Rule

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Sid
15959

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

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

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Detailed Information:
The __VIEWSTATE functionality in Microsoft ASP.NET 1.x, when not cryptographically signed, allows remote attackers to cause a denial of service (CPU consumption) via deeply nested markup.

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Affected Systems:
Microsoft asp.net 1.0
Microsoft asp.net 1.1

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Attack Scenarios:


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Ease of Attack:
Medium.

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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-2005-1665:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2005-1665
  
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