Full title: Apache Struts 2 DefaultActionMapper Prefixes OGNL Code Execution 
Category: remote exploits
Platform: multiple
The Struts 2 DefaultActionMapper supports a method for short-circuit navigation state changes by prefixing parameters with "action:" or "redirect:", followed by a desired navigational target expression. This mechanism was intended to help with attaching navigational information to buttons within forms. In Struts 2 before 2.3.15.1 the information following "action:", "redirect:" or "redirectAction:" is not properly sanitized. Since said information will be evaluated as OGNL expression against the value stack, this introduces the possibility to inject server side code. This Metasploit module has been tested successfully on Struts 2.3.15 over Tomcat 7, with Windows 2003 SP2 and Ubuntu 10.04 operating systems.

# 0day.today @ http://0day.today/