terraform.aws.security.aws-workspaces-user-volume-unencrypted.aws-workspaces-user-volume-unencrypted

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The AWS Workspace user volume is unencrypted. The AWS KMS encryption key protects user volume. To create your own, create a aws_kms_key resource or use the ARN string of a key in your account.

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Defintion

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rules:
  - id: aws-workspaces-user-volume-unencrypted
    patterns:
      - pattern: |
          resource "aws_workspaces_workspace" $ANYTHING {
            ...
          }
      - pattern-not-inside: |
          resource "aws_workspaces_workspace" $ANYTHING {
            ...
            user_volume_encryption_enabled = true
            ...
          }
    message: The AWS Workspace user volume is unencrypted. The AWS KMS encryption
      key protects user volume. To create your own, create a aws_kms_key
      resource or use the ARN string of a key in your account.
    languages:
      - hcl
    severity: WARNING
    metadata:
      owasp:
        - A03:2017 - Sensitive Data Exposure
      cwe:
        - "CWE-320: CWE CATEGORY: Key Management Errors"
      technology:
        - aws
        - terraform
      category: security
      references:
        - https://owasp.org/Top10/A02_2021-Cryptographic_Failures
      subcategory:
        - audit
      likelihood: LOW
      impact: LOW
      confidence: LOW
      license: Commons Clause License Condition v1.0[LGPL-2.1-only]
      vulnerability_class:
        - Cryptographic Issues

Examples

aws-workspaces-user-volume-unencrypted.tf

resource "aws_workspaces_workspace" "pass" {
  directory_id = aws_workspaces_directory.main.id
  bundle_id    = data.aws_workspaces_bundle.bundle.id
  user_name    = var.user_name

  user_volume_encryption_enabled = true
  volume_encryption_key          = var.volume_encryption_key

  workspace_properties {
    compute_type_name                         = "VALUE"
    user_volume_size_gib                      = 10
    root_volume_size_gib                      = 80
    running_mode                              = "AUTO_STOP"
    running_mode_auto_stop_timeout_in_minutes = 60
  }

  tags = var.common_tags
}
# ruleid: aws-workspaces-user-volume-unencrypted
resource "aws_workspaces_workspace" "fail" {
  directory_id = aws_workspaces_directory.main.id
  bundle_id    = data.aws_workspaces_bundle.bundle.id
  user_name    = var.user_name

  workspace_properties {
    compute_type_name                         = "VALUE"
    user_volume_size_gib                      = 10
    root_volume_size_gib                      = 80
    running_mode                              = "AUTO_STOP"
    running_mode_auto_stop_timeout_in_minutes = 60
  }

  tags = var.common_tags
}