Listen to this Post
Introduction:
In the ever-evolving field of cybersecurity, hands-on practice is essential for mastering Active Directory (AD) attacks and defenses. Proxmox, a free and open-source virtualization platform, combined with Ludus—a dynamic lab deployment tool—enables security professionals to rapidly deploy vulnerable AD environments like GOAD (Game of Active Directory). This article walks you through setting up a fully configured AD pentesting lab on a mini PC, leveraging these powerful tools to simulate real-world attack scenarios.
Learning Objectives:
- Understand the advantages of Proxmox over commercial hypervisors for home labs.
- Learn to install and configure Ludus on Proxmox for automated lab deployments.
- Deploy the GOAD Active Directory environment and use NetExec (nxc) for enumeration and exploitation.
You Should Know:
1. Proxmox: The Free Hypervisor That Rivals vSphere
Proxmox Virtual Environment (VE) is an open-source server management platform that integrates KVM hypervisor and LXC containers, offering enterprise-grade features without licensing costs. It supports clustering, high availability, and a web-based interface. For penetration testers, Proxmox provides a robust foundation for hosting multiple virtual machines (VMs) required for AD labs, such as domain controllers, workstations, and attack machines.
Step‑by‑step guide: To install Proxmox on a mini PC (e.g., GMKtec), download the ISO from proxmox.com, create a bootable USB, and boot the system. During installation, you’ll configure networking (static IP) and storage. Once installed, access the web GUI at https://<your-ip>:8006. Basic Linux commands for post-installation include updating repositories:
apt update && apt upgrade -y
You may also need to configure network bridges for VM connectivity. Proxmox’s intuitive interface allows you to create VMs with ease, but the real power lies in its API and scripting capabilities, which Ludus leverages.
2. Deploying Ludus: Automating Lab Creation
Ludus is an open-source tool designed to build and manage cybersecurity labs on Proxmox. It uses Ansible playbooks to define and deploy complex network topologies. The GOAD (Game of Active Directory) project by Orange Cyberdefense provides a set of Ansible roles to create a vulnerable AD forest with multiple domains, users, and misconfigurations.
To set up Ludus, you first need a Proxmox server. Then, install Ludus on a management VM (or directly on Proxmox, but recommended on a separate Linux machine). The installation involves cloning the Ludus repository and running the installer:
git clone https://github.com/ludus/ludus.git cd ludus ./install.sh
After installation, configure the Ludus server by editing `~/.ludus/config.yml` to point to your Proxmox API credentials. Then, you can deploy a lab using a predefined template. For GOAD, Ludus has a template available (or you can create one). The command to deploy a lab might look like:
ludus lab deploy -n goad -t goad-full
This will spin up multiple VMs (DC, member servers, clients) and configure them via Ansible.
3. GOAD: The Ultimate Active Directory Pentesting Playground
GOAD (Game of Active Directory) is a purposely vulnerable Active Directory environment that includes a mix of Windows Server 2016/2019, Windows 10, and various misconfigurations like weak ACLs, Kerberoasting opportunities, and unconstrained delegation. It’s designed to mimic a real corporate network with multiple domains and trusts.
With Ludus, deploying GOAD is automated. Once the lab is running, you can access the domain controller via RDP or WinRM. The lab’s IP range is typically defined in the template. For example, the DC might be at 192.168.10.10. You can then use your attack VM (Kali Linux) to perform enumeration. The official GOAD GitHub (https://github.com/Orange-Cyberdefense/GOAD) provides detailed documentation and attack paths.
4. LeHack 2024 Rome: Insights from the Conference
The LeHack 2024 Rome talk (linked in the post) likely covers advanced AD attack techniques or tooling. While the specific content isn’t available, such conferences often highlight new vulnerabilities or methodologies. For instance, talks might delve into the latest Kerberos attacks, AD CS abuse, or tools like NetExec (formerly nxc). Incorporating these insights into your lab practice can keep your skills sharp. You can search for the talk’s materials online or watch recorded sessions to stay updated.
- NetExec (nxc): The Modern AD Enumeration and Exploitation Tool
NetExec (nxc), previously known as CrackMapExec, is a Swiss Army knife for AD penetration testing. It allows you to enumerate users, shares, passwords, and execute attacks across the network. In your GOAD lab, you can use nxc to test for common vulnerabilities.
First, install nxc on your Kali machine:
sudo apt install netexec
Then, perform a basic SMB enumeration against the domain:
nxc smb 192.168.10.0/24 -u 'user' -p 'password' --shares
You can also check for SMB signing, null sessions, or execute Mimikatz. For example, to dump hashes from a compromised machine:
nxc smb <target-ip> -u 'Administrator' -p 'hash' --ntds
The tool supports protocols like winrm, ssh, and mssql, making it versatile for post-exploitation.
6. Advanced Configuration: Integrating with CI/CD and Cloud
Once comfortable with local labs, you can extend Proxmox to integrate with cloud providers or CI/CD pipelines. For instance, using Terraform to provision Proxmox VMs, or leveraging Ludus’s API to automatically rebuild labs for training sessions. This approach mirrors enterprise environments where infrastructure as code is paramount.
7. Troubleshooting Common Issues
When setting up Proxmox and Ludus, you might encounter network misconfigurations, storage limitations, or Ansible failures. Ensure your Proxmox host has sufficient RAM and CPU (at least 16GB RAM for a full GOAD lab). Use Proxmox’s logs (/var/log/pve) and Ludus’s debug output (ludus lab deploy --verbose) to diagnose issues. Common fixes include adjusting bridge settings or increasing disk space.
What Undercode Say:
- Key Takeaway 1: Proxmox combined with Ludus democratizes advanced AD pentesting labs, allowing professionals to practice realistic attack scenarios without costly infrastructure.
- Key Takeaway 2: Automated deployment tools like Ludus and GOAD reduce setup time from days to minutes, enabling continuous learning and experimentation.
Analysis: The shift towards open-source virtualization and automated lab deployment is a game-changer for cybersecurity training. It lowers the barrier to entry, allowing more individuals to gain hands-on experience with complex environments like Active Directory. As attacks on AD become more sophisticated, having a reproducible lab environment is crucial for developing and testing defense mechanisms. Moreover, the community-driven nature of projects like GOAD ensures that labs stay current with emerging threats. However, practitioners must also be mindful of resource constraints and ethical considerations when simulating attacks.
Prediction:
As organizations increasingly adopt hybrid and multi-cloud architectures, the need for realistic AD pentesting environments will grow. We predict that tools like Ludus will evolve to support cloud-based hypervisors and containerized AD instances, enabling even more scalable and diverse lab setups. Additionally, integration with automated attack frameworks and AI-driven red teaming will become commonplace, allowing security teams to continuously validate their defenses against evolving threats.
▶️ Related Video (72% Match):
🎯Let’s Practice For Free:
IT/Security Reporter URL:
Reported By: Josecampo Gmktec – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
