Check Point Advisories

Microsoft SharePoint Server Remote Code Execution (CVE-2021-40487)

Vulnerability
Protection

Check Point Reference:	CPAI-2021-0770
Date Published:	13 Oct 2021
Severity:	High
Last Updated:	Wednesday 13 October, 2021
Source:	Microsoft CVE-2021-40487
Industry Reference:	CVE-2021-40487
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Microsoft SharePoint Enterprise Server 2016 Microsoft SharePoint Server 2019 Microsoft SharePoint Foundation 2013 Service Pack 1
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

In the IPS tab, click Protections and find the Microsoft SharePoint Server Remote Code Execution (CVE-2021-40487) 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: Content Protection Violation.
Attack Information: Microsoft SharePoint Server Remote Code Execution (CVE-2021-40487)