Automating Wireless Penetration Testing with Claude and Aircrack‑ng MCP

1. Experiment Environment

The attack is performed in an isolated wireless lab. The attacker machine runs Kali Linux (IP 192.168.1.17) with a Realtek RTL8814AU USB wireless adapter (identified as wlan0). Claude Desktop (community edition aaddrick/claude-desktop-debian) and the Aircrack‑ng MCP server ( com/techchipnet/aircrack-mcp) are installed on the same host. Target APs include two lab‑authorized SSIDs (raj, raj_5g) and an iPhone hotspot named Raj.

2. Deploy Aircrack‑ng MCP Repository

Clone the repository from GitHub and make the Python entry point executable:

git clone https://github.com/techchipnet/aircrack-mcp
cd aircrack-mcp
ll
chmod 777 aircrackmcp.py

The directory contains three files: aircrackmcp.py, LICENSE, and README.md. After chmod, the script can be run directly by the interpreter.

3. Configure Password‑less sudo

Aircrack‑ng operations require root privileges. Because Claude Desktop launches the MCP server non‑interactively, a precise NOPASSWD rule is added to /etc/sudoers to allow only the aircrackmcp.py script to run as root:

sudo visudo

kali ALL=(ALL) NOPASSWD: /usr/bin/python3 /home/kali/aircrack-mcp/aircrackmcp.py

4. Configure Claude Desktop

The MCP server is registered in Claude Desktop either via the developer settings UI or by editing the JSON configuration file directly. In the UI, open Settings → Developer → Edit Config to open claude_desktop_config.json. Add an entry under mcpServers:

{
  "mcpServers": {
    "aircrack": {
      "command": "sudo",
      "args": ["python3", "/home/kali/aircrack-mcp/aircrackmcp.py"]
    }
  }
}

The same JSON can be edited directly at ~/.config/Claude/claude_desktop_config.json.

~/.config/Claude/claude_desktop_config.json

5. Verify MCP Server Registration

After saving the configuration and restarting Claude Desktop, the developer settings page shows the server name, command, arguments, and a running badge. If the badge shows failed , view the logs to troubleshoot path errors or sudoers mismatches.

6. Manually Start the Server (Optional)

For debugging, run the server directly:

sudo python3 aircrackmcp.py

7. List Available Tools

Ask Claude to list the MCP commands. The response shows a full toolset covering interface enumeration, monitor mode control, passive discovery, WPA/WPA2 handshake capture, deauthentication, dictionary brute‑force, WEP automation, and rogue AP creation.

list aircrack mcp commands

8. Enumerate Wireless Interfaces

Command:

list_interfaces

The output shows a single USB adapter wlan0 driven by rtw88_8814au, confirming monitor‑mode and injection capability.

9. Enable Monitor Mode

Command:

start_monitor

The server creates wlan0mon and reports two processes (NetworkManager PID 633 and wpa_supplicant PID 1078) that may steal the channel. In a real assessment, these should be killed before proceeding.

10. Scan Nearby Wi‑Fi Networks

Command:

scan all wifi

Three networks are detected: raj and raj_5g on channel 11 (WPA2‑CCMP/PSK) and an iPhone hotspot on channel 6 with signal ‑42 dBm and two associated clients, indicating active traffic suitable for handshake capture.

11. Capture WPA2 Handshake

Command:

capture handshake Raj's iPhone

The resulting raj_iphone_handshake-01.cap is ~88 KB, confirming that the full four‑way handshake was recorded.

12. Crack Handshake with rockyou.txt

Command:

crack_wifi with dictionary rockyou.txt

The password is recovered instantly as 12345678, illustrating the danger of short numeric passwords.

13. Perform Deauthentication Attack

Command:

deauth raj_5g

The client is successfully disconnected, completing the attack chain: interface discovery → monitor mode → scanning → handshake capture → offline cracking → targeted deauth.

14. Defensive Recommendations

Upgrade to WPA3‑SAE to eliminate offline dictionary attacks.

Enforce strong, high‑entropy passwords (12‑16 characters).

Enable protected management frames (802.11w) to block deauth frames.

Disable WPS to remove a known bypass vector.

Isolate guest/IoT devices with separate SSIDs and VLANs.

Monitor for deauth floods using WIDS/WIPS or lightweight tools like Kismet.

Rotate credentials promptly after a suspected compromise.

15. Conclusion

The Aircrack‑ng MCP server wraps a mature, command‑line‑heavy suite into a natural‑language‑driven interface. Every step of the wireless assessment—interface enumeration, monitor mode activation, network scanning, handshake capture, dictionary cracking, and deauthentication—is invoked through Claude Desktop while the MCP server calls the real aircrack‑ng binaries. Operators retain full visibility of commands and outputs, while the AI handles tool selection, parameter construction, and result interpretation, dramatically improving efficiency. The demonstration also highlights that weak WPA2‑PSK passwords are trivially cracked, reinforcing the need for WPA3, strong passwords, protected management frames, and proper network segmentation.