Description
CookieInterceptor in Apache Struts before 2.3.20, when a wildcard cookiesName value is used, does not properly restrict access to the getClass method, which allows remote attackers to "manipulate" the ClassLoader and execute arbitrary code via a crafted request. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-0094.
Remediation
References
http://secunia.com/advisories/59178
http://www.oracle.com/technetwork/topics/security/cpuapr2015-2365600.html
http://www.securityfocus.com/archive/1/531952/100/0/threaded
http://www-01.ibm.com/support/docview.wss?uid=swg21676706
https://cwiki.apache.org/confluence/display/WW/S2-021
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