CVE-2009-0085

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Summary

CVECVE-2009-0085
StatePUBLISHED
Assignermicrosoft
Source PriorityCVE Program / NVD first with legacy fallback
Published2009-03-10 20:30:06 UTC
Updated2026-04-23 00:35:47 UTC
DescriptionThe 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."

Risk And Classification

Primary CVSS: v2.0 7.1 from [email protected]

AV:N/AC:M/Au:N/C:N/I:C/A:N

Problem Types: CWE-287 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
Complete
Availability
None

AV:N/AC:M/Au:N/C:N/I:C/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Microsoft Windows 2000 All sp4 All All
Operating System Microsoft Windows Server 2003 All All All All
Operating System Microsoft Windows Server 2003 All sp1 All All
Operating System Microsoft Windows Server 2003 All sp1 itanium All
Operating System Microsoft Windows Server 2003 All sp2 All All
Operating System Microsoft Windows Server 2008 All All All All
Operating System Microsoft Windows Server 2008 All All itanium All
Operating System Microsoft Windows Server 2008 All All x64 All
Operating System Microsoft Windows Vista All All x64 All
Operating System Microsoft Windows Vista All sp1 All All
Operating System Microsoft Windows Vista gold All All All
Operating System Microsoft Windows Xp All All x64 All
Operating System Microsoft Windows Xp All sp2 All All
Operating System Microsoft Windows Xp All sp2 x64 All
Operating System Microsoft Windows Xp All sp3 All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
US-CERT Technical Cyber Security Alert TA09-069A -- Microsoft Updates for Multiple Vulnerabilities af854a3a-2127-422b-91ae-364da2661108 www.us-cert.gov US Government Resource
Microsoft Security Bulletin MS09-007 - Important | Microsoft Docs af854a3a-2127-422b-91ae-364da2661108 docs.microsoft.com
Windows SChannel TLS Handshake Authentication Flaw Lets Certain Remote Users Spoof the System - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
osvdb.org/52521 af854a3a-2127-422b-91ae-364da2661108 osvdb.org
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
About Secunia Research | Flexera af854a3a-2127-422b-91ae-364da2661108 secunia.com
Repository / Oval Repository af854a3a-2127-422b-91ae-364da2661108 oval.cisecurity.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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