Check Point Advisories

Microsoft Windows Win32k Elevation of Privilege (MS16-062: CVE-2016-0176)

Check Point Reference: CPAI-2016-0317
Date Published: 10 May 2016
Severity: High
Last Updated: Tuesday 10 May, 2016
Source: Microsoft MS16-062
Industry Reference:CVE-2016-0176
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable? Windows 7 for 32-bit Systems Service Pack 1
Windows 7 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for Itanium-based Systems Service Pack 1
Windows 8.1 for 32-bit Systems
Windows 8.1 for x64-based Systems
Windows Server 2012
Windows Server 2012 R2
Windows RT 8.1
Windows 10 for 32-bit Systems
Windows 10 for x64-based Systems
Windows 10 Version 1511 for 32-bit Systems
Windows 10 Version 1511 for x64-based Systems
Vulnerability Description A heap corruption vulnerability exists in Microsoft Windows. The vulnerability is due to an error in the way windows kernel is calculating the correct size of the current tocken, which will lead to a buffer overflow. A remote attacker can exploit this vulnerability by running a specially crafted application.
Update/Patch AvaliableApply patches from: MS16-062

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

  1. In the IPS tab, click Protections and find the Microsoft Windows Win32k Elevation of Privilege (MS16-062: CVE-2016-0176) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Web Client Enforcement Violation.
Attack Information:  Microsoft Windows Win32k Elevation of Privilege (MS16-062: CVE-2016-0176)

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