Check Point Advisories

Ruby Server Side Template Injection

Vulnerability
Protection

Check Point Reference:	CPAI-2021-0140
Date Published:	18 Apr 2021
Severity:	High
Last Updated:	Sunday 18 April, 2021
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	A remote attacker can inject malicious commands into a template engine. Successful exploitation could result in the execution of arbitrary code in the affected web server.

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

In the IPS tab, click Protections and find the Ruby Server Side Template Injection protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Web Server Enforcement Violation.
Attack Information: Ruby Server Side Template Injection