CVE Vulnerabilities

CVE-2009-0085

Improper Authentication

Published: Mar 10, 2009 | Modified: Apr 09, 2025
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
7.1 HIGH
AV:N/AC:M/Au:N/C:N/I:C/A:N
RedHat/V2
RedHat/V3
Ubuntu
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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 clients 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.

Weakness

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Affected Software

NameVendorStart VersionEnd Version
Windows_2000Microsoft**
Windows_server_2003Microsoft**
Windows_server_2008Microsoft**
Windows_vistaMicrosoft**
Windows_vistaMicrosoftgold (including)gold (including)
Windows_xpMicrosoft**

Potential Mitigations

References