Check Point Advisories

Microsoft Bowser.sys Information Disclosure (MS16-135: CVE-2016-7218)

Check Point Reference: CPAI-2016-1119
Date Published: 15 Dec 2016
Severity: High
Last Updated: Thursday 29 December, 2016
Source: Microsoft MS16-35
Industry Reference:CVE-2016-7218
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable? Windows Vista Service Pack 2
Windows Vista x64 Edition Service Pack 2
Windows Server 2008 for 32-bit Systems Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2
Windows Server 2008 for Itanium-based Systems Service Pack 2
Windows 7 for 32-bit Systems Service Pack 1
Windows 7 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for Itanium-based Systems Service Pack 1
Windows 8.1 for 32-bit Systems
Windows 8.1 for x64-based Systems
Windows Server 2012
Windows Server 2012 R2
Windows RT 8.1
Windows 10 for 32-bit Systems
Windows 10 for x64-based Systems
Windows 10 Version 1511 for 32-bit Systems
Windows 10 Version 1511 for x64-based Systems
Windows 10 Version 1607 for 32-bit Systems
Windows 10 Version 1607 for x64-based Systems
Windows Server 2016 for x64-based Systems
Vulnerability Description An information disclosure vulnerability exists in Microsoft Windows regarding bowser.sys . A local attacker could exploit this vulnerability by running a specially crafted malicious executable file. Successful exploitation of this vulnerability could lead to information disclosure.

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

  1. In the IPS tab, click Protections and find the Microsoft Bowser.sys Information Disclosure (MS16-135: CVE-2016-7218) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Web Client Enforcement Violation.
Attack Information:  Microsoft Bowser.sys Information Disclosure (MS16-135: CVE-2016-7218)

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