| name | cis-gcp-foundations-6.2.7 |
| description | Ensure 'Log_min_duration_statement' Database Flag for Cloud SQL PostgreSQL Instance Is Set to '-1' (Disabled) |
| category | cis-gcp-foundations |
| version | 4.0.0 |
| author | cyberstrike-official |
| tags | ["cis","gcp","cloud-sql","postgresql"] |
| cis_id | 6.2.7 |
| cis_benchmark | CIS Google Cloud Platform Foundation Benchmark v4.0.0 |
| tech_stack | ["gcp"] |
| cwe_ids | [] |
| chains_with | [] |
| prerequisites | [] |
| severity_boost | {} |
6.2.7 Ensure That the 'Log_min_duration_statement' Database Flag for Cloud SQL PostgreSQL Instance Is Set to '-1' (Disabled) (Automated)
Profile Applicability
Description
The log_min_duration_statement flag defines the minimum amount of execution time of a statement in milliseconds where the total duration of the statement is logged. Ensure that log_min_duration_statement is disabled, i.e., a value of -1 is set.
Rationale
Logging SQL statements may include sensitive information that should not be recorded in logs. This recommendation is applicable to PostgreSQL database instances.
Impact
Turning on logging will increase the required storage over time. Mismanaged logs may cause your storage costs to increase. Setting custom flags via command line on certain instances will cause all omitted flags to be reset to defaults. This may cause you to lose custom flags and could result in unforeseen complications or instance restarts. Because of this, it is recommended you apply these flags changes during a period of low usage.
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.
- Go to the
Configuration card.
- Under
Database flags, check that the value of log_min_duration_statement flag is set to -1.
From Google Cloud CLI
- Use the below command for every Cloud SQL PostgreSQL database instance to verify the value of
log_min_duration_statement is set to -1.
gcloud sql instances describe <INSTANCE_NAME> --format=json| jq '.settings.databaseFlags[] | select(.name=="log_min_duration_statement")|.value'
In the output, database flags are listed under the settings as the collection databaseFlags.
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 PostgreSQL instance where the database flag needs to be enabled.
- Click
Edit.