Description
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.
Remediation
References
http://secunia.com/advisories/50420
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
http://www.securityfocus.com/bid/55346
https://exchange.xforce.ibmcloud.com/vulnerabilities/78183
https://issues.apache.org/jira/browse/WW-3860
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CVE-2016-3093 Vulnerability in maven package org.apache.struts.xwork:xwork-core