Summary
Double OGNL evaluation when using raw user input in tag's attributes.Who should read this | All Struts 2 developers and users |
|---|---|
Impact of vulnerability | Possible Remote Code Execution vulnerability |
Maximum security rating | Important |
Recommendation | Always validate incoming parameters' values when re-assigning them to certain Struts' tags attributes. Alternatively upgrade to Struts 2.3.26 |
Affected Software | Struts 2.0.0 - Struts Struts 2.3.24.1 |
Reporter | Romain Gaucher rgaucher at coverity dot com - Coverity |
CVE Identifier | CVE-2016-0785 |
Problem
The Apache Struts frameworks performs double evaluation of attributes' values assigned to certain tags so it is possible to pass in a value that will be evaluated again when a tag's attributes will be rendered.
Solution
Adding a proper validation of each value that's coming in and it's used in tag's attributes. Alternatively upgrade to Struts 2.3.26.
Backward compatibility
No issues expected when upgrading to Struts 2.3.26
Workaround
Not possible