Check Point Advisories

Microsoft Windows DirectShow Information Disclosure (MS17-021: CVE-2017-0042)

Vulnerability
Protection

Check Point Reference:	CPAI-2017-0093
Date Published:	14 Mar 2017
Severity:	High
Last Updated:	Monday 27 March, 2017
Source:	Microsoft MS17-021
Industry Reference:	CVE-2017-0042
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
Vulnerability Description	An information disclosure vulnerability exists in Windows DirectShow. The vulnerability is due to the way Windows DirectShow handles objects in memory. A remote attacker can exploit this issue by enticing a victim to open a specially crafted file.
Update/Patch Avaliable	Apply patches from: MS17-021

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 DirectShow Information Disclosure (MS17-021: CVE-2017-0042) 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: Media Player Enforcement Violation.
Attack Information: Microsoft Windows DirectShow Information Disclosure (MS17-021: CVE-2017-0042)