Rule: 

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Sid: 
9638

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Summary: 
This event is generated when an attempt is made to overwrite a file using Microsoft Remote Installation Service (RIS) TFTP server.

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Impact: 
Unknown.

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Detailed Information:
Microsoft Remote Installation Services (RIS) suffers from a programming error that may allow an attacker to upload files of their choosing onto the TFTP server; these files may then be installed onto machines using the service.

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Affected Systems:
Microsoft Windows 2000 SP4

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Attack Scenarios: 
An unauthenticated remote attacker can exploit the RIS TFTP server to upload and overwrite files of their choosing on an affected system.

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Ease of Attack: 
Simple.

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False Positives:
None known.

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False Negatives:
None known.

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Corrective Action: 
Apply the appropriate vendor supplied patches.

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Contributors:
Sourcefire Vulnerability Research Team

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Additional References:


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