Tutorial

Catégorie: Pwn Difficulté: very-easy Flag: HTB{gg_3z_th4nk5_f0r_th3_tut0r14l}

Challenge

3KB

pwn_tutorial.zip

archive

Description

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Before we start, practice time!

Ce challenge tourne sur un docker, disponible sur Github

Objectif

Il suffit de répondre aux questions posées

Script de résolution

from pwnlib.tubes.remote import remote

def solve(host, port):
	client = remote(host, port)
	client.recvuntil(b'>> ')
	client.sendline(b'y')
	client.recvuntil(b'>> ')
	client.sendline(b'2147483647')
	client.recvuntil(b'>> ')
	client.sendline(b'-2147483648')
	client.recvuntil(b'>> ')
	client.sendline(b'-2')
	client.recvuntil(b'>> ')
	client.sendline(b'integer overflow')
	client.recvuntil(b'>> ')
	client.sendline(b'-2147483648')
	client.recvuntil(b'>> ')
	client.sendline(b'1337')
	data = client.recvall(timeout=1)
	flag = data.split(b'0;0H')[1].strip().decode()
	print(f"Flag: {flag}")

if __name__ == '__main__':
	solve('94.237.61.79', 34164)