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local ajp = require "ajp"
local base64 = require "base64"
local brute = require "brute"
local creds = require "creds"
local http = require "http"
local shortport = require "shortport"
local stdnse = require "stdnse"
description = [[
Performs brute force passwords auditing against the Apache JServ protocol.
The Apache JServ Protocol is commonly used by web servers to communicate with
back-end Java application server containers.
]]
---
-- @usage
-- nmap -p 8009 <ip> --script ajp-brute
--
-- @output
-- PORT STATE SERVICE
-- 8009/tcp open ajp13
-- | ajp-brute:
-- | Accounts
-- | root:secret - Valid credentials
-- | Statistics
-- |_ Performed 1946 guesses in 23 seconds, average tps: 82
--
-- @args ajp-brute.path URL path to request. Default: /
author = "Patrik Karlsson"
license = "Same as Nmap--See https://nmap.org/book/man-legal.html"
categories = {"intrusive", "brute"}
portrule = shortport.port_or_service(8009, 'ajp13', 'tcp')
local arg_url = stdnse.get_script_args(SCRIPT_NAME .. ".path") or "/"
local function fail(err) return stdnse.format_output(false, err) end
Driver = {
new = function(self, host, port, options)
local o = { host = host,
port = port,
options = options,
helper = ajp.Helper:new(host, port)
}
setmetatable(o, self)
self.__index = self
return o
end,
connect = function(self)
return self.helper:connect(brute.new_socket())
end,
disconnect = function(self)
return self.helper:close()
end,
login = function(self, user, pass)
local headers = {
["Authorization"] = ("Basic %s"):format(base64.enc(user .. ":" .. pass))
}
local status, response = self.helper:get(arg_url, headers)
if ( not(status) ) then
local err = brute.Error:new( response )
err:setRetry( true )
return false, err
elseif( response.status ~= 401 ) then
return true, creds.Account:new(user, pass, creds.State.VALID)
end
return false, brute.Error:new( "Incorrect password" )
end,
}
action = function(host, port)
local helper = ajp.Helper:new(host, port)
if ( not(helper:connect()) ) then
return fail("Failed to connect to server")
end
local status, response = helper:get(arg_url)
if ( not(response.headers['www-authenticate']) ) then
return "\n URL does not require authentication"
end
local challenges = http.parse_www_authenticate(response.headers['www-authenticate'])
local options = { scheme = nil }
for _, challenge in ipairs(challenges or {}) do
if ( challenge and challenge.scheme and challenge.scheme:lower() == "basic") then
options.scheme = challenge.scheme:lower()
break
end
end
if ( not(options.scheme) ) then
return fail("Could not find a supported authentication scheme")
end
local engine = brute.Engine:new(Driver, host, port )
engine.options.script_name = SCRIPT_NAME
local status, result = engine:start()
if ( status ) then
return result
end
end
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