Check Point Advisories

Macromedia Flash Player LoadMovie Denial Of Service

Vulnerability
Protection

Check Point Reference:	CPAI-2004-135
Date Published:	14 Feb 2010
Severity:	Medium
Last Updated:	Sunday 14 February, 2010
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	Macromedia Flash allows developers to create interactive video, text and graphic content to be played within the Macromedia Flash player. The most commonly used Macromedia Flash player is the Macromedia Flash browser plug-in, which is used to display Macromedia Flash content within a webpage. There is a null pointer exception within a vulnerable program, which will cause the underlying browser to terminate. Macromedia Flash player plug-in is a multi-media module/plug-in for displaying Flash content within an HTML web page. A vulnerability exists in the way Macromedia Flash Player plug-in handles an object when it attempts to load a movie. A malicious attacker could crash a vulnerable Flash Player with a specially crafted script in a web page. In case of an attack, the browser will terminate abnormally.

Protection Overview

This protection will detect and block attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75

In the IPS tab, click Protections and find the Macromedia Flash Player LoadMovie Denial Of Service protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Web Client Enforcement Violation.
Attack Information: Macromedia Flash Player LoadMovie denial of service