Apache Struts 2.0.0 through 2.3.4 allows remote attackers to cause a denial of service (CPU consumption) via a long parameter name, which is processed as an OGNL expression.
References
- https://nvd.nist.gov/vuln/detail/CVE-2012-4387
- https://exchange.xforce.ibmcloud.com/vulnerabilities/78183
- https://issues.apache.org/jira/browse/WW-3860
- http://struts.apache.org/2.x/docs/s2-011.html
- http://www.openwall.com/lists/oss-security/2012/09/01/4
- http://www.openwall.com/lists/oss-security/2012/09/01/5
- https://github.com/advisories/GHSA-hrgc-54mv-58gv