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MS.JScript.Keyword.Override.Code.Execution

Release Date

Sep 08, 2009

Severity

critical

Impact

System Compromise: Remote attackers can gain control of vulnerable systems

Description

This indicates an attack attempt against a code execution vulnerability in Microsoft Windows.

The vulnerability is caused by an error when JavaScript engine handles a html including malicious JavaScript codes overriding keywords. It allows a remote attacker to execute arbitrary code via sending a crafted web page

Affected Products

Microsoft Windows 2000 Service Pack 4
Windows XP Service Pack 2
Windows XP Service Pack 2
Windows XP Service Pack 3
Windows XP Service Pack 2 and Windows XP Service Pack 3
Windows XP Professional x64 Edition Service Pack 2
Windows Server 2003 Service Pack 2
Windows Server 2003 x64 Edition Service Pack 2
Windows Server 2003 with SP2 for Itanium-based Systems
Windows Vista, Windows Vista Service Pack 1, and Windows Vista Service Pack 2
Windows Vista x64 Edition, Windows Vista x64 Edition Service Pack 1, and Windows Vista x64 Edition Service Pack 2
Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2
Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2
Windows Server 2008 for Itanium-based Systems and Windows Server 2008 for Itanium-based Systems Service Pack 2

Recommended Actions

Refer to the vendor's web site for suggested workaround.
http://www.microsoft.com/technet/security/Bulletin/ms09-045.mspx

Coverage

IPS
VCM

Common Vulnerabilities and Exposures (CVE)

CVE-2009-1920

Reference/s

http://technet.microsoft.com/en-us/security/bulletin/ms09-045.mspx (MS-ID)

Reference: VID-17709