In Level 14 of OverTheWire's Natas CTF wargame, we learn basic SQL injection to bypass an extremely unsanitized authentication check and retrieve the password.
OverTheWire: https://overthewire.org/wargames/
Writeups: https://github.com/odacavo/overthewire/tree/main/01_natas
SQL Injection Payload List: https://github.com/payloadbox/sql-injection-payload-list
0:00 - Introduction
1:10 - Source Code Walkthrough
3:03 - getflag Script
6:58 - Conclusion