Intrusion Prevention

MS.IE.NavCancel.XSS

Description

This indicates an attack attempt against a Cross Site Scripting vulnerability in Microsoft Internet Explorer.
The vulnerability is caused by an error where the browser fails to properly sanitize the argument of a "res: URI" sent to "navcancl.htm". An attacker may include malicious script code by supplying an injection string through the URL.

Affected Products

Microsoft Internet Explorer 7.

Impact

System Compromise: Remote attackers can gain control of vulnerable systems.

Recommended Actions

Apply the patch supplied by the vendor.
http://technet.microsoft.com/en-us/security/bulletin/MS07-033