Files
ansible-collection-hardening/roles/mysql_hardening/tasks/mysql_secure_installation.yml
T
Sebastian Gumprich 0bf528d83b do not try to drop roles in mysql hardening
There's a new feature in mariadb 10.1 (https://mariadb.org/grant-to-public-in-mariadb/) and mysql 8 (need to verify).

    MariaDB has quite a complex privilege system. Most of it is based on the SQL Standard spec; however we do have some specific MariaDB extensions. GRANT ... TO PUBLIC (MDEV-5215) is a standard feature that is now available as a preview in MariaDB 10.11.0. It is related to ROLES and DEFAULT ROLE, but it covers a different use case.

    ROLES are effectively “privilege packages” that you can enable and disable as a user. One can also set which “privilege package” will be enabled at connect time by setting a DEFAULT ROLE per user. This is all quite useful, however it is missing one key feature. For a DBA, it would be quite useful to state only once that all users need to have a certain set of privileges. This is where GRANT ... TO PUBLIC comes in.

Some more information here: https://mariadb.org/wp-content/uploads/2018/07/MariaDB-Roles-Tampere-Unconference-2018.pdf

This role is shown as a user, it has however a new is_role-flag.

MariaDB [(none)]> select user, host, is_role from mysql.user;
+-----------------------+-----------+---------+
| User                  | Host      | is_role |
+-----------------------+-----------+---------+
| mariadb.sys           | localhost | N       |
| root                  | localhost | N       |
| mysql                 | localhost | N       |
| PUBLIC                |           | Y       |
| monitoring            | %         | N       |
| monitoring            | localhost | N       |
| galera_mariadb_backup | %         | N       |
+-----------------------+-----------+---------+

Since this "user" does not have a password or authentication_string, the ansible-role tries to delete it but fails.

Signed-off-by: Sebastian Gumprich <[email protected]>
2023-11-11 15:34:33 +01:00

97 lines
3.4 KiB
YAML

---
- name: Fail the role if the mysql root password was not set
ansible.builtin.fail:
msg: ERROR - you have to change default mysql_root_password
when: mysql_root_password == '-----====>SetR00tPa$$wordH3r3!!!<====-----'
- name: Ensure that the root password is present
community.mysql.mysql_user:
name: root
host_all: true
password: "{{ mysql_root_password | mandatory }}"
state: present
login_unix_socket: "{{ login_unix_socket | default(omit) }}"
- name: Install .my.cnf with credentials
ansible.builtin.template:
src: my.cnf.j2
dest: "{{ mysql_user_home }}/.my.cnf"
mode: "0400"
tags: my_cnf
- name: Ensure that the test database is absent
community.mysql.mysql_db:
name: test
state: absent
login_unix_socket: "{{ login_unix_socket | default(omit) }}"
when: mysql_remove_test_database
- name: Ensure that anonymous users are absent
community.mysql.mysql_user:
name: ""
state: absent
host_all: true
login_unix_socket: "{{ login_unix_socket | default(omit) }}"
when: mysql_remove_anonymous_users
- name: Ensure that root can only login from localhost
community.mysql.mysql_query:
query: >
DELETE
FROM mysql.user
WHERE USER='root'
AND HOST NOT IN ('localhost',
'127.0.0.1',
'::1');
login_unix_socket: "{{ login_unix_socket | default(omit) }}"
when: mysql_remove_remote_root
- name: Get all users that have no authentication_string on MySQL version >= 5.7.6 or Mariadb version >= 10.4.0
community.mysql.mysql_query:
query: >
SELECT CONCAT(QUOTE(USER), '@', QUOTE(HOST)) AS user
FROM mysql.user
WHERE (length(authentication_string)=0
OR authentication_string="")
AND USER NOT IN ('mysql.sys',
'mysqlxsys',
'mariadb.sys')
AND IS_ROLE='N';
login_unix_socket: "{{ login_unix_socket | default(omit) }}"
register: mysql_users_wo_passwords_or_auth_string
check_mode: false
when: >
(mysql_distribution == "mysql" and mysql_version.version.full is version('5.7.6', '>=')) or
(mysql_distribution == "mariadb" and mysql_version.version.full
is version('10.4.0', '>='))
- name: Get all users that have no password or authentication_string on MySQL version < 5.7.6 or Mariadb version < 10.4.0
community.mysql.mysql_query:
query: >
SELECT CONCAT(QUOTE(USER), '@', QUOTE(HOST)) AS user
FROM mysql.user
WHERE (length(password)=0
OR password="")
AND (length(authentication_string)=0
OR authentication_string="")
AND USER NOT IN ('mysql.sys',
'mysqlxsys',
'mariadb.sys')
AND IS_ROLE='N';
login_unix_socket: "{{ login_unix_socket | default(omit) }}"
register: mysql_users_wo_passwords
check_mode: false
when: >
(mysql_distribution == "mysql" and mysql_version.version.full is version('5.7.6', '<')) or
(mysql_distribution == "mariadb" and mysql_version.version.full is
version('10.4.0', '<'))
- name: Ensure that there are no users without password or authentication_string
community.mysql.mysql_query:
query:
- DROP USER {{ item.user }}
login_unix_socket: "{{ login_unix_socket | default(omit) }}"
with_community.general.flattened:
- "{{ mysql_users_wo_passwords.query_result | default([]) }}"
- "{{ mysql_users_wo_passwords_or_auth_string.query_result | default([]) }}"