__________________________________________________________
The U.S. Department of Energy
Computer Incident Advisory Capability
___ __ __ _ ___
/ | /_\ /
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__________________________________________________________
INFORMATION BULLETIN
Vulnerabilities in Tomcat 3.3.1
[HPSBUX0303-249]
March 20, 2003 13:00 GMT Number N-060
______________________________________________________________________________
PROBLEM: Two potential vulnerabilities have been identified in Tomcat
3.3.1. When used with Java Development Kit (JDK) 1.3.1 or
earlier, an attacker could possibly read files or obtain
unprocessed source code. With Cross-site scripting (XSS) a
remote attacker could potentially execute arbitrary web script.
PLATFORM: HP9000 Servers running HP-UX release 11.00, 11.11, 11.20, and
11.22
hp apache-based web server, 1.3.27.00 or earlier
hp apache-based web server, 2.0.43.00 or earlier
DAMAGE: If exploited, these vulnerabilities could allow an attacker to
read files on the system or potentially execute arbitrary web
scripts.
SOLUTION: Install updated product bundles or apply workarounds.
______________________________________________________________________________
VULNERABILITY The risk is MEDIUM. It is recommended that the information in
ASSESSMENT: this bulletin be acted upon as soon as possible.
______________________________________________________________________________
LINKS:
CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/n-060.shtml
______________________________________________________________________________
[***** Start HPSBUX0303-249 *****]
Document ID: HPSBUX0303-249
Date Loaded: 20030317
Title: SSRT 3522 Sec. Vulnerability in Tomcat 3.3.1/Description>
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Source: HEWLETT-PACKARD COMPANY
SECURITY BULLETIN: HPSBUX0303-249
Originally issued: 17 March 2003
SSRT3522 Sec. Vulnerabilities in Tomcat 3.3.1
-----------------------------------------------------------------
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: Potential vulnerabilities with using Tomcat 3.3.1 or
earlier.
a) When used with JDK 1.3.1 or earlier:
- it allows remote attackers to potentially list
directories even with an index.html or other file
present, or obtain unprocessed source code for a
JSP file, via a URL containing a null character.
- it uses trusted privileges when processing the
web.xml file, which could allow remote attackers to
read portions of some files through the web.xml file.
b) With Cross-site scripting (XSS), in the (1) examples
and (2) ROOT web applications for Jakarta Tomcat 3.x
upto but not including 3.3.1a, allows remote attackers
to potentially execute arbitrary web script.
Note: No such potential vulnerability has been specified for
Tomcat 4.x.
More details are available at:
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0042>
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0043>
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0044>
IMPACT: Remote unauthorized access or potential code execution.
PLATFORM: HP9000 Servers running HP-UX release 11.00, 11.11,
11.20, and 11.22 with versions of the following products
are affected, and represented as:
product-name, version (product-tag/bundle-tag)
- hp apache-based web server, 1.3.27.00 or earlier
(ApacheStrong/B9415AA)
This product includes Tomcat 3.3.1.
- hp apache-based web server, 2.0.43.00 or earlier
(HPApache/B9416AA, HPApache/B9416BA)
This product includes Tomcat 3.3.1.
OV SIP 3.0 and 3.1 installations using Apache Tomcat 3.2.3.
SOLUTION: For HP-UX releases 11.00, 11.11, 11.20 and 11.22
download new HP Apache product from
<http://www.software.hp.com/>:
For ApacheStrong/B9415AA download the following:
- hp apache-based web server, 1.3.27.01 or later
(ApacheStrong/B9415AA)
This product includes Tomcat 3.3.1a.
<http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/
cgi/displayProductInfo.pl?productNumber=B9415AA132701>
For HPApache/B9416AA and HPApache/B9416BA download the
following:
- hp-ux tomcat-based servlet engine, v.1.0.01.01 or later
(hpuxwsTOMCAT/hpuxwsTomcat)
This product includes Tomcat 4.1.12.
<http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/
cgi/displayProductInfo.pl?productNumber=HPUXWSSUITE>
For OV SIP 3.0 and 3.1 installations manually upgrade
see below.
NOTE: No IPv6 solution is available at this time. This Security
Bulletin will be updated when such becomes available.
MANUAL ACTIONS: Yes - Update
Install the product containing the fix.
For customers with HPApache/B9416AA or
HPApache/B9416BA installed, the fix requires
migration to hpuxwsTOMCAT/hpuxwsTomcat and
removing the affected products from the system.
AVAILABILITY: Complete product bundles are available now on
<http://www.software.hp.com/>
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A. Background
The Common Vulnerabilities and Exposures project
<http://cve.mitre.org/> has identified multiple potential
vulnerabilities in the Jakarta-Tomcat servlet engine
(CAN-2003-0042, CAN-2003-0043, CAN-2003-0044).
It affects the following HP product numbers/versions on
HP-UX releases 11.00, 11.11, 11.20 and 11.22::
- hp apache-based web server, 1.3.27.00 or earlier
(ApacheStrong/B9415AA)
- hp apache-based web server, 2.0.43.00 or earlier
(HPApache/B9416AA, HPApache/B9416BA)
B. Recommended solution
The Apache Group has released Tomcat 3.3.1a as the best known
version that fixes the problems identified in the above
mentioned issues.
For customers using ApacheStrong/B9415AA, HP has incorporated
Tomcat 3.3.1a in the following product:
- hp apache-based web server 1.3.27.01 or later
http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/
displayProductInfo.pl?productNumber=B9415AA132701
For customers using HPApache/B9416AA and HPApache/B9416BA,
HP has incorporated Tomcat 4.1.12 in the following product:
- hp-ux tomcat-based servlet engine v.1.0.01.01 or later
http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/
displayProductInfo.pl?productNumber=HPUXWSSUITE
NOTE: No IPv6 solution is available at this time.
This Security Bulletin will be updated when such becomes
available.
Check for Tomcat Installation
-----------------------------
To determine if the Tomcat Servlet Engine from HP is installed
on your system, use Software Distributor's swlist command.
Since Tomcat is not visible at the "product" level, search for
Apache. All versions of products may co-exist on a single
system.
For example, the results of the command:
swlist -l product | grep -i apache
ApacheStrong 1.3.19.21 HP Apache-based Web Server
with Strong (128bit) Encryption
HPApache 2.0.39.01.02 HP Apache-based Web Server
Stop Tomcat
-----------------------------
Before updating, make sure to stop any previous Tomcat binary.
Otherwise, the previous binary will continue running,
preventing the new one from starting, although the installation
would be successful.
After determining which Tomcat is installed, stop Tomcat with
the following commands:
for ApacheStrong: /opt/tomcat/bin/shutdown.sh
for HPApache: /opt/hpapache2/tomcat/bin/shutdown.sh
Since Tomcat is bundled with Apache, Apache also needs to be
stopped:
for ApacheStrong: /opt/apache/bin/apachectl stop
for HPApache: /opt/hpapache2/bin/apachectl stop
Download and Install Tomcat and Apache
-----------------------------
- Download Tomcat/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/B9416AA or HPApache/B9416BA
installed, migrate to hpuxwsTOMCAT/hpuxwsTomcat 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.
NOTE: For OV SIP 3.0 and 3.1 users manually upgrade the Tomcat
Application server as a workaround. This security
bulletin will be updated when OV patches become
available.
Removing Tomcat Installation
----------------------------
If you rather remove Tomcat 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
apacheconf
hpapache2conf
NOTE: Apache will also be removed.
NOTE: For HP Apache 1.3.x, you must manually remove the Apache
directory in addition to the Tomcat directory. Apache is
under directory "/opt/apache" for HP Apache 1.3.x.
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:
http://itrc.hp.com
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)
<security-alert@hp.com>
Fingerprint =
6002 6019 BFC1 BC62 F079 862E E01F 3AFC 2D2A 7D59
If you have problems locating the key please write to
security-alert@hp.com. Please note that this key is
for signing bulletins only and is not the key returned
by sending 'get key' to security-alert@hp.com.
D. To report new security vulnerabilities, send email to
security-alert@hp.com
Please encrypt any exploit information using the
security-alert PGP key, available from your local key
server, or by sending a message with a -subject- (not body)
of 'get key' (no quotes) to security-alert@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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_______________________________________________________________________________
CIAC wishes to acknowledge the contributions of Hewlett-Packard for the
information contained in this bulletin.
_______________________________________________________________________________
CIAC, the Computer Incident Advisory Capability, is the computer
security incident response team for the U.S. Department of Energy
(DOE) and the emergency backup response team for the National
Institutes of Health (NIH). CIAC is located at the Lawrence Livermore
National Laboratory in Livermore, California. CIAC is also a founding
member of FIRST, the Forum of Incident Response and Security Teams, a
global organization established to foster cooperation and coordination
among computer security teams worldwide.
CIAC services are available to DOE, DOE contractors, and the NIH. CIAC
can be contacted at:
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FAX: +1 925-423-8002
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E-mail: ciac@ciac.org
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available from the CIAC Computer Security Archive.
World Wide Web: http://www.ciac.org/
Anonymous FTP: ftp.ciac.org
PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing
communities receive CIAC bulletins. If you are not part of these
communities, please contact your agency's response team to report
incidents. Your agency's team will coordinate with CIAC. The Forum of
Incident Response and Security Teams (FIRST) is a world-wide
organization. A list of FIRST member organizations and their
constituencies can be obtained via WWW at http://www.first.org/.
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employees, makes any warranty, express or implied, or assumes any
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