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CVE Number Vulnerability Product Severity Date
MS09-007 Vulnerability in SChannel Could Allow Spoofing (960225) Microsoft Windows Low 11-03-2009

Technical Information

Brief overview of the risk:
This security update resolves a privately reported vulnerability in the Secure Channel (SChannel) security package in Windows. The vulnerability could allow spoofing if an attacker gains access to the certificate used by the end user for authentication.
Detailed Information on the risk:
A spoofing vulnerability exists in the Microsoft Windows SChannel authentication component when using certificate based authentication. An attacker who successfully exploited this vulnerability would be able to authenticate to a server using only an authorized user’s digital certificate and without the associated private key. Further information on this exploit is available at : MS09-007

Affected Software

Microsoft Windows 2000 Server Service Pack 4
Microsoft Windows Server 2003 Service Pack 1
Microsoft Windows Server 2003 Service Pack 2
Microsoft Windows Server 2003 with SP1 for Itanium-based Systems
Microsoft Windows Server 2003 with SP2 for Itanium-based Systems
Microsoft Windows Server 2003 x64 Edition
Microsoft Windows Server 2003 x64 Edition Service Pack 2
Microsoft Windows XP Professional x64 Edition
Microsoft Windows XP Professional x64 Edition Service Pack 2
Microsoft Windows XP Service Pack 2
Microsoft Windows XP Service Pack 3
Windows Server 2008 for 32-bit Systems
Windows Server 2008 for Itanium-based Systems
Windows Server 2008 for x64-based Systems
Windows Vista
Windows Vista Service Pack 1
Windows Vista x64 Edition
Windows Vista x64 Edition Service Pack 1