Hack The Box - Introduction to Binary Exploitation - Jeeves - [Walkthrough]

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CTF: HackTheBox

Link: https://www.hackthebox.eu/

Category: Pwn

Challenge name: Jeeves

Difficulty: 1/10

00:00 Introduction 00:25 Checking out the binary 00:40 Using Ghidra 01:20 Running the binary 01:40 Checking out what we want and where our input goes 02:00 Uses gets for input, we have buffer overflow 02:30 Explaining segmentation fault and when it happens 03:10 Explaining the stack and how it grows 05:00 Counting how many bytes we need to overwrite to get to the wanted variable 07:30 Checking our calculations in IDA 08:15 Creating our input with pwntools 11:15 Executing on the server ... https://www.youtube.com/watch?v=W5dVsa3__N4