Check Point Advisories

Microsoft Win32k Elevation of Privilege (CVE-2017-8465)

Vulnerability
Protection

Check Point Reference:	CPAI-2017-0483
Date Published:	13 Jun 2017
Severity:	High
Last Updated:	Tuesday 13 June, 2017
Source:	Microsoft CVE-2017-8465
Industry Reference:	CVE-2017-8465
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Windows 8.1 for 32-bit systems Windows 8.1 for x64-based systems Windows Server 2012 R2 Windows RT 8.1 Windows Server 2012 R2 (Server Core installation) Windows 10 for 32-bit Systems Windows 10 for x64-based Systems Windows 10 Version 1511 for x64-based Systems Windows 10 Version 1511 for 32-bit Systems Windows Server 2016 Windows 10 Version 1607 for 32-bit Systems Windows 10 Version 1607 for x64-based Systems Windows Server 2016 (Server Core installation) Windows 10 Version 1703 for 32-bit Systems Windows 10 Version 1703 for x64-based Systems
Vulnerability Description	An elevation of privilege vulnerability exists in Microsoft Windows. The vulnerability is caused when the Windows kernel-mode fails to properly handle objects in memory. A remote attacker can exploit this vulnerability by enticing a user to run a specially crafted executable file.

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 Win32k Elevation of Privilege (CVE-2017-8465) 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: Content Protection Violation.
Attack Information: Microsoft Win32k Elevation of Privilege (CVE-2017-8465)