Check Point Advisories

Microsoft Internet Explorer Memory Corruption (CVE-2020-17053)

Check Point Reference: CPAI-2020-1159
Date Published: 10 Nov 2020
Severity: Critical
Last Updated: Tuesday 10 November, 2020
Source: Microsoft CVE-2020-17053
Industry Reference:CVE-2020-17053
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable? Internet Explorer 11 on Windows 10 Version 1803 for 32-bit Systems
Internet Explorer 11 on Windows 10 Version 1803 for x64-based Systems
Internet Explorer 11 on Windows 10 Version 1803 for ARM64-based Systems
Internet Explorer 11 on Windows 10 Version 1809 for 32-bit Systems
Internet Explorer 11 on Windows 10 Version 1809 for x64-based Systems
Internet Explorer 11 on Windows 10 Version 1809 for ARM64-based Systems
Internet Explorer 11 on Windows Server 2019
Internet Explorer 11 on Windows 10 Version 1909 for 32-bit Systems
Internet Explorer 11 on Windows 10 Version 1909 for x64-based Systems
Internet Explorer 11 on Windows 10 Version 1909 for ARM64-based Systems
Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems
Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systems
Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems
Internet Explorer 11 on Windows 10 Version 2004 for 32-bit Systems
Internet Explorer 11 on Windows 10 Version 2004 for ARM64-based Systems
Internet Explorer 11 on Windows 10 Version 2004 for x64-based Systems
Internet Explorer 11 on Windows 10 Version 20H2 for ARM64-based Systems
Internet Explorer 11 on Windows 10 Version 20H2 for x64-based Systems
Internet Explorer 11 on Windows 10 Version 20H2 for 32-bit Systems
Vulnerability Description A memory corruption 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 R80 / R77 / R75

  1. In the IPS tab, click Protections and find the Microsoft Internet Explorer Memory Corruption (CVE-2020-17053) 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:  Web Client Enforcement Violation.
Attack Information:  Microsoft Internet Explorer Memory Corruption (CVE-2020-17053)

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