Check Point Advisories

Microsoft HTTP.sys Denial of Service (CVE-2022-35748)

Vulnerability
Protection

Check Point Reference:	CPAI-2022-0480
Date Published:	9 Aug 2022
Severity:	High
Last Updated:	Tuesday 09 August, 2022
Source:	Microsoft CVE-2022-35748
Industry Reference:	CVE-2022-35748
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Windows Server 2019 Windows Server 2019 (Server Core installation) Windows Server 2022 Windows Server 2022 (Server Core installation) Windows Server, version 20H2 (Server Core Installation) Windows Server 2016 Windows Server 2016 (Server Core installation) Windows Server 2012 Windows Server 2012 (Server Core installation) Windows Server 2012 R2 Windows Server 2012 R2 (Server Core installation)
Vulnerability Description	A denial-of-service vulnerability exists in Microsoft Windows. Successful exploitation of this vulnerability would allow a remote attacker to create a denial of service condition 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 HTTP.sys Denial of Service (CVE-2022-35748) 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 HTTP.sys Denial of Service (CVE-2022-35748)