Check Point Advisories

Internet Explorer mdsauth.dll Arbitrary File Overwrite - Ver2 (CVE-2007-2221)

Vulnerability
Protection

Check Point Reference:	CPAI-2014-0086
Date Published:	7 Jan 2014
Severity:	Critical
Last Updated:	Tuesday 07 January, 2014
Source:
Industry Reference:	CVE-2007-2221
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	Microsoft Internet Explorer is the most widely used Internet browser. Multiple remote code execution vulnerabilities have been reported in Microsoft Internet Explorer. The vulnerabilities are due to several memory corruption errors in Microsoft Internet Explorer when instantiating the vulnerable COM objects as ActiveX Controls, when accessing a object that was already deleted, when handling a property method and when the 'mdsauth.dll' COM object within Microsoft Internet Explorer allows the overwrite of arbitrary files. Successful exploitation of these issues allows execution of arbitrary code on the vulnerable system.

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 Internet Explorer mdsauth.dll Arbitrary File Overwrite - Ver2 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 Client Enforcement Violation.
Attack Information: Internet Explorer mdsauth.dll Arbitrary File Overwrite - Ver2