Check Point Advisories

Microsoft Windows Win32k Elevation of Privilege (MS16-098: CVE-2016-3308)

Vulnerability
Protection

Check Point Reference:	CPAI-2016-0674
Date Published:	9 Aug 2016
Severity:	High
Last Updated:	Wednesday 27 March, 2024
Source:	Microsoft MS16-098
Industry Reference:	CVE-2016-3308
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Windows Vista Service Pack 2 Windows Vista x64 Edition Service Pack 2 Windows Server 2008 for 32-bit Systems Service Windows Server 2008 for x64-based Systems Service Pack 2 Windows Server 2008 for Itanium-based Systems Service Pack 2 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 Server 2012 Windows 8.1 for x64-based Systems Windows Server 2012 R2 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[ Windows Server 2008 for 32-bit Systems Service Pack 2 Windows Server 2008 for x64-based Systems Service Pack 2 Windows Server 2008 R2 for x64-based Systems Service Pack 1 Windows Server 2012 (Server Core installation) Windows Server 2012 R2 (Server Core installation)
Vulnerability Description	An out of bound memory access vulnerability was discovered within Microsoft Windows. The root cause is within win32kfull subsystem that performs an out of bound memory access leading to a heap memory corruption. A successful exploitation of this issue could allow an attacker to elevate his privileges on the system.
Update/Patch Avaliable	Apply patches from: MS16-098

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 R81 / R80 / R77 / R75

In the IPS tab, click Protections and find the Microsoft Windows Win32k Elevation of Privilege (MS16-098: CVE-2016-3308) 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 Windows Win32k Elevation of Privilege (MS16-098: CVE-2016-3308)