Check Point Advisories

Artifex Ghostscript Command Injection (CVE-2021-3781)

Check Point Reference: CPAI-2021-1712
Date Published: 30 Apr 2023
Severity: Critical
Last Updated: Monday 08 May, 2023
Source:
Industry Reference:CVE-2021-3781
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable? Artifex Ghostscript 9.50
Artifex Ghostscript 9.52
Artifex Ghostscript 9.53.3
Artifex Ghostscript 9.54.0
Vulnerability Description A cross-site scripting vulnerability exists in Artifex Ghostscript. Successful exploitation of this vulnerability would allow remote attackers to inject arbitrary web script into 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 Artifex Ghostscript Command Injection (CVE-2021-3781) 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:  Content Protection Violation.
Attack Information:  Artifex Ghostscript Command Injection (CVE-2021-3781)

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