RTU500 vulnerabilities

The RTU500 web application has an improper authorization vulnerability that allows an authenticated user to trigger a device reboot through the reset endpoint. Successful exploitation could cause temporary device unavailability and disruption of its intended operation.

RTU500 has a vulnerability where high-load scenarios, such as sending GI requests at short intervals, may cause a NULL pointer dereference in the last entry of the enhanced message queue. This can cause a BCI_IEC104 fatal write error, resulting in connection interruption and restart, and ultimately a denial of service for bidirectional IEC 60870-5-104 communication.

IEC 60870-5-104 used in bidirectional mode in RTU500 is vulnerable to NULL pointer dereference when a specially crafted sequence of messages is sent for a certain time, causing Denial of Service. The product is only affected if BCI is configured.