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Apache Struts 2 DefaultActionMapper Prefixes OGNL Code Execution

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Disclosed
Jul 2, 2013
Created
May 30, 2018

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.

Authors

Takeshi Terada
sinn3r [email protected]
juan vazquez [email protected]

Platform

Linux,Windows

Architectures

x86

References

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
Title
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