HARICA: Anomaly in OCSP services after CA software upgrade
HARICA identified an issue with its OCSP services following a CA software upgrade, which resulted in newly issued certificates containing non-compliant OCSP responses. Specifically, the `nextUpdate` value for these responses exceeded the allowed duration, violating TLS BRs. The problem affected 161 TLS certificates, leading to connectivity issues for relying parties. HARICA quickly addressed the issue by fixing the code and purging the problematic responses, restoring proper OCSP functionality within hours. The incident prompted a thorough investigation and implementation of additional monitoring controls.
- Investigation initiated after reports of stale OCSP responses.
- Identified issue linked to CA software upgrade on January 16.
- Problematic OCSP responses purged and fix deployed.
- Incident report drafted and Bugzilla case opened.
- Case closed after all action items completed.