Check Point Advisories

Internet Explorer Clone Object Reference Memory Corruption (MS07-069; CVE-2007-3903)

Check Point Reference: CPAI-2007-362
Date Published: 1 Oct 2009
Severity: High
Last Updated: Thursday 01 October, 2009
Source:
Industry Reference:CVE-2007-3903
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description Microsoft Internet Explorer (IE) is a web browser application that is capable of rendering both static and dynamic web content. The application is primarily used for tasks related to web browsing, such as displaying HTML encoded pages, downloading files, etc. A memory corruption vulnerability exists in Microsoft Internet Explorer. The vulnerability is due to the way Internet Explorer handles unexpected method calls to HTML objects. Remote attackers can exploit this vulnerability by persuading target users to visit a specially crafted web page. Successful exploitation may allow the attacker to execute arbitrary code on the vulnerable client system, in the context of the logged in user. An attack targeting this vulnerability can result in the injection and execution of arbitrary code. If code execution is successful, the behaviour of the target will depend on the intention of the attacker. Any injected code will be executed within the security context of the currently logged in user. In the case of an unsuccessful code execution attack, Internet Explorer may 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

  1. In the IPS tab, click Protections and find the Internet Explorer Clone Object Reference Memory Corruption (MS07-069) 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 Client Enforcement Violation.
Attack Information:  Microsoft Internet Explorer clone object reference memory corruption (MS07-069)

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