local comm = require "comm" local nmap = require "nmap" local shortport = require "shortport" description = [[ Attempts to retrieve a list of usernames using the finger service. ]] author = "Eddie Bell" license = "Same as Nmap--See https://nmap.org/book/man-legal.html" categories = {"default", "discovery", "safe"} --- -- @output -- PORT STATE SERVICE -- 79/tcp open finger -- | finger: -- | Welcome to Linux version 2.6.31.12-0.2-default at linux-pb94.site ! -- | 01:14am up 18:54, 4 users, load average: 0.14, 0.08, 0.01 -- | -- | Login Name Tty Idle Login Time Where -- | Gutek Ange Gutek *:0 - Wed 06:19 console -- | Gutek Ange Gutek pts/1 18:54 Wed 06:20 -- | Gutek Ange Gutek *pts/0 - Thu 00:41 -- |_Gutek Ange Gutek *pts/4 3 Thu 01:06 portrule = shortport.port_or_service(79, "finger") action = function(host, port) local try = nmap.new_try() return try(comm.exchange(host, port, "\r\n", {lines=100, timeout=5000})) end