https://nhantouli.com/tags/reverse-engineering/ Recent content in Reverse Engineering on nhantouli https://nhantouli.com/images/papermod-cover.png https://nhantouli.com/images/papermod-cover.png Hugo en-us Wed, 10 Jul 2024 00:00:00 +0000 https://nhantouli.com/posts/pwnable-kr-writeups/ Wed, 10 Jul 2024 00:00:00 +0000 https://nhantouli.com/posts/pwnable-kr-writeups/ <p><em>This post details my writeups for a few of the challenges at <a href="http://pwnable.kr">pwnable.kr</a> &ndash; a wargame site for pwn challenges. As I make my way through the the other challenges I&rsquo;ll periodically update this page with additional writeups. I may also work through the <a href="https://guyinatuxedo.github.io/">Nightmare</a> course to get better at binary exploitation/reverse engineering as I&rsquo;ve heard positive feedback about it.</em></p> <h1 id="fd">fd:</h1> <pre tabindex="0"><code>Mommy! what is a file descriptor in Linux? ssh fd@pwnable.kr -p2222 (pw:guest) </code></pre><h3 id="solution">Solution:</h3> <p>There are 3 files provided: the binary <code>fd</code>, the source code <code>fd.c</code> and a flag file <code>flag</code>.</p>