Description
A vulnerability exists in the HCI IEC 60870-5-104 that affects the RTU500 series product versions listed below. Incomplete or wrong received APDU frame layout may cause blocking on link layer. Error reason was an endless blocking when reading incoming frames on link layer with wrong length information of APDU or delayed reception of data octets. Only communication link of affected HCI IEC 60870-5-104 is blocked. If attack sequence stops the communication to the previously attacked link gets normal again.
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 12.0.1 – 12.0.14affectedRTU500 series CMU Firmware version 12.2.1 – 12.2.11affectedRTU500 series CMU Firmware version 12.4.1 – 12.4.11affectedRTU500 series CMU Firmware version 12.6.1 – 12.6.9affectedRTU500 series CMU Firmware version 12.7.1 – 12.7.6affectedRTU500 series CMU Firmware version 13.2.1 – 13.2.6affectedRTU500 series CMU Firmware version 13.4.1 – 13.4.3affected