Tailscale: Unauthorized device connected to control plane
Identifies devices actively connected to the Tailscale control plane (ConnectedToControl=true) but not yet authorized by an admin (Authorized=false). Often benign onboarding but can indicate rogue joins.
Detection logic
Detection requirements
- Platform
- ContainersESXiIaaSIdentity ProviderLinuxmacOSNetwork DevicesOffice SuiteSaaSWindows
The rule states no platform. This is derived from the 2 ATT&CK techniques it maps to.
- Log source product
- tailscaleccf
- Log source service
- tailscale_devices_cl
MITRE ATT&CK mappings
0 exclusive techniques.This is coverage no other published rule has; it is not this rule's total technique count.
No references are available for this detection.
From the source
- At source
- Open at source
- Upstream identifier
- a1b2c3d4-5678-9012-3456-789012340042
- Tagged by the source as
- InitialAccessPersistence
Licence
- Published under
- MIT LicenseRead the licence
- Attribution
- Required
- Obtained under
- MITRead the origin licence
Authorship
- Published
- Sep 1, 2026
- Version
- 1