[NT] BEA WebLogic Performance Pack Denial of ServiceFrom: firstname.lastname@example.org
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From: firstname.lastname@example.org To: email@example.com Date: Mon, 8 Jul 2002 23:44:44 +0200 (CEST)
The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
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BEA WebLogic Performance Pack Denial of Service
If the performance pack is enabled, the BEA WebLogic Server can be crashed
by a malicious user. The performance pack is enabled in a default
- BEA WebLogic 7.0 on Windows 2000 Server
* BEA WebLogic Server and Express 5.1.x, 6.0.x, and 6.1.x on Microsoft NT
or Windows 2000.
<http://www.bea.com/> BEA WebLogic was designed for enterprise
applications that demand the flexibility and security of server-side
components in Java, BEA WebLogic server brings scalability, performance,
and fault tolerance to mission-critical Web-based solutions. BEA WebLogic
Server is an award-winning Java application server for developing,
deploying, and managing Web applications. BEA WebLogic Server also offers
the most complete implementation of the Java 2 Enterprise Edition standard
- including Enterprise JavaBeans.
The Bea WebLogic Server is vulnerable to a data/connection flooding that
will result in the web service crashing with a report of an error in
The vendor was notified on 1 May 2002. On 2 May 2002, the vendor had
reproduced the issue and assigned case number 324070 and change request
CR076409 to the issue. On 17 May 2002, the vendor supplied us with a
workaround for the issue. On 3 July, the vendor issued an official patch
for the issue.
As a temporary workaround, you can disable the performance pack:
1. Start the WebLogic Server Console.
2. Open the Servers folder in the navigation tree.
3. Select your server in the Servers folder.
4. Select the Configuration tab.
5. Select the Tuning tab.
6. If the "Native IO Enabled" check box is selected, uncheck it.
7. Click Apply.
8. Restart your server.
The vendor released bulletin, containing links to the official patches,
can be accessed through this URL (wrapped for readability):
The information has been provided by <mailto:firstname.lastname@example.org> Peter
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The information in this bulletin is provided "AS IS" without warranty of any kind.
In no event shall we be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages.