gladiatx0r

Overview

In the default configuration of Active Directory, it is possible to remotely take over Workstations (Windows 7/10/11) and possibly servers (if Desktop Experience is installed) when their WebClient service is running. This is accomplished in short by;

• Triggering machine authentication over HTTP via either MS-RPRN or MS-EFSRPC (as demonstrated by @tifkin_). This requires a set of credentials for the RPC call.
• Relaying that machine authentication to LDAPS for configuring RBCD
• RBCD takeover

The caveat to this is that the WebClient service does not automatically start at boot. However, if the WebClient service has been triggered to start on a workstation (for example, via some SharePoint interactions), you can remotely take over that system. In addition, there are several ways to coerce the WebClient service to start remotely which I cover in a section below.

yassineaboukir

0
00
01
02
03
1
1.0
10
100
1000

stefanocoding

You do not need to run 80 reconnaissance tools to get access to user accounts

An open redirect was almost everything I needed in two different bug bounty programs to get access to user accounts. In one of the cases a JWT was leaked, and in the other the CSRF token was leaked. The issue was mostly the same in both cases: not validating, or URI encoding, user input in the client-side, and sending sensitive information to my server using an open redirect.

CSRF token bug

1. There is an open redirect on https://example.com/redirect?url=https://myserver.com/attack.php
2. User loads https://example.com/?code=VALUE
3. Javascript code in https://example.com/ makes a GET request to https://example.com/verify/VALUE with a header x-csrf-token set to the CSRF token for the session of the user

   GET /verify/VALUE HTTP/1.1
   Host: example.com
   

jhaddix

Fast Testing Checklist

A combination of my own methodology and the Web Application Hacker's Handbook Task checklist, as a Github-Flavored Markdown file

Contents

• Recon and analysis
• Test handling of access
• Test handling of input
• Test application logic
• Assess application hosting
• Miscellaneous tests

tomnomnom

// 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);

EdOverflow

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

EdOverflow

Bug Bounty FAQ

A list of questions that bounty hunters frequently DM me about. 😄

How do I get started with bug bounty hunting? How do I improve my skills?

I have a simple philosophy that I share with everyone:

• Learn to make it. Then break it!
• Read books. Lots of books.

nikallass

#!/bin/bash

# update apt-get
export DEBIAN_FRONTEND="noninteractive"
sudo apt-get update

# remove previously installed Docker
sudo apt-get remove docker docker-engine docker.io* lxc-docker*

# install dependencies 4 cert

mhmdiaa

import requests
import sys
import json


def waybackurls(host, with_subs):
    if with_subs:
        url = 'http://web.archive.org/cdx/search/cdx?url=*.%s/*&output=json&fl=original&collapse=urlkey' % host
    else:
        url = 'http://web.archive.org/cdx/search/cdx?url=%s/*&output=json&fl=original&collapse=urlkey' % host

mhmdiaa

import requests
import re
import sys
from multiprocessing.dummy import Pool


def robots(host):
    r = requests.get(
        'https://web.archive.org/cdx/search/cdx\
        ?url=%s/robots.txt&output=json&fl=timestamp,original&filter=statuscode:200&collapse=digest' % host)