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MCU bootloader Crc Check Option leads to to security breach

Question asked by Didier JEANJEAN on Oct 17, 2019
Latest reply on Oct 23, 2019 by Didier JEANJEAN

Hello,

 

One question about mcu bootloader on MCU Xpresso V11.01 and KinetisFlashTools.

Like i can see in the picture below it is possible to the mcu boot loader to launch an application whihout checking the crc.

 

 

I verify the code in mcu boot loader and it is true that it is possible to launch an application that the crc is not checking !

 

This seem to me a breach of security, because i can thrown anything ! even if the tag "kcfg" is necessary to disable  the crc check. 

My main question is that i don't understand the utility of disable crc check ? 

 

Thanks by advance and Best regards from France

Didier JEANJEAN

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