finger.nse

Overview是Linux,FreeBSD,UNIX,Windows下的网络扫描和嗅探工 具包,其基本功能有三个,一是探测一组主机是否在线 其次是扫描 主机端口,嗅探所提供的网络服务 还可以推断主机

id="Finger Results"

description="attempts to get a list of usernames via the finger service"

author = "Eddie Bell <[e-mail]>"

license = "See nmaps COPYING for licence"

categories = {"discovery"}

require "shortport"

portrule = shortport.port_or_service(79, "finger")

action = function(host, port)
	local socket = nmap.new_socket()
	local results = ""
	local status = true

	local err_catch = function()
		socket:close()
	end

	local try = nmap.new_try(err_catch())

	socket:set_timeout(5000)
	try(socket:connect(host.ip, port.number, port.protocol))
	try(socket:send("\r\n"))

	status, results = socket:receive_lines(100)
	socket:close()

	if not(status) then
		return results
	end
end