Web Hacking: A Real-World Threat You Can Learn to Stop

Cyberkid — Thu, 08 May 2025 03:38:15 GMT

Web applications are everywhere — handling everything from your login details to your payment info. But behind the scenes, they’re often built on systems that can be fragile when not properly secured. A simple mistake in how data is handled can open the door for attackers to steal sensitive information like usernames, passwords, credit card numbers, or even government IDs.

How does this happen?

Most websites use SQL databases to store user data. These databases talk directly to the web server, which processes login forms, handles sessions, and controls access. If an application fails to properly filter user input, attackers can inject malicious commands (like SQL queries or special characters) into forms or URLs — breaking the system’s logic and gaining access to things they shouldn't see.

This is why cybersecurity professionals, especially ethical hackers (a.k.a. penetration testers), need a deep understanding of web security. It’s not just about knowing how to attack — it’s about knowing how things break so you can build them better.

One of the best tools to start learning these skills is Natas, a free web security training game created by OverTheWire. It introduces you to key web security concepts through interactive levels. You’ll explore real-world vulnerabilities like:

URL tampering
Input validation flaws
HTTP header abuse
Basic authentication bypass
Directory traversal

Each level is a live website, and your challenge is to uncover the password to the next level. The passwords are hidden on the server, and your job is to figure out how to get them — ethically, of course.

If you're serious about learning web hacking or planning a career in cybersecurity, Natas is a great place to sharpen your skills with practical, puzzle-like challenges.

Let’s get started — Level 0 is waiting.

LEVEL 0:

Username: natas0
Password: natas0
URL:      http://natas0.natas.labs.overthewire.org

Once you logged in using the URL, you can find the webpage asking username and password enter the username and password provided to enter LEVEL 1. Finally you will end up like this

This level is pretty simple, just Right Click > View Page Source.

You can find the password for the LEVEL 1 in the source code password - 0nzCigAq7t2iALyvU9xcHlYN4MlkIwlq.

LEVEL 0 —> 1:

Username: natas1
URL:      http://natas1.natas.labs.overthewire.org

Enter the URL and use the username provided and password found on LEVEL 0. You will end up in a page like this below

To access the developer tools:

Since right-clicking is disabled, press F12 on your keyboard.
This action will open the developer window, displaying various tools and options for inspecting and editing the page's code.

You can find the password in the source page. The password is TguMNxKo1DSa1tujBLuZJnDUlCcUAPlI

Congrats you have passed LEVEL 1…:)

Natas Unlocked

Web Hacking: A Real-World Threat You Can Learn to Stop