TMA-YUGABYTEDB-5.7
Ensure the default password is changed for the yugabyte superuser
Description
The yugabyte role is the built-in YSQL superuser in YugabyteDB. By default, it has a well-known password. This default password must be changed before the cluster is deployed to a non-development environment. Leaving the default password in place allows anyone with knowledge of the default to gain full superuser access to all databases in the cluster. The benchmark rates this recommendation Manual; the automated check covers its objective pass criterion. Attempts a ysqlsh login as yugabyte with the default password against PGHOST/PGPORT (default 127.0.0.1:5433); passes only when the login is rejected with an authentication error. A successful login (including trust authentication) fails, an unreachable server fails.
How it is checked
Audit method: Shell command
command -v ysqlsh >/dev/null 2>&1 || exit 1; out=$(PGPASSWORD=yugabyte PGPASSFILE=/dev/null ysqlsh -h "${PGHOST:-127.0.0.1}" -p "${PGPORT:-5433}" -U yugabyte -d yugabyte -w -tAc 'SELECT 1' 2>&1); rc=$?; if [ $rc -eq 0 ]; then echo default_password_accepted; elif printf '%s' "$out" | grep -qi 'authentication failed'; then echo compliant; else exit 1; fi- Expected output
compliant
How it is fixed
Fix method: Guidance or infrastructure patch
ALTER ROLE yugabyte WITH PASSWORD '<new strong password>'; store it in a password vault, and make sure ysql_enable_auth=true (5.6).
Properties
- Operating systems
- Any
- Tags
- yugabytedbauthentication
- Reference
- CIS YugabyteDB Benchmark v2.0.0 - 5.7 Ensure the default password is changed for the yugabyte superuser
Check this host
Run this on a machine you are allowed to audit. The scan is read-only.
tmaegis scan --target yugabytedb