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Need For Speed PicoCTF Challenge

The name of the game is speed. Are you quick enough to solve this problem and keep it above 50 mph?

Posted Updated
By fs3cs0ciety
1 min read
Need For Speed PicoCTF Challenge

Time For Another One!

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Opening Need For Speed bin up inside of a debugger

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  • Not gonna lie guys, this one was to easy… set_timer() is most likely causing the Not fast enough. BOOM! message to display and exit just by seeing the way the functions are set up.

Im gonna show why integrity checks are very important to avoid this

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  • I filled mov eax, 0x0 with nop instructions as well as the call set_timer. Its like the function was never even there 😂.

Running the manually patched binary now to receive the flag

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SKRTTTTTT…

Reverse Engineering, PicoCTF
picoctf crackmes linux
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