THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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Who should read this | All Struts 2 developers and users |
|---|---|
Impact of vulnerability | Affects of a cross-site scripting vulnerability. |
Maximum security rating | Important |
Recommendation | Ugrade Upgrade runtime JRE to a recent major version, preferably 1.8. Alternatively upgrade to Struts 2.3.25 |
Affected Software | Struts 2.0.0 - Struts Struts 2.3.24.1 |
Reporter | WhiteHat Security (whitehatsec.com) |
CVE Identifier | - |
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When using a single byte page encoding such as ISO-8895-1, an attacker might submit a non-spec URL-encoded parameter value including multi-byte characters.
Struts 2 used the the standard JRE URLDecoder to decode parameter values. Especially JRE 1.5's URLDecoder implementation seems to be broken to the point that this non-spec encoding isn't rejected / filtered. In later JREs the issue was fixed, best known solution is found in JRE 1.8.
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