Check Point Advisories

ESF pfSense system_groupmanager.php Command Injection

Check Point Reference: CPAI-2018-0232
Date Published: 16 Jan 2018
Severity: High
Last Updated: Monday 07 May, 2018
Source:
Protection Provided by:

Security Gateway
R81, R80, R77, R75

Who is Vulnerable? pfSense
Vulnerability Description A command injection vulnerability exists in the web console of the ESF pfSense firewall. The vulnerability is due to a failure on part of the application to properly parse input supplied to the members parameter in the system_groupmanager.php script.

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 ESF pfSense system_groupmanager.php Command Injection 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:  ESF pfSense system_groupmanager.php Command Injection

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