iam-key-rotation-90days: IAM Access Key Rotation - 90-Day Policy

id: iam-key-rotation-90days
info:
  name: IAM Access Key Rotation - 90-Day Policy
  author: princechaddha
  severity: high
  description: |
    Checks if IAM user access keys are rotated every 90 days to minimize accidental exposures and unauthorized access risks
  reference:
    - https://docs.aws.amazon.com/cli/latest/reference/iam/list-access-keys.html
  metadata:
    max-request: 2
  tags: cloud,devops,aws,amazon,iam,aws-cloud-config

flow: |
  code(1)
  for(let UserName of iterate(template.users)){
    set("user", UserName)
    code(2)
  }

self-contained: true
code:
  - engine:
      - sh
      - bash
    source: |
      aws iam list-users --query 'Users[*].UserName'

    extractors:
      - type: json # type of the extractor
        internal: true
        name: users
        json:
          - '.[]'

  - engine:
      - sh
      - bash
    source: |
         aws iam list-access-keys --user-name $user | jq -r '.AccessKeyMetadata[] | select((.CreateDate[:-6] | strptime("%Y-%m-%dT%H:%M:%S") | mktime) < (now - (90 * 86400))) | .AccessKeyId'

    extractors:
      - type: regex # type of the extractor
        name: accesskey
        internal: true
        regex:
          - '^AK.*'

      - type: dsl
        dsl:
          - '"The IAM Key " + accesskey +" is older than 90 days"'
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