This is my experience when I was dealing with some applications which have a Directory Traversal vulnerability. I was using DotDotPwn by nitr0us when finding vulnerability on Quickshare File Server 1.2.1 (on the FTP protocol). I also used DotDotPwn when I was doing a pentest on my client. So, let the experience tell you the story.
Quickshare File Server 1.2.1
First, I download the software here, setup the XP lab machine, download DotDotPwn here, and all preparation should be ready. We must setup the Quickshare File Server to point to our FTP directory, let the user set to “Allow anonymous user”.