In the world of cybersecurity, Active Directory (or simply AD) is one of the most critical pillars within any organization. It's the technology most companies use to manage users, devices, and permissions across their internal networks. And precisely because of that, it’s also one of the first targets for attackers.
If a cybercriminal manages to compromise AD, they can take control of the entire network. That’s why conducting an Active Directory pentest (a penetration test focused on identifying security flaws) is not just advisable—it’s essential.
In this article, we’ll explain what Active Directory pentesting is, why you should pay attention to it, and how it can help strengthen your company’s security before someone with bad intentions tries to exploit it.
Active Directory Pentesting is essentially a security test that simulates a real (but controlled) attack on a company’s Active Directory infrastructure. The goal? To detect misconfigurations, vulnerabilities, or poor practices before real attackers do.
These tests are carried out by a security professional—commonly known as an ethical hacker—who steps into the shoes of an attacker to uncover how the system could be compromised. This provides a clear view of how exposed the network is and allows for improvements to be made before it’s too late.
Active Directory is one of the top targets for attackers. If they gain access, they can take full control over users, devices, and data within the network. That’s why pentesting AD isn’t just a best practice—it’s a necessity.
This type of testing not only identifies security flaws but also evaluates how effective your current security measures are. Additionally, it can help ensure compliance with security regulations and standards that many industries now require.
Here are some of the key benefits your company can gain from conducting these tests:
Identify real vulnerabilities before cybercriminals exploit them.
Protect critical and sensitive data from unauthorized access.
Comply with security regulations and standards (such as ISO 27001, GDPR, etc.).
Improve the configuration and overall strength of the corporate network.
Reduce risk and increase resilience against potential attacks.
Conducting a pentest on Active Directory is one of the most effective ways to improve your company's security posture from within. It’s not just about finding flaws—it’s about learning, fixing, and staying one step ahead of attackers.
Read more: Why Pentesting Is Key in a Cybersecurity Strategy
When performing a pentest on Active Directory, the goal is to evaluate— from every possible angle— the security of the infrastructure that manages users, devices, and permissions within a corporate network.
Some of the key areas assessed during this evaluation include:
Network Configuration: Analyzing the internal network structure to identify insecure paths or unnecessary access points.
System and Application Configuration: Reviewing operating systems and software interacting with AD to detect misconfigurations or vulnerable versions.
Active Directory Security: Examining objects, permissions, roles, and critical configurations within the AD environment.
Password Policies: Evaluating whether passwords are secure, follow best practices, and are adequately protected.
Access Control to Data and Resources: Verifying who can access what, and identifying excessive or misassigned permissions.
Potential Entry Points: Identifying attack vectors that could be exploited to escalate privileges or move laterally through the network.
In short, the objective is to gain a comprehensive understanding of how the AD environment is configured and protected, and how easy it would be for an attacker to compromise it.
The process is typically handled by cybersecurity professionals or specialized companies. Broadly speaking, an Active Directory pentest follows these steps:
Initial Assessment: Reviewing the current infrastructure to understand how the AD environment is set up, which systems interact with it, and what security measures are in place.
Vulnerability Identification: Using automated and manual techniques to uncover misconfigurations, poorly assigned permissions, overprivileged accounts, weak passwords, and more.
Controlled Attack Simulation: Carrying out a realistic simulation of an attack (e.g., pass-the-hash, kerberoasting, or lateral movement) to determine how far an attacker could get within the environment.
Results and Recommendations Report: Documenting all discovered weaknesses, their potential impact, and providing specific recommendations to fix them and strengthen Active Directory security.
Conducting an Active Directory pentest not only helps uncover hidden risks, but also validates whether your current defenses truly work. It’s a practical and effective way to stay ahead of potential attacks and keep your infrastructure under control.
Read more: Cloud Penetration Testing: What you need to know?
It’s a Microsoft tool used to manage users, devices, and access within corporate networks. It plays a key role in controlling permissions and resources across an organization.
Because AD is one of the most targeted assets by attackers. A pentest helps identify vulnerabilities, protect sensitive data, ensure compliance with regulations, and strengthen your network.
It involves analyzing the AD configuration, identifying weaknesses, simulating controlled attacks, and finally delivering clear recommendations to improve security.
They can range from strengthening passwords and correcting permissions to updating systems and improving network monitoring. Everything depends on the test findings.
Keep systems and software updated.
Use strong passwords and rotate them regularly.
Review access rights and permissions.
Monitor for suspicious activity.
Conduct regular security tests.
It varies depending on the network, but it can take anywhere from a few days to a couple of weeks.
TecnetOne is a cybersecurity firm with extensive experience in performing Pentesting in Active Directory environments. Our team is composed of highly skilled professionals who can help detect and fix vulnerabilities before they pose a real threat to your business.
What sets us apart is that our services are fully customized to the size and complexity of your infrastructure. Our approach includes:
Comprehensive evaluation of Active Directory security
Identification of vulnerabilities and weak configurations
Controlled attack simulations to assess exposure level
Detailed report with practical recommendations and actionable solutions
With TecnetOne, you don’t just get a technical report—you receive a clear strategy to strengthen your AD environment and protect your company’s most critical information.
If you're looking for an effective, professional way to improve your internal security, TecnetOne is the ideal partner for delivering tailored pentests with real results.