Steffen Roller sroller

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

	#!/usr/bin/env ruby

	# create Chess960 starting position
	# algorithm from https://en.wikipedia.org/wiki/Fischer_random_chess_numbering_scheme

	knight_positions = [
	['N', 'N', '.', '.', '.'],
	['N', '.', 'N', '.', '.'],
	['N', '.', '.', 'N', '.'],
	['N', '.', '.', '.', 'N'],

	#!/usr/bin/env ruby

	require 'pp'
	require 'nokogiri'
	require 'open-uri'

	doc = Nokogiri::XML(open('http://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml'))

	cubes = doc.xpath("//ecb:Cube[@currency='CAD']",
	'ecb' => 'http://www.ecb.int/vocabulary/2002-08-01/eurofxref')

	#!/usr/bin/env ruby
	#
	# demo of Savon 2.x interface with WSDL
	#

	# gem 'savon', "~>2.x"
	require 'savon'

	class GetXRate
	def initialize

	gem 'savon', "~>1.0"
	require 'savon'

	class GetXRate
	def initialize
	Savon.configure do \|c\|
	c.log = false
	end

	HTTPI.log = false

	#!ruby

	# make sure we use version 2.x of Savon
	gem 'savon', '~> 2.0'
	require 'savon'
	require 'nokogiri'

	# create the client, switch on nice logging
	clnt = Savon.client(
	wsdl: 'http://www.webservicex.net/stockquote.asmx?wsdl',

	entry="CN=steffenr,OU=Users,OU=Accounts,DC=big-company,DC=com"
	capture=entry.match(/CN=((?:(?!,).)*)/)
	capture[1]="steffenr"

	entry="CN=steffenr,OU=Users,OU=Accounts,DC=big-company,DC=com"
	capture=entry.match(/CN=(.*),/)