Check Point Advisories

Microsoft Windows Kernel Elevation of Privilege (MS17-017: CVE-2017-0050)

Vulnerability
Protection

Check Point Reference:	CPAI-2017-0163
Date Published:	14 Mar 2017
Severity:	High
Last Updated:	Tuesday 14 March, 2017
Source:	Microsoft MS17-017
Industry Reference:	CVE-2017-0050
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Windows Vista Windows Server 2008 Windows 7 Windows Server 2008 R2 Windows 8.1 Windows Server 2012 and Windows Server 2012 R2 Windows RT 8.1 Windows 10 Windows Server 2016 Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) Windows Server 2012 (Server Core installation) Windows Server 2012 R2 (Server Core installation) Windows Server 2016 for x64-based Systems (Server Core installation)
Vulnerability Description	An elevation of privilege vulnerability exists in Microsoft Windows. The vulnerability is due to the way Windows kernel API enforces permissions. A remote attacker can exploit this vulnerability by enticing a user to run a specially crafted executable.
Update/Patch Avaliable	Apply patches from: MS17-017

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 Windows Kernel Elevation of Privilege (MS17-017: CVE-2017-0050) 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 Kernel Elevation of Privilege (MS17-017: CVE-2017-0050)