CRITICAL
Rule Definition
The software constructs all or part of an expression language (EL) statement in a Java Server Page (JSP) using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended EL statement before it is executed.
Remediation
It is strongly recommended to upgrade to Struts 2.3.14.3.
if not possible, You should change the definition by setting up a new constant in struts.xml as below:
Violation Code Sample
<action name="MyAction_*" class="MyActionClass" method="{1}">
Fixed Code Sample
upgrade to Struts 2.3.14.3.
Reference
https://cwe.mitre.org/data/definitions/917
https://cwiki.apache.org/confluence/display/WW/S2-015
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2135
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2134
OWASP Top Ten 2017 Category A1 - Injection
Related Technologies
Technical Criterion
CWE-917 - Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')
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