{"version":"1.0","title":"DEF CON CTF 2016 writeup","author_url":"https://blog.hatena.ne.jp/yharima/","description":"DEF CON CTF 2016 writeup \u53bb\u5e74\u306f 0 \u5b8c\u3092\u9054\u6210\u3057\u305f DEF CON\uff0e \u4eca\u5e74\u306f 1 \u5b8c\u4ee5\u4e0a\u3092\u76ee\u6307\u3057\u3066\u306a\u3093\u3068\u304b\u9054\u6210\u3067\u304d\u305f\u306e\u3067\uff0cwriteup \u3092\u66f8\u304f\u3053\u3068\u306b\u3059\u308b\uff0e xkcd 64 bit \u30d0\u30a4\u30ca\u30ea\uff0e\u304a\u3068\u3068\u3057\u8a71\u984c\u306b\u306a\u3063\u305f openssl \u306e Heartbleed \u304c\u5143\u30cd\u30bf\u3063\u307d\u3044\u3089\u3057\u3044\uff0e \u306a\u3093\u304b 4 \u30b3\u30de\u7684\u306a\u3082\u306e\u304c\u30c1\u30fc\u30e0\u306e\u30c1\u30e3\u30c3\u30c8\u306b\u8cbc\u3089\u308c\u3066\u305f\uff0e xkcd: Heartbleed Explanation \u3068\u308a\u3042\u3048\u305a\u30ed\u30fc\u30ab\u30eb\u3067\u52d5\u304b\u3057\u3066\u307f\u308b\uff0e $ ./xkcd Could not open the flag. \u3069\u3046\u3084\u3089\u30d5\u30e9\u30b0\u30d5\u30a1\u30a4\u30eb\u304c\u306a\u3044\u3068\u8d77\u52d5\u3067\u304d\u3089\u3057\u3044\uff0e strace \u3092\u4f7f\u3063\u3066\u30b7\u30b9\u30c6\u2026","type":"rich","provider_name":"Hatena Blog","author_name":"yharima","categories":["CTF","writeup"],"blog_url":"https://yuta1024.hateblo.jp/","blog_title":"yuta1024's diary","image_url":"http://cdn-ak.f.st-hatena.com/images/fotolife/y/yharima/20160523/20160523232605.png","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fyuta1024.hateblo.jp%2Fentry%2F2016%2F05%2F23%2F232648\" title=\"DEF CON CTF 2016 writeup - yuta1024&#39;s diary\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","published":"2016-05-23 23:26:48","url":"https://yuta1024.hateblo.jp/entry/2016/05/23/232648","provider_url":"https://hatena.blog","height":"190"}