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]
A DMG Installer is convenient way to provide end-users a simple way to install an application bundle. They are basically a folder with a shortcut to the Applications directory but they can be customized with icons, backgrounds, and layout properties. A DMG file (.dmg) is a Mac OS X Disk Image file and it is used to package files or folders providing compression, encryption, and read-only to the package.
##Creating the DMG file #Disk Utility
package main
import (
"bufio"
"context"
"fmt"
"time"
"os"
The final result: require() any module on npm in your browser console with browserify
This article is written to explain how the above gif works in the chrome (and other) browser consoles. A quick disclaimer: this whole thing is a huge hack, it shouldn't be used for anything seriously, and there are probably much better ways of accomplishing the same.
Update: There are much better ways of accomplishing the same, and the script has been updated to use a much simpler method pulling directly from browserify-cdn. See this thread for details: mathisonian/requirify#5
This page documents the external/internal behavior of Casper.
Casper installed itself into the following directories:
| // Copyright (c) 2017 Ismael Celis | |
| // Permission is hereby granted, free of charge, to any person obtaining a copy | |
| // of this software and associated documentation files (the "Software"), to deal | |
| // in the Software without restriction, including without limitation the rights | |
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| // copies of the Software, and to permit persons to whom the Software is | |
| // furnished to do so, subject to the following conditions: | |
| // The above copyright notice and this permission notice shall be included in all |
| license: gpl-3.0 |
If you've not seen my résumé, that is what this post is about, and you should probably look at it first to get an idea of what's happening.
PDF and ISO9660 are two very different file formats. PDF is actually a surprisingly human-readable (but, sadly, not very human-writable) plain-text format, technically descended from PostScript. PDF is not very forgiving on changes, as it stores tables of offsets to various elements, so it is very difficult to insert or remove content manually without going through a robust PDF manipulation library.
ISO9660 is a disk filesystem, meant to be written once and read many times on many different kinds of hardware. As it is sector-based, it expects data structures to be at particular absolute offsets.
| ----- Esc ----- | |
| Quick change directory: Esc + c | |
| Quick change directory history: Esc + c and then Esc + h | |
| Quick change directory previous entry: Esc + c and then Esc + p | |
| Command line history: Esc + h | |
| Command line previous command: Esc + p | |
| View change: Esc + t (each time you do this shortcut a new directory view will appear) | |
| Print current working directory in command line: Esc + a | |
| Switch between background command line and MC: Ctrl + o | |
| Search/Go to directory in active panel: Esc + s / Ctrl + s then start typing directory name |
