Check Point Advisories

Apple Safari WebKit Form Elements Denial of Service (CVE-2011-2813)

Vulnerability
Protection

Check Point Reference:	CPAI-2012-025
Date Published:	12 Jan 2012
Severity:	High
Last Updated:	Wednesday 08 January, 2014
Source:
Industry Reference:	CVE-2011-2813
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	A denial of service vulnerability has been reported in Apple Safari WebKit. The vulnerability is due to improper initialization of DOM objects for certain attributes. A remote attacker may exploit this vulnerability by enticing target users to open specially crafted HTML web pages. Successful exploitation could crash the user's browser, resulting in a denial of service condition.

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 Apple Safari WebKit Form Elements 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: Apple Safari WebKit Form Elements Denial of Service