Check Point Advisories

Internet Explorer JavaScript Integer Overflow Remote Code Execution (MS12-056; CVE-2012-2523)

Vulnerability
Protection

Check Point Reference:	CPAI-2012-341
Date Published:	14 Aug 2012
Severity:	High
Last Updated:	Thursday 21 November, 2024
Source:	CVE-2012-2523
Protection Provided by:	Security Gateway R75 R71 R70
Who is Vulnerable?	Internet Explorer 8 for Windows XP Professional x64 Edition Service Pack 2 Internet Explorer 8 for Windows Server 2003 x64 Edition Service Pack 2 Internet Explorer 8 in Windows Vista x64 Edition Service Pack 2 Internet Explorer 8 in Windows Server 2008 for x64-based Systems Service Pack 2 Internet Explorer 8 in Windows 7 for x64-based Systems Internet Explorer 8 in Windows 7 for x64-based Systems Service Pack 1 Internet Explorer 8 in Windows Server 2008 R2 for x64-based Systems Internet Explorer 8 in Windows Server 2008 R2 for x64-based Systems Service Pack 1 Internet Explorer 8 in Windows Server 2008 R2 for Itanium-based Systems Internet Explorer 8 in Windows Server 2008 R2 for Itanium-based Systems Service Pack 1 Internet Explorer 9 for Windows Vista x64 Edition Service Pack 2 Internet Explorer 9 for Windows Server 2008 for x64-based Systems Service Pack 2 Internet Explorer 9 for Windows 7 for x64-based Systems Internet Explorer 9 for Windows 7 for x64-based Systems Service Pack 1 Internet Explorer 9 for Windows Server 2008 R2 for x64-based Systems Internet Explorer 9 for Windows Server 2008 R2 for x64-based Systems Service Pack 1
Vulnerability Description	A remote code execution vulnerability has been reported in Internet Explorer.
Update/Patch Avaliable	Apply patches from: MS12-056
Vulnerability Details	The vulnerability is due to an error in the way Internet Explorer calculates the size of an object in memory during a copy operation. A remote attacker can exploit this issue by enticing a target user to open a specially crafted web page. Successful exploitation could allow an attacker to execute arbitrary code in the security context of the logged-on user.

Protection Overview

This protection will detect and block attempts to open a malicious web page.

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 JavaScript Integer Overflow Remote Code Execution (MS12-056) 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 JavaScript Integer Overflow Remote Code Execution (MS12-056)