[ https://issues.apache.org/struts/browse/WW-2316?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Don Brown updated WW-2316:
--------------------------

    Fix Version/s: 2.1.1
       Issue Type: Improvement  (was: Bug)
          Summary: Ability to prevent method:METHOD_NAME access  (was: ?method:METHOD_NAME vulnerability)

I changed this ticket to better reflect the feature and the proposed improvement.  The ability to call any public, no-arg method on an action has been a key feature since WebWork 1.  That said, I agree it would be nice to allow developers that don't use this feature the ability to disable it.

> Ability to prevent method:METHOD_NAME access
> --------------------------------------------
>
>                 Key: WW-2316
>                 URL: https://issues.apache.org/struts/browse/WW-2316
>             Project: Struts 2
>          Issue Type: Improvement
>          Components: Dispatch Filter
>    Affects Versions: 2.0.11, 2.1.0
>            Reporter: Dale Newfield
>             Fix For: 2.1.1
>
>
> In order to allow multiple form submission buttons result in different behavior based on the button pressed, a specially named parameter is included in the form submission that instructs the ActionMapper to call a method indicated in the URL.  This special parameter can be used to implement a credential escalation attack, though:  If a user has suffiicient credentials to call a single method on an action, this provides a mechanism whereby they could call any method on that action.  The "action!method.do" capability introduces a similar vulnerability, and the "allowDynamicMethodCalls" option closes that hole.  Besides needing to provide a different mechanism to allow different form submission buttons to do different things, is there a large downside to using this same option ("allowDynamicMethodCalls") to close this hole as well?
> (Just to be explicit, that solution would wrap "if (allowDynamicMethodCalls) {" and "}" around lines 186-188 in org.apache.struts2.dispatcher.mapper.DefaultActionMapper.java .)
> http://www.nabble.com/forum/ViewPost.jtp?post=13710147&framed=y
> http://www.nabble.com/forum/ViewPost.jtp?post=13711925&framed=y

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