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Nuclei Templates

CAA Record

ID: caa-fingerprint

Severity: info

Author: pdteam

Tags: dns,caa

Description

Section titled “Description”

A CAA record was discovered. A CAA record is used to specify which certificate authorities (CAs) are allowed to issue certificates for a domain.

YAML Source

Section titled “YAML Source”
id: caa-fingerprint


info:
  name: CAA Record
  author: pdteam
  severity: info
  description: A CAA record was discovered. A CAA record is used to specify which certificate authorities (CAs) are allowed to issue certificates for a domain.
  reference:
    - https://support.dnsimple.com/articles/caa-record/#whats-a-caa-record
  classification:
    cwe-id: CWE-200
  metadata:
    max-request: 1
  tags: dns,caa


dns:
  - name: "{{FQDN}}"
    type: CAA
    matchers:
      - type: regex
        regex:
          - "IN\\s+CAA\\s+(.+)"


    extractors:
      - type: regex
        group: 1
        regex:
          - 'issue "(.*)"'
          - 'issuewild "(.*)"'
          - 'iodef "(.*)"'
# digest: 490a0046304402201705a3081e6ff79c2094c77820d98f4882aa97ca841d7deeb41e5a70a846ad8e02202c858b7037c3d267add7b14c9993088ea6d7f5e3b64926e580de881f90ce3b48:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “Guide to check the vulnerabilities”

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "dns/caa-fingerprint.yaml"

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