## https://sploitus.com/exploit?id=SAINT:279F8312DEF0028C5D034325A810E73D
Added: 08/01/2013
CVE: [CVE-2013-2251](<https://vulners.com/cve/CVE-2013-2251>)
BID: [61189](<http://www.securityfocus.com/bid/61189>)
OSVDB: [95405](<http://www.osvdb.org/95405>)
### Background
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.
### Problem
The `**DefaultActionMapper**` in Struts 2 versions prior to 2.3.15.1 does not properly handle parameters with a crafted `**redirect:**` prefix. This could allow remote attackers to execute arbitrary OGNL code.
### Resolution
[Upgrade](<http://struts.apache.org/download.cgi#struts23151>) to Struts 2.3.15.1 or higher.
### References
<http://struts.apache.org/development/2.x/docs/s2-016.html>
### Limitations
This exploit was tested against Apache Software Foundation Struts 2.3.1.1 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.
### Platforms
Windows