Check Point Advisories

Microsoft Teams Remote Code Execution

Vulnerability
Protection

Check Point Reference:	CPAI-2020-1290
Date Published:	9 Dec 2020
Severity:	High
Last Updated:	Wednesday 09 December, 2020
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Microsoft Teams for Windows v1.3.00.21759 Microsoft Teams for Linux v1.3.00.16851 Microsoft Teams for macOS v1.3.00.23764
Vulnerability Description	A remote code execution vulnerability exists in Microsoft Teams. 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 R80 / R77 / R75

In the IPS tab, click Protections and find the Microsoft Teams Remote Code Execution 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: Windows SMB Protection Violation.
Attack Information: Microsoft Teams Remote Code Execution