Vulnerability: MS10-034 - Cumulative Security Update of ActiveX Kill Bits (980195)

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	Details
Vulnerability name/brief description	MS10-034 - Cumulative Security Update of ActiveX Kill Bits (980195)
CVE/CAN name	CVE-2010-0252 CVE-2010-0811
Vendor threat level	Critical
SophosLabs threat level	Medium
Solution	MS10-034
Vendor description	This security update addresses two privately reported vulnerabilities for Microsoft software. This security update is rated Critical for all supported editions of Microsoft Windows 2000, Windows XP, Windows Vista, and Windows 7, and Moderate for all supported editions of Windows Server 2003, Windows Server2008, and Windows Server 2008 R2. The vulnerabilities could allow remote code execution if a user views a specially crafted Web page that instantiates a specific ActiveX control with Internet Explorer.
SophosLabs comments	Although a popular attack vector, neither of these vulnerabilities have been publicly disclosed and both can be mitigated by the comparatively simple application of registry kill bits. For these reasons SophosLabs have assigned this update a threat level of medium.
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	8th June 2010
Affected software	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 Service Pack 1 and 2 Windows Vista x64 Edition Service Pack 1 and Service Pack 2 Windows Server 2008 for 32-bit Systems No Service Pack Service Pack 2 Windows Server 2008 for x64-based Systems No Service Pack and Service Pack 2 Windows Server 2008 for Itanium-based Systems No Service Pack and 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
References	http://www.microsoft.com/technet/security/bulletin/MS10-034.mspx http://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2010-0252 http://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2010-0811
Credits	Microsoft MAPP
Revisions	8th June 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:
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Discovery Date:
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Affected Software:
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