The Adobe Macromedia Flash 9 plug-in allows remote attackers to cause a victim machine to establish TCP sessions with arbitrary hosts via a Flash (SWF) movie, related to lack of pinning of a hostname to a single IP address after receiving an allow-access-from element in a cross-domain-policy XML document, and the availability of a Flash Socket class that does not use the browser's DNS pins, aka DNS rebinding attacks, a different issue than CVE-2002-1467 and CVE-2007-4324.

ActionScript 3 (AS3) in Adobe Flash Player 9.0.47.0, and other versions and other 9.0.124.0 and earlier versions, allows remote attackers to bypass the Security Sandbox Model, obtain sensitive information, and port scan arbitrary hosts via a Flash (SWF) movie that specifies a connection to make, then uses timing discrepancies from the SecurityErrorEvent error to determine whether a port is open or not. NOTE: 9.0.115.0 introduces support for a workaround, but does not fix the vulnerability.