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30 lines
893 B
YAML
30 lines
893 B
YAML
id: acme-challenge-detect
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info:
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name: ACME DNS Challenge - Detect
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author: rxerium
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severity: info
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description: |
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Detects ACME (Automated Certificate Management Environment) DNS-01 challenge records used by Let's Encrypt and other certificate authorities.
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reference:
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- https://www.rfc-editor.org/rfc/rfc8555
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- https://letsencrypt.org/docs/challenge-types/
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metadata:
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max-request: 1
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tags: dns,acme,letsencrypt,certificate,discovery
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dns:
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- name: "_acme-challenge.{{FQDN}}"
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type: TXT
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matchers:
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- type: regex
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regex:
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- "IN\tTXT"
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- "[A-Za-z0-9_-]{43}"
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extractors:
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- type: regex
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regex:
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- 'TXT\s+"([^"]+)"'
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# digest: 490a0046304402202b8780aa7f0a3f0bbef9582c4b50b02624b7f5a03d893db2d24af28ad08e9c11022035e990db7544711f554a9e13bd4c9f5f22f1903fab31269aff5bfe52f2d5f389:922c64590222798bb761d5b6d8e72950 |