Description
The CookieInterceptor component in Apache Struts before 2.3.1.1 does not use the parameter-name whitelist, which allows remote attackers to execute arbitrary commands via a crafted HTTP Cookie header that triggers Java code execution through a static method.
Remediation
References
http://www.exploit-db.com/exploits/18329
https://lists.immunityinc.com/pipermail/dailydave/2012-January/000011.html
http://secunia.com/advisories/47393
http://struts.apache.org/2.x/docs/version-notes-2311.html
http://struts.apache.org/2.x/docs/s2-008.html
http://archives.neohapsis.com/archives/bugtraq/2012-01/0031.html
https://www.sec-consult.com/files/20120104-0_Apache_Struts2_Multiple_Critical_Vulnerabilities.txt