Oracle roles granted using the WITH ADMIN OPTION must not be granted to unauthorized accounts.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-61437	O121-BP-022500	SV-75927r1_rule		Medium

Description
The WITH ADMIN OPTION allows the grantee to grant a role to another database account. Best security practice restricts the privilege of assigning privileges to authorized personnel. Authorized personnel include DBAs, object owners, and, where designed and included in the application's functions, application administrators. Restricting privilege-granting functions to authorized accounts can help decrease mismanagement of privileges and wrongful assignments to unauthorized accounts.

Description

The WITH ADMIN OPTION allows the grantee to grant a role to another database account. Best security practice restricts the privilege of assigning privileges to authorized personnel. Authorized personnel include DBAs, object owners, and, where designed and included in the application's functions, application administrators. Restricting privilege-granting functions to authorized accounts can help decrease mismanagement of privileges and wrongful assignments to unauthorized accounts.

STIG	Date
Oracle Database 12c Security Technical Implementation Guide	2015-12-21

Details

Check Text ( C-62327r1_chk )
A default Oracle Database installation provides a set of predefined administrative accounts and non-administrative accounts. These are accounts that have special privileges required to administer areas of the database, such as the CREATE ANY TABLE or ALTER SESSION privilege, or EXECUTE privileges on packages owned by the SYS schema. The default tablespace for administrative accounts is either SYSTEM or SYSAUX. Non-administrative user accounts only have the minimum privileges needed to perform their jobs. Their default tablespace is USERS. To protect these accounts from unauthorized access, the installation process expires and locks most of these accounts, except where noted below. The database administrator is responsible for unlocking and resetting these accounts, as required. Non-Administrative Accounts - Expired and locked: APEX_PUBLIC_USER, DIP, FLOWS_040100, FLOWS_FILES, MDDATA, ORACLE_OCM, SPATIAL_CSW_ADMIN_USR, SPATIAL_WFS_ADMIN_USR, XS$NULL Administrative Accounts - Expired and Locked: ANONYMOUS, CTXSTS, EXFSYS, LBACSYS, MDSYS, OLAPSYS, OEDDATA, OWBSYS, ORDPLUGINS, ORDSYS, OUTLN, SI_INFORMTN_SCHEMA, WK_TEST, WK_SYS, WKPROXY, WMSYS, XDB Administrative Accounts - Open: DBSNMP, MGMT_VIEW, SYS, SYSMAN, SYSTEM Subject to change based on version installed From SQL*Plus (Note: The owner list below is a short list of all possible default Oracle accounts): select grantee\|\|': '\|\|granted_role from dba_role_privs where grantee not in ('ANONYMOUS','CTXSTS','EXFSYS','LBACSYS','MDSYS','OLAPSYS','OEDDATA', 'OWBSYS','ORDPLUGINS','ORDSYS','OUTLN','SI_INFORMTN_SCHEMA', 'WK_TEST','WK_SYS','WKPROXY','WMSYS','XDB', 'DBSNMP','MGMT_VIEW','SYS','SYSMAN','SYSTEM') and admin_option = 'YES' and grantee not in (select distinct owner from dba_objects) and grantee not in (select grantee from dba_role_privs where granted_role = 'DBA') order by grantee; Review the System Security Plan to confirm any grantees listed are ISSO-authorized DBA accounts or application administration roles. If any grantees listed are not authorized and documented, this is a finding.

Check Text ( C-62327r1_chk )

A default Oracle Database installation provides a set of predefined administrative accounts and non-administrative accounts. These are accounts that have special privileges required to administer areas of the database, such as the CREATE ANY TABLE or ALTER SESSION privilege, or EXECUTE privileges on packages owned by the SYS schema. The default tablespace for administrative accounts is either SYSTEM or SYSAUX. Non-administrative user accounts only have the minimum privileges needed to perform their jobs. Their default tablespace is USERS.

To protect these accounts from unauthorized access, the installation process expires and locks most of these accounts, except where noted below. The database administrator is responsible for unlocking and resetting these accounts, as required.

Non-Administrative Accounts - Expired and locked:
APEX_PUBLIC_USER, DIP, FLOWS_040100*, FLOWS_FILES, MDDATA, ORACLE_OCM, SPATIAL_CSW_ADMIN_USR, SPATIAL_WFS_ADMIN_USR, XS$NULL

Administrative Accounts - Expired and Locked:
ANONYMOUS, CTXSTS, EXFSYS, LBACSYS, MDSYS, OLAPSYS, OEDDATA, OWBSYS, ORDPLUGINS, ORDSYS, OUTLN, SI_INFORMTN_SCHEMA, WK_TEST, WK_SYS, WKPROXY, WMSYS, XDB

Administrative Accounts - Open:
DBSNMP, MGMT_VIEW, SYS, SYSMAN, SYSTEM

* Subject to change based on version installed

From SQL*Plus (Note: The owner list below is a short list of all possible default Oracle accounts):

select grantee||': '||granted_role from dba_role_privs
where grantee not in
('ANONYMOUS','CTXSTS','EXFSYS','LBACSYS','MDSYS','OLAPSYS','OEDDATA',
'OWBSYS','ORDPLUGINS','ORDSYS','OUTLN','SI_INFORMTN_SCHEMA',
'WK_TEST','WK_SYS','WKPROXY','WMSYS','XDB',
'DBSNMP','MGMT_VIEW','SYS','SYSMAN','SYSTEM')
and admin_option = 'YES'
and grantee not in
(select distinct owner from dba_objects)
and grantee not in
(select grantee from dba_role_privs
where granted_role = 'DBA')
order by grantee;

Review the System Security Plan to confirm any grantees listed are ISSO-authorized DBA accounts or application administration roles.

If any grantees listed are not authorized and documented, this is a finding.

Fix Text (F-67353r1_fix)
Revoke assignment of roles with the WITH ADMIN OPTION from unauthorized grantees and re-grant them without the option if required. From SQL*Plus: revoke [role name] from [grantee]; grant [role name] to [grantee]; Restrict use of the WITH ADMIN OPTION to authorized administrators. Document authorized role assignments with the WITH ADMIN OPTION in the System Security Plan.