ctf | Trevor Elwell http://trevorelwell.me/ Mon, 08 Jul 2019 01:03:49 +0000 en-US hourly 1 https://wordpress.org/?v=6.4.3 Google CTF | Reverse a Cellular Automata https://trevorelwell.me/google-ctf-reverse-a-cellular-automata/ Sun, 07 Jul 2019 21:45:57 +0000 https://trevorelwell.me/?p=930 This is a writeup for one of the challenges from the Google CTF which I participated in a few weeks ago. My friend Chris and I were finally able to get this flag after a lot of hitting our heads together. The Reverse a Cellular Automata challenge (may not be up in the future) was ... Read More

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A Simple ROP Exploit | poor_canary writeup https://trevorelwell.me/a-simple-rop-exploit-poor-canary/ Thu, 07 Mar 2019 22:44:50 +0000 http://trevorelwell.me/?p=897 HXP 2018 has a “baby” challenge called poor_canary which was my first actual ROP exploit. If you want to follow along you’ll need to download and install the hxp 2018 vm image and install it locally. If you’re on a mac, you might need to port forward in order to get the image working properly. ... Read More

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