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  1. Mesos
  2. MESOS-9810

Reject certificate-less ciphers when certificate verification is enabled

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    Details

    • Type: Task
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 1.9.0
    • Component/s: None
    • Labels:
    • Sprint:
      Mesos Foundations: RI15 Sp 48, Mesos Foundations: RI 15 Sp 49, Mesos Foundations: RI-16 Sp 50
    • Story Points:
      5

      Description

      A TLS server is required by the spec to always send a server certificate, unless an anonymous cipher is used.

      In libprocess, this certificate is verified to be valid and trusted when the flag LIBPROCESS_VERIFY_CERT is set to true.

      However, when an anonymous cipher is used, the server does not present a certificate, meaning the verification step will not happen. If a TLS server would be allowed to use such a cipher, it could trivially sidestep the security provided by certificate verification.

      Therefore, we should always reject connections using anonymous ciphers when certificate verification is enabled.

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              • Assignee:
                Unassigned
                Reporter:
                bennoe Benno Evers
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                Dates

                • Created:
                  Updated:
                  Resolved: