A vulnerability exists in Advantech iView in NetworkServlet.processImportRequest() that could allow for a directory traversal attack. This issue requires an authenticated attacker with at least user-level privileges. A specific parameter is not properly sanitized or normalized, potentially allowing an attacker to determine the existence of arbitrary files on the server.
Solution:
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.