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nmap/scripts/skype_v2-version.nse
kris 2f9321360f o Added a new NSE Comm library for common network discovery tasks such
as banner-grabbing (get_banner()) and making a quick exchange of data
  (exchange()).  16 scripts were updated to use this library. [Kris]

I have *not* been able to test all of these scripts; however, I have
reviewed them and they should all work properly.  I would really like
some more testing, though :)

This commit includes scripting.xml documentation.
2008-06-12 14:32:25 +00:00

56 lines
1.3 KiB
Lua

id="Skype v2"
description="Determines if remote service is Skype protocol version 2"
author = "Brandon Enright <bmenrigh@ucsd.edu>"
license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
categories = {"version"}
require "comm"
portrule = function(host, port)
if (port.number == 80 or
port.number == 443 or
port.service == nil or
port.service == "" or
port.service == "unknown")
and port.protocol == "tcp"
and port.state == "open"
and port.service ~= "http"
and port.service ~= "ssl/http"
then
return true
else
return false
end
end
action = function(host, port)
local status, result = comm.exchange(host, port, "GET / HTTP/1.0\r\n\r\n", {bytes=26, proto=port.protocol})
if (not status) then
return
end
if (result ~= "HTTP/1.0 404 Not Found\r\n\r\n") then
return
end
-- So far so good, now see if we get random data for another request
status, result = comm.exchange(host, port, "random data\r\n\r\n", {bytes=15, proto=port.protocol})
if (not status) then
return
end
if string.match(result, "[^%s!-~].*[^%s!-~].*[^%s!-~]") then
port.version.name = "skype2"
port.version.product = "Skype"
port.version.confidence = 10
port.version.fingerprint = nil
nmap.set_port_version(host, port, "hardmatched")
return
-- return "Skype v2 server detected"
end
return
end