![]() Our goal is to spawn a shell, when I have to deal with the libc I like to call system("/bin/sh"), so that is what we will do. #PEN PALWORLD FREE#The use after free vulnerability allow us to read and write what we want, where we want quite easily. To remind you, we have 4 actions: 0x000000000000093d create_cardĬreate, edit, free, or read a card with an appreciated use after free vulnerability. Let’s talk about the plan What do we dispose ? I also discovered that we can redirect execution flow with _free_hook or _malloc_hook which are null by default. We know that unsorted bins are stored in main_arena which is in libc, so the last point can be interesting.
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