MariaDB must protect its audit features from unauthorized removal.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-253684	MADB-10-002500	SV-253684r841577_rule		Medium

Description
Protecting audit data also includes identifying and protecting the tools used to view and manipulate log data. Therefore, protecting audit tools is necessary to prevent unauthorized operation on audit data. Applications providing tools to interface with audit data will leverage user permissions and roles identifying the user accessing the tools and the corresponding rights the user enjoys to make access decisions regarding the deletion of audit tools. Audit tools include, but are not limited to, vendor-provided and open-source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators.

Description

Protecting audit data also includes identifying and protecting the tools used to view and manipulate log data. Therefore, protecting audit tools is necessary to prevent unauthorized operation on audit data. Applications providing tools to interface with audit data will leverage user permissions and roles identifying the user accessing the tools and the corresponding rights the user enjoys to make access decisions regarding the deletion of audit tools. Audit tools include, but are not limited to, vendor-provided and open-source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators.

STIG	Date
MariaDB Enterprise 10.x Security Technical Implementation Guide	2022-08-24

Details

Check Text ( C-57136r841575_chk )
Determine if the MariaDB Enterprise Audit plugin is logging to a file or syslog. MariaDB> SHOW GLOBAL VARIABLES LIKE 'server_audit_output_type'; If FILE, find the location of the audit log: MariaDB> SHOW GLOBAL VARIABLES LIKE 'server_audit_file_path'; If FILE, check the permission of the file: $ sudo ls -al /path/to/audit.log Consult the organization's security guide on acceptable permissions and ownership of logs with respect to who can modify them. Verify the log files have the set configurations. If the permissions are not set to the organization's standards, this is a finding. If the MariaDB server is configured to use syslog for logging, consult the organization's syslog setting for permissions and ownership of logs with respect to who can modify them.

Check Text ( C-57136r841575_chk )

Determine if the MariaDB Enterprise Audit plugin is logging to a file or syslog.

MariaDB> SHOW GLOBAL VARIABLES LIKE 'server_audit_output_type';

If FILE, find the location of the audit log:

MariaDB> SHOW GLOBAL VARIABLES LIKE 'server_audit_file_path';

If FILE, check the permission of the file:

$ sudo ls -al /path/to/audit.log

Consult the organization's security guide on acceptable permissions and ownership of logs with respect to who can modify them. Verify the log files have the set configurations.

If the permissions are not set to the organization's standards, this is a finding.

If the MariaDB server is configured to use syslog for logging, consult the organization's syslog setting for permissions and ownership of logs with respect to who can modify them.

Fix Text (F-57087r841576_fix)
If the audit.log file permissions do not comply with organization's standards, change the permissions. Example: $ chown user:group /path/to/audit.log $ chmod 660 /path/to/audit.log If the MariaDB server is configured to use syslog for logging, consult the organization's syslog setting for permissions and ownership of logs with respect to who can modify them.