bahorn

" Vundle
set nocompatible
filetype off
set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()
    Plugin 'VundleVim/Vundle.vim'
    Plugin 'itchyny/lightline.vim'
    Plugin 'flazz/vim-colorschemes'
    Plugin 'rykka/mathematic.vim'
    Plugin 'hari-rangarajan/CCTree'

bahorn

Coventry Hackathon Society

About

Society formed around going to hackathons and playing with tech.

Why Hackathons?

Great fun and an good way of trying new things!

bahorn

/* Here you have an exploit for CVE-2017-5754, otherwise known as "Meltdown".
 *
 * Mostly based on the paper [1], but it had to be adjusted a bit.
 * I found that the Flush+Reload method didn't work as described (with a buffer
 * of 256 pages) and had to do the binary method (which is otherwise faster, but
 * more complex to implement).
 *
 * TSX is not present on many CPUs (including the one I wrote this exploit on), 
 * so I settled for handling the SEGV signal.
 *

bahorn

CovHackSoc Organisation Etherpads

We like to use etherpad to plan most things. We use the instance hosted under wikimedia. They should be backed up regularly.

HackSoc planning (early)

Etherpad we used to plan stuff early on.

https://etherpad.wikimedia.org/p/l1d8VyBwdC

bahorn

import requests
import hashlib
import time
import uuid
import os
import copy
import json

# This is based on my personal implementation but stripped down to only what is
# needed to verify it.

bahorn

import requests
import hashlib
import time
import uuid
import os
import copy
import json

# Fixed up version of my previous code to work with the Cloud endpoints.
# Hopefully this works.

bahorn

import os
import json
import binascii
import requests
from flask import Flask, request
app = Flask(__name__)

# Web app to get use a user token from Facebook
app_id = "<BLANKED>"
app_secret = "<BLANKED>"

bahorn

Checklist for what to bring to a Hackathon - CovHackSoc

Important

• Something to write Code on (Laptop, Desktop, Tablet, etc)
• DO NOT FORGET CHARGERS.
• Extention cords come in very handy.
• Headphones
• Hygine products
• Stuff to sleep in.
• Open Mind :)

bahorn

Low Level Hax

Links, tools and documents I think are interesting for level level development.

General

• A brief history of branch prediction
• Computer Science from the Bottom Up
• silicon pr0n - Wiki for Reversing IC
• Phrack

bahorn

#!/bin/bash
IMAGE=<IMAGE_HERE>
CONTAINERNAME=<NAME_HERE>
XSOCK=/tmp/.X11-unix
XAUTH=/tmp/.docker.xauth
xauth nlist :0 | sed -e 's/^..../ffff/' | xauth -f $XAUTH nmerge -
docker run -dt \
    --name $CONTAINERNAME \
    -p 4444:4444 \
	-v $XSOCK:$XSOCK \