SSRT3663 Rev.1 Apache HTTP Server mod_cgid, mod_alias, mod_rewrite
Security Alert
Hash: SHA1
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**REVISED 01**
Source: HEWLETT-PACKARD COMPANY
SECURITY BULLETIN: HPSBUX0311-301
Originally issued: 18 November 2003
Last revised: 19 November 2003
SSRT3663 Apache HTTP Server mod_cgid, mod_alias, mod_rewrite
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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.
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PROBLEM: 1. mod_cgid mishandling of CGI redirect paths could
result in CGI output going to the wrong client when a
threaded MPM is used.
More details are available at:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0789
2. A buffer overflow could occur in mod_alias and
mod_rewrite when a regular expression with more than
9 captures is configured.
More details are available at:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0542
IMPACT: Potential Denial of Service or execute arbitrary code.
PLATFORM: HP9000 Servers running HP-UX release B.11.00, B.11.11,
B.11.20, B.11.22, and B.11.23 with versions of the
following products are affected, and represented as:
product-name, version (product-tag/bundle-tag)
product-name, version (product-tag/bundle-tag)
- hp apache-based web server, 2.0.43.04
or earlier (HPApache/B9416AA)
This product includes Apache 2.0.43.
- hp-ux apache-based web server, v.1.0.09.01
or earlier (hpuxwsAPACHE/hpuxwsApache)
This product includes Apache 2.0.47.
- hp apache-based web server (with IPv6 support),
2.0.43.04 or earlier (HPApache/B9416BA)
This product includes Apache 2.0.43.
- hp-ux apache-based web server(with IPv6 support),
v.1.0.09.01 or earlier (hpuxwsAPACHE/hpuxwsApache)
This product includes Apache 2.0.47.
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
http://www.software.hp.com/:
For HPApache/B9416AA, HPApache/B9416BA and
hpuxwsAPACHE/hpuxwsApache download the following:
- hp-ux apache-based web server (with IPv4)
v.1.0.10.01 or later (hpuxwsAPACHE/hpuxwsApache)
This product includes Apache 2.0.48.
http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/
cgi/displayProductInfo.pl?productNumber=HPUXWSSUITE
- hp-ux apache-based web server(with IPv6 support),
v.1.0.10.01 or later (hpuxwsAPACHE/hpuxwsApache)
This product includes Apache 2.0.48.
http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/
cgi/displayProductInfo.pl?productNumber=HPUXWSSUITE
MANUAL ACTIONS: Yes - Non-Update
Install the product containing the fix.
For customers with HPApache/B9416AA
HPApache/B9416BA installed, the fix requires
migration to hpuxwsAPACHE/hpuxwsApache and
removing the affected products from the system.
AVAILABILITY: Complete product bundles are available now on
<http://www.software.hp.com/>
CHANGE SUMMARY: Rev. 01 Corrected typo in version number
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**REVISED 01**
A. Background
The Common Vulnerabilities and Exposures project
<http://cve.mitre.org/> has identified potential
vulnerabilities in the Apache HTTP Server (CAN-2003-0789, and
CAN-2003-0542). It affects the following HP product
numbers/versions on HP-UX releases B.11.00, B.11.11, B.11.20,
B.11.22, and B.11.23:
- hp apache-based web server, 2.0.43.04 or earlier
(HPApache/B9416AA)
- hp-ux apache-based web server, v.1.0.09.01 or earlier
(hpuxwsAPACHE/hpuxwsApache)
- hp apache-based web server, 2.0.43.04 (with IPv6 support)
or earlier (HPApache/B9416BA)
- hp-ux apache-based web server (with IPv6 support),
v.1.0.09.01 or earlier (hpuxwsAPACHE/hpuxwsApache)
AFFECTED VERSIONS
The following is a list 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.
HP-UX B.11.00
HP-UX B.11.11
HP-UX B.11.20
HP-UX B.11.22
HP-UX B.11.23
====================================
HPApache.APACHE2
hpuxwsAPACHE.APACHE2
--->> fix: install hp-ux apache-based web server, v.1.0.10.01
or later.
END AFFECTED VERSIONS
B. Recommended solution
The Apache Software Foundation has released Apache 2.0.48 as
the best known version that fixes the problems identified in
the above mentioned issues.
For customers using HPApache/B9416AA HPApache/B9416BA and
hpuxwsAPACHE/hpuxwsApache, HP has incorporated Apache 2.0.48
in the following product:
- hp-ux apache-based web server v.1.0.10.01 or later
http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/
displayProductInfo.pl?productNumber=HPUXWSSUITE
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
HPApache 2.0.39.01.02 HP Apache-based Web Server
hpuxwsAPACHE A.1.0.09.01 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 HPApache: /opt/hpapache2/bin/apachectl stop
for hpuxwsAPACHE: /opt/hpws/apache/bin/apachectl stop
Download and Install Apache
-----------------------------
- Download Apache from Software Depot using the previously
mentioned links.
- 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/B9416BA installed, migrate to
hpuxwsAPACHE/hpuxwsApache and remove the affected products
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 rather remove Apache from your system than install 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
hpapache2conf
hpws_apacheconf
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
at:
Use the 'Login' tab at the left side of the screen to login
using your ID and password. Use your existing login or the
"Register" button at the left to create a login, in order to
gain access to many areas of the ITRC. Remember to save the
User ID assigned to you, and your password.
In the left most frame select "Maintenance and Support".
Under the "Notifications" section (near the bottom of
the page), select "Support Information Digests".
To -subscribe- to future HP Security Bulletins or other
Technical Digests, click the check box (in the left column)
for the appropriate digest and then click the "Update
Subscriptions" button at the bottom of the page.
or
To -review- bulletins already released, select the link
(in the middle column) for the appropriate digest.
NOTE: Using your itrc account security bulletins can be
found here:
http://itrc.hp.com/cki/bin/doc.pl/screen=ckiSecurityBulletin
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:
http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/
displayProductInfo.pl?productNumber=B6834AA
The security patch matrix is also available via anonymous
ftp:
ftp://ftp.itrc.hp.com/export/patches/hp-ux_patch_matrix/
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:
2D2A7D59
HP Security Response Team (Security Bulletin signing only)
<securit...@hp.com>
Fingerprint =
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D. To report new security vulnerabilities, send email to
Please encrypt any exploit information using the
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of 'get key' (no quotes) to securit...@hp.com.
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(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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Yours truly,
HP S/W Security Team
WTEC Cupertino, California
Return-Path: sec...@cup.hp.com
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