Sample CTF — writeup placeholder

NOTE

This is a placeholder writeup.

Challenge

Category: pwn — Difficulty: medium

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Recon

$ checksec ./challenge
[*] '/path/to/challenge'
    Arch:     amd64-64-little
    RELRO:    Full RELRO
    Stack:    No canary found
    NX:       NX enabled
    PIE:      No PIE

Vulnerability

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Exploit

from pwn import *

# placeholder
io = process('./challenge')
io.sendline(b'A' * 0x100)
io.interactive()

Flag

flag{placeholder}

Take-away

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