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https://issues.apache.org/jira/browse/WW-4171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13730951#comment-13730951
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Rene Gielen commented on WW-4171:
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[~d...@solaraccess.com] No, parameter processing should be safe here - message
property will contain "${2*3}" after ParametersInterceptor; but passing the so
far unevaluated expression string to getText() will force an OGNL evaluation in
Jon's example.
So far I see a "passing unsanitized user input to an API" issue, which is
generally a questionable idea. I agree with Jon that the API JavaDocs should
state clearly that expression evaluation will take place, such that users are
warned. Nevertheless, I don't see we need further actions like active
prevention and such.
Just an idea: even more valuable than simple JavaDoc could be an annotation for
parameters, like @SanitizingRequired or @ExpressionAware...
> getText methods are not documented as evaluating OGNL
> -----------------------------------------------------
>
> Key: WW-4171
> URL: https://issues.apache.org/jira/browse/WW-4171
> Project: Struts 2
> Issue Type: Improvement
> Components: Documentation
> Affects Versions: 2.3.15.1
> Reporter: Coverity Security Research Laboratory
> Assignee: Lukasz Lenart
> Priority: Minor
> Labels: security
> Fix For: 2.3.16
>
>
> The methods below evaluate OGNL as their first parameter. However they are
> not documented as evaluating OGNL. We have observed this occurring in one
> project and are contacting the affected vendors.
> com.opensymphony.xwork2.TextProviderSupport.getText(String, String[])
> com.opensymphony.xwork2.TextProviderSupport.getText(String, List<?>)
> com.opensymphony.xwork2.TextProviderSupport.getText(String)
> These methods are then used by ActionSupport (via its getText methods). None
> of these methods are documented as evaluating OGNL either.
> This issue is recommending that all of these methods are documented as
> evaluating OGNL since this may come as a surprise to some developers.
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