LiveOverflow

import struct
import sys
import subprocess
import socket
import telnetlib
import ctypes

"""
Cookbook - 6 - 0 solves : pwn: a top chef wrote this cookbook for me but i think he has an extra secret recipe! 
https://s3.amazonaws.com/bostonkeyparty/2016/58056c425dc617b65f94a8b558a4699fedf4a9fb.tgz

LiveOverflow

import socket
import telnetlib
import struct
import hashlib
import random

"""
root $ python web_of_science2.py
[*] connected to webofscience2.2016.volgactf.ru:45679
[+] recv: 'Tell me your name first\n'

LiveOverflow

import sys
import r2pipe

r2 = r2pipe.open("./zwiebel2")
r2.cmd("e dbg.profile=zwiebel.rr2")
r2.cmd("doo") # reopen for debugging
r2.cmd("db 0x400875") # set breakpoint at `call r14`
r2.cmd("dc") # continue until breakpoint is hit

def step():

LiveOverflow

import socket
import telnetlib
import struct

"""
developed on stream: https://www.youtube.com/watch?v=zWgS6fTw4Ts
"""

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(('127.0.0.1', 2323))

LiveOverflow

import requests
import re
import operator


def get_scoreboard():
    r = requests.get('http://rhme.riscure.com/scores')
    return re.findall(r'<a href="user\?id=([0-9]+)">', r.text)

LiveOverflow

`timescale 1ns / 1ps
//////////////////////////////////////////////////////////////////////////////////
// Company: 
// Engineer: 
// 
// Create Date:    01:48:35 02/27/2017 
// Design Name: 
// Module Name:    main 
// Project Name: 
// Target Devices: 

LiveOverflow

#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <signal.h>
#include <pty.h>
#include <fcntl.h>
#include <time.h>
#include <sys/wait.h>

// gcc cook3.c -lutil -o cook3 -Wall

LiveOverflow

import requests
import string
import random
import urllib
import time
import base64
from decimal import Decimal

# Blind GQL injection and optimised binary search - A7 ~ Gee cue elle (misc) Google CTF 2017 
# https://www.youtube.com/watch?v=za_9hrq-ZuA

LiveOverflow

from z3 import *
import struct

# calculate e,f,d for a given input password
def calc(m):
    e = 0
    f = 0
    d = 0
    for i in xrange(0, len(m)):
        c = ord(m[i])

LiveOverflow

import sage.all
import hashlib

# part1 - https://www.youtube.com/watch?v=Vgdhlh6evjI
# part2 - https://www.youtube.com/watch?v=EOlddNofKxo

# prepare a table of bits
def bits_of(x):
    bits = []
    for c in "{:08b}".format(x):