The Ultimate AD Password Audit: Uncover Shocking Vulnerabilities Hiding in Your Network

By /

Listen to this Post

Featured Image

Introduction:

Active Directory (AD) remains the cornerstone of enterprise identity management, making its password security absolutely critical. Weak or compromised passwords are a primary attack vector, and standard complexity policies often provide a false sense of security. This guide provides the technical commands and methodologies to conduct a thorough, professional-grade audit of your AD password landscape.

Learning Objectives:

  • Master native PowerShell and Command Prompt techniques to extract and analyze AD password data.
  • Learn to leverage free, powerful tools like Specops Password Auditor for deep vulnerability insight.
  • Implement mitigation strategies to harden your AD against credential-based attacks.

You Should Know:

1. Enumerating AD Password Policy with PowerShell

`Get-ADDefaultDomainPasswordPolicy`

This PowerShell cmdlet fetches the default password policy for the current domain. It reveals critical settings like minimum length, complexity requirements, and password history.

Step-by-step guide:

1. Open Windows PowerShell as an administrator.

  1. Ensure the Active Directory module is loaded (it is by default on Domain Controllers, or install RSAT on Windows 10/11).

3. Run the command: `Get-ADDefaultDomainPasswordPolicy`

  1. Analyze the output. Pay close attention to MinPasswordLength, `PasswordComplexity` (True/False), and LockoutThreshold.

2. Finding Users with Passwords Never Expiring

`Get-ADUser -Filter -Properties PasswordNeverExpires | Where-Object {$_.PasswordNeverExpires -eq $true} | Select-Object Name, SamAccountName`
This command is crucial for identifying security exceptions. Accounts with non-expiring passwords are a significant risk if compromised.

Step-by-step guide:

  1. In your administrative PowerShell session, run the full command.
  2. The command queries all AD users, filters for those with the `PasswordNeverExpires` flag set to true, and displays their name and username.
  3. Investigate each account on this list to determine if the exception is justified or a security oversight.

3. Extracting Password Last Set Timestamps

`Get-ADUser -Filter -Properties PasswordLastSet | Select-Object Name, SamAccountName, PasswordLastSet`
This helps identify stale accounts or users who may be ignoring password rotation policies, indicating a potential vulnerability.

Step-by-step guide:

1. Execute the command in PowerShell.

  1. To find users who haven’t changed their password in over a year, pipe the output to a `Where-Object` clause:
    `Get-ADUser -Filter -Properties PasswordLastSet | Where-Object {$_.PasswordLastSet -lt (Get-Date).AddDays(-365)} | Select-Object Name, SamAccountName, PasswordLastSet`

4. Auditing for Empty Passwords Using Command Prompt

`net user [bash]`

While rare, accounts with empty passwords are a catastrophic finding. This native command quickly checks the status of a specific account.

Step-by-step guide:

1. Open Command Prompt as administrator.

  1. To check a user, type: `net user john.doe`
    3. Review the output. Under “User may change password” you will see “Yes” or “No”. More importantly, if the password is truly empty, it may be evident, though this command alone is not sufficient for a full audit.

5. Leveraging Specops Password Auditor for Deep Analysis

The LinkedIn post highlights Specops Password Auditor (https://lnkd.in/eqFyQwyi), a free tool that automates and extends these checks far beyond native capabilities.

Step-by-step guide:

  1. Download and install the tool from the official website.
  2. Run the application with a user account that has read-access to the AD domain.
  3. The tool will automatically scan and generate reports on:

– Password Reuse: Identifying if user and admin accounts share passwords.
– Dictionary Attacks: Finding passwords susceptible to simple wordlist attacks.
– Breached Passwords: Checking hashes against known breach databases.
– Blank Passwords: Comprehensively identifying this critical risk.
4. Use the detailed reports to prioritize remediation efforts.

  1. Simulating Attackers with Hash Extraction (For Mitigation Testing)

`mimikatz sekurlsa::logonpasswords`

Note: This command from the Mimikatz toolkit should only be run in a controlled lab environment on systems you own for defensive and educational purposes. It demonstrates how an attacker extracts NTLM/LM hashes from memory.

Step-by-step guide (Lab Use Only):

  1. Download Mimikatz and open an administrative command prompt.
  2. Navigate to the Mimikatz directory and run mimikatz.exe.
  3. In the Mimikatz terminal, execute the command: `sekurlsa::logonpasswords`
    4. Observe the output, which displays hashes and sometimes plaintext passwords cached in memory. This highlights the critical need for Credential Guard and restricting local admin privileges.

  4. Mitigation: Enforcing Stronger Policies with Fine-Grained Password Policies
    `New-ADFineGrainedPasswordPolicy -Name “StrictPolicy” -Precedence 1 -MinPasswordLength 14 -PasswordHistoryCount 24 -LockoutDuration 00:30:00 -LockoutThreshold 5 -LockoutObservationWindow 00:30:00 -ComplexityEnabled $true -ReversibleEncryptionEnabled $false`
    PowerShell allows the creation of Fine-Grained Password Policies (FGPP) to apply stricter rules to privileged groups.

Step-by-step guide:

  1. In administrative PowerShell, run the command with your desired parameters to create a new policy.
  2. Apply the policy to a group (e.g., “Domain Admins”) using:

`Add-ADFineGrainedPasswordPolicySubject -Identity “StrictPolicy” -Subjects “Domain Admins”`

  1. This ensures your most privileged accounts adhere to the highest security standard.

What Undercode Say:

  • Complexity != Strength. A password like “Azerty123456” meets basic complexity but is incredibly weak and will be cracked instantly. Length and unpredictability are far more critical.
  • Visibility is 90% of the Battle. You cannot protect what you cannot see. Automated auditing tools are non-negotiable for modern AD security, providing the actionable data needed to move from assumption to fact.
    The analysis reveals a significant gap between compliance-checking and genuine security hardening. Relying solely on native AD tools leaves dangerous blind spots. The recommendation to couple a tool like Specops with PingCastle is sound, creating a layered audit strategy that covers both password health and overall AD configuration hygiene. The ultimate goal is to shift from reactive password expiration to proactive prevention of weak, reused, and breached credentials.

Prediction:

The future of AD attacks will leverage AI to analyze company-specific data from breaches (e.g., employee names, projects, terminology) to generate hyper-targeted wordlists for password spraying, making traditionally “complex” passwords even more vulnerable. Defensively, AI-powered authentication anomaly detection will become standard, and passwordless authentication using FIDO2 keys will see rapid enterprise adoption, radically reducing the attack surface that password audits aim to protect.

🎯Let’s Practice For Free:

IT/Security Reporter URL:

Reported By: Yohann Bauzil – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅

🔐JOIN OUR CYBER WORLD [ CVE News • HackMonitor • UndercodeNews ]

💬 Whatsapp | 💬 Telegram

📢 Follow UndercodeTesting & Stay Tuned:

𝕏 formerly Twitter 🐦 | @ Threads | 🔗 Linkedin | 🦋BlueSky

Related Posts: