Detections
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MYS8-00-006000 - The MySQL Database Server 8.0 must be configured to prohibit or restrict the use of organization-defined functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments.

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Information

To prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (i.e., embedding of data types within data types), organizations must disable or restrict unused or unnecessary physical and logical ports/protocols/services on information systems.

Applications are capable of providing a wide variety of functions and services. Some of the functions and services provided by default may not be necessary to support essential organizational operations. Additionally, it is sometimes convenient to provide multiple services from a single component (e.g., email and web services); however, doing so increases risk over limiting the services provided by any one component.

To support the requirements and principles of least functionality, the application must support the organizational requirements providing only essential capabilities and limiting the use of ports, protocols, and/or services to only those required, authorized, and approved to conduct official business or to address authorized quality of life issues.

Database Management Systems (DBMSs) using ports, protocols, and services deemed unsafe are open to attack through those ports, protocols, and services. This can allow unauthorized access to the database and through the database to other components of the information system.

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

Solution

Disable functions, ports, protocols, and services that are not approved.

Change mysql options related to network, ports, and protocols for the server and additionally consider refining further at user account level.

vi my.cnf
[mysqld]
port=<port value>
admin_address=<addr>
admin_port=<port value>
mysqlx_port=<port value>
socket={file_name|pipe_name}

If admin_address is not defined then access via the admin port is disabled.

Additionally the X Plugin can be disabled at startup by either setting mysqlx=0 in the MySQL configuration file, or by passing in either --mysqlx=0 or --skip-mysqlx when starting the MySQL server.
Restart mysqld

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Oracle_MySQL_8-0_V1R5_STIG.zip

Item Details

References: CAT|II, CCI|CCI-000382, Rule-ID|SV-235146r879588_rule, STIG-ID|MYS8-00-006000, Vuln-ID|V-235146

Plugin: MySQLDB

Control ID: 232fb1982bd461575a4c681db51042de8c37d1188bc1ac219aa8e65bd9c19443