Ensure All Group Replication Traffic is Secured

How it is checked

Audit method: Manual review

This recommendation cannot be checked automatically. A scan lists it with these instructions when you pass --include-manual.

In MySQL Shell run dba.getCluster().status() and check ssl is not DISABLED, or run SELECT @@group_replication_ssl_mode; DISABLED is a finding; REQUIRED, VERIFY_CA or VERIFY_IDENTITY mean TLS is enforced. Also check group_replication_recovery_use_ssl = ON.

How it is fixed

Fix method: Guidance or infrastructure patch

Create the cluster with memberSslMode REQUIRED/VERIFY_IDENTITY (dba.createCluster(name, {memberSslMode: 'VERIFY_IDENTITY'})) or set group_replication_ssl_mode=REQUIRED and group_replication_recovery_use_ssl=ON on every member.