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 unsuccessful logons or connection attempts occur.

DISA Rule

SV-235126r638812_rule

Vulnerability Number

V-235126

Group Title

SRG-APP-000503-DB-000351

Rule Version

MYS8-00-003900

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 audit when unsuccessful logons or connections attempts occur.

See the supplemental file "MySQL80Audit.sql".

Check Contents

Review the system documentation to determine if MySQL Server is required to audit when unsuccessful logons or connection attempts 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 that are in place are generating records when unsuccessful logons or connection attempts occur:

Log in to MySQL and then log out. For example, using MySQL Shell:
% mysqlsh —sql
MySQL SQL > \connect notauser@localhost
Creating a session to 'notauser@localhost'
Please provide the password for 'notauser@localhost':
MySQL Error 1045: Access denied for user 'notauser'@'localhost' (using password: YES)

Review the audit log by running the Linux command:
Note, "status": 1045 for each indicates failed attempt.

sudo cat <directory where audit log files are located>/audit.log | egrep notauser
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 notauser

The audit data will look similar to the example below:
{ "timestamp": "2020-08-21 17:54:08", "id": 0, "class": "connection", "event": "connect", "connection_id": 20, "account": { "user": "", "host": "localhost" }, "login": { "user": "notauser", "os": "", "ip": "::1", "proxy": "" }, "connection_data": { "connection_type": "plugin", "status": 1045, "db": "" } },

Vulnerability Number

V-235126

Documentable

False

Rule Version

MYS8-00-003900

Severity Override Guidance

Review the system documentation to determine if MySQL Server is required to audit when unsuccessful logons or connection attempts 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 that are in place are generating records when unsuccessful logons or connection attempts occur:

Log in to MySQL and then log out. For example, using MySQL Shell:
% mysqlsh —sql
MySQL SQL > \connect notauser@localhost
Creating a session to 'notauser@localhost'
Please provide the password for 'notauser@localhost':
MySQL Error 1045: Access denied for user 'notauser'@'localhost' (using password: YES)

Review the audit log by running the Linux command:
Note, "status": 1045 for each indicates failed attempt.

sudo cat <directory where audit log files are located>/audit.log | egrep notauser
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 notauser

The audit data will look similar to the example below:
{ "timestamp": "2020-08-21 17:54:08", "id": 0, "class": "connection", "event": "connect", "connection_id": 20, "account": { "user": "", "host": "localhost" }, "login": { "user": "notauser", "os": "", "ip": "::1", "proxy": "" }, "connection_data": { "connection_type": "plugin", "status": 1045, "db": "" } },

Check Content Reference

M

Target Key

5277

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