The vulnerability of the microprogrammed programmable logic controller Modicon, related to the violation of trust boundaries, allows a intruder to gain unauthorized access by performing a “forceful” attack against the Modbus protocol.

The vulnerability of the microprogrammed logic controllers from Modicon relates to the violation of trust boundaries during connection. Exploiting this vulnerability allows an attacker, operating remotely, to gain unauthorized access by performing a “forceful” attack using the Modbus protocol...