Check Point Advisories

PHP TAR File Parsing Uninitialized Reference (CVE-2016-4343)

Vulnerability
Protection

Check Point Reference:	CPAI-2016-0721
Date Published:	24 Aug 2016
Severity:	Medium
Last Updated:	Tuesday 30 August, 2016
Source:	PHP Group 71331
Industry Reference:	CVE-2016-4343
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	PHP Group PHP prior to 5.5.36 PHP Group PHP prior to 5.6.22 PHP Group PHP prior to 7.0.7
Vulnerability Description	An uninitialized reference vulnerability exists in PHP. A remote attacker can exploit this vulnerability by uploading a crafted TAR file to a vulnerable PHP application. A successful attack will result in remote code execution under the context of the service running PHP. Unsuccessful exploitation will cause the web application to terminate abnormally.

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, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75

In the IPS tab, click Protections and find the PHP TAR File Parsing Uninitialized Reference 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: PHP TAR File Parsing Uninitialized Reference