Description
A vulnerability exists in the HCI IEC 60870-5-104 function included in certain versions of the RTU500 series product. The vulnerability can only be exploited, if the HCI 60870-5-104 is configured with support for IEC 62351-5 and the CMU contains the license feature ‘Advanced security’ which must be ordered separately. If these preconditions are fulfilled, an attacker could exploit the vulnerability by sending a specially crafted message to the RTU500, causing the targeted RTU500 CMU to reboot. The vulnerability is caused by a missing input data validation which eventually if exploited causes an internal buffer to overflow in the HCI IEC 60870-5-104 function.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Hitachi Energy RTU500 series
Default version status: unaffected
RTU500 series CMU Firmware version 13.3.1affectedRTU500 series CMU Firmware version 13.3.2affectedRTU500 series CMU Firmware version 13.3.3unaffectedRTU500 series CMU Firmware version 13.4.1unaffected