Rule

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Sid
22942

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Summary:
This event is generated when an attempt is made to exploit a known vulnerability in windows 7.

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Impact:
Denial of Service. Information disclosure. Loss of integrity. 

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Detailed Information:
The Authenticode Signature Verification function in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, Windows 7 Gold and SP1, and Windows 8 Consumer Preview does not properly validate the digest of a signed portable executable (PE) file, which allows user-assisted remote attackers to execute arbitrary code via a modified file with additional content, aka "WinVerifyTrust Signature Validation Vulnerability."

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Affected Systems:
microsoft windows 7 
microsoft windows 7 
microsoft windows 7 

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Attack Scenarios:


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Ease of Attack:
Simple. Exploits exist.

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False Positives:
None known.

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False Negatives:
None known.

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Corrective Action:
Upgrade to the latest non-affected version of the software.

Apply the appropriate vendor supplied patches.

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Contributors:
Sourcefire Vulnerability Research Team
This document was generated from data supplied by the National Vulnerability Database. A product of the National Institute of Standards and Technology.
For more information see http://nvd.nist.gov/

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Additional References:

NIST CVE-2012-0151:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-0151
  
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