A Security Vulnerability in the Sun Java System Access Manager Policy Agent May Result in a Denial of Service (DoS) to Web Proxy Server 4.0

---

A Security Vulnerability in the Sun Java System Access Manager Policy Agent May Result in a Denial of Service (DoS) to Web Proxy Server 4.0

1. Impact

A security vulnerability in the Sun Java System Access Manager Policy Agent may allow a local or remote unprivileged user to crash the Sun Java System Web Proxy Server, when this is the deployment container that the Agent is running in. This is a type of Denial of Service (DoS).

Sun would like to thank Jason Jones of Inner Security Ltd (http://www.innersecurity.co.uk) for bringing this issue to our attention.

2. Contributing Factors

This issue can occur in the following releases for all platforms (Solaris 8, 9, and 10 (x86 and SPARC), Linux and Windows):

• Sun Java System Access Manager Policy Agent 2.2 (for Web Proxy Server 4.0) without patch 141248-01

To determine the version of Web Proxy Server on a system, the following command can be run:
For instructions on how to determine the version of Sun Java System Access Manager Policy Agent on a system, see the "Sun Java System Access Manager Policy Agent 2.2 Release Notes" at:


and see the 'amAgent' log file for details. If you are uncertain of the location of the 'amAgent' log file, you can find it in the web agent 'AMAgent.properties' configuration file as the value assigned to the following property:


3. Symptoms

If the described issue is exploited, the Web Proxy Server protected by Policy Agent may crash, making its services unavailable briefly until the Web Proxy Server is restarted by the Proxy Server's watchdog process, which monitors and restarts Proxy Server instances.

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 for all platforms (Solaris 8, 9, and 10 (x86 and SPARC), Linux and Windows):

• Sun Java System Access Manager Policy Agent 2.2 (for Web Proxy Server 4.0) with patch 141248-01 or later

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.

Copyright 2000-2009 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, CA 95054 U.S.A. All rights reserved.




Attachments

This solution has no attachment