hexkyz

###############################################
# TX SX OS unpacker - by hexkyz and naehrwert #
###############################################

from Crypto.Cipher import AES
from Crypto.Util import Counter
import os
import struct

"""

hexkyz

#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
#include <stdbool.h>
#include <string.h>

#define FUSE_IMAGE_SIZE                                             0x400
#define ROM_BASE                                                 0x100000

#define FUSE_BOOTROM_PATCH_SIZE_T210_START_BIT                         13

ulidtko

Exploiting Lua 5.1 on x86_64

The following Lua program generates a Lua bytecode program called lua-sandbox-rce.luac, which in turn spawns a shell from within Lua 5.1 sandbox. The remainder of this document attempts to explain how this program works by a whirlwind tour of relevent bits of the Lua 5.1 virtual machine.

function outer()
  local magic -- In bytecode, the stack slot corresponding to this local is changed
  local function middle()
    local co, upval
    local ub1 = {[0] = -- Convert uint8_t to char[1]

karlding

Download Vagrant boxes manually

In this example, we're going to download the Midnight Sun box.

# The box URL is https://app.vagrantup.com/uwmidsun/boxes/box/versions/2.1.0
# In general, we just take the box URL, and then append the provider URL
# https://app.vagrantup.com/<organization name>/boxes/<box name>/versions/<version>/providers/<provider>.box
wget https://app.vagrantup.com/uwmidsun/boxes/box/versions/2.1.0/providers/virtualbox.box -O box-2.1.0.box

graphadvantage

Neo4j 3.1 Performance on Azure VM with Bitlocker Disk Encryption

2 Billion Relationships, 450M Nodes on an Azure VM

Introduction

I recently completed an interesting POC of Neo4j 3.1 on Azure, and discovered that there's not much in the way of documentation out there. This Gist provides some notes on how to deploy Neo4j on Azure in enterprise settings, and examines the impact of Bitlocker disk encryption on Neo4j performance for common tasks.

TopLine

lopes

#!/usr/bin/env python3
#
# This is a simple script to encrypt a message using AES
# with CBC mode in Python 3.
# Before running it, you must install pycryptodome:
#
# $ python -m pip install PyCryptodome
#
# Author.: José Lopes
# Date...: 2019-06-14

mavieth

#!/bin/bash

DARKGRAY='\033[1;30m'
RED='\033[0;31m'    
LIGHTRED='\033[1;31m'
GREEN='\033[0;32m'    
YELLOW='\033[1;33m'
BLUE='\033[0;34m'    
PURPLE='\033[0;35m'    
LIGHTPURPLE='\033[1;35m'

rvl

Pushing to Multiple Git Repos

If a project has to have multiple git repos (e.g. Bitbucket and Github) then it's better that they remain in sync.

Usually this would involve pushing each branch to each repo in turn, but actually Git allows pushing to multiple repos in one go.

If in doubt about what git is doing when you run these commands, just

claymcleod

import sys,os
import curses

def draw_menu(stdscr):
    k = 0
    cursor_x = 0
    cursor_y = 0

    # Clear and refresh the screen for a blank canvas
    stdscr.clear()

geekman

#!/usr/bin/env python
#
# tool to parse JFFS2 images
# and more importantly, guess the erase block size
# 
# 2015.10.19 darell tan
#

from struct import unpack
from argparse import ArgumentParser