STIGQter: STIG Summary: Oracle MySQL 8.0 Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 28 Jan 2021:

The MySQL Database Server 8.0 must generate audit records when security objects are modified.

DISA Rule

SV-235115r638812_rule

Vulnerability Number

V-235115

Group Title

SRG-APP-000496-DB-000334

Rule Version

MYS8-00-002800

Severity

CAT II

CCI(s)

• CCI-000172 - The information system generates audit records for the events defined in AU-2 d. with the content defined in AU-3.

Weight

10

Fix Recommendation

If currently required, configure the MySQL Database Server to produce audit records when security objects are modified.

See the supplemental file "MySQL80Audit.sql".

Check Contents

Review the system documentation to determine if MySQL Server is required to audit when security objects are modified.

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 that are in place are generating records when security objects are modified, run the following, which will test auditing without destroying data:
update mysql.global_grants set host='%' where PRIV='XXXX’;

Review the audit log by running the Linux command:
sudo cat <directory where audit log files are located>/audit.log|egrep global_grants
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 global_grants
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 global_grants

The audit data will look similar to the example below:
{ "timestamp": "2020-08-19 21:32:27", "id": 2, "class": "general", "event": "status", "connection_id": 9, "account": { "user": "root", "host": "localhost" }, "login": { "user": "root", "os": "", "ip": "::1", "proxy": "" }, "general_data": { "command": "Query", "sql_command": "update", "query": "update mysql.global_grants set host='%' where PRIV='XXXX'", "status": 0 } }

If the audit event is not present, this is a finding.

Vulnerability Number

V-235115

Documentable

False

Rule Version

MYS8-00-002800

Severity Override Guidance

Review the system documentation to determine if MySQL Server is required to audit when security objects are modified.

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 that are in place are generating records when security objects are modified, run the following, which will test auditing without destroying data:
update mysql.global_grants set host='%' where PRIV='XXXX’;

Review the audit log by running the Linux command:
sudo cat <directory where audit log files are located>/audit.log|egrep global_grants
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 global_grants
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 global_grants

The audit data will look similar to the example below:
{ "timestamp": "2020-08-19 21:32:27", "id": 2, "class": "general", "event": "status", "connection_id": 9, "account": { "user": "root", "host": "localhost" }, "login": { "user": "root", "os": "", "ip": "::1", "proxy": "" }, "general_data": { "command": "Query", "sql_command": "update", "query": "update mysql.global_grants set host='%' where PRIV='XXXX'", "status": 0 } }

If the audit event is not present, this is a finding.

Check Content Reference

M

Target Key

5277

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