File: 1351.txt

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Rule:

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Sid:
1351

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Summary:
Attempted tclsh command access via web

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Impact:
Attempt to excute a tclsh command on a webserver

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Detailed Information:
This is an attempt to execute a tclsh command or script on a webserver. tclsh is a shell application that reads tcl commands and evaluates them. The attacker could possibly execute a command or script on the host.

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Attack Scenarios:
The attacker can make a standard HTTP request that contains '/bin/tclsh'in the URI.

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Ease of Attack:
Simple HTTP request.

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False Positives:
None Known

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False Negatives:
None Known

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Corrective Action:

Webservers should not be allowed to view or execute files and binaries outside of it's designated web root or cgi-bin. This command may also be requested on a command line should the attacker gain access to the machine.
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Contributors:
Sourcefire Research Team

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Additional References:
sid: 1352

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