dakutenpura https://blog.hatena.ne.jp/dakutenpura/ A box of chocolate https://dakutenpura.hatenablog.com/ Writeup I am a newbie at CTFs so there will be many errors in this writeup. If you found one (or some), please leave a comment or send me an e-mail :D. Thank you :D Basic buffer overflow exploitation. We got the following code: #include <stdio.h> #include <stdlib.h> void backdoor() { execl("/bin/cat", "/bin… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fdakutenpura.hatenablog.com%2Fentry%2F2015%2F03%2F16%2F161102" title=" Codegate CTF Junior Preliminary 2015 - Task cheip - A box of chocolate" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2015-03-16 16:11:02 rich https://dakutenpura.hatenablog.com/entry/2015/03/16/161102 1.0 100%