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.