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bloodyad-mcp

This project is a wrapper for the excellent bloodyAD tool.

A Model Context Protocol (MCP) server that acts as a wrapper for bloodyAD, allowing flexible and automated Active Directory enumeration and abuse from Claude Desktop, Gemini-CLI, or other MCP frontends.

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Purpose

This server exposes bloodyAD commands through simple Python functions, facilitating the enumeration, extraction, and abuse of Active Directory objects directly from your AI assistant or MCP environment, without the need to manually execute the bloodyAD CLI.

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Features

Get Operations

• bloodyad_get_object — Retrieves LDAP object attributes, with an option to resolve SD.
• bloodyad_get_children — Lists children of an object (users, groups, computers, OUs).
• bloodyad_get_dnsdump — Extracts AD-integrated DNS zones.
• bloodyad_get_membership — Gets groups to which the target belongs.
• bloodyad_get_writable — Lists objects over which the authenticated user has write permissions.
• bloodyad_get_search — Performs advanced searches in the LDAP database.
• bloodyad_get_trusts — Displays domain trusts in an ASCII tree.
• bloodyad_get_bloodhound — BloodHound CE collector.

Set Operations

• bloodyad_set_object — Adds/Replaces/Deletes attributes of an object.
• bloodyad_set_owner — Changes the ownership of an object.
• bloodyad_set_password — Changes the password of a user/computer.
• bloodyad_set_restore — Restores a deleted object.

Add Operations

• bloodyad_add_computer — Adds a new computer.
• bloodyad_add_dcsync — Adds the DCSync right to a trustee in the domain.
• bloodyad_add_dnsRecord — Adds a new DNS record.
• bloodyad_add_genericAll — Grants full control (GenericAll) to a trustee over an object.
• bloodyad_add_groupMember — Adds a member (user, group, computer) to a group.
• bloodyad_add_rbcd — Adds Resource Based Constrained Delegation (RBCD) for a service on an object.
• bloodyad_add_shadowCredentials — Adds Key Credentials (Shadow Credentials) to an object.
• bloodyad_add_uac — Adds User Account Control (UAC) flags to an object.
• bloodyad_add_user — Adds a new user.
• bloodyad_add_badSuccessor — Adds a bad successor to the dMSA.

Remove Operations

• bloodyad_remove_dcsync — Removes the DCSync right for a trustee.
• bloodyad_remove_dnsRecord — Removes a DNS record from an AD environment.
• bloodyad_remove_genericAll — Removes full control (GenericAll) of a trustee over an object.
• bloodyad_remove_groupMember — Removes a member from a group.
• bloodyad_remove_object — Removes an object (user, group, computer, organizational unit, etc.).
• bloodyad_remove_rbcd — Removes Resource Based Constrained Delegation (RBCD) for a service.
• bloodyad_remove_shadowCredentials — Removes Key Credentials (Shadow Credentials) from an object.
• bloodyad_remove_uac — Removes User Account Control (UAC) flags from an object.

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Prerequisites

Before you begin, ensure you have the following:

• Docker Desktop: Installed and running on your system.
• MCP Toolkit: Enabled within Docker Desktop.
• AI Assistant: An AI assistant that supports MCP, such as Gemini-CLI or Claude Desktop.
• Internet Access: Required during the Docker image build process to clone bloodyAD.
• VPN/Network Access: To the target Active Directory Domain Controller (DC).
• jq (for Linux users): A lightweight and flexible command-line JSON processor. If you are on Linux, you might need to install it:
  • Debian/Ubuntu: sudo apt-get install jq
  • Fedora: sudo dnf install jq
  • Arch Linux: sudo pacman -S jq

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Installation and Setup

Click on the image to watch the installation tutorial video.

Follow these steps to set up and run the bloodyad-mcp server:

1. Clone the Repository:

   git clone https://github.com/dcollaoa/bloodyad_mcp.git
   cd bloodyad-mcp
   

2. Run the Setup Script: Execute the appropriate script for your operating system. These scripts will build the Docker image, configure the MCP catalog, and update your Gemini settings.

   • For Windows Users:

     .\run.ps1
     

     This script will guide you through the Docker image build, MCP configuration, and Gemini settings.json update.

   • For Linux (or WSL) Users:

     chmod +x run.sh
     ./run.sh
     

     This script will perform the same setup steps as the PowerShell script. Remember to make it executable first.

   • For macOS Users:

     chmod +x run_macos.sh
     ./run_macos.sh
     

     This script will perform the same setup steps as the PowerShell script, adapted for macOS. Remember to make it executable first.

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Usage Examples

You can launch in Claude Desktop, Gemini-CLI, etc.:

# Get object attributes (e.g., objectSid of the domain)
print(default_api.bloodyad_get_object(target='DC=fluffy,DC=htb', attr='objectSid', user='fluffy.htb\svc_mssql', password='MssqlService01!', host='dc01.fluffy.htb'))

# List child objects of a domain
print(default_api.bloodyad_get_children(target='DC=fluffy,DC=htb', otype='domain', user='fluffy.htb\svc_mssql', password='MssqlService01!', host='dc01.fluffy.htb'))

# Dump DNS records for a zone
print(default_api.bloodyad_get_dnsdump(zone='fluffy.htb', user='fluffy.htb\svc_mssql', password='MssqlService01!', host='dc01.fluffy.htb'))

# Get group memberships for a user
print(default_api.bloodyad_get_membership(target='svc_mssql', user='fluffy.htb\svc_mssql', password='MssqlService01!', host='dc01.fluffy.htb'))

# List writable objects for the authenticated user
print(default_api.bloodyad_get_writable(user='fluffy.htb\svc_mssql', password='MssqlService01!', host='dc01.fluffy.htb'))

# Perform an advanced LDAP search
print(default_api.bloodyad_get_search(base='DC=fluffy,DC=htb', filter='(objectClass=user)', attr='sAMAccountName', user='fluffy.htb\svc_mssql', password='MssqlService01!', host='dc01.fluffy.htb'))

# Change a user's password
print(default_api.bloodyad_set_password(target='CN=TestUser,CN=Users,DC=fluffy,DC=htb', newpass='NewSecurePassword123!', user='fluffy.htb\svc_mssql', password='MssqlService01!', host='dc01.fluffy.htb'))

# Add a new user
print(default_api.bloodyad_add_user(samAccountName='NewUser', newpass='NewUserPass123!', user='fluffy.htb\svc_mssql', password='MssqlService01!', host='dc01.fluffy.htb'))

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Architecture

AI Assistant (Gemini-CLI/Claude Desktop) → MCP Gateway → bloodyad-mcp → bloodyAD CLI (Kali)

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Troubleshooting

• If tools do not appear: check the build, logs, YAML files (custom.yaml, registry.yaml), and restart your AI Assistant.
• If bloodyAD commands fail: check arguments (host, domain, user, password), VPN, reachability to the target machine, and bloodyAD version.

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Security Considerations

• Credentials are passed with each command, not stored or logged.
• The server runs as a non-root user in Docker.
• Output is plain text, identical to bloodyAD's, without emojis or additional markdown formatting.

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License

MIT License