Detections
Analytics
Cross-Domain Policy File (crossdomain.xml) Detection
info Nessus Network Monitor Plugin ID 4505
Synopsis
The remote web server contains a 'crossdomain.xml' file.Description
The remote web server contains a cross-domain policy file. This is a simple XML file used by Adobe's Flash Player to allow access to data that resides outside the exact web domain from which a Flash movie file originated.Solution
Review the contents of the policy file carefully. Improper policies, especially an unrestricted one with just '*', could allow for cross-site request forgery and cross-site scripting attacks against the web server.See Also
http://www.adobe.com/go/tn_14213
http://www.nessus.org/u?74a6a9a5
http://www.nessus.org/u?50ee6db2
http://www.adobe.com/devnet/flashplayer/articles/cross_domain_policy.html