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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 <code>root</code> or
<code>anonymous</code>.
]]
---
-- @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 <patrik@cqure.net>
-- 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
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