2340.txt

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Rule:

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Sid:
2340

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Summary:
This event is generated when an attempt is made to exploit a buffer 
overflow vulnerability associated with RhinoSoft Serv-u FTP Server CHMOD 
command. 

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Impact:
Remote access.  A successful attack may permit the remote execution of 
arbitrary commands with system privileges.

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Detailed Information:
Serv-u offers FTP servers for Windows hosts. A vulnerability exists 
with the CHMOD command that can cause a buffer overflow and permit the 
execution of arbitrary commands with system privileges. The buffer 
overflow can be caused by supplying an overly long argument to the CHMOD 
command.

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Affected Systems:
	RhinoSoft Serv-u FTP Server prior to version 4.2 

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Attack Scenarios:
An attacker can supply an overly long file argument with the CHMOD 
command, causing a buffer overflow.

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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:
Upgrade to the latest non-affected version of the software.

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Contributors:
Sourcefire Vulnerability Research Team
Brian Caswell <[e-mail]> 
Nigel Houghton <[e-mail]>

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Additional References:

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