Nuclio: Unsanitized cron trigger event headers/body injected into CronJob shell command leads to persistent RCE

Summary Nuclio controller builds a curl invocation string for each cron trigger and stores it as the args of a Kubernetes CronJob container /bin/sh, -c, . Two fields in the trigger specification flow into this string without adequate sanitization: - event.headers keys — interpolated verbatim insi...