Check Point Advisories

Microsoft Win32k Elevation of Privilege (CVE-2022-21887)

Vulnerability
Protection

Check Point Reference:	CPAI-2022-0006
Date Published:	11 Jan 2022
Severity:	High
Last Updated:	Tuesday 11 January, 2022
Source:	Microsoft CVE-2022-21887
Industry Reference:	CVE-2022-21887
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Windows 11 for x64-based Systems Windows 11 for ARM64-based Systems
Vulnerability Description	An elevation of privilege 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

In the IPS tab, click Protections and find the Microsoft Win32k Elevation of Privilege (CVE-2022-21887) 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 Win32k Elevation of Privilege (CVE-2022-21887)