{"description":"Layer7 CTF had been held from October 6th to 7th. It's a sole-play CTF and I played it as ptr-yudai. There were so many challenges that I couldn't even check all of them, especially web challenges. I got 1711pts and kept 4th place. [Pwn 1000pts] math_board [Pwn 140pts] How old are you? [Pwn 1000pts]\u2026","version":"1.0","provider_name":"Hatena Blog","title":"Layer7 CTF writeup","provider_url":"https://hatena.blog","height":"190","width":"100%","type":"rich","author_name":"ptr-yudai","categories":["CTF","Writeup"],"image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/p/ptr-yudai/20191007/20191007123633.png","blog_title":"CTF\u3059\u308b\u305e","published":"2019-10-07 13:29:15","author_url":"https://blog.hatena.ne.jp/ptr-yudai/","url":"https://ptr-yudai.hatenablog.com/entry/2019/10/07/132915","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fptr-yudai.hatenablog.com%2Fentry%2F2019%2F10%2F07%2F132915\" title=\"Layer7 CTF writeup - CTF\u3059\u308b\u305e\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://ptr-yudai.hatenablog.com/"}