Check Point Advisories

Microsoft SharePoint Remote Code Execution (CVE-2020-17121)

Check Point Reference: CPAI-2020-1253
Date Published: 8 Dec 2020
Severity: Critical
Last Updated: Thursday 11 March, 2021
Source: Microsoft CVE-2020-17121
Industry Reference:CVE-2020-17121
Protection Provided by:

Security Gateway
R81, R80, R77, R75

Who is Vulnerable? Microsoft SharePoint Foundation 2013 Service Pack 1
Microsoft SharePoint Foundation 2010 Service Pack 2
Microsoft SharePoint Server 2019
Microsoft SharePoint Enterprise Server 2016
Vulnerability Description A remote code execution vulnerability exists in Microsoft SharePoint. 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 SharePoint Remote Code Execution (CVE-2020-17121) 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 SharePoint Remote Code Execution (CVE-2020-17121)

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