rules:
- id: rds-insecure-password-storage-in-source-code
  pattern-either:
  - patterns:
    - pattern: password = "..."
    - pattern-inside: |
        resource "aws_db_instance" "..." {
          ...
        }
  - patterns:
    - pattern: master_password = "..."
    - pattern-inside: |
        resource "aws_rds_cluster" "..." {
          ...
        }
  languages:
  - hcl
  severity: WARNING
  message: >-
    RDS instance or cluster with hardcoded credentials in source code.
    It is recommended to pass the credentials at runtime, or generate random credentials using the random_password
    resource.
  metadata:
    references:
    - https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/db_instance#master_password
    - https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/rds_cluster#master_password
    - https://registry.terraform.io/providers/hashicorp/random/latest/docs/resources/password
    cwe:
    - 'CWE-522: Insufficiently Protected Credentials'
    category: security
    technology:
    - terraform
    - aws
    owasp:
    - A02:2017 - Broken Authentication
    - A04:2021 - Insecure Design
    cwe2021-top25: true
    subcategory:
    - vuln
    likelihood: MEDIUM
    impact: MEDIUM
    confidence: MEDIUM