cve/2019/CVE-2019-12276.md

### [CVE-2019-12276](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12276)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

A Path Traversal vulnerability in Controllers/LetsEncryptController.cs in LetsEncryptController in GrandNode 4.40 allows remote, unauthenticated attackers to retrieve arbitrary files on the web server via specially crafted LetsEncrypt/Index?fileName= HTTP requests. A patch for this issue was made on 2019-05-30 in GrandNode 4.40.

### POC

#### Reference
- http://packetstormsecurity.com/files/153373/GrandNode-4.40-Path-Traversal-File-Download.html

#### Github
- https://github.com/ARPSyndicate/kenzer-templates
- https://github.com/Calistamu/graduation-project