Fixes some msyql issues by forcing read/write timepouts on the

connection object
Fixes #6297

lib/msf/core/exploit/mysql.rb

@@ -40,12 +40,14 @@ module Exploit::Remote::MYSQL
 		connect
 
 		@mysql_handle = ::RbMysql.connect({
-			:host     => rhost,
+			:host           => rhost,
-			:port     => rport,
+			:port           => rport,
-			:socket   => sock,
+			:read_timeout   => 300,
-			:user     => user,
+			:write_timeout  => 300,
-			:password => pass,
+			:socket         => sock,
-			:db       => db
+			:user           => user,
+			:password       => pass,
+			:db             => db
 		})
 	end