MS12-024 - Vulnerability in Windows Could Allow Remote Code Execution

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Details
Vulnerability name/brief description MS12-024 - Vulnerability in Windows Could Allow Remote Code Execution
CVE/CAN name
Vendor threat level Critical
SophosLabs threat level High
Solution MS12-024
Vendor description This security update resolves a privately reported vulnerability in Microsoft Windows. The vulnerability could allow remote code execution if a user or application runs or installs a specially crafted, signed portable executable (PE) file on an affected system.
SophosLabs comments The vulnerability is in the Windows Authenticode Signature Verification Function which allows an attacker to insert a payload into the PE file without changing the digital signatures of the file.
SophosLabs testing result No SophosLabs testing result found
Currently known exploits No currently known exploits found
First sample seen No samples found
Discovery date 10 Apr 2012
Affected software 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 2  
Windows Vista x64 Edition Service Pack 2  
Windows Server 2008 for 32-bit Systems Service Pack 2*  
Windows Server 2008 for x64-based Systems Service Pack 2*  
Windows Server 2008 for Itanium-based Systems Service Pack 2  
Windows 7 for 32-bit Systems and Windows 7 for 32-bit Systems Service Pack 1  
Windows 7 for x64-based Systems and Windows 7 for x64-based Systems Service Pack 1  
Windows Server 2008 R2 for x64-based Systems and Windows Server 2008 R2 for x64-based Systems Service Pack 1*  
Windows Server 2008 R2 for Itanium-based Systems and Windows Server 2008 R2 for Itanium-based Systems Service Pack 1
*Server Core installation affected
References
Credits
  • MAPP
Revisions
  • April 10th, 2012 - 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:

Vendor-supplied Patch identifier and recommended solution, or workaround if applicable.

Vendor Description:

Summary of the cause and potential effect of the vulnerability provided by the vendor.

SophosLabs Comments:

SophosLabs' opinions and observations of the vulnerability in question.

SophosLabs Testing Result:

Details of completed lab testing, if applicable. Please note that the lab test environment may differ significantly from user environments.

Currently Known Exploits:

List of identities for known exploits, if applicable.

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.