Rule

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Sid
15698

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Summary:
This event is generated when an attempt is made to exploit a known vulnerability using obfuscated JavaScript code.

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

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Detailed Information:
This event is generated when obfuscated JavaScript heap spray code is used against a client application.

The Just-in-time (JIT) JavaScript compiler in Mozilla Firefox 3.5 allows remote attackers to execute arbitrary code via a crafted document containing P and FONT elements.

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Affected Systems:
mozilla firefox 3.5

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Attack Scenarios:
An attacker would need to supply exploit code to the client application and obfuscate that JavaScript in doing so.

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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-2009-2477:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2009-2477
  
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