Improper limitation of a pathname to a restricted directory ('Path Traversal') issue exists in the file deletion process of the USB storage file-sharing function of HGW-BL1500HM Ver 002.002.003 and earlier. If this vulnerability is exploited, an attacker may delete a file on the device or cause a denial of service (DoS) condition.
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.