Felipe Sabino felipesabino

GraphQL Summit 2019 Talks

Day 1 General Session

Programming as Theory Building

Peter Naur, 1985

PDF: http://pages.cs.wisc.edu/~remzi/Naur.pdf

Introduction

The present discussion is a contribution to the understanding of what programming is. It suggests that programming properly should be regarded as an activity by which the programmers form or achieve a certain kind of insight, a theory, of the matters at hand. This suggestion is in contrast to what appears to be a more common notion, that programming should be regarded as a production of a program and certain other texts.

Stop using JWTs!

TLDR: JWTs should not be used for keeping your user logged in. They are not designed for this purpose, they are not secure, and there is a much better tool which is designed for it: regular cookie sessions.

If you've got a bit of time to watch a presentation on it, I highly recommend this talk: https://www.youtube.com/watch?v=pYeekwv3vC4 (Note that other topics are largely skimmed over, such as CSRF protection. You should learn about other topics from other sources. Also note that "valid" usecases for JWTs at the end of the video can also be easily handled by other, better, and more secure tools. Specifically, PASETO.)

A related topic: Don't use localStorage (or sessionStorage) for authentication credentials, including JWT tokens: https://www.rdegges.com/2018/please-stop-using-local-storage/

The reason to avoid JWTs comes down to a couple different points:

The JWT specification is specifically designed only for very short-live tokens (~5 minute or less). Sessions

GitHub for Bug Bounty Hunters

GitHub repositories can disclose all sorts of potentially valuable information for bug bounty hunters. The targets do not always have to be open source for there to be issues. Organization members and their open source projects can sometimes accidentally expose information that could be used against the target company. in this article I will give you a brief overview that should help you get started targeting GitHub repositories for vulnerabilities and for general recon.

Mass Cloning

You can just do your research on github.com, but I would suggest cloning all the target's repositories so that you can run your tests locally. I would highly recommend @mazen160's GitHubCloner. Just run the script and you should be good to go.

$ python githubcloner.py --org organization -o /tmp/output

FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.

Effective Engineer - Notes

By Edmond Lau
Highly Recommended 👍
http://www.theeffectiveengineer.com/


	function verboseRegExp(input) {
	if (input.raw.length !== 1) {
	throw Error('verboseRegExp: interpolation is not supported');
	}

	let source = input.raw[0];
	let regexp = /(?<!\\)\s\|[/][/].\|[/][][\s\S][][/]/g;
	let result = source.replace(regexp, '');

	#!/bin/sh

	cd $1

	git filter-branch --commit-filter '

	if [ "$GIT_COMMITTER_EMAIL" = "your@email.com" ]
	then
	git commit-tree -S "$@";
	fi

	document.getElementById( 'loading' ).style.display = 'none';
	var speed = .001; // changes the rate of rotation
	var distance = 4; // changes the distance the point travels
	function _update() {
	bAmDrawing = true;
	lastMouseX = 0; lastMouseY = 0;
	var a = speed * performance.now();
	var x = distance * Math.cos( a );
	var y = distance * Math.sin( a );
	stage.mousemove( { data: { global : { x: x, y: y } } } )

	//: Playground - noun: a place where people can play

	import Foundation

	// MARK: Protocols
	protocol UserRequestProtocol {
	var name: String { get set }
	var age: Int { get set }
	var password: String { get set }
	var likesBacon: Bool { get set }