Description
A Modbus connection feature on openPDC accepts a caller-specified destination address and port with no restriction on which internal hosts may be targeted. An authenticated user can attempt connections to arbitrary internal network destinations, revealing which destinations are reachable. With repeated attempts, an attacker may be able to map the internal network.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Grid Protection Alliance openPDC
Default version status: unaffected
0 to < 2.9.477affected0 to < 2.9.482affected2.9.482unaffected
Grid Protection Alliance openPDC (Docker image)
Default version status: unaffected
0 to < 2.9.477affected0 to < 2.9.482affected
Grid Protection Alliance openHistorian
Default version status: unaffected
0 to < 2.8.580affected0 to < 2.8.585affected2.8.585unaffected