advisoryhtbridge.ch
Date: Wed Oct 13 2010 - 09:55:03 CDT

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Vulnerability ID: HTB22627
Reference: http://www.htbridge.ch/advisory/directory_traversal_vulnerability_in_robo_ftp.html
Product: Robo-FTP
Vendor: Serengeti Systems Incorporated ( http://www.robo-ftp.com )
Vulnerable Version: 3.7.3 and Probably Prior Versions
Vendor Notification: 27 September 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 client does not properly sanitise filenames containing directory traversal sequences that are received from an FTP server, for example
file named as "..\..\..\..\..\..\..\somefile.exe".

By tricking a user to download a directory from a malicious FTP server that contains files with backslash directory traversal sequences in their filenames,
an attacker can potentially write files into a user's Startup folder to execute malicious code when the user logs on.

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