National Cyber-Alert System

Vulnerability Summary for CVE-2009-3103

Overview

Array index error in the SMBv2 protocol implementation in srv2.sys in Microsoft Windows Vista Gold, SP1, and SP2, Windows Server 2008 Gold and SP2, and Windows 7 RC allows remote attackers to execute arbitrary code or cause a denial of service (system crash) via an & (ampersand) character in a Process ID High header field in a NEGOTIATE PROTOCOL REQUEST packet, which triggers an attempted dereference of an out-of-bounds memory location, aka "SMBv2 Negotiation Vulnerability." NOTE: some of these details are obtained from third party information.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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US-CERT Technical Alert: TA09-286A

Name: TA09-286A

Hyperlink:http://www.us-cert.gov/cas/techalerts/TA09-286A.html

External Source: BID

Name: 36299

Hyperlink:http://www.securityfocus.com/bid/36299

External Source: MS

Name: MS09-050

Hyperlink:http://www.microsoft.com/technet/security/Bulletin/MS09-050.mspx

External Source: SECUNIA

Name: 36623

Type: Advisory

Hyperlink:http://secunia.com/advisories/36623

External Source: MISC

Name: http://isc.sans.org/diary.html?storyid=7093

Hyperlink:http://isc.sans.org/diary.html?storyid=7093

External Source: MISC

Name: http://g-laurent.blogspot.com/2009/09/windows-vista7-smb20-negotiate-protocol.html

Hyperlink:http://g-laurent.blogspot.com/2009/09/windows-vista7-smb20-negotiate-protocol.html

External Source: FULLDISC

Name: 20090907 Windows Vista/7 : SMB2.0 NEGOTIATE PROTOCOL REQUEST Remote B.S.O.D.

Hyperlink:http://archives.neohapsis.com/archives/fulldisclosure/2009-09/0090.html