nuclei-templates/dns/spoofable-spf-records-ptr.yaml

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id: spoofable-spf-records-ptr
info:
name: Spoofable SPF Records with PTR Mechanism
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author: binaryfigments
severity: info
description: SPF records in DNS containing a PTR mechanism are spoofable.
reference:
- https://www.digitalocean.com/community/tutorials/how-to-use-an-spf-record-to-prevent-spoofing-improve-e-mail-reliability
classification:
cwe-id: CWE-200
metadata:
max-request: 1
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tags: dns,spf
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dns:
- name: "{{FQDN}}"
type: TXT
matchers:
- type: word
words:
- "v=spf1"
- " ptr "
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condition: and
# digest: 4a0a00473045022100dcb965b47233e3942f4879e832d145cc6ade3ddc990891e0ff365e8209a6aa8302201ecdb55e85d79a9c4e2d585fd8ce7b83e7549fb3bc257be05038e166b73ec1a6:922c64590222798bb761d5b6d8e72950