Mikrotik Captive Autologin

This Node.js script automates logging into Mikrotik captive portal.

To add more security, Mikrotik captive portal appends some random bytes and encodes the transmitted password to MD5. This script retrieves the bytes, appends and encodes the password, then sends it to the captive portal.

Configuration

Install this package with NPM:

npm install -g mikrotik-captive-autologin

Create $HOME/.config/mikrotik-captive-autologin directory and create config.json file inside it, and fill it like this:

[
    {
        "ssid": "<wifi name>",
        "hostname": "<captive portal hostname without http://>",
        "username": "<your username>",
        "password": "<your password>"
    }
]

You can add multiple configurations for different SSIDs.

Then run the script.

mikrotik-captive-autologin

Android Users

If you use this script on Android, you have to grant DUMP permission to the app that executes this script first.

adb shell pm grant <app package name> android.permission.DUMP

Contributors

Thank you so much to Iyxan23 for the idea and helping me out in a lot of things, since my JavaScript and Node.js knowledge is a bit rusty (pun intended).

License

This script is licensed under the MIT License, © 2022 Aldo Adirajasa Fathoni.

md5.js is licensed under the BSD License, © 1999-2002 Paul Johnston.

wifi-name is licensed under the MIT License, © 2015-2017 Kevin Mårtensson.