Vulnerability Report

CVE-2009-0085

Title: Microsoft Windows 2000 Auth Bypass

Auth Bypass

Proof Of Concept

No public PoC currently indexed for CVE-2009-0085.

CWE Category CWE-287
Published Date Mar 10, 2009
Modified Date Jun 16, 2026
Exploit Status Not Found
Score 7.1 CVSS v2.0
Exploit Probability (EPSS)
15.19%

Vulnerability Summary

CVE-2009-0085: 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."

Impacted Vendors

M
microsoft 5

Reference Links

http://osvdb.org/52521 http://secunia.com/advisories/34215 http://www.securitytracker.com/id?1021828 http://www.us-cert.gov/cas/techalerts/TA09-069A.html http://www.vupen.com/english/advisories/2009/0660 https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-007 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6011 http://osvdb.org/52521 http://secunia.com/advisories/34215 http://www.securitytracker.com/id?1021828 http://www.us-cert.gov/cas/techalerts/TA09-069A.html http://www.vupen.com/english/advisories/2009/0660 https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-007 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6011
CVSS v2.0
Source Entity [email protected]
Severity HIGH
7.1
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:M/Au:N/C:N/I:C/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2009-0085 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A
Complexity N/A
Privileges N/A
Interaction NONE
CVSS Vector String AV:N/AC:M/Au:N/C:N/I:C/A:N

Affected Stack

No specific products linked.