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Microsoft Windows SChannel Authentication Bypass
Secunia Advisory: SA34215
Release Date: 2009-03-10
Popularity: 6,429 views

Critical:
Moderately critical
Impact: Security Bypass
Where: From remote
Solution Status: Vendor Patch

OS:Microsoft Windows 2000 Advanced Server
Microsoft Windows 2000 Datacenter Server
Microsoft Windows 2000 Professional
Microsoft Windows 2000 Server
Microsoft Windows Server 2003 Datacenter Edition
Microsoft Windows Server 2003 Enterprise Edition
Microsoft Windows Server 2003 Standard Edition
Microsoft Windows Server 2003 Web Edition
Microsoft Windows Server 2008
Microsoft Windows Storage Server 2003
Microsoft Windows Vista
Microsoft Windows XP Home Edition
Microsoft Windows XP Professional

Binary Analysis: BA693 :: Available for 1 Credit

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

Description:
A vulnerability has been reported in Microsoft Windows, which can be exploited by malicious people to bypass certain security mechanisms.

The vulnerability is caused due to insufficient validation of certain TLS (Transport Layer Security) handshake messages by the SChannel (Secure Channel) authentication component during certificate-based authentication. This can be exploited to bypass authentication using the public component of a user’s authentication credential.

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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