don't add auto targets to things without rhost

Things like browser exploits don't have remote host options
which is what auto targeting relies on, so it does not make sense
to include the auto-targeting in these exploits

7837

Author: David Maloney

lib/msf/core/exploit.rb

@@ -293,8 +293,11 @@ def initialize(info = {})
       unless has_auto_target?(info['Targets'])
         # Don't add the automatic target unless there's already more than one target to pick from
         if info['Targets'].count > 1
-          auto = ["Automatic", { 'AutoGenerated' => true}]
-          info['Targets'].unshift(auto)
+          # Finally, only add the target if there is a remote host option
+          if self.respond_to?(:rhost)
+            auto = ["Automatic", { 'AutoGenerated' => true}]
+            info['Targets'].unshift(auto)
+          end
         end
       end
     end