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Check Point Advisories

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

Check Point Reference: CPAI-2017-0093
Date Published: 14 Mar 2017
Severity: High
Last Updated: 27 Mar 2017
Source: Microsoft Security Bulletin MS17-021
Industry Reference:CVE-2017-0042
Protection Provided by:

Security Gateway
R80, R77, R76, 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 AvaliableApply 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 / R76 / R75

  1. 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.
  2. Install policy on all modules.

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)