133 lines
3.7 KiB
Lua
133 lines
3.7 KiB
Lua
local brute = require "brute"
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local creds = require "creds"
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local nmap = require "nmap"
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local shortport = require "shortport"
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local stdnse = require "stdnse"
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local string = require "string"
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local cassandra = require "cassandra"
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description = [[
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Performs brute force password auditing against the Cassandra database.
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For more information about Cassandra, see:
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http://cassandra.apache.org/
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]]
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---
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-- @usage
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-- nmap -p 9160 <ip> --script=cassandra-brute
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--
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-- @output
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-- PORT STATE SERVICE VERSION
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-- 9160/tcp open apani1?
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-- | cassandra-brute:
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-- | Accounts
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-- | admin:lover - Valid credentials
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-- | Statistics
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-- |_ Performed 4581 guesses in 1 seconds, average tps: 4581
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--
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author = "Vlatko Kosturjak"
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license = "Same as Nmap--See https://nmap.org/book/man-legal.html"
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categories = {"intrusive", "brute"}
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portrule = shortport.port_or_service({9160}, {"cassandra"})
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Driver = {
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new = function(self, host, port, options)
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local o = { host = host, port = port, socket = brute.new_socket() }
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setmetatable(o, self)
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self.__index = self
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return o
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end,
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connect = function(self)
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return self.socket:connect(self.host, self.port)
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end,
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-- bit faster login function than in cassandra library (no protocol error checks)
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login = function(self, username, password)
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local response, magic, size, _
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local loginstr = cassandra.loginstr (username, password)
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local status, err = self.socket:send(string.pack(">I4", #loginstr))
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local combo = username..":"..password
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if ( not(status) ) then
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local err = brute.Error:new( "couldn't send length:"..combo )
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err:setAbort( true )
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return false, err
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end
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status, err = self.socket:send(loginstr)
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if ( not(status) ) then
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local err = brute.Error:new( "couldn't send login packet: "..combo )
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err:setAbort( true )
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return false, err
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end
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local status, response = self.socket:receive_bytes(22)
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if ( not(status) ) then
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local err = brute.Error:new( "couldn't receive login reply size: "..combo )
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err:setAbort( true )
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return false, err
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end
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local size = string.unpack(">I4", response, 1)
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magic = string.sub(response,18,22)
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if (magic == cassandra.LOGINSUCC) then
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stdnse.debug3("Account SUCCESS: "..combo)
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return true, creds.Account:new(username, password, creds.State.VALID)
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elseif (magic == cassandra.LOGINFAIL) then
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stdnse.debug3("Account FAIL: "..combo)
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return false, brute.Error:new( "Incorrect password" )
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elseif (magic == cassandra.LOGINACC) then
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stdnse.debug3("Account VALID, but wrong password: "..combo)
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return false, brute.Error:new( "Good user, bad password" )
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else
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stdnse.debug3("Unrecognized packet for "..combo)
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stdnse.debug3("packet hex: %s", stdnse.tohex(response) )
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stdnse.debug3("size packet hex: %s", stdnse.tohex(size) )
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stdnse.debug3("magic packet hex: %s", stdnse.tohex(magic) )
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local err = brute.Error:new( response )
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err:setRetry( true )
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return false, err
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end
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end,
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disconnect = function(self)
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return self.socket:close()
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end,
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}
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local function noAuth(host, port)
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local socket = nmap.new_socket()
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local status, result = socket:connect(host, port)
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local stat,err = cassandra.login (socket,"default","")
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socket:close()
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if (stat) then
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return true
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else
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return false
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end
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end
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action = function(host, port)
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if ( noAuth(host, port) ) then
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return "Any username and password would do, 'default' was used to test."
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end
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local engine = brute.Engine:new(Driver, host, port )
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engine.options.script_name = SCRIPT_NAME
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engine.options.firstonly = true
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local status, result = engine:start()
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return result
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end
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