Check: MYS8-00-004500
Oracle MySQL 8.0 STIG:
MYS8-00-004500
(in versions v1 r5 through v1 r1)
Title
The MySQL Database Server 8.0 must generate audit records when unsuccessful accesses to objects occur. (Cat II impact)
Discussion
Without tracking all or selected types of access to all or selected objects (tables, views, procedures, functions, etc.), it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. In a SQL environment, types of access include, but are not necessarily limited to: SELECT INSERT UPDATE DELETE EXECUTE To aid in diagnosis, it is necessary to keep track of failed attempts in addition to the successful ones.
Check Content
Review the system documentation to determine if MySQL Server is required to generate audit records when unsuccessful accesses to objects occur. Check if MySQL audit is configured and enabled. The my.cnf file will set the variable audit_file. To further check, execute the following query: SELECT PLUGIN_NAME, PLUGIN_STATUS FROM INFORMATION_SCHEMA.PLUGINS WHERE PLUGIN_NAME LIKE 'audit%'; The status of the audit_log plugin must be "active". If it is not "active", this is a finding. Review audit filters and associated users by running the following queries: SELECT `audit_log_filter`.`NAME`, `audit_log_filter`.`FILTER` FROM `mysql`.`audit_log_filter`; SELECT `audit_log_user`.`USER`, `audit_log_user`.`HOST`, `audit_log_user`.`FILTERNAME` FROM `mysql`.`audit_log_user`; All currently defined audits for the MySQL server instance will be listed. If no audits are returned, this is a finding. To check if the audit filters in place are generating records to audit when certain objects access is unsuccessful: Connect a user without access to an object. Run a failed query or other failed access types on that object. select * from <schemaname>/<tablename>; Review the audit log by running the Linux command: sudo cat <directory where audit log files are located>/audit.log|egrep <tablename> For example if the values returned by "select @@datadir, @@audit_log_file; " are /usr/local/mysql/data/, audit.log sudo cat /usr/local/mysql/data/audit.log |egrep <tablename> The record will show the failed attempt which is note by a non-zero status value. If the audit event is not present, this is a finding.
Fix Text
Configure the MySQL Database Server to audit when unsuccessful accesses to objects occur. See the supplemental file "MySQL80Audit.sql".
Additional Identifiers
Rule ID: SV-235132r879878_rule
Vulnerability ID: V-235132
Group Title: SRG-APP-000507-DB-000357
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000172 |
The information system generates audit records for the events defined in AU-2 d. with the content defined in AU-3. |
Controls
Number | Title |
---|---|
AU-12 |
Audit Generation |