Juan Pablo Lopez Yacubian has reported a vulnerability in Blue Coat Security Gateway OS (SGOS), which can be exploited by malicious people to conduct cross-site scripting attacks.

Input passed via the URL is not properly sanitised by the ICAP Patience Page before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.

The vulnerability affects SGOS versions 4.2, 5.2, and 5.3.

Solution
Update to version 4.2.9, 5.2.5, or 5.3.1.7 or later.

Provided and/or discovered by
Juan Pablo Lopez Yacubian

Changelog
Further details available to Secunia VIM customers

Original Advisory
Blue Coat:
http://www.bluecoat.com/support/securityadvisories/icap_patience

Deep Links
Links available to Secunia VIM customers