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🛡️ Google Storage Bucket Uniform Bucket-Level Access is not enabled🟢

Logic​

Similar Policies​

Description​

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Description​

It is recommended that uniform bucket-level access is enabled on Cloud Storage buckets.

Rationale​

It is recommended to use uniform bucket-level access to unify and simplify how you grant access to your Cloud Storage resources.

Cloud Storage offers two systems for granting users permission to access your buckets and objects: Cloud Identity and Access Management (Cloud IAM) and Access Control Lists (ACLs). These systems act in parallel - in order for a user to access a Cloud Storage resource, only one of the systems needs to grant the user permission. Cloud IAM is used throughout Google Cloud and allows you to grant a variety of permissions at the bucket and project levels. ACLs are used only by Cloud Storage and have limited permission options, but they allow you to grant permissions on a per-object basis.

In order to support a uniform permissioning system, Cloud Storage has uniform bucket-level access. Using this feature disables ACLs for all Cloud Storage resources: access to Cloud Storage resources then is granted exclusively through Cloud IAM. Enabling uniform bucket-level access guarantees that if a Storage bucket is not publicly accessible, no object in the bucket is publicly accessible either.

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Remediation​

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Remediation​

From Google Cloud Console​

  1. Open the Cloud Storage browser in the Google Cloud Console by visiting: https://console.cloud.google.com/storage/browser
  2. In the list of buckets, click on the name of the desired bucket.
  3. Select the Permissions tab near the top of the page.
  4. In the text box that starts with This bucket uses fine-grained access control..., click Edit.
  5. In the pop-up menu that appears, select Uniform.
  6. Click Save.

From Google Cloud CLI​

Use the on option in a uniformbucketlevelaccess set command:

        gsutil uniformbucketlevelaccess set on gs://BUCKET_NAME/

policy.yaml​

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Linked Framework Sections​

SectionSub SectionsInternal RulesPoliciesFlagsCompliance
💼 CIS GCP v1.2.0 → 💼 5.2 Ensure that Cloud Storage buckets have uniform bucket-level access enabled - Level 2 (Automated)1no data
💼 CIS GCP v1.3.0 → 💼 5.2 Ensure That Cloud Storage Buckets Have Uniform Bucket-Level Access Enabled - Level 2 (Automated)1no data
💼 CIS GCP v2.0.0 → 💼 5.2 Ensure That Cloud Storage Buckets Have Uniform Bucket-Level Access Enabled - Level 2 (Automated)1no data
💼 CIS GCP v3.0.0 → 💼 5.2 Ensure That Cloud Storage Buckets Have Uniform Bucket-Level Access Enabled - Level 2 (Automated)1no data
💼 Cloudaware Framework → 💼 Secure Access57no data
💼 FedRAMP High Security Controls → 💼 AC-3 Access Enforcement (L)(M)(H)3768no data
💼 FedRAMP High Security Controls → 💼 AC-5 Separation of Duties (M)(H)15no data
💼 FedRAMP High Security Controls → 💼 AC-6 Least Privilege (M)(H)81157no data
💼 FedRAMP High Security Controls → 💼 MP-2 Media Access (L)(M)(H)13no data
💼 FedRAMP Low Security Controls → 💼 AC-3 Access Enforcement (L)(M)(H)68no data
💼 FedRAMP Low Security Controls → 💼 MP-2 Media Access (L)(M)(H)13no data
💼 FedRAMP Moderate Security Controls → 💼 AC-3 Access Enforcement (L)(M)(H)68no data
💼 FedRAMP Moderate Security Controls → 💼 AC-5 Separation of Duties (M)(H)15no data
💼 FedRAMP Moderate Security Controls → 💼 AC-6 Least Privilege (M)(H)657no data
💼 FedRAMP Moderate Security Controls → 💼 MP-2 Media Access (L)(M)(H)13no data
💼 ISO/IEC 27001:2022 → 💼 5.10 Acceptable use of information and other associated assets1127no data
💼 ISO/IEC 27001:2022 → 💼 5.15 Access control1431no data
💼 ISO/IEC 27001:2022 → 💼 8.3 Information access restriction1024no data
💼 ISO/IEC 27001:2022 → 💼 8.4 Access to source code822no data
💼 NIST CSF v1.1 → 💼 PR.AC-4: Access permissions and authorizations are managed, incorporating the principles of least privilege and separation of duties1756no data
💼 NIST CSF v2.0 → 💼 PR.AA-05: Access permissions, entitlements, and authorizations are defined in a policy, managed, enforced, and reviewed, and incorporate the principles of least privilege and separation of duties116no data
💼 NIST CSF v2.0 → 💼 PR.DS-10: The confidentiality, integrity, and availability of data-in-use are protected142no data
💼 NIST CSF v2.0 → 💼 PR.IR-01: Networks and environments are protected from unauthorized logical access and usage95no data
💼 NIST SP 800-53 Revision 5 → 💼 AC-3 Access Enforcement15540no data
💼 NIST SP 800-53 Revision 5 → 💼 AC-5 Separation of Duties15no data
💼 NIST SP 800-53 Revision 5 → 💼 AC-6 Least Privilege102350no data
💼 NIST SP 800-53 Revision 5 → 💼 MP-2 Media Access213no data
💼 PCI DSS v3.2.1 → 💼 1.2.1 Restrict inbound and outbound traffic to that which is necessary for the cardholder data environment, and specifically deny all other traffic.1056no data
💼 PCI DSS v4.0.1 → 💼 1.3.1 Inbound traffic to the CDE is restricted.56no data
💼 PCI DSS v4.0.1 → 💼 1.3.2 Outbound traffic from the CDE is restricted.56no data
💼 PCI DSS v4.0 → 💼 1.3.1 Inbound traffic to the CDE is restricted.756no data
💼 PCI DSS v4.0 → 💼 1.3.2 Outbound traffic from the CDE is restricted.56no data
💼 SOC 2 → 💼 CC5.2-3 Establishes Relevant Security Management Process Controls Activities1536no data
💼 SOC 2 → 💼 CC6.1-3 Restricts Logical Access122no data
💼 SOC 2 → 💼 CC6.1-7 Restricts Access to Information Assets1327no data