Challenge Name
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The name of the game is speed. Are you quick enough to solve this problem and keep it above 50 mph? need-for-speed.
Run the program `chmod +x need-for-speed && ./need-for-speed:
Run the program in GDB and ignore SIGALRM messages:
More Info:
Alternative Method 1: Run in GDB and skip the set_timer()
function:
``` (gdb) break set_timer Breakpoint 1 at 0x883 (gdb) r Starting program: ~/Documents/PicoCTF/Reverse Engineering/Need For Speed/need-for-speed
Keep this thing over 50 mph!
Alternative Method 2: Only calling the needed functions:
Alternative Method 3: Bypass the long loop:
The key
value can be found with Ghidra.
PICOCTF{Good job keeping bus #3b89d39c speeding along!}
The significant functions as decompiled by Ghidra can be found in