Software Engineering Institute

BEA Systems describes WebLogic Server as "an industrial-strength application infrastructure for developing, integrating, securing, and managing distributed Java applications." The WebLogic Server provides a feature that allows an administrator to restrict access to certain URLs. There is a vulnerability in this URL pattern matching feature that could cause patterns ending in "*" rather than "/*" to be evaluated as wildcard patterns.

According to the BEA Security Advisory,
In WebLogic Server version 6.x, the illegal URL pattern of /mydir* is treated the same as the legal URL pattern /mydir/*. If a WebLogic Server version 6.x Web application used the illegal syntax and is moved to WebLogic Server version 7.x or greater, the URL patterns that were protected by the illegal syntax will stop being protected. There is no notification in the change of protection.

According to the BEA Security Advisory, the following versions of WebLogic Server and Express are affected by this vulnerability:

• WebLogic Server and WebLogic Express version 8.1 through Service Pack 1, on all platforms
• WebLogic Server and WebLogic Express version 7.0 through Service Pack 4, on all platforms

A remote user could access restricted URLs that were previously protected by specific URL pattern matching syntax.

Upgrade or Fix SyntaxWebLogic Server and WebLogic Express version 8.1
Upgrade to WebLogic Server and WebLogic Express version 8.1 Service Pack 2.

or

In all deployed web applications, convert the illegal URL patterns to legal syntax.

WebLogic Server and WebLogic Express version 7.0
Upgrade to WebLogic Server and WebLogic Express version 7.0 Service Pack 5.

or

In all deployed web applications, convert the illegal URL patterns to legal syntax.