TokyoWestern MMA 2016 PWN Diary Write-up

Introduction

This post is partially based on [1] and [2]. In this challenge, it involves a customized memory management and seccomp escape.
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SECCOMP AND PTRACE

Introduction

In this post, I will talk about the seccomp and ptrace step by step. The manual reference of ptrace [6] is heavily recommended for this topic. The whole post will be divided into 6 sections: (1) Introduction of syscall. (2) Introduction of seccomp. (3) Introduction of ptrace. (4) Advanced ptrace. (5) Seccomp Filter and seccomp-tool. and (6) Seccomp escape with ptrace.
I will give many sample codes in the post since I am a newbie in seccomp escape.
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