Apache Struts 2 DefaultActionMapper Prefixes OGNL Code Execution
Description
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.
Author(s)
- Takeshi Terada
- sinn3r <sinn3r@metasploit.com>
- juan vazquez <juan.vazquez@metasploit.com>
Platform
Linux,Windows
Development
Module Options
To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':
msf > use exploit/multi/http/struts_default_action_mapper
msf exploit(struts_default_action_mapper) > show targets
...targets...
msf exploit(struts_default_action_mapper) > set TARGET < target-id >
msf exploit(struts_default_action_mapper) > show options
...show and set options...
msf exploit(struts_default_action_mapper) > exploit
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