OpenVoiceOS Security

Securing SSH

Most of our guides have you create a user called ovos with a password of ovos, while this makes install easy, it's VERY insecure. As soon as possible, you should secure ssh using a key and disable password authentication.

When connecting from a Linux or MacOS client

Create a keyfile (you can change ovos to whatever you want)

ssh-keygen -t ed25519 -f ~/.ssh/ovos

Copy to host (use the same filename as above, specify the user and hostname you are using)

ssh-copy-id -i ~/.ssh/ovos  ovos@mycroft

On your dekstop, edit ~/.ssh/config and add the following lines

Host rp2
  user ovos
  IdentityFile ~/.ssh/ovos

On your ovos system, edit /etc/ssh/sshd_config and add or uncomment the following line:

PasswordAuthentication no

restart sshd or reboot

sudo systemctl restart sshd

Message Bus Security

Anything connected to the bus can fully control OVOS, and OVOS usually has full control over the whole system!

You can read more about the security issues over at Nhoya/MycroftAI-RCE

in mycroft-core all skills share a bus connection, this allows malicious skills to manipulate it and affect other skills

you can see a demonstration of this problem with BusBrickerSkill

"shared_connection": false ensures each skill gets its own websocket connection and avoids this problem

Additionally, it is recommended you change "host": "", this will ensure no outside world connections are allowed