Rule

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Sid
15932

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

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Impact:
Denial of Service.   

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Detailed Information:
Stack consumption vulnerability in the FTP server in Microsoft Internet Information Server (IIS) 5.0 and 6.0 allows remote authenticated users to cause a denial of service (crash) via a list (ls) -R command containing a wildcard that references a subdirectory, followed by a .. (dot dot).

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Affected Systems:
Microsoft IIS 5.0
Microsoft IIS 6.0

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Attack Scenarios:


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Ease of Attack:
Difficult.

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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-2009-2521:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2009-2521
  
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