Check Point Advisories

Internet Explorer DHTML Object Memory Corruption (MS05-020) - Ver2 (CVE-2005-0553)

Check Point Reference: CPAI-2005-225
Date Published: 26 Mar 2015
Severity: Medium
Last Updated: Thursday 26 March, 2015
Source:
Industry Reference:CVE-2005-0553
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description The Microsoft Internet Explorer application is primarily used for tasks related to browsing the web, such as displaying HTML encoded pages, downloading files, etc. This application has a built in functionality to interpret JavaScript and VBScript code. It is also capable of using the Document Object Model (DOM) objects, in particular by providing access to them through JavaScript or VBScript. A vulnerability exists in Microsoft Internet Explorer. The vulnerability is caused by a race condition in processing of DHTML objects such as the Comment object. This vulnerability can be exploited to execute arbitrary code on the target system with the privileges of the currently logged in user. In an attack scenario, where arbitrary code is injected and executed on the target machine, the behavior of the target is dependent on the intention of the malicious code. The affected Internet Explorer application will become unresponsive as a result of a successful code injection attack. In an attack where code injection is not executed successfully, the vulnerable application may terminate.

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 DHTML Object Memory Corruption (MS05-020) - Ver2 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:  Internet Explorer DHTML Object Memory Corruption (MS05-020) - Ver2

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