Check Point Advisories

Apple Safari WebKit Range Object Remote Code Execution (CVE-2011-0115)

Vulnerability
Protection

Check Point Reference:	CPAI-2011-345
Date Published:	19 Jul 2011
Severity:	High
Last Updated:	Thursday 12 January, 2012
Source:
Industry Reference:	CVE-2011-0115
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	A Remote attacker can exploit this vulnerability by enticing an unsuspecting target user to open a maliciously crafted web page. Successful exploitation of this vulnerability may enable an attacker to execute code in an affected system in the security context of the logged in user. A remote code execution vulnerability has been reported in Apple Safari WebKit. This is a remote code execution vulnerability. The vulnerability is due to the improper way in which WebKit.dll parses a Range object within the Document Object Model (DOM). Successful exploitation of this vulnerability may enable an attacker to execute code in an affected system in the security context of the logged in user. Unsuccessful exploit attempt may cause the affected application to 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 Apple Safari WebKit Range Object Remote Code Execution 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 Range Object remote code execution