Vulnerability Monitor

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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."

Published

2009-03-10T20:30:06.530

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.1 (HIGH)

CVSSv2 Vector

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

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: COMPLETE
  • Availability Impact: NONE
Exploitability Score

8.6

Impact Score

6.9

Weaknesses
  • Type: Primary
    CWE-287
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System microsoft windows_2000 * Yes
Operating System microsoft windows_server_2003 * Yes
Operating System microsoft windows_server_2003 * Yes
Operating System microsoft windows_server_2003 * Yes
Operating System microsoft windows_server_2003 * Yes
Operating System microsoft windows_server_2008 * Yes
Operating System microsoft windows_server_2008 * Yes
Operating System microsoft windows_server_2008 * Yes
Operating System microsoft windows_vista * Yes
Operating System microsoft windows_vista * Yes
Operating System microsoft windows_vista gold Yes
Operating System microsoft windows_xp * Yes
Operating System microsoft windows_xp * Yes
Operating System microsoft windows_xp * Yes
Operating System microsoft windows_xp * Yes
References