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Only authorized system accounts must have the SYSTEM tablespace specified as the default tablespace.


Finding ID Version Rule ID IA Controls Severity
V-219847 O121-BP-023600 SV-219847r401224_rule Medium
The Oracle SYSTEM tablespace is used by the database to store all DBMS system objects. Other use of the system tablespace may compromise system availability and the effectiveness of host system access controls to the tablespace files.
Oracle Database 12c Security Technical Implementation Guide 2022-06-13


Check Text ( C-21558r533078_chk )
Run the query:

select property_name, property_value
from database_properties
where property_name in

If either value is set to SYSTEM, this is a finding.

Run the query:

select username from dba_users
where (default_tablespace = 'SYSTEM' or temporary_tablespace = 'SYSTEM')
and username not in

If any non-default account records are returned, this is a finding.
Fix Text (F-21557r533079_fix)
Create and dedicate tablespaces to support only one application.

Do not share tablespaces between applications.

Do not grant quotas to application object owners on tablespaces not dedicated to their associated application.

Run the queries:

alter database default tablespace ;
alter database default temporary tablespace ;

alter user default tablespace temporary tablespace ;

Replace with the named user account.
Replace with the new default tablespace name.
Replace with the new default temporary tablespace name (typically TEMP).
Repeat the "alter user" for each affected user account.