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Ensure encryption keys are not publicly accessible

### Overview

Category

Controls

High

Applies to

AWSGoogle Cloud

Coverage

2 queries

Asset types

1 covered

Overview

Overview

Cyscale looks for encryption keys that allow unrestricted access from the internet. Using publicly accessible keys, anyone can perform decryption operations which may reveal sensitive data.

Remediation guidance

Depending on the provider and the service you use, check out the following resources:

AWS

Google Cloud

Service-wide remediation

Recommended when many resources are affected: fix the platform baseline first so new resources inherit the secure setting, then remediate the existing flagged resources in batches.

AWS

Use AWS Organizations guardrails, AWS Config rules or conformance packs where they fit, approved account baselines, and IaC modules so new resources inherit the secure setting.

Google Cloud

Use organization or folder policies where available, shared project templates, logs and alerting baselines, and IaC modules so new resources inherit the secure setting.

Operational rollout

  1. Fix the baseline first at the account, subscription, project, cluster, or tenant scope that owns this control.
  2. Remediate the currently affected resources in batches, starting with internet-exposed and production assets.
  3. Re-scan and track approved exceptions with an owner and expiry date.

Query logic

These are the stored checks tied to this control.

Publicly Accessible AWS Keys

Connectors

AWS

Covered asset types

KMSKey

Expected check: eq []

{ kmsKeys( where: { keyPolicy: { statements_SOME: { effect: "Allow" conditions: [] principals_INCLUDES: "AWS|*" } } } ) {...AssetFragment} } 
Publicly Accessible Google Cloud Keys

Connectors

Google Cloud

Covered asset types

KMSKey

Expected check: eq []

{kmsKeys( where: { iamBindings_SOME: { OR: [{ members_INCLUDES: "allAuthenticatedUsers"}, { members_INCLUDES: "allUsers" }] } } ) {...AssetFragment}}
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Cyscale is an agentless cloud-native application protection platform (CNAPP) that automates the contextual analysis of cloud misconfigurations, vulnerabilities, access, and data, to provide an accurate and actionable assessment of risk.

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