Vulnerability ID: HTB22629
Reference: http://www.htbridge.ch/advisory/directory_traversal_vulnerability_in_anycon                nect.html
Product: AnyConnect
Vendor: AnyConnect ( http://www.anyconnect.net ) 
Vulnerable Version: 1.2.3.0 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 tospecified locations on a user's system.

The FTP client does not properly sanitise filenames containing directory traversalsequences 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 containsfiles with backslash directory traversal sequences in their filenames,  an attackercan potentially write files into a user's Startup folder to execute malicious codewhen the user logs on.