Check Point Advisories

Internet Explorer OnReadyStateChange Remote Code Execution (MS12-023; CVE-2012-0170)

Vulnerability
Protection

Check Point Reference:	CPAI-2012-124
Date Published:	10 Apr 2012
Severity:	Critical
Last Updated:	Monday 25 November, 2024
Source:	CVE-2012-0170
Protection Provided by:	Security Gateway R70 R71 R75
Who is Vulnerable?	Internet Explorer 6 for Windows XP Service Pack 3 Internet Explorer 6 for Windows XP Professional x64 Edition Service Pack 2 Internet Explorer 6 for Windows Server 2003 Service Pack 2 Internet Explorer 6 for Windows Server 2003 x64 Edition Service Pack 2 Internet Explorer 6 for Windows Server 2003 with SP2 for Itanium-based Systems Internet Explorer 7 Internet Explorer 7 for Windows XP Service Pack 3 Internet Explorer 7 for Windows XP Professional x64 Edition Service Pack 2 Internet Explorer 7 for Windows Server 2003 Service Pack 2 Internet Explorer 7 for Windows Server 2003 x64 Edition Service Pack 2 Internet Explorer 7 for Windows Server 2003 with SP2 for Itanium-based Systems Internet Explorer 7 in Windows Vista Service Pack 2 Internet Explorer 7 in Windows Vista x64 Edition Service Pack 2 Internet Explorer 7 in Windows Server 2008 for 32-bit Systems Service Pack 2 Internet Explorer 7 in Windows Server 2008 for x64-based Systems Service Pack 2 Internet Explorer 7 Windows Server 2008 for Itanium-based Systems Service Pack 2
Vulnerability Description	A remote code execution vulnerability has been reported in Internet Explorer.
Update/Patch Avaliable	Apply patches from: MS12-023
Vulnerability Details	The vulnerability is due to an error in the way Internet Explorer accesses an object that has been deleted. A remote attacker could trigger this vulnerability by enticing an unsuspecting victim to open a specially crafted web page. Successful exploitation may cause a memory corruption in a way that will allow an attacker to execute arbitrary code on an affected system, in the security context of the logged on user.

Protection Overview

This protection will detect and block attempts to open a malicious HTML file.

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, Protection tab and select the version of your choice.

Security Gateway R75 / R71 / R70

In the IPS tab, click Protections and find the Internet Explorer OnReadyStateChange Remote Code Execution (MS12-023) protection using the Search tool and Edit the protection's settings.
Install policy on all modules.

SmartView Tracker will log the following entries:
Attack Name: Web Client Enforcement Violation
Attack Information: Internet Explorer OnReadyStateChange remote code execution (MS12-023)