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Vulnerability:Win/SMB.MRXSMB.RCE!CVE-2010-0016

Severity rating
Critical

Class/Type
Vulnerability

Discovered date
2010-02-09T00:00:00

Attack vector
Remote

Authentication required
No

Public exploits available
No

Signature detection
Medium



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Description

An unauthenticated remote code execution vulnerability exists in the way that Microsoft Server Message Block (SMB) Protocol software handles specially crafted SMB responses.



Impact

An attacker who successfully exploited this vulnerability could take complete control of an affected system. Most attempts to exploit this vulnerability will cause an affected system to stop responding and restart.



Technical details (analysis)

The vulnerability is caused by the Microsoft Server Message Block (SMB) client implementation improperly validating fields in the SMB response. This could lead to a pool corruption issue resulting in code execution with system level privileges.The vulnerability is caused by the Microsoft Server Message Block (SMB) client implementation improperly validating fields in the SMB response. This could lead to a pool corruption issue resulting in code execution with system level privileges. An attacker could host a malicious SMB server that is designed to exploit this vulnerability and then convince a user to initiate an SMB connection with it. Additionally, an attacker on the local network could perform a man-in-the-middle attack to respond to a legitimate SMB request with a malformed SMB response.



Affected software

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 and Windows Vista Service Pack 1
Windows Vista Service Pack 2
Windows Vista x64 Edition and Windows Vista x64 Edition Service Pack 1
Windows Vista x64 Edition Service Pack 2
Windows Server 2008 for 32-bit Systems
Windows Server 2008 for 32-bit Systems Service Pack 2
Windows Server 2008 for x64-based Systems
Windows Server 2008 for x64-based Systems Service Pack 2
Windows Server 2008 for Itanium-based Systems
Windows Server 2008 for Itanium-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



Non-affected software

All applications not on the affected list.



References




Solutions




NIS signature

Name: Vulnerability:Win/SMB.MRXSMB.RCE!CVE-2010-0016
Release Date: 2010-02-09T00:00:00



Known false positives

No known false positives at this time.



Work-arounds

Block TCP ports 139 and 445 at the firewall