Check Point Advisories

Google Chrome Media Cross Origin Bypass (CVE-2020-6420)

Check Point Reference: CPAI-2020-0994
Date Published: 14 Oct 2020
Severity: High
Last Updated: 14 Oct 2020
Industry Reference:CVE-2020-6420
Protection Provided by:

Security Gateway
R80, R77, R75

Who is Vulnerable? Google Chrome prior to 80.0.3987.132
Vulnerability Description A cross origin bypass vulnerability exists in Google chrome. Successful exploitation of this vulnerability can result in information disclosure and execution of active content outside the prescribed context.

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 Google Chrome Media Cross Origin Bypass (CVE-2020-6420) 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:  Google Chrome Media Cross Origin Bypass (CVE-2020-6420)

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