nexpose-brute
NSE detection rule by Vlatko Kosturjak · Same as Nmap--See https://nmap.org/book/man-legal.html
Performs brute force password auditing against a Nexpose vulnerability scanner
using the API 1.1.
As the Nexpose application enforces account lockout after 4 incorrect login
attempts, the script performs only 3 guesses per default. This can be
altered by supplying the <code>brute.guesses</code> argument a different
value or 0 (zero) to guess the whole dictionary.
local brute = require "brute"
local creds = require "creds"
local http = require "http"
local shortport = require "shortport"
local stdnse = require "stdnse"
local openssl = stdnse.silent_require "openssl"
description=[[
Performs brute force password auditing against a Nexpose vulnerability scanner
using the API 1.1.
As the Nexpose application enforces account lockout after 4 incorrect login
attempts, the script performs only 3 guesses per default. This can be
altered by supplying the <code>brute.guesses</code> argument a different
value or 0 (zero) to guess the whole dictionary.
]]
---
-- @usage
-- nmap --script nexpose-brute -p 3780 <ip>
--
-- @output
-- PORT STATE SERVICE REASON VERSION
-- 3780/tcp open ssl/nexpose syn-ack NeXpose NSC 0.6.4
-- | nexpose-brute:
-- | Accounts
-- | nxadmin:nxadmin - Valid credentials
-- | Statistics
-- |_ Performed 5 guesses in 1 seconds, average tps: 5
--
author = "Vlatko Kosturjak"
license = "Same as Nmap--See https://nmap.org/book/man-legal.html"
categories = {"intrusive", "brute"}
portrule = shortport.port_or_service(3780, "nexpose", "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 ) return true end,
login = function( self, username, password )
local postdata='<?xml version="1.0" encoding="UTF-8"?><LoginRequest sync-id="1" user-id="'..username..'" password="'..password..'"></LoginRequest>'
local response = http.post( self.host, self.port, '/api/1.1/xml', { no_cache = true, header = { ["Content-Type"] = "text/xml" } }, nil, postdata )
if (not(response)) then
local err = brute.Error:new( "Couldn't send/receive HTTPS request" )
err:setRetry( true )
return false, err
end
if (response.body == nil or response.body:match('<LoginResponse.*success="0"')) then
stdnse.debug2("Bad login: %s/%s", username, password)
return false, brute.Error:new( "Bad login" )
elseif (response.body:match('<LoginResponse.*success="1"')) then
stdnse.debug1("Good login: %s/%s", username, password)
return true, creds.Account:new(username, password, creds.State.VALID)
end
stdnse.debug1("WARNING: Unhandled response: %s", response.body)
return false, brute.Error:new( "incorrect response from server" )
end,
disconnect = function( self ) return true end,
}
action = function(host, port)
local engine = brute.Engine:new(Driver, host, port)
engine.options.script_name = SCRIPT_NAME
engine.options.max_guesses = tonumber(stdnse.get_script_args('brute.guesses')) or 3
local status, result = engine:start()
return result
end