Check Point Advisories

ISC BIND DNS Server Denial of Service (CVE-2020-8620)

Check Point Reference: CPAI-2020-1063
Date Published: 27 Dec 2020
Severity: High
Last Updated: 27 Dec 2020
Industry Reference:CVE-2020-8620
Protection Provided by:

Security Gateway
R80, R77, R75

Who is Vulnerable? ISC BIND DNS Server 9.15.6 - 9.16.5
ISC BIND DNS Server 9.17.0 - 9.17.3
Vulnerability Description A denial-of-service vulnerability exists in ISC BIND DNS Server. 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 R80 / R77 / R75

  1. In the IPS tab, click Protections and find the ISC BIND DNS Server Denial of Service (CVE-2020-8620) 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:  Application Servers Protection Violation.
Attack Information:  ISC BIND DNS Server Denial of Service (CVE-2020-8620)

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