Directory Traversal vulnerability in Kalkitech ASE ASE61850 IEDSmart upto and including version 2.3.5 allows attackers to read/write arbitrary files via the IEC61850 File Transfer protocol.
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.