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"Invalid CRL Retrieved" and "No Valid CRL" error messages in HTTPS Detect Logs Technical Level
Symptoms
  • When HTTPS Inspection is enabled and traffic is inspected, detect logs for HTTPS traffic show these error messages:
    "Invalid CRL Retrieved"
    "No Valid CRL"
Cause

Revocation validation doesn't work when the certificates chain includes:

  • At least one certificate with CRL DP only
  • At least one certificate with OCSP URL only


Solution
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