Hardcoded credentials

A vulnerability has been identified in CP-8000 MASTER MODULE WITH I/O -25/+70°C All versions V16.20, CP-8000 MASTER MODULE WITH I/O -40/+70°C All versions V16.20, CP-8021 MASTER MODULE All versions V16.20, CP-8022 MASTER MODULE WITH GPRS All versions V16.20. An undocumented debug port uses...