| name | cis-gcp-foundations-6.1.2 |
| description | Ensure 'Skip_show_database' Database Flag for Cloud SQL MySQL Instance Is Set to 'On' |
| category | cis-gcp-foundations |
| version | 4.0.0 |
| author | cyberstrike-official |
| tags | ["cis","gcp","cloud-sql","mysql"] |
| cis_id | 6.1.2 |
| cis_benchmark | CIS Google Cloud Platform Foundation Benchmark v4.0.0 |
| tech_stack | ["gcp"] |
| cwe_ids | [] |
| chains_with | [] |
| prerequisites | [] |
| severity_boost | {} |
6.1.2 Ensure 'Skip_show_database' Database Flag for Cloud SQL MySQL Instance Is Set to 'On' (Automated)
Profile Applicability
Description
It is recommended to set skip_show_database database flag for Cloud SQL Mysql instance to on.
Rationale
skip_show_database database flag prevents people from using the SHOW DATABASES statement if they do not have the SHOW DATABASES privilege. This can improve security if you have concerns about users being able to see databases belonging to other users. Its effect depends on the SHOW DATABASES privilege: If the variable value is ON, the SHOW DATABASES statement is permitted only to users who have the SHOW DATABASES privilege, and the statement displays all database names. If the value is OFF, SHOW DATABASES is permitted to all users, but displays the names of only those databases for which the user has the SHOW DATABASES or other privilege. This recommendation is applicable to Mysql database instances.
Audit
From Google Cloud Console
- Go to the Cloud SQL Instances page in the Google Cloud Console by visiting https://console.cloud.google.com/sql/instances.
- Select the instance to open its
Instance Overview page
- Ensure the database flag
skip_show_database that has been set is listed under the Database flags section.
From Google Cloud CLI
- List all Cloud SQL database Instances
gcloud sql instances list
- Ensure the below command returns
on for every Cloud SQL Mysql database instance
gcloud sql instances describe <INSTANCE_NAME> --format=json | jq '.settings.databaseFlags[] | select(.name=="skip_show_database")|.value'
Remediation
From Google Cloud Console
- Go to the Cloud SQL Instances page in the Google Cloud Console by visiting https://console.cloud.google.com/sql/instances.
- Select the Mysql instance for which you want to enable to database flag.
- Click
Edit.
- Scroll down to the
Flags section.
- To set a flag that has not been set on the instance before, click
Add a Database Flag, choose the flag skip_show_database from the drop-down menu, and set its value to .
