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25 lines
785 B
YAML
25 lines
785 B
YAML
id: spoofable-spf-records-ptr
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info:
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name: Spoofable SPF Records with PTR Mechanism
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author: binaryfigments
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severity: info
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description: SPF records in DNS containing a PTR mechanism are spoofable.
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reference:
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- https://www.digitalocean.com/community/tutorials/how-to-use-an-spf-record-to-prevent-spoofing-improve-e-mail-reliability
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classification:
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cwe-id: CWE-200
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metadata:
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max-request: 1
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tags: dns,spf,discovery
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dns:
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- name: "{{FQDN}}"
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type: TXT
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matchers:
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- type: word
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words:
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- "v=spf1"
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- " ptr "
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condition: and
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# digest: 4a0a0047304502200b6d8acb41b41527a0a28b3eb1520883e46a9052e783672192350a431f6c1a9e02210088d3135e773f2831f15df45e53d841f81056bdcffa4d1b3e9b31bc279dd3a60a:922c64590222798bb761d5b6d8e72950 |