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|
local brute = require "brute"
local creds = require "creds"
local iax2 = require "iax2"
local shortport = require "shortport"
description = [[
Performs brute force password auditing against the Asterisk IAX2 protocol.
Guessing fails when a large number of attempts is made due to the maxcallnumber limit (default 2048).
In case your getting "ERROR: Too many retries, aborted ..." after a while, this is most likely what's happening.
In order to avoid this problem try:
- reducing the size of your dictionary
- use the brute delay option to introduce a delay between guesses
- split the guessing up in chunks and wait for a while between them
]]
---
-- @usage
-- nmap -sU -p 4569 <ip> --script iax2-brute
--
-- @output
-- PORT STATE SERVICE
-- 4569/udp open|filtered unknown
-- | iax2-brute:
-- | Accounts
-- | 1002:password12 - Valid credentials
-- | Statistics
-- |_ Performed 1850 guesses in 2 seconds, average tps: 925
--
--
author = "Patrik Karlsson"
license = "Same as Nmap--See https://nmap.org/book/man-legal.html"
categories = {"intrusive", "brute"}
portrule = shortport.port_or_service(4569, "iax2", {"udp", "tcp"})
Driver = {
new = function(self, host, port)
local o = { host = host, port = port }
setmetatable(o, self)
self.__index = self
return o
end,
connect = function(self)
self.helper = iax2.Helper:new(self.host, self.port)
return self.helper:connect()
end,
login = function(self, username, password)
local status, resp = self.helper:regRelease(username, password)
if ( status ) then
return true, creds.Account:new( username, password, creds.State.VALID )
elseif ( resp == "Release failed" ) then
return false, brute.Error:new( "Incorrect password" )
else
local err = brute.Error:new(resp)
err:setRetry(true)
return false, err
end
end,
disconnect = function(self) return self.helper:close() end,
}
action = function(host, port)
local engine = brute.Engine:new(Driver, host, port)
engine.options.script_name = SCRIPT_NAME
local status, result = engine:start()
return result
end
|
