ChallengesReverseBit Surgeon

Bit Surgeon

HardPurple TeamReverse 3-4 hrs

Challenge Description / Scenario

A critical infrastructure device accepts over-the-air updates. The challenge: forge a valid update package that passes signature verification and executes your payload.

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3 questions — answer all to complete the challenge

475 pts
1

What signing algorithm is used?

2

What is the hardcoded signing key?

3

Submit the flag from the forged firmware execution.