local mysql = require "mysql" local nmap = require "nmap" local shortport = require "shortport" local stdnse = require "stdnse" local string = require "string" local table = require "table" description = [[ Checks for MySQL servers with an empty password for root or anonymous. ]] --- -- @see mysql-brute.nse -- -- @output -- 3306/tcp open mysql -- | mysql-empty-password: -- | anonymous account has empty password -- |_ root account has empty password author = "Patrik Karlsson" license = "Same as Nmap--See https://nmap.org/book/man-legal.html" categories = {"intrusive", "auth"} -- Version 0.3 -- Created 01/15/2010 - v0.1 - created by Patrik Karlsson -- Revised 01/23/2010 - v0.2 - revised by Patrik Karlsson, added anonymous account check -- Revised 01/23/2010 - v0.3 - revised by Patrik Karlsson, fixed abort bug due to try of loginrequest portrule = shortport.port_or_service(3306, "mysql") action = function( host, port ) local socket = nmap.new_socket() local result = {} local users = {"", "root"} -- set a reasonable timeout value socket:set_timeout(5000) for _, v in ipairs( users ) do local status, response = socket:connect(host, port) if( not(status) ) then return stdnse.format_output(false, "Failed to connect to mysql server") end status, response = mysql.receiveGreeting( socket ) if ( not(status) ) then stdnse.debug3("%s", SCRIPT_NAME) socket:close() return response end status, response = mysql.loginRequest( socket, { authversion = "post41", charset = response.charset }, v, nil, response.salt ) if response.errorcode == 0 then table.insert(result, string.format("%s account has empty password", ( v=="" and "anonymous" or v ) ) ) if nmap.registry.mysqlusers == nil then nmap.registry.mysqlusers = {} end nmap.registry.mysqlusers[v=="" and "anonymous" or v] = "" end socket:close() end return stdnse.format_output(true, result) end