Check Point Advisories

Microsoft Defender Remote Code Execution (CVE-2021-1647)

Check Point Reference: CPAI-2021-0001
Date Published: 12 Jan 2021
Severity: Critical
Last Updated: Thursday 21 January, 2021
Source: Microsoft CVE-2021-1647
Industry Reference:CVE-2021-1647
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable? Microsoft System Center Endpoint Protection
Microsoft System Center 2012 R2 Endpoint Protection
Microsoft Security Essentials
Microsoft System Center 2012 Endpoint Protection
Windows Defender on Windows 10 Version 1803 for 32-bit Systems
Windows Defender on Windows 10 Version 1803 for x64-based Systems
Windows Defender on Windows 10 Version 1803 for ARM64-based Systems
Windows Defender on Windows 10 Version 1809 for 32-bit Systems
Windows Defender on Windows 10 Version 1809 for x64-based Systems
Windows Defender on Windows 10 Version 1809 for ARM64-based Systems
Windows Defender on Windows Server 2019
Windows Defender on Windows Server 2019 (Server Core installation)
Windows Defender on Windows 10 Version 1909 for 32-bit Systems
Windows Defender on Windows 10 Version 1909 for x64-based Systems
Windows Defender on Windows 10 Version 1909 for ARM64-based Systems
Windows Defender on Windows Server, version 1909 (Server Core installation)
Windows Defender on Windows 10 Version 1903 for 32-bit Systems
Windows Defender on Windows 10 Version 1903 for x64-based Systems
Windows Defender on Windows 10 Version 1903 for ARM64-based Systems
Windows Defender on Windows Server, version 1903 (Server Core installation)
Windows Defender on Windows 10 Version 2004 for 32-bit Systems
Windows Defender on Windows 10 Version 2004 for ARM64-based Systems
Windows Defender on Windows 10 Version 2004 for x64-based Systems
Windows Defender on Windows Server, version 2004 (Server Core installation)
Windows Defender on Windows 10 Version 20H2 for x64-based Systems
Windows Defender on Windows 10 Version 20H2 for 32-bit Systems
Windows Defender on Windows 10 Version 20H2 for ARM64-based Systems
Windows Defender on Windows Server, version 20H2 (Server Core Installation)
Windows Defender on Windows 10 for 32-bit Systems
Windows Defender on Windows 10 for x64-based Systems
Windows Defender on Windows 10 Version 1607 for 32-bit Systems
Windows Defender on Windows 10 Version 1607 for x64-based Systems
Windows Defender on Windows Server 2016
Windows Defender on Windows Server 2016 (Server Core installation)
Windows Defender on Windows 7 for 32-bit Systems Service Pack 1
Windows Defender on Windows 7 for x64-based Systems Service Pack 1
Windows Defender on Windows 8.1 for 32-bit systems
Windows Defender on Windows 8.1 for x64-based systems
Windows Defender on Windows RT 8.1
Windows Defender on Windows Server 2008 for 32-bit Systems Service Pack 2
Windows Defender on Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
Windows Defender on Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Defender on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Windows Defender on Windows Server 2012
Windows Defender on Windows Server 2012 (Server Core installation)
Windows Defender on Windows Server 2012 R2
Windows Defender on Windows Server 2012 R2 (Server Core installation)
Vulnerability Description A remote code execution vulnerability exists in Microsoft Windows. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code on the affected system.

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 R81 / R80 / R77 / R75

  1. In the IPS tab, click Protections and find the Microsoft Defender Remote Code Execution (CVE-2021-1647) 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:  Content Protection Violation.
Attack Information:  Microsoft Defender Remote Code Execution (CVE-2021-1647)

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