Ensure Passwords are Set for All OceanBase Accounts

CriticalLevel 1Automatedoceanbase

Description

If any account exists without a password (i.e., a null-password account), it reduces the attack cost-attackers only need to guess the username correctly to gain access without requiring a password. Therefore, it is essential to ensure that all OceanBase accounts are configured with passwords to prevent unauthorized malicious users from accessing the database. Runs obclient with the connection options in OB_CONN (default "-h127.0.0.1 -P2881 -uroot@sys"); point it at the MySQL-mode tenant being assessed and supply the password via OB_CONN (-p...) or a [client] section in ~/.my.cnf. Passes when neither mysql.user nor oceanbase.__all_user contains an account with an empty password.

How it is checked

Audit method: SQL query

sql_query

out=$(obclient ${OB_CONN:--h127.0.0.1 -P2881 -uroot@sys} -N -B -e "SELECT (SELECT COUNT(*) FROM mysql.user WHERE LENGTH(password) = 0) + (SELECT COUNT(*) FROM oceanbase.__all_user WHERE LENGTH(passwd) = 0)" 2>/dev/null) || exit 1; printf '%s\n' "$out"

Expected output: 0

How it is fixed

Fix method: Guidance or infrastructure patch

SET PASSWORD FOR <user> = PASSWORD('<strong password>'); for every account returned.

Properties

Operating systems: Any
Tags: oceanbaseauthentication
Reference: CIS OceanBase Enterprise Edition V4 Benchmark v1.0.0 - 4.1.1 Ensure Passwords are Set for All OceanBase Accounts

Check this host

Run this on a machine you are allowed to audit. The scan is read-only.

shell

tmaegis scan --target oceanbase