Multiple directory traversal vulnerabilities in the (a) "Unzip archive" and (b) "Upload files and archives" functionality in net2ftp 0.96 stable and 0.97 beta allow remote attackers to create, read, or delete arbitrary files via a .. (dot dot) in a filename within a (1) TAR or (2) ZIP archive.  NOTE: this can be leveraged for code execution by creating a .php file.