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Check Point Advisories

PHP Exif Header Parsing Integer Overflow (CVE-2011-4566)

Check Point Reference: CPAI-2012-335
Date Published: 27 Aug 2012
Severity: High
Last Updated: 14 Feb 2016
Source:
Industry Reference:CVE-2011-4566
Protection Provided by:

Security Gateway
R80, R77, R75

Who is Vulnerable?
Vulnerability Description An integer overflow vulnerability has been reported in PHP. The vulnerability is due to lack of EXIF data validation. A Remote attacker could exploit this vulnerability by uploading a specially crafted image to the target server. Successful exploitation could result in sensitive information disclosure or a denial of service condition.

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

  1. In the IPS tab, click Protections and find the PHP Exif Header Parsing Integer Overflow 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 Exif header parsing integer overflow

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