A vulnerability has been identified in Adobe Flash Player, which could be exploited by remote attackers to inject arbitrary HTTP headers. This flaw is due to errors when passing user-supplied input to the ActionScript "XML.addRequestHeader()" method or to the "XML.contentType" property, which could be exploited by malicious web sites to modify HTTP headers of client requests and conduct HTTP request splitting and cross-site request forgery attacks.
Credits
Vulnerability reported by Marc Bevand (Rapid7)
ChangeLog
2006-10-19 : Initial release
2006-11-14 : Updated Solution
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