REFERENCES:
CAN-2004-0942, CAN-2004-0885
SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.
HP-UX B.11.00, B.11.11, B.11.22, and B.11.23 running the
hpuxwsAPACHE HP-UX Apache-based Web Server.
-> HP-UX B.11.04 with Virtualvault 4.7 running
-> Apache 2.x Web Server.
BACKGROUND:
Two potential security vulnerabilities have been identified in
Apache Web Server. The Common Vulnerabilities and Exposures
project <http://cve.mitre.org/> has referenced them as the
following
CAN-2004-0942 and CAN-2004-0885.
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. Then determine if the
recommended patch or update is installed.
For IPv4:
HP-UX B.11.00
HP-UX B.11.11
=============
hpuxwsAPACHE
action: install revision A.2.0.53.00 or subsequent
-> HP-UX B.11.04
-> =============
-> Virtualvault A.04.70 (Apache 2.x)
-> VaultWS.WS-CORE
-> action: install PHSS_33075 or subsequent
HP-UX B.11.22
=============
hpuxwsAPACHE
action: migrate to B.11.23
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
action: install revision B.2.0.53.00 or subsequent
HP-UX B.11.23
=============
hpuxwsAPACHE
action: install revision B.2.0.53.00 or subsequent
END AFFECTED VERSIONS
RESOLUTION:
HP has made the following available to resolve the issue:
HP-UX B.11.00 - Apache revision A.2.0.53.00 or subsequent
- - ->HP-UX B.11.04 - VirtualVault 4.7 OWS PHSS_33075 or subsequent
HP-UX B.11.11 (IPv4) - Apache revision A.2.0.53.00 or subsequent
HP-UX B.11.11 (IPv6) - Apache revision B.2.0.53.00 or subsequent
HP-UX B.11.22 - Upgrade to HP-UX B.11.23
HP-UX B.11.23 - Apache revision B.2.0.53.00 or subsequent
NOTE: Support ended for HP-UX Web Server Suite for HP-UX 11i v1.6
(B.11.22) after March 31, 2004. HP-UX Web Server Suite for
HP-UX 11i v1.6 (B.11.22) is no longer available or
supported.
Users of HP-UX Web Server Suite on HP-UX 11i v1.6 are
encouraged to update to HP-UX 11i v2 (B.11.23) and install
the latest HP-UX Web Server Suite for HP-UX 11i v2.
Please write to security-alert@hp.com for more information.
- - ->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
versions products may co-exist on a single system.
For example, the results of the command
swlist -l product | grep -i apache
hpuxwsAPACHE B.2.0.52.00 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://software.hp.com/portal/swdepot/displayProductInfo.do?
productNumber=HPUXWSATW211>
- - - 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 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.
%ls /etc/rc.config.d | grep apache
hpapache2conf
hpws_apache[32]conf
MANUAL ACTIONS: Yes - NonUpdate
Install the product containing the fix.
HP-UX B.11.22 requires upgrading to HP-UX B.11.23.
BULLETIN REVISION HISTORY:
Revision 0 14 March 2005
Initial release
Revision 1 28 July 2005
Updated for HP-UX B.11.04
HP-UX SPECIFIC SECURITY BULLETINS*: 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://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/
displayProductInfo.pl?productNumber=B6834AA
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
continue.
Under Step2: your IRTC 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://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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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
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