Detections
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MYS8-00-000100 - MySQL Database Server 8.0 must integrate with an organization-level authentication/access mechanism providing account management and automation for all users, groups, roles, and any other principals.

Information

Enterprise environments make account management for applications and databases challenging and complex. A manual process for account management functions adds the risk of a potential oversight or other error. Managing accounts for the same person in multiple places is inefficient and prone to problems with consistency and synchronization.

A comprehensive application account management process that includes automation helps to ensure accounts designated as requiring attention are consistently and promptly addressed.

Examples include, but are not limited to, using automation to take action on multiple accounts designated as inactive, suspended, or terminated, or by disabling accounts located in non-centralized account stores, such as multiple servers. Account management functions can also include: assignment of group or role membership; identifying account type; specifying user access authorizations (i.e., privileges); account removal, update, or termination; and administrative alerts. The use of automated mechanisms can include, for example: using email or text messaging to notify account managers when users are terminated or transferred; using the information system to monitor account usage; and using automated telephone notification to report atypical system account usage.

The DBMS must be configured to automatically utilize organization-level account management functions, and these functions must immediately enforce the organization's current account policy.

Automation may be comprised of differing technologies that when placed together contain an overall mechanism supporting an organization's automated account management requirements.

NOTE: Nessus has provided the target output to assist in reviewing the benchmark to ensure target compliance.

Solution

Integrate MySQL database server 8.0 security with an organization-level authentication/access mechanism using MySQL external authentication for Microsoft AD or LDAP, or Linux PAMs thus providing account management for all users, groups, roles, and any other principals.

If native mysql users are required, document the need and justification; describe the measures taken to ensure the use of MySQL Server authentication is kept to a minimum; describe the measures taken to safeguard passwords; list or describe the MySQL logins used.

For each MySQL database server 8.0 managed account that is not documented and approved, either transfer it to management by the external mechanism, or document the need for it and obtain approval, as appropriate.

Install appropriate external authentication plugin, for example to install LDAP.
INSTALL PLUGIN authentication_ldap_sasl
 SONAME 'authentication_ldap_sasl.so';
INSTALL PLUGIN authentication_ldap_simple
 SONAME 'authentication_ldap_simple.so';

Configure the plugin, for example:
SET PERSIST authentication_ldap_sasl_server_host='127.0.0.1';
SET PERSIST authentication_ldap_sasl_bind_base_dn='dc=example,dc=com';
SET PERSIST authentication_ldap_simple_server_host='127.0.0.1';
SET PERSIST authentication_ldap_simple_bind_base_dn='dc=example,dc=com';

Create users with proper organizational mapping, for example:
CREATE USER 'betsy'@'localhost'
 IDENTIFIED WITH authentication_ldap_simple
 BY 'uid=betsy_ldap,ou=People,dc=example,dc=com';

Assign appropriate permissions via grants on objects or to roles, etc. See https://dev.mysql.com/doc/refman/8.0/en/grant.html.
For example:
GRANT ALL ON db1.* TO 'betsy'@'localhost';
GRANT 'role1', 'role2' TO 'user1'@'localhost', 'user2'@'localhost';
GRANT SELECT ON world.* TO 'role3';

For accounts not required in the MySQL Server:
DROP USER <user_name>;

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Oracle_MySQL_8-0_V2R1_STIG.zip

Item Details

Category: ACCESS CONTROL

References: 800-53|AC-2(1), CAT|I, CCI|CCI-000015, Rule-ID|SV-235095r960768_rule, STIG-ID|MYS8-00-000100, Vuln-ID|V-235095

Plugin: MySQLDB

Control ID: cadf081a4fc06e705c6f80cd3e3d6c8e1ce81fce1408d1445601df8dba11b4f6