Check Point Advisories

PHP Zerodium Backdoor

Check Point Reference: CPAI-2022-0472
Date Published: 10 Aug 2022
Severity: High
Last Updated: Wednesday 10 August, 2022
Protection Provided by:

Security Gateway
R81, R80, R77, R75

Who is Vulnerable?
Vulnerability Description An attacker might upload a web shell backdoor to a PHP server via zerodium prefix. A successful exploitation might allow the attacker to run arbitrary code, or use the server as a bot for further attacks.

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 PHP Zerodium Backdoor 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:  PHP Zerodium Backdoor

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