Rule

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Sid
16665

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Summary:
This event is generated when an attempt is made to exploit a known vulnerability in Windows 2003 server.

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

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Detailed Information:
The MPC::HexToNum function in helpctr.exe in Microsoft Windows Help and Support Center in Windows XP and Windows Server 2003 does not properly handle malformed escape sequences, which allows remote attackers to bypass the trusted documents whitelist (fromHCP option) and execute arbitrary commands via a crafted hcp:// URL.

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Affected Systems:
Microsoft Windows XP
Microsoft Windows 2003 server 

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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-2010-1885:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2010-1885
  
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