Public exploits available
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An authenticated remote code execution vulnerability exists in the way that Microsoft Server Message Block (SMB) Protocol software handles specially crafted SMB packets. An attacker could exploit the vulnerability by sending a specially crafted network message to a system running the Server service as an authenticated user. While an attacker who successfully exploited this vulnerability could take complete control of the affected system, attempts to exploit this vulnerability will most probably result in a Denial of Service condition.
An attacker who successfully exploited this vulnerability could take complete control of an affected system.
Technical details (analysis)
The vulnerability is caused by the Microsoft Server Message Block (SMB) implementation improperly validating fields in a malformed SMB request. Microsoft Server Message Block (SMB) Protocol is a Microsoft network file sharing protocol used in Microsoft Windows. An attacker could try to exploit the vulnerability by creating a specially crafted SMB packet and sending the packet to an affected system.
Microsoft Windows 2000 Service Pack 4
Windows XP Service Pack 2 and Windows XP Service Pack 3
Windows XP Professional x64 Edition Service Pack 2
Windows Server 2003 Service Pack 2
Windows Server 2003 x64 Edition Service Pack 2
Windows Server 2003 with SP2 for Itanium-based Systems
Windows Vista, Windows Vista Service Pack 1, and Windows Vista Service Pack 2
Windows Vista x64 Edition, Windows Vista x64 Edition Service Pack 1, and Windows Vista x64 Edition Service Pack 2
Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2*
Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2*
Windows 7 for 32-bit Systems
Windows 7 for x64-based Systems
Windows Server 2008 R2 for x64-based Systems*
Windows Server 2008 R2 for Itanium-based Systems
All applications not on the affected list.
Release Date: 2010-02-09T13:54:28
Known false positives
No known false positives at this time.
Disable SMB v2
Block TCP ports 139 and 445 at the firewall