Check Point Advisories

Microsoft Windows Graphics Rendering Engine Code Execution (MS07-046; CVE-2007-3034)

Vulnerability
Protection

Check Point Reference:	CPAI-2007-308
Date Published:	20 Oct 2009
Severity:	High
Last Updated:	Sunday 29 December, 2013
Source:
Industry Reference:	CVE-2007-3034
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	The Windows Metafile (WMF) is a standard Windows image file format. It consists of a set of graphics functions and parameters that describe the steps required to render an image. WMF is a 16-bit format that can contain both vector and bitmap information. A WMF file contains a main header, followed by one or more records of data. Each record is a binary-encoded function call to the Microsoft Windows Graphics Device Interface (GDI). The data from each record is passed to the respective GDI functions as parameters in order to render the desired image. An integer overflow vulnerability exists in the Microsoft Windows graphics rendering engine. The vulnerability is a result of improper range validation when certain GDI functions are called to process malformed image data. A remote attacker can exploit this flaw to inject and execute within the security context of the currently logged in user. In an attack case where code injection is not successful, the application that calls the vulnerable GDI function will terminate immediately. In a more sophisticated attack where code injection is successful, the behaviour of the target is entirely dependent on the intended function of the injected code. The code in such a case would execute within the security context of the current user.

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 Microsoft Windows Graphics Rendering Engine Code Execution (MS07-046) 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: Content Protection Violation.
Attack Information: Microsoft Windows Graphics Rendering Engine code execution (MS07-046)