Check Point Advisories

Internet Explorer Data Stream Handling Memory Corruption (MS08-024; CVE-2008-1085)

Check Point Reference: CPAI-2008-285
Date Published: 4 Oct 2009
Severity: Critical
Last Updated: 15 Feb 2017
Industry Reference:CVE-2008-1085
Protection Provided by:

Security Gateway
R80, R77, R76, R75

Who is Vulnerable? Microsoft Internet Explorer 5.01
Microsoft Internet Explorer 6
Microsoft Internet Explorer 7
Vulnerability Description Microsoft Internet Explorer (IE) is a web browser application that supports a wide range of WWW standard protocols and content formats. Besides HTML page and graphic images, various non-HTML content can be downloaded using IE. These contents, however, cannot be processed natively by IE. A set of functions exposed by the library URLMON.DLL are used to determine to proper application that can handle a piece of digital content.A memory corruption vulnerability exists in Microsoft Internet Explorer. The vulnerability is due to the way Internet Explorer handles certain non-html and html content in the data streams combinations. 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 / R76 / R75

  1. In the IPS tab, click Protections and find the Internet Explorer Data Stream Handling Memory Corruption (MS08-024) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all modules.

This protection's log will contain the following information:

Attack Name:  Web Client Enforcement Violation
Attack Information:  Microsoft Internet Explorer data stream handling memory corruption (MS08-024)

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