Ensure excessive DML privileges are revoked

MoyenneNiveau 1Revue manuelleyugabytedb

Description

DML (insert, update, delete) operations at the table level should be restricted to only authorized users. YugabyteDB manages table-level DML permissions via the GRANT statement.

Méthode de vérification

Méthode d'audit: Revue manuelle

Cette recommandation ne peut pas être vérifiée automatiquement. Une analyse la liste avec ces instructions lorsque vous passez --include-manual.

In each database list users (\du+ *) and tables (\dt *.*) and review table grants (\dp or information_schema.role_table_grants). Any user holding INSERT, UPDATE, DELETE or TRUNCATE on tables it does not need for its role is a finding; revoke with REVOKE <priv> ON <table> FROM <user>.

Méthode de correction

Méthode de correction: Recommandation ou correctif d'infrastructure

If a given database user has been granted excessive DML privileges for a given database table, those privileges should be revoked immediately using the REVOKE YSQL command. Continuing with the example above, remove unauthorized grants for appreader user using the REVOKE statement and verify the Boolean values are now false. yugabyte=# REVOKE INSERT, UPDATE, DELETE ON TABLE customer FROM appreader;

Propriétés

Systèmes d'exploitation: Tous
Étiquettes: yugabytedbprivileges
Référence: CIS YugabyteDB Benchmark v2.0.0 - 4.4 Ensure excessive DML privileges are revoked