kingfisher/data/rules/tailscale.yml
Mick Grove 0f953f59a5 pattern_requirements for rules — Post-regex character-class gating to cut false positives without lookarounds. Authors can now require minimum counts of digits, uppercase, lowercase, and special characters, with an optional custom special-char set.
Why: Hyperscan doesn’t support lookaheads/behinds, so many “must contain X and Y” checks had to be baked into the regex (hurting readability) or were impossible. pattern_requirements applies lightweight, in-memory checks after a match is found, keeping patterns fast and clean.
2025-11-04 13:55:31 -05:00

32 lines
827 B
YAML

rules:
- name: Tailscale API Key
id: kingfisher.tailscale.1
pattern: |
(?xi)
\b
(
tskey-[a-z]{3,10}-[A-Z0-9_-]{20,36}
)
\b
pattern_requirements:
min_digits: 2
min_entropy: 3.0
confidence: medium
examples:
- tskey-secret-weRTWSfoeFKI-3480754342kDSFelW3
- tskey-api-weRTWSfoeFKI-3480754342kDSFelW3
references:
- https://tailscale.com/kb/1215/oauth-clients
validation:
type: Http
content:
request:
method: GET
url: https://api.tailscale.com/api/v2/tailnet/-/devices
headers:
Authorization: "Bearer {{ TOKEN }}"
Accept: application/json
response_matcher:
- report_response: true
- type: StatusMatch
status: [200]