{"image_url":null,"url":"https://kyuri.hatenablog.jp/entry/2017/03/12/140543","provider_name":"Hatena Blog","version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkyuri.hatenablog.jp%2Fentry%2F2017%2F03%2F12%2F140543\" title=\"ED CTF my_sandbox writeup - \u304d\u3085\u3046\u308a\u3002\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","height":"190","provider_url":"https://hatena.blog","width":"100%","published":"2017-03-12 14:05:43","blog_title":"\u304d\u3085\u3046\u308a\u3002","author_name":"Kyuri","blog_url":"https://kyuri.hatenablog.jp/","title":"ED CTF my_sandbox writeup","categories":["CTF","pwn"],"description":"\u89e3\u3044\u305f\u306e\u3067writeup\u3067\u3059\u3002 \u30d7\u30ed\u30b0\u30e9\u30e0\u3068libc\u304c\u6e21\u3055\u308c\u3066\u307e\u3059\u3002 \u4e8b\u524d\u78ba\u8a8d $ ./my_sandbox Your name please: hoge Welcome to my echo program! This program has an bug. I couldn't fix this bug... :( But, I developed sandbox for this bug. Hackers will never be able to get shell, haha! :) Enter your message: 1 Entered: 1 (snip) Enter your\u2026","type":"rich","author_url":"https://blog.hatena.ne.jp/Kyuri/"}