An issue was discovered in Vocera Report Server and Voice Server 5.x through 5.8. There is a Path Traversal for an Unzip operation. The Vocera Report Console contains a websocket function that allows for the restoration of the database from a ZIP archive that expects a SQL import file. During the unzip operation, the code takes file paths from the ZIP archive and writes them to a Vocera temporary directory. Unfortunately, the code does not properly check if the file paths include directory traversal payloads that would escape the intended destination.
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.