README.md

TryHackMe | IDOR

TryHackMe-IDOR

Learn how to find and exploit IDOR vulnerabilities in a web application giving you access to data that you shouldn't have.

Task 1 What is an IDOR?

Insecure Direct Object Reference

Task 2 An IDOR Example

http://online-service.thm/profile?user_id=1305

http://online-service.thm/profile?user_id=1000

https://onlinestore.thm/order/1234/invoice

https://onlinestore.thm/order/1000/invoice

Task 3 Finding IDORs in Encoded IDs

Base64 Decode and Encode - Online

Task 4 Finding IDORs in Hashed IDs

CrackStation - Online Password Hash Cracking - MD5, SHA1, Linux, Rainbow Tables, etc.

Task 5 Finding IDORs in Unpredictable IDs

Task 6 Where are IDORs located

/user/details

/user/details?user_id=123

Task 7 A Practical IDOR Example

https://LAB_WEB_URL.p.thmlabs.com

/api/v1/customer?id={user_id}

What is the username for user id 1?

What is the email address for user id 3?