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nmap/scripts/showOwner.nse
david 49843daf56 Update some code excerpts in docs/scripting.xml. Make small changes to
scripts/showOwner.nse for the purpose of better presentation. Remove the subtle
bug in the portrule example. We shouldn't put bad examples in print.
2008-10-27 17:52:50 +00:00

67 lines
1.4 KiB
Lua

id = "Service owner"
description = [[
Attempts to find the owner of a scanned port.
The script makes a connection to the auth port (113) and queries the owner of
an open port.
]]
author = "Diman Todorov <diman.todorov@gmail.com>"
license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
categories = {"default", "safe"}
portrule = function(host, port)
local auth_port = { number=113, protocol="tcp" }
local identd = nmap.get_port_state(host, auth_port)
if
identd ~= nil
and identd.state == "open"
and port.protocol == "tcp"
and port.state == "open"
then
return true
else
return false
end
end
action = function(host, port)
local owner = ""
local client_ident = nmap.new_socket()
local client_service = nmap.new_socket()
local catch = function()
client_ident:close()
client_service:close()
end
local try = nmap.new_try(catch)
try(client_ident:connect(host.ip, 113))
try(client_service:connect(host.ip, port.number))
local localip, localport, remoteip, remoteport =
try(client_service:get_info())
local request = port.number .. ", " .. localport .. "\n"
try(client_ident:send(request))
owner = try(client_ident:receive_lines(1))
if string.match(owner, "ERROR") then
owner = nil
else
owner = string.match(owner, "USERID : .+ : (.+)\n", 1)
end
try(client_ident:close())
try(client_service:close())
return owner
end