Multiple directory traversal vulnerabilities in the FTP client in 3D-FTP Client 8.01 (8.0 build 1) allow remote FTP servers to create or overwrite arbitrary files via a .. (dot dot) in a response to a (1) LIST or (2) MLSD command.
Improper Limitation of a Pathname to a Restricted Directory The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.