Check Point Advisories

Multiple PHP Servers R57shell Backdoor Command Execution

Vulnerability
Protection

Check Point Reference:	CPAI-2014-1314
Date Published:	8 Apr 2014
Severity:	High
Last Updated:	Sunday 06 April, 2014
Source:
Protection Provided by:	Security Gateway R75 and above
Who is Vulnerable?	PHP Web Servers
Vulnerability Description	A command execution vulnerability has been reported in multiple PHP servers. The vulnerability is due to the existence of a backdoor file on the PHP server within a specific library. A remote attacker can exploit this vulnerability by sending a request to the malicious backdoor file.

Protection Overview

This protection will detect and block 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, Protection tab and select the version of your choice.

Security Gateway R70 / R71 / R75 and above

In the IPS tab, click Protections and find the Multiple PHP Servers R57shell Backdoor Command Execution protection using the Search tool and Edit the protection's settings.
Install policy on all modules.

SmartView Tracker will log the following entries:

Attack Name:  Web Server Enforcement Violation.
Attack Information:  Multiple PHP Servers R57shell Backdoor Command Execution