Description
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."
References (7)
Core 7
Core References
Vendor Advisory vendor-advisory
x_refsource_ms
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-007
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id?1021828
US Government Resource third-party-advisory
x_refsource_cert
http://www.us-cert.gov/cas/techalerts/TA09-069A.html
Third Party Advisory vdb-entry
x_refsource_vupen
http://www.vupen.com/english/advisories/2009/0660
Third Party Advisory, VDB Entry vdb-entry
signature
x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6011
Third Party Advisory third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/34215
Third Party Advisory, VDB Entry vdb-entry
x_refsource_osvdb
http://osvdb.org/52521
Scores
EPSS
0.1519
EPSS Percentile
96.3%
Details
CWE
CWE-287
Status
published
Products (6)
microsoft/windows_2000
microsoft/windows_server_2003
(4 CPE variants)
microsoft/windows_server_2008
(3 CPE variants)
microsoft/windows_vista
(2 CPE variants)
microsoft/windows_vista
gold
microsoft/windows_xp
(4 CPE variants)
Published
Mar 10, 2009
Tracked Since
Feb 18, 2026