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Directory Traversal Vulnerability in TurboFTP Server
From: advisory () htbridge ch
Date: Mon, 2 Aug 2010 12:19:02 +0200 (CEST)

Vulnerability ID: HTB22514
Reference: http://www.htbridge.ch/advisory/directory_traversal_vulnerability_in_turboftp_server.html
Product: TurboFTP Server
Vendor: TurboSoft, Inc ( http://turboftp.com/ ) 
Vulnerable Version: 1.20 Build 745 and Probably Prior Versions
Vendor Notification: 19 July 2010 
Vulnerability Type: Directory Traversal Vulnerability
Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response
Risk level: High 
Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/) 

Vulnerability Details:
When exploited, this vulnerability allows an anonymous attacker to write files to specified locations on a user's 
system.

The FTP Server does not properly sanitise filenames containing directory traversal sequences that are received from an 
FTP client, for example
you can upload any file and rename it to "..\..\..\..\..\..\..\..\..\...Documents and Settings\All Users\Start 
Menu\Programs\Startup\file.exe", rename
command will move specified file into the autorun folder.

Using files with backslash directory traversal sequences in their filenames, an attacker can potentially write files 
into a server's Startup folder 
to execute malicious code when the server is restarted. Attacker can also delete any file or folder on Windows file 
system with vulnerable Turbo 
FTP server.



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