MADB-10-007400 - MariaDB must provide a warning to appropriate support staff when allocated audit record storage volume reaches 75 percent of maximum audit record storage capacity.

Information

Organizations are required to use a central log management system, so, under normal conditions, the audit space allocated to the DBMS on its own server will not be an issue. However, space will still be required on the MariaDB server for audit records in transit, and, under abnormal conditions, this could fill up. Since a requirement exists to halt processing upon audit failure, a service outage would result.

If support personnel are not notified immediately upon storage volume utilization reaching 75 percent, they are unable to plan for storage capacity expansion.

The appropriate support staff include, at a minimum, the ISSO and the DBA/SA.

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

Solution

Configure the system to notify appropriate support staff immediately upon storage volume utilization reaching 75 percent.

MariaDB does not monitor storage, however, it is possible to monitor storage with a script.

##### Example Monitoring Script

#!/bin/bash

DATADIR=/var/lib/psql/mysql
CURRENT=$(df ${DATADIR?} | grep / | awk '{ print $5}' | sed 's/%//g')
THRESHOLD=75

if [ '$CURRENT' -gt '$THRESHOLD' ] ; then
mail -s 'Disk Space Alert' [email protected] << EOF
The data directory volume is almost full. Used: $CURRENT
%EOF
fi

Schedule this script in cron to run around the clock.

Item Details

Audit Name: DISA MariaDB Enterprise 10.x v2r4 DB

Category: AUDIT AND ACCOUNTABILITY

Plugin: MySQLDB

Control ID: f0b784829427f08743130a5d5f7e6e4b090b443d2cf21ac86726edc86d0e37d7

Detections

Analytics

MADB-10-007400 - MariaDB must provide a warning to appropriate support staff when allocated audit record storage volume reaches 75 percent of maximum audit record storage capacity.

Information

Solution

See Also

Item Details