Apache Struts is an open-source web application framework for developing Java EE web applications. It uses and extends the Java Servlet API to encourage developers to adopt a model-view-controller (MVC) architecture.
Struts uses Object-Graph Navigation Language (OGNL) to provide extensive expression evaluation capabilities. Struts 2 versions prior to 184.108.40.206 do not properly handle the includeParams attribute in URLs. This could allow remote attackers to execute arbitrary OGNL code via a crafted request.
Upgrade to Struts 220.127.116.11 or higher.
This exploit has been tested against Apache Software Foundation Struts 18.104.22.168 on Windows Server 2003 SP2 English (DEP OptOut) and Windows Server 2008 SP2 (DEP OptOut).
This exploit requires that the Struts Action URL be provided.