Check Point Advisories

Microsoft Office Visio UML Parsing Use After Free (MS11-060; CVE-2011-1972)

Vulnerability
Protection

Check Point Reference:	CPAI-2011-355
Date Published:	9 Aug 2011
Severity:	High
Last Updated:	Tuesday 06 December, 2011
Source:
Industry Reference:	CVE-2011-1972
Protection Provided by:	Security Gateway R81, R80, R77, R75, R71, R70, R65
Who is Vulnerable?
Vulnerability Description	Microsoft Visio is a diagram creation software for Microsoft Windows. A remote code execution vulnerability has been reported in Microsoft Office Visio. The vulnerability is due to the improper way in which the application validates objects in memory when parsing specially crafted Visio files. An attacker can exploit this vulnerability by enticing an unsuspecting user to open a specially crafted Visio file with an affected version of the application. Successful exploitation of this vulnerability will allow an attacker to take complete control of the affected system.

Protection Overview

This protection will detect and block attempts to transfer malicious Visio files over HTTP.

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 / R71 / R70 / R65

In the IPS tab, click Protections and find the Microsoft Office Visio UML Parsing Use After Free (MS11-060) 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 Office Visio UML parsing use after free (MS11-060)