description = [[ Checks if the website holds a mobile version. ]] --- -- @usage nmap -p80 --script http-mobileversion-checker.nse -- -- This script sets an Android User-Agent header and checks if the request -- will be redirected to a page different than a (valid) browser request -- would be. If so, this page is most likely to be a mobile version of the -- app. -- -- @args newtargets If this is set, add any newly discovered hosts to nmap -- scanning queue. Default: nil -- -- @output -- PORT STATE SERVICE REASON -- 80/tcp open http syn-ack -- |_ http-mobileversion-checker: Found mobile version: https://m.some-very-random-website.com (Redirected to a different host) -- --- categories = {"discovery", "safe"} author = "George Chatzisofroniou" license = "Same as Nmap--See http://nmap.org/book/man-legal.html" local http = require "http" local target = require "target" local shortport = require "shortport" local httpspider = require "httpspider" local stdnse = require "stdnse" local table = require "table" getLastLoc = function(host, port, useragent) local options options = {header={}, no_cache=true, redirect_ok=function(host,port) local c = 3 return function(url) if ( c==0 ) then return false end c = c - 1 return true end end } options['header']['User-Agent'] = useragent local response = http.get(host, port, '/', options) if response.location then return response.location[#response.location] or false end return false end portrule = shortport.port_or_service( {80, 443}, {"http", "https"}, "tcp", "open") action = function(host, port) local newtargets = stdnse.get_script_args("newtargets") or nil -- We don't crawl any site. We initialize a crawler to use its iswithinhost method. local crawler = httpspider.Crawler:new(host, port, '/', { scriptname = SCRIPT_NAME } ) local loc = getLastLoc(host, port, "Mozilla/5.0 (X11; Linux i686) AppleWebKit/537.17 (KHTML, like Gecko) Chrome/24.0.1312.57 Safari/537.17") local mobloc = getLastLoc(host, port, "Mozilla/5.0 (Linux; U; Android 4.0.3; ko-kr; LG-L160L Build/IML74K) AppleWebkit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30") -- If the mobile browser request is redirected to a different page, that must be the mobile version's page. if loc ~= mobloc then local msg = "Found mobile version: " .. mobloc local mobhost = http.parse_url(mobloc) if not crawler:iswithinhost(mobhost.host) then msg = msg .. " (Redirected to a different host)" if newtargets then target.add(mobhost.host) end end return msg end return "No mobile version detected." end