Check Point Advisories

Grav CMS Admin Plugin Remote Code Execution (CVE-2021-21425)

Check Point Reference: CPAI-2021-1847
Date Published: 10 Sep 2023
Severity: Critical
Last Updated: Sunday 10 September, 2023
Source:
Industry Reference:CVE-2021-21425
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable? Grav CMS Admin plugin up to and excluding 1.10.8
Vulnerability Description A remote code execution vulnerability exists in Grav CMS Admin plugin. 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

  1. In the IPS tab, click Protections and find the Grav CMS Admin Plugin Remote Code Execution (CVE-2021-21425) 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 Server Enforcement Violation.
Attack Information:  Grav CMS Admin Plugin Remote Code Execution (CVE-2021-21425)

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