prettify code

2018年6月26日 星期二

[Write-up] Google CTF 2018 - pwn420 sandbox compat

Basic Info
This is an interesting sandbox-escaping challenge! Though I solved it after the game, still want to share how fun this challenge is, so I make this writeup.

Attachment contains the binary and source code, you can find them in my github repository.

2018年4月5日 星期四

[Write-up] 0ctf quals 2018 - pwn1000 Mighty Dragon

Glad to say that we (HITCON) are the only team solved this challenge :D
But in my opinion this challenge is more like a reversing but not a pwnable one.
This is a pwn challenge - but the pwn part is extremely easy, and the hardest part is to understand what is this binary doing. Anyway, let's see the details.