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