Check Point Advisories

Internet Explorer NULL Object Access Remote Code Execution (MS12-052; CVE-2012-2521)

Vulnerability
Protection

Check Point Reference:	CPAI-2012-342
Date Published:	14 Aug 2012
Severity:	High
Last Updated:	Tuesday 14 August, 2012
Source:
Industry Reference:	CVE-2012-2521
Protection Provided by:	Security Gateway R81, R80, R77, R75, R71, R70
Who is Vulnerable?
Vulnerability Description	A remote code execution vulnerability has been reported in Internet Explorer. The vulnerability is due to an error in the way Internet Explorer attempts to access an object that has been deleted. A remote attacker can exploit this issue by enticing a target user to open a specially crafted web page. Successful exploitation could allow an attacker to execute arbitrary code in the security context of the logged-on user.

Protection Overview

This protection will detect and block attempts to open a malicious web page.

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 / R71 / R70

In the IPS tab, click Protections and find the Internet Explorer NULL Object Access Remote Code Execution (MS12-052) 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: Internet Explorer NULL Object Access Remote Code Execution (MS12-052)