110 lines
3.2 KiB
Lua
110 lines
3.2 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 table = require "table"
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local openssl = stdnse.silent_require "openssl"
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description = [[
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Attempts to show all variables on a MySQL server.
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]]
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---
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-- @args mysqluser The username to use for authentication. If unset it
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-- attempts to use credentials found by <code>mysql-brute</code> or
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-- <code>mysql-empty-password</code>.
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-- @args mysqlpass The password to use for authentication. If unset it
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-- attempts to use credentials found by <code>mysql-brute</code> or
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-- <code>mysql-empty-password</code>.
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--
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-- @output
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-- 3306/tcp open mysql
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-- | mysql-variables:
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-- | auto_increment_increment: 1
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-- | auto_increment_offset: 1
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-- | automatic_sp_privileges: ON
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-- | back_log: 50
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-- | basedir: /usr/
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-- | binlog_cache_size: 32768
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-- | bulk_insert_buffer_size: 8388608
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-- | character_set_client: latin1
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-- | character_set_connection: latin1
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-- | character_set_database: latin1
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-- | .
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-- | .
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-- | .
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-- | version_comment: (Debian)
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-- | version_compile_machine: powerpc
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-- | version_compile_os: debian-linux-gnu
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-- |_ wait_timeout: 28800
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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 = {"discovery", "intrusive"}
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dependencies = {"mysql-brute", "mysql-empty-password"}
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-- Version 0.1
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-- Created 01/23/2010 - v0.1 - created by Patrik Karlsson <patrik@cqure.net>
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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 catch = function() socket:close() end
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local try = nmap.new_try(catch)
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local result, response = {}, nil
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local users = {}
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local nmap_args = nmap.registry.args
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local status, rows
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-- set a reasonable timeout value
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socket:set_timeout(5000)
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-- first, let's see if the script has any credentials as arguments?
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if nmap_args.mysqluser then
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users[nmap_args.mysqluser] = nmap_args.mysqlpass or ""
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-- next, let's see if mysql-brute or mysql-empty-password brought us anything
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elseif nmap.registry.mysqlusers then
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-- do we have root credentials?
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if nmap.registry.mysqlusers['root'] then
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users['root'] = nmap.registry.mysqlusers['root']
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else
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-- we didn't have root, so let's make sure we loop over them all
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users = nmap.registry.mysqlusers
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end
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-- last, no dice, we don't have any credentials at all
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else
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stdnse.debug1("No credentials supplied, aborting ...")
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return
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end
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--
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-- Iterates over credentials, breaks once it successfully receives results
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--
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for username, password in pairs(users) do
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try( socket:connect(host, port) )
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response = try( mysql.receiveGreeting( socket ) )
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status, response = mysql.loginRequest( socket, { authversion = "post41", charset = response.charset }, username, password, response.salt )
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if status and response.errorcode == 0 then
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local status, rs = mysql.sqlQuery( socket, "show variables" )
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if status then
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for _, row in ipairs(rs.rows) do
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table.insert(result, ("%s: %s"):format(row[1], row[2]) )
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end
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end
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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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