rules:
- id: aws-kinesis-stream-unencrypted
  patterns:
  - pattern: |
      resource "aws_kinesis_stream" $ANYTHING {
        ...
      }
  - pattern-not: |
      resource "aws_kinesis_stream" $ANYTHING {
        ...
        encryption_type = "KMS"
        ...
      }
  message: >-
    The AWS Kinesis stream does not encrypt data at rest. The data could be
    read if the Kinesis stream storage layer is compromised. Enable Kinesis stream
    server-side encryption.
  languages:
  - hcl
  severity: WARNING
  metadata:
    category: security
    technology:
    - terraform
    - aws
    owasp:
    - A03:2017 - Sensitive Data Exposure
    - A04:2021 - Insecure Design
    cwe:
    - 'CWE-311: Missing Encryption of Sensitive Data'
    references:
    - https://owasp.org/Top10/A04_2021-Insecure_Design
    - https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/kinesis_stream#encryption_type
    - https://docs.aws.amazon.com/streams/latest/dev/server-side-encryption.html
    subcategory:
    - audit
    likelihood: LOW
    impact: HIGH
    confidence: MEDIUM
    rule-origin-note: published from /src/aws-kinesis-stream-unencrypted.yml in None