heap_1

heap_1

Can you control your overflow?

Solution

1. We just gotta overwrite the "secret key" with something, I just correctly guessed that we should set it to pico, this can be done by inserting aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaapico into our writeable buffer. This will overflow our buffer and write over the "secret key".

Flag

Flag: picoCTF{starting_to_get_the_hang_b9064d7c}