MADB-10-000700 - MariaDB must be able to generate audit records when privileges/permissions are retrieved.

Information

Under some circumstances, it may be useful to monitor who/what is reading privilege/permission/role information. Therefore, it must be possible to configure auditing to do this. MariaDB makes such information available through an audit log file.

This requirement addresses explicit requests for privilege/permission/role membership information. It does not refer to the implicit retrieval of privileges/permissions/role memberships that MariaDB continually performs to determine if any and every action on the database is permitted.

NOTE: Nessus has not performed this check. Please review the benchmark to ensure target compliance.

Solution

The MariaDB Enterprise Audit plugin can be configured to audit these changes.

Update necessary audit filters to include query_event ALL. Example:

MariaDB> DELETE FROM mysql.server_audit_filters WHERE filtername = 'default';

MariaDB> INSERT INTO mysql.server_audit_filters (filtername, rule)
VALUES ('default',
JSON_COMPACT(
'{
'connect_event': [
'CONNECT',
'DISCONNECT'
],
'query_event': [
'ALL'
]
}'
));

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_MariaDB_Enterprise_10-x_V2R2_STIG.zip

Item Details

Category: AUDIT AND ACCOUNTABILITY

References: 800-53|AU-12c., CAT|II, CCI|CCI-000172, Rule-ID|SV-253672r960885_rule, STIG-ID|MADB-10-000700, Vuln-ID|V-253672

Plugin: MySQLDB

Control ID: 117c3126f4ca5af1394b604fbbf002308b800c574f483d19ca236354eb49b1fd