Amal Murali amalmurali47

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

CRLF Injection Into PHP's cURL Options

I spent the weekend meeting hackers in Vegas, and I got talking to one of them about CRLF Injection. They'd not seen many CRLF Injection vulnerabilities in the wild, so I thought I'd write up an example that's similar to something I found a few months ago.

If you're looking for bugs legally through a program like hackerone, or you're a programmer wanting to write secure PHP: this might be useful to you.

WannaCry|WannaDecrypt0r NSA-Cyberweapon-Powered Ransomware Worm

Virus Name: WannaCrypt, WannaCry, WanaCrypt0r, WCrypt, WCRY
Vector: All Windows versions before Windows 10 are vulnerable if not patched for MS-17-010. It uses EternalBlue MS17-010 to propagate.
Ransom: between $300 to $600. There is code to 'rm' (delete) files in the virus. Seems to reset if the virus crashes.
Backdooring: The worm loops through every RDP session on a system to run the ransomware as that user. It also installs the DOUBLEPULSAR backdoor. It corrupts shadow volumes to make recovery harder. (source: malwarebytes)
Kill switch: If the website www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com is up the virus exits instead of infecting the host. (source: malwarebytes). This domain has been sinkholed, stopping the spread of the worm. Will not work if proxied (source).

update: A minor variant of the viru

	#!/bin/bash

	if [ -z "$2" ]
	then
	echo "2nd Argument not supplied"
	echo "2nd argument can be basic or advanced,it used for nmap"
	echo "Usage : ./master_script.sh domain basic\|advanced"
	echo "Also do set your expo token export expToken=xxxx to receive push notification when this gets completed"
	echo "Get your expo token here : https://play.google.com/store/apps/details?id=com.hackingsimplified.notifyme"
	exit 1

	#!/bin/bash

	# Written by Frans Rosén (twitter.com/fransrosen)
	_debug="$2" #turn on debug
	_timeout="20"
	#you need a valid key, since the errors happens after it validates that the key exist. we do not need the secret key, only access key
	_aws_key="AKIA..."
	H_ACCEPT="accept-language: en-US,en;q=0.9,sv;q=0.8,zh-TW;q=0.7,zh;q=0.6,fi;q=0.5,it;q=0.4,de;q=0.3"
	H_AGENT="user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.146 Safari/537.36"

	#!/bin/bash
	# Converter.sh by @xdavidhu
	# This is a script inspired by the Bug Hunter's Methodology 3 by @Jhaddix
	# With this script, you can convert domain lists to resolved IP lists without duplicates.
	# Usage: ./converter.sh [domain-list-file] [output-file]

	echo -e "[+] Converter.sh by @xdavidhu\n"
	if [ -z "$1" ] \|\| [ -z "$2" ]; then
	echo "[!] Usage: ./converter.sh [domain-list-file] [output-file]"
	exit 1

	// How many ways can you alert(document.domain)?
	// Comment with more ways and I'll add them :)
	// I already know about the JSFuck way, but it's too long to add (:

	// Direct invocation
	alert(document.domain);
	(alert)(document.domain);
	al\u0065rt(document.domain);
	al\u{65}rt(document.domain);
	window['alert'](document.domain);

	Users and their passwords attempts
	[0]
	4
	1
	1 -
	2 !
	2 !@
	1 &
	1 0
	3 0000

	./scripts/subbrute.py lists/names_small.txt LASDFALSKJDFLKAJSDLFKJALKSDFJLKAJD.COM \| ./massdns -r lists/resolvers.txt -t A -o Snqr -w results.txt
	for i in $(grep -Ev 'NXDOMAIN' results.txt \| grep -v ' A ' \| cut -d':' -f 1 \| sort -u); do sed -i -e "/$i/d" lists/resolvers.txt; done

	graphql
	terraform
	supportuploads
	supportmedia
	supportdocs
	helpcenter
	helpcentre
	helpmedia
	knowledgebase
	kbfiles