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Last updated: 10/25/2014 2:32:55 PM

CVE Publication rate: 50.77

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National Cyber Awareness System

Vulnerability Summary for CVE-2009-0085

Original release date: 03/10/2009
Last revised: 08/21/2010
Source: US-CERT/NIST

Overview

The Secure Channel (aka SChannel) authentication component in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and SP2, Vista Gold and SP1, and Server 2008, when certificate authentication is used, does not properly validate the client's key exchange data in Transport Layer Security (TLS) handshake messages, which allows remote attackers to spoof authentication by crafting a TLS packet based on knowledge of the certificate but not the private key, aka "SChannel Spoofing Vulnerability."

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 7.1 (HIGH) (AV:N/AC:M/Au:N/C:N/I:C/A:N) (legend)
Impact Subscore: 6.9
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized modification

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External Source: OVAL
Name: oval:org.mitre.oval:def:6011
US-CERT Vulnerability Note: CERT
Name: TA09-069A
External Source: SECTRACK
Name: 1021828
External Source: SECUNIA
Name: 34215
External Source: OSVDB
Name: 52521
External Source: VUPEN
Name: ADV-2009-0660
External Source: MS
Name: MS09-007
Type: Advisory; Patch Information

References to Check Content

Identifier: oval:org.mitre.oval:def:6011
Check System: http://oval.mitre.org/XMLSchema/oval-definitions-5

Technical Details

Vulnerability Type (View All)