Check Point Advisories

Internet Explorer CSS Strings Parsing Memory Corruption (MS07-045; CVE-2007-0943)

Check Point Reference: CPAI-2007-307
Date Published: 25 Feb 2010
Severity: High
Last Updated: Monday 12 May, 2014
Source:
Industry Reference:CVE-2007-0943
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description Microsoft Internet Explorer (IE) is the most widely used web browser application. The browser is capable of processing HTML, images, scripting languages, and various other popular Internet specifications. The application is also capable of using Cascading Style Sheets (CSS). A remote code execution vulnerability exists in Microsoft Internet Explorer. The flaw is caused by an improper handling of malformed Cascading Style Sheet (CSS) content. A remote attacker can exploit this vulnerability by enticing the target user to open a crafted web page, potentially causing arbitrary code to be injected and executed in the security context of the current user. In case of an attack where code injection and execution is successful, the behavior 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. In case of an attack where code injection is not successful, 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 CSS Strings Parsing Memory Corruption (MS07-045) 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 CSS strings parsing memory corruption (MS07-045)

×
  Feedback
This website uses cookies for its functionality and for analytics and marketing purposes. By continuing to use this website, you agree to the use of cookies. For more information, please read our Cookies Notice.
OK