Tailscale: Exit node advertised or approved

Identifies when a device starts advertising itself as an exit node, or when an admin approves one. Validate the device and operator - rogue exit nodes can intercept tailnet egress.

Detection logic

Detection requirements

Platform: ESXi Linux macOS Network Devices Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
Log source product: tailscaleccf
Log source service: tailscale_audit_cl

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Detection rules

Tailscale: Exit node advertised or approved

Detection logic

Detection requirements

MITRE ATT&CK mappings

From the source

Licence

Authorship

Detection rules