GEN:SID 1:1351
Message WEB-ATTACKS bin/tclsh execution attempt
Summary Attempted tclsh command access via web
Impact Attempt to excute a tclsh command on a webserver
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.
Affected Systems  
Attack Scenarios The attacker can make a standard HTTP request that contains '/bin/tclsh'in the URI.
Ease of Attack Simple HTTP request.
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.
Additional References sid: 1352