nifi-unauth: Apache NiFi - Unauthenticated Access

id: nifi-unauth

info:
  name: Apache NiFi - Unauthenticated Access
  author: pwnhxl
  severity: high
  verified: true
  description: |-
    Apache NiFi server was able to be accessed because no authentication was required.
    shodan: title:"NiFi"
    fofa: title="nifi" && body="Did you mean"
  reference:
    - https://github.com/jm0x0/apache_nifi_processor_rce
  tags: misconfig,apache,nifi,unauth
  created: 2023/06/17

rules:
  r0:
    request:
      method: GET
      path: /nifi-api/access/config
    expression: |
      response.status == 200 && 
      response.headers["content-type"].contains("application/json") &&
      response.body.bcontains(b'"supportsLogin":false}')
expression: r0()