id: CVE-2020-13927

info:
  name: Unauthenticated Airflow Experimental REST API
  author: pdteam
  severity: critical
  tags: cve,cve2020,apache,airflow,unauth
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.80
    cve-id: CVE-2020-13927
  description: "The previous default setting for Airflow's Experimental API was to allow all API requests without authentication, but this poses security risks to users who miss this fact. From Airflow 1.10.11 the default has been changed to deny all requests by default and is documented at https://airflow.apache.org/docs/1.10.11/security.html#api-authentication. Note this change fixes it for new installs but existing users need to change their config to default `[api]auth_backend = airflow.api.auth.backend.deny_all` as mentioned in the Updating Guide: https://github.com/apache/airflow/blob/1.10.11/UPDATING.md#experimental-api-will-deny-all-request-by-default"
  reference:
    - https://lists.apache.org/thread.html/r23a81b247aa346ff193670be565b2b8ea4b17ddbc7a35fc099c1aadd%40%3Cdev.airflow.apache.org%3E
    - http://packetstormsecurity.com/files/162908/Apache-Airflow-1.10.10-Remote-Code-Execution.html

requests:
  - method: GET
    path:
      - '{{BaseURL}}/api/experimental/latest_runs'

    matchers:
      - type: word
        words:
          - '"dag_run_url":'
          - '"dag_id":'
          - '"items":'
        condition: and