Missing Certificate Authority Authorization rule

Disclosed: 2017-09-09 17:23:54 By gujjuboy10x00 To gratipay
Unknown
Vulnerability Details
Hi Team, # Summary Certificate Authority Authorization (supported by LetsEncrypt and other CAs) allows a domain owner to specify which Certificate Authorities should be allowed to issue certificates for the domain. All CAA-compliant certificate authorities should refuse to issue a certificate unless they are the CA of record for the target site. This helps reduce the threat of a bad guy tricking a Certificate Authority into issuing a phony certificate for your site. The CAA rule is stored as a DNS resource record of type 257. You can view a domain’s CAA rule using a DNS lookup service: https://caatest.co.uk/gratipay.com gratipay should set a CAA record to help prevent misissuance of a certificate for its domains. https://hackerone.com/reports/129992 Thanks, Vishal
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Report Stats
  • Report ID: 260928
  • State: Closed
  • Substate: informative
  • Upvotes: 1
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