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[+] Kelelawar Cyber Team [+]


	: 216.73.216.123
	: 104.131.203.165 / webuikits.com
	: Linux Webuikits 3.13.0-57-generic #95-Ubuntu SMP Fri Jun 19 09:28:15 UTC 2015 x86_64

: /usr/share/nmap/scripts/

files >> //usr/share/nmap/scripts/stun-info.nse

 local nmap = require "nmap"
local shortport = require "shortport"
local stun = require "stun"

description = [[
Retrieves the external IP address of a NAT:ed host using the STUN protocol.
]]

---
-- @usage
-- nmap -sV -PN -sU -p 3478 --script stun-info <ip>
--
-- @output
-- PORT     STATE         SERVICE
-- 3478/udp open|filtered stun
-- | stun-info: 
-- |_  External IP: 80.216.42.106
--

author = "Patrik Karlsson"
license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
categories = {"discovery", "safe"}


portrule = shortport.port_or_service(3478, "stun", "udp")

local function fail(err) return ("\n  ERROR: %s"):format(err or "") end

action = function(host, port)
	local helper = stun.Helper:new(host, port)
	local status = helper:connect()
	if ( not(status) ) then
		return fail("Failed to connect to server")
	end
	
	local status, result = helper:getExternalAddress()
	if ( not(status) ) then
		return fail("Failed to retrieve external IP")
	end

	port.version.name = "stun"
	nmap.set_port_state(host, port, "open")
	nmap.set_port_version(host, port)
    
	if ( result ) then
		return "\n  External IP: " .. result
	end
end