Check for Access to System Tables/DBA Views

select grantee,privilege,owner,table_name from dba_tab_privs
where (owner='SYS' or table_name like 'DBA_%')
and privilege <> 'EXECUTE'
and grantee not in ('PUBLIC','AQ_ADMINISTRATOR_ROLE','AQ_USER_ROLE',
'AURORA$JIS$UTILITY$','OSE$HTTP$ADMIN','TRACESVR',
'CTXSYS','DBA','DELETE_CATALOG_ROLE','EXECUTE_CATALOG_ROLE',
'EXP_FULL_DATABASE','GATHER_SYSTEM_STATISTICS','HS_ADMIN_ROLE',
'IMP_FULL_DATABASE','LOGSTDBY_ADMINISTRATOR','MDSYS','ODM',
'OEM_MONITOR','OLAPSYS','ORDSYS','OUTLN','RECOVERY_CATALOG_OWNER',
'SELECT_CATALOG_ROLE','SNMPAGENT','SYSTEM','WKSYS','WKUSER',
'WMSYS','WM_ADMIN_ROLE','XDB','LBACSYS','PERFSTAT','XDBADMIN')
and grantee not in (select grantee from dba_role_privs where granted_role='DBA')
order by grantee;