Vulnerability: MS10-009 - Vulnerabilities in Windows TCP/IP Could Allow Remote Code Execution (974145)

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	Details
Vulnerability name/brief description	MS10-009 - Vulnerabilities in Windows TCP/IP Could Allow Remote Code Execution (974145)
CVE/CAN name	CVE-2010-0239 CVE-2010-0240 CVE-2010-0241 CVE-2010-0242
Vendor threat level	Critical
SophosLabs threat level	Medium
Solution	MS10-009
Vendor description	This security update resolves four privately reported vulnerabilities in Microsoft Windows. The most severe of these vulnerabilities could allow remote code execution if specially crafted packets are sent to a computer with IPv6 enabled. An attacker could try to exploit the vulnerability by creating specially crafted ICMPv6 packets and sending the packets to a system with IPv6 enabled. This vulnerability may only be exploited if the attacker is on-link.
SophosLabs comments	Although vulnerabilities in the TCP/IP stack are of a dangerous nature, the requirement for the attacker to be "on-link" with the target coupled with the fact that this vulnerability was undisclosed prior to the release of the patch has lead us to classify this issue as medium risk.
SophosLabs testing result	N/A
Currently known exploits	At the time of writing SophosLabs have not observed any malware attempting to exploit this vulnerability. Should this situation change samples will be analyzed and we will take action as necessary.
First sample seen	N/A
Discovery date	9 February 2010
Affected software	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 Server 2008 for Itanium-based Systems and Windows Server 2008 for Itanium-based Systems Service Pack 2 *Server Core installation affected.
References	http://www.microsoft.com/technet/security/bulletin/MS10-009.mspx http://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2010-0239 http://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2010-0240 http://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2010-0241 http://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2010-0242
Credits	MAPP
Revisions	9 February 2010 - Initial analysis written

Explanation of terms

Vulnerability Name/Brief Description:
Vendor identifier plus a brief description of the type of attack.

CVE/CAN Name:
Currently assigned CVE name. If a CVE name doesn't exist the CAN name will be used until a CVE has been assigned.

Vendor Threat Level:
Threat level assigned by the vendor

SophosLabs Threat Level:
Threat level assigned by SophosLabs

• LOW RISK - There is little chance of this vulnerability being actively exploited by malware.
• MEDIUM RISK - There is a possibility of this vulnerability being actively exploited by malware.
• HIGH RISK - There is a strong possibility of this vulnerability being actively exploited by malware.
• CRITICAL RISK - This vulnerability will almost certainly be actively exploited by malware.

Solution:
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Vendor Description:
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SophosLabs Comments:
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SophosLabs Testing Result:
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Currently Known Exploits:
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First Sample Seen:
Date of the first sample seen by SophosLabs.

Discovery Date:
Date of the earliest known publically disclosed advisory.

Affected Software:
Vulnerable platforms and software versions.