Check Point Advisories

Microsoft Browser Remote Code Execution (MS16-129: CVE-2016-7241)

Vulnerability
Protection

Check Point Reference:	CPAI-2016-0963
Date Published:	8 Nov 2016
Severity:	High
Last Updated:	Wednesday 28 December, 2016
Source:	Microsoft MS16-129
Industry Reference:	CVE-2016-7241
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Microsoft Edge Microsoft Internet Explorer 11 Microsoft Windows 7 Microsoft Windows 8.1 Microsoft Windows RT 8.1 Microsoft Windows 10 Microsoft Windows Server 2008 R2 Microsoft Windows Server 2012 R2 Microsoft Windows Server 2016
Vulnerability Description	A type confusion vulnerability has been reported in the Scripting Engines of Microsoft Edge and Internet Explorer. This vulnerability is due to improper access of objects in memory when the JSON.parse JavaScript function is called. A remote attacker could exploit this vulnerability by enticing the target user to open a specially crafted web page. Successful exploitation could lead to information disclosure or arbitrary code execution under the security context of the target user.
Update/Patch Avaliable	Apply patches from: MS16-129

Protection Overview

This protection detects 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 Microsoft Browser Remote Code Execution (MS16-129: CVE-2016-7241) 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: Microsoft Browser Remote Code Execution (MS16-129: CVE-2016-7241)