Rule

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Sid
16209

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

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Impact:
Denial of Service.   

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Detailed Information:
The rad_decode function in FreeRadius before 1.1.8 allows remote attackers to cause a denial of service (radiusd crash) via zero-length Tunnel-Password attributes.  NOTE: this is a regression error related to CVE-2003-0967.

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Affected Systems:
FreeRadius 0.2
FreeRadius 0.3
FreeRadius 0.4
FreeRadius 0.5
FreeRadius 0.8
FreeRadius 0.8.1
FreeRadius 0.9
FreeRadius 0.9.1
FreeRadius 0.9.2
FreeRadius 0.9.3
FreeRadius 1.0.0
FreeRadius 1.0.1
FreeRadius 1.0.2
FreeRadius 1.0.3
FreeRadius 1.0.4
FreeRadius 1.0.5
FreeRadius 1.1.0
FreeRadius 1.1.3
FreeRadius 1.1.5
FreeRadius 1.1.6
FreeRadius 1.1.7

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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-2009-3111:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2009-3111
  
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