Fix undefined method error

[FixRM rapid7#8348]

Author: wchen-r7

modules/auxiliary/admin/http/typo3_sa_2010_020.rb

@@ -99,15 +99,23 @@ def run
 				},25)
 
 		rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout
+			return
 		rescue ::Timeout::Error, ::Errno::EPIPE => e
 			print_error(e.message)
+			return
+		end
+
+		if file.nil?
+			print_error("Connection timed out")
+			return
 		end
 
 		if ((counter.to_f/queue.length.to_f)*100.0).to_s =~ /\d0.0$/ # Display percentage complete every 10%
 			percentage = (counter.to_f/queue.length.to_f)*100.0
 			print_status("Requests #{percentage.to_i}% complete - [#{counter} / #{queue.length}]")
 		end
 
+		# file can be nil
 		case file.headers['Content-Type']
 		when 'text/html'
 			case file.body