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+local brute = require "brute"
+local creds = require "creds"
+local informix = require "informix"
+local nmap = require "nmap"
+local shortport = require "shortport"
+local table = require "table"
+
+description = [[
+Performs brute force password auditing against IBM Informix Dynamic Server.
+]]
+
+---
+-- @usage
+-- nmap --script informix-brute -p 9088 <host>
+--
+-- @output
+-- PORT STATE SERVICE
+-- 9088/tcp open unknown
+-- | informix-brute:
+-- | Accounts
+-- | ifxnoob:ifxnoob => Valid credentials
+-- | Statistics
+-- |_ Perfomed 25024 guesses in 75 seconds, average tps: 320
+--
+-- Summary
+-- -------
+-- x The Driver class contains the driver implementation used by the brute
+-- library
+--
+
+--
+-- Version 0.1
+-- Created 07/23/2010 - v0.1 - created by Patrik Karlsson <patrik@cqure.net>
+--
+
+author = "Patrik Karlsson"
+license = "Same as Nmap--See https://nmap.org/book/man-legal.html"
+categories = {"intrusive", "brute"}
+
+
+portrule = shortport.port_or_service( { 1526, 9088, 9090, 9092 }, "informix", "tcp", "open")
+
+Driver =
+{
+
+ new = function(self, host, port)
+ local o = {}
+ setmetatable(o, self)
+ self.__index = self
+ o.host = host
+ o.port = port
+ return o
+ end,
+
+ --- Connects performs protocol negotiation
+ --
+ -- @return true on success, false on failure
+ connect = function( self )
+ local status, data
+ self.helper = informix.Helper:new( self.host, self.port, "on_nmap_dummy" )
+
+ status, data = self.helper:Connect(brute.new_socket())
+ if ( not(status) ) then
+ return status, data
+ end
+
+ return true
+ end,
+
+ --- Attempts to login to the Informix server
+ --
+ -- @param username string containing the login username
+ -- @param password string containing the login password
+ -- @return status, true on success, false on failure
+ -- @return brute.Error object on failure
+ -- creds.Account object on success
+ login = function( self, username, password )
+ local status, data = self.helper:Login( username, password, {} )
+
+ if ( status ) then
+ if ( not(nmap.registry['informix-brute']) ) then
+ nmap.registry['informix-brute'] = {}
+ end
+ table.insert( nmap.registry['informix-brute'], { ["username"] = username, ["password"] = password } )
+ return true, creds.Account:new(username, password, creds.State.VALID)
+ -- Check for account locked message
+ elseif ( data:match("INFORMIXSERVER does not match either DBSERVERNAME or DBSERVERALIASES") ) then
+ return true, creds.Account:new(username, password, creds.State.VALID)
+ end
+
+ return false, brute.Error:new( data )
+
+ end,
+
+ --- Disconnects and terminates the Informix communication
+ disconnect = function( self )
+ self.helper:Close()
+ end,
+
+}
+
+
+action = function(host, port)
+ local status, result
+ local engine = brute.Engine:new(Driver, host, port )
+ engine.options.script_name = SCRIPT_NAME
+
+ status, result = engine:start()
+
+ return result
+end