# Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
# SPDX-License-Identifier: Apache-2.0
---
description: |
  ### Document Name - ASR-CIS_1.2.0_2.8

  ## What does this document do?
  Enables rotation for customer-managed KMS keys.

  ## Input Parameters
  * Finding: (Required) Security Hub finding details JSON
  * AutomationAssumeRole: (Required) The ARN of the role that allows Automation to perform the actions on your behalf.

  ## Output Parameters
  * Remediation.Output - Remediation results

  ## Documentation Links
  * [CIS v1.2.0 2.8](https://docs.aws.amazon.com/securityhub/latest/userguide/securityhub-cis-controls.html#securityhub-cis-controls-2.8)
schemaVersion: '0.3'
assumeRole: '{{ AutomationAssumeRole }}'
outputs:
  - ParseInput.AffectedObject
  - Remediation.Output
parameters:
  Finding:
    type: StringMap
    description: The input from the Orchestrator Step function for the 2.8 finding
  AutomationAssumeRole:
    type: String
    description: (Required) The ARN of the role that allows Automation to perform the actions on your behalf.
    allowedPattern: '^arn:(?:aws|aws-us-gov|aws-cn):iam::\d{12}:role/[\w+=,.@-]+$'
  RemediationRoleName:
    type: String
    default: "SO0111-EnableKeyRotation"
    allowedPattern: '^[\w+=,.@-]+$'

mainSteps:
  - name: ParseInput
    action: 'aws:executeScript'
    outputs:
      - Name: KMSKeyId
        Selector: $.Payload.resource_id
        Type: String
      - Name: FindingId
        Selector: $.Payload.finding_id
        Type: String
      - Name: ProductArn
        Selector: $.Payload.product_arn
        Type: String
      - Name: AffectedObject
        Selector: $.Payload.object
        Type: StringMap
      - Name: RemediationRegion
        Selector: $.Payload.resource_region
        Type: String
      - Name: RemediationAccount
        Selector: $.Payload.account_id
        Type: String
    inputs:
      InputPayload:
        Finding: '{{Finding}}'
        parse_id_pattern: '^arn:(?:aws|aws-cn|aws-us-gov):kms:(?:[a-z]{2}(?:-gov)?-[a-z]+-\d):\d{12}:key/([A-Za-z0-9-]{36})$'
        expected_control_id:
        - '2.8'
      Runtime: python3.8
      Handler: parse_event
      Script: |-
        %%SCRIPT=common/parse_input.py%%

  - name: Remediation
    action: 'aws:executeAutomation'
    inputs:
      DocumentName: ASR-EnableKeyRotation
      TargetLocations:
        - Accounts: [ '{{ParseInput.RemediationAccount}}' ]
          Regions: [ '{{ParseInput.RemediationRegion}}' ]
          ExecutionRoleName: '{{RemediationRoleName}}'
      RuntimeParameters:
        KeyId: '{{ParseInput.KMSKeyId}}'
        AutomationAssumeRole: 'arn:{{global:AWS_PARTITION}}:iam::{{global:ACCOUNT_ID}}:role/{{RemediationRoleName}}'

  - name: UpdateFinding
    action: 'aws:executeAwsApi'
    inputs:
      Service: securityhub
      Api: BatchUpdateFindings
      FindingIdentifiers:
      - Id: '{{ParseInput.FindingId}}'
        ProductArn: '{{ParseInput.ProductArn}}'
      Note:
        Text: 'Enabled KMS Customer Managed Key rotation for {{ParseInput.KMSKeyId}}'
        UpdatedBy: 'ASR-CIS_1.2.0_2.8'
      Workflow:
        Status: RESOLVED
    description: Update finding
    isEnd: true