Cross-Site Scripting (XSS) Vulnerability in the Sun Java System Web Server 6.1 Reverse Proxy Plug-in

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Cross-Site Scripting (XSS) Vulnerability in the Sun Java System Web Server 6.1 Reverse Proxy Plug-in

1. Impact

A Cross-Site Scripting (XSS) security vulnerability in the Sun Java System Web Server 6.1 Reverse Proxy Plug-in may allow a local or remote unprivileged user to execute arbitrary script or HTML within a user's browser which can lead to hijacked sessions, stolen cookie information, and a loss of data privacy between a client and the server.

2. Contributing Factors

This issue can occur in the following releases:

SPARC Platform

• Sun Java System Web Server 6.1 without Service Pack 11
• Sun Java System Web Server 6.1 without patch 116648-23

x86 Platform

• Sun Java System Web Server 6.1 without Service Pack 11
• Sun Java System Web Server 6.1 without patch 116649-23

Linux

• Sun Java System Web Server 6.1 without Service Pack 11
• Sun Java System Web Server 6.1 without patch 118202-15

Windows

• Sun Java System Web Server 6.1 without Service Pack 11
• Sun Java System Web Server 6.1 without patch 121524-07
  

HP-UX

• Sun Java System Web Server 6.1 without Service Pack 11
• Sun Java System Web Server 6.1 without patch 121510-07

AIX

• Sun Java System Web Server 6.1 without Service Pack 11

Note: Sun Java System Web Server 7.0 is not impacted by this issue.

To determine the version of Sun Java System Web Server 6.1 on a system, the following command can be run:

$ <WS-install>/https-<host>/start -version
Sun Microsystems, Inc.
Sun ONE Web Server 6.1SP11 B05/13/2009 10:52

(Where <WS-install> is the installation directory of the Web Server and <host> should be the actual host name on which the Web Server is installed).

This issue only affects Web Server installations which are making use of the Reverse Proxy Plug-in. To determine if this plug-in is in use on a host, the 'magnus.conf' configuration file can be examined, searching for the 'libpassthrough.so' entry. This file is stored in the 'config' directory within the root directory of each Web Server instance installation. For example:

     # cd <server-root>/config
     # grep "libpassthrough.so" magnus.conf
     Init fn="load-modules" shlib="<shared-library-path>/libpassthrough.so"

3. Symptoms

There are no predictable symptoms that would indicate the described issue has been exploited to execute arbitrary script or HTML on the system.

4. Workaround

There is no workaround for this issue. Please see the Resolution section below.

5. Resolution

This issue is addressed in the following releases:

SPARC Platform

• Sun Java System Web Server 6.1 with Service Pack 11 or later
• Sun Java System Web Server 6.1 with patch 116648-23 or later

x86 Platform

• Sun Java System Web Server 6.1 with Service Pack 11 or later
• Sun Java System Web Server 6.1 with patch 116649-23 or later

Linux

• Sun Java System Web Server 6.1 with Service Pack 11 or later
• Sun Java System Web Server 6.1 with patch 118202-15 or later

Windows

• Sun Java System Web Server 6.1 with Service Pack 11 or later
• Sun Java System Web Server 6.1 with patch 121524-07 or later

HP-UX

• Sun Java System Web Server 6.1 with Service Pack 11 or later
• Sun Java System Web Server 6.1 with patch 121510-07  or later

AIX

• Sun Java System Web Server 6.1 with Service Pack 11 or later

Sun Java System Web Server 6.1 Service Pack 11 is available from the Sun Download Center at:

https://cds.sun.com/is-bin/INTERSHOP.enfinity/WFS/CDS-CDS_SMI-Site/en_US/-/USD/ViewProductDetail-Start?ProductRef=SJWS-6.1-SP11-OTH-G-F@CDS-CDS_SMI

For more information on Security Sun Alerts, see Technical Instruction ID 213557.

This Sun Alert notification is being provided to you on an "AS IS" basis. This Sun Alert notification may contain information provided by third parties. The issues described in this Sun Alert notification may or may not impact your system(s). Sun makes no representations, warranties, or guarantees as to the information contained herein. ANY AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE HEREBY DISCLAIMED. BY ACCESSING THIS DOCUMENT YOU ACKNOWLEDGE THAT SUN SHALL IN NO EVENT BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN. This Sun Alert notification contains Sun proprietary and confidential information. It is being provided to you pursuant to the provisions of your agreement to purchase services from Sun, or, if you do not have such an agreement, the Sun.com Terms of Use. This Sun Alert notification may only be used for the purposes contemplated by these agreements.

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