Check Point Advisories

Microsoft Device Guard Code Integrity Policy Security Feature Bypass (CVE-2017-0215)

Vulnerability
Protection

Check Point Reference:	CPAI-2017-0457
Date Published:	13 Jun 2017
Severity:	High
Last Updated:	Tuesday 13 June, 2017
Source:	Microsoft CVE-2017-0215
Industry Reference:	CVE-2017-0215
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	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	A security feature bypass vulnerability exists in Microsoft Windows Device Guard. The vulnerability is due to the way Device Guard improperly validates certain elements of a signed PowerShell script. A remote attacker could exploit this vulnerability by enticing a target user to open a specially crafted 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 Device Guard Code Integrity Policy Security Feature Bypass (CVE-2017-0215) 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 Device Guard Code Integrity Policy Security Feature Bypass (CVE-2017-0215)