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Add --nosocket=session-bus and --nosocket=system-bus
Signed-off-by: Tommy <contact@tommytran.io>
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@ -102,8 +102,8 @@ Some sandboxing solutions for desktop Linux distributions do exist; however, the
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You can restrict applications further by setting [Flatpak overrides](https://docs.flatpak.org/en/latest/flatpak-command-reference.html#flatpak-override). This can be done with the command line or by using [Flatseal](https://github.com/tchx84/Flatseal). To deny common dangerous Flatpak permissions globally, run the following commands:
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```bash
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sudo flatpak override --system --nosocket=x11 --nosocket=fallback-x11 --nosocket=pulseaudio --unshare=network --unshare=ipc --nofilesystem=host:reset --nodevice=input --nodevice=shm --nodevice=all --no-talk-name=org.freedesktop.Flatpak --no-talk-name=org.freedesktop.systemd1 --no-talk-name=ca.desrt.dconf --no-talk-name=org.gnome.Shell.Extensions
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flatpak override --user --nosocket=x11 --nosocket=fallback-x11 --nosocket=pulseaudio --unshare=network --unshare=ipc --nofilesystem=host:reset --nodevice=input --nodevice=shm --nodevice=all --no-talk-name=org.freedesktop.Flatpak --no-talk-name=org.freedesktop.systemd1 --no-talk-name=ca.desrt.dconf --no-talk-name=org.gnome.Shell.Extensions
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sudo flatpak override --system --nosocket=x11 --nosocket=fallback-x11 --nosocket=pulseaudio --nosocket=session-bus --nosocket=system-bus --unshare=network --unshare=ipc --nofilesystem=host:reset --nodevice=input --nodevice=shm --nodevice=all --no-talk-name=org.freedesktop.Flatpak --no-talk-name=org.freedesktop.systemd1 --no-talk-name=ca.desrt.dconf --no-talk-name=org.gnome.Shell.Extensions
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flatpak override --user --nosocket=x11 --nosocket=fallback-x11 --nosocket=pulseaudio --nosocket=session-bus --nosocket=system-bus --unshare=network --unshare=ipc --nofilesystem=host:reset --nodevice=input --nodevice=shm --nodevice=all --no-talk-name=org.freedesktop.Flatpak --no-talk-name=org.freedesktop.systemd1 --no-talk-name=ca.desrt.dconf --no-talk-name=org.gnome.Shell.Extensions
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```
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To allow Flatseal to function after applying the overrides above, run the following command:
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@ -118,6 +118,8 @@ Some sensitive permissions of note:
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- `--share=network`: network and internet access
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- `--socket=pulseaudio`: the PulseAudio socket, grants access to all audio devices (including inputs)
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- `--socket=session-bus`: access to the entire session bus, which can be used to break out of the sandbox by abusing dangerous D‑Buses.
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- `--socket=system-bus`: access to the entire system bus, which can be used to break out of the sandbox by abusing dangerous D‑Buses.
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- `--device=all`: access to all devices (including webcams)
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- `--talk-name=org.freedesktop.secrets`: D‑Bus access to secrets stored on your keychain
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- `--talk-name=org.freedesktop.Flatpak`: D‑Bus access to run `flatpak run`. This D‑Bus is a sandbox escape.
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