Check: MYS8-00-002700
Oracle MySQL 8.0 STIG:
MYS8-00-002700
(in versions v1 r5 through v1 r1)
Title
The MySQL Database Server 8.0 must generate audit records when unsuccessful attempts to modify privileges/permissions occur. (Cat II impact)
Discussion
Failed attempts to change the permissions, privileges, and roles granted to users and roles must be tracked. Without an audit trail, unauthorized attempts to elevate or restrict individual and group privileges could go undetected. In an SQL environment, modifying permissions is typically done via the GRANT, REVOKE, and DENY commands. To aid in diagnosis, it is necessary to keep track of failed attempts in addition to the successful ones.
Check Content
Check that MySQL Server Audit is being used for the STIG compliant audit. 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. Determine if rules are in place to capture the following types of commands related to permissions by running: select * from mysql.audit_log_filter; If the template SQL filter was used, it will have the name log_stig. Review the filter values. It will show filters for events of the type of the field general_sql_command.str for the following SQL statement types: grant grant_roles revoke revoke_all revoke_roles drop_role alter_user_default_role create_role drop_role grant_roles revoke_roles set_role create_user alter_user drop_user alter_user alter_user_default_role create_user drop_user rename_user show_create_user
Fix Text
Configure the MySQL Database Server to audit when privileges/permissions are added. Add the following events to the MySQL Server Audit that is being used for the STIG compliance audit: grant grant_roles revoke revoke_all revoke_roles drop_role alter_user_default_role create_role drop_role grant_roles revoke_roles set_role create_user alter_user drop_user alter_user alter_user_default_role create_user drop_user rename_user show_create_user See the supplemental file "MySQL80Audit.sql".
Additional Identifiers
Rule ID: SV-235114r879866_rule
Vulnerability ID: V-235114
Group Title: SRG-APP-000495-DB-000329
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000172 |
The information system generates audit records for the events defined in AU-2 d. with the content defined in AU-3. |
Controls
Number | Title |
---|---|
AU-12 |
Audit Generation |