Vulnerabilities reminiscent of Stuxnet found in two Schneider Electric products could allow an attacker to gain operation control of a device by intercepting then retransmitting commands.

Trustwave’s Global OT/IoT security research team uncovered the flaws in Schneider’s SoMachine Basic v1.6 and Schneider Electric M221, firmware version 1.6.2.0, Programmable Logic Controller (PLC). By exploiting the flaws, a malicious actor could take control of the devices in the same manner operators circa 2005 used the Stuxnet worm to control and ultimately cause Iran's nuclear centrifuges to destroy themselves.

Trustwave analysts were able to use the Schneider Electric vulnerability to intercept, change, then resend commands between the engineering software and the PLC.

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