Remediation

From Google Cloud Console

1. Go to the Cloud SQL Instances page in the Google Cloud Console by visiting https://console.cloud.google.com/sql/instances.
2. Click the instance name to open its Instance details page.
3. Under the Configuration section click Edit configurations.
4. Under Configuration options expand the Connectivity section.
5. Click the delete icon for the authorized network 0.0.0.0/0.
6. Click Save to update the instance.

From Google Cloud CLI

Update the authorized network list by removing any public addresses.

gcloud sql instances patch {{instance-name}} \
    --authorized-networks={{ip-addr1}},{{ip-addr2}}