Exploit cwpk
This is based on pdf of secure-exploitation. http://www.security-explorations.com/
Thank you for this amazing work!
Okey, let's go...
First Set-top-box need have uart port active(TX/RX).
Sometimes engineers make stupid mistakes(lucky for us)
After enter on box must check if this is vulnerable or not.
Type cmd.
peek fe00d05c
If this return 0x00000000(yeah), case not ,sorry this not for you.
Input(Ecwpk) and output(cwpk) is address fe24c020.
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add new script(metal_fix)
I tested on my box(Pace), key out OK