{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fyuta1024.hateblo.jp%2Fentry%2F2018%2F11%2F01%2F215302\" title=\"SECCON CTF 2018 QUALS 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>","title":"SECCON CTF 2018 QUALS writeup","url":"https://yuta1024.hateblo.jp/entry/2018/11/01/215302","width":"100%","author_name":"yharima","categories":["CTF","writeup"],"blog_title":"yuta1024's diary","type":"rich","provider_name":"Hatena Blog","height":"190","image_url":null,"author_url":"https://blog.hatena.ne.jp/yharima/","published":"2018-11-01 21:53:02","blog_url":"https://yuta1024.hateblo.jp/","description":"SECCON CTF 2018 QUALS writeup yharima \u30c1\u30fc\u30e0\u3067\u53c2\u52a0\uff0e2535 pts \u3067 28th \u3067\u3057\u305f\uff0e\u904e\u53bb\u6700\u9ad8\u9806\u4f4d\uff0e \u3082\u3057\u304b\u3057\u305f\u3089\u56fd\u5185\u4e88\u9078\u3082\u30ef\u30f3\u3061\u3083\u3093\u3042\u308b\u306e\u304b\u3082\u3057\u308c\u306a\u3044\u2026? \u4eca\u56de\u304b\u3089\u5f8c\u8f292\u540d\u304c\u53c2\u52a0\u3057\u3066\uff0c6\u4eba\u4f53\u5236\u3060\u3063\u305f\uff0e Classic Pwn \u3088\u304f\u3042\u308b\u30b9\u30bf\u30c3\u30af\u306e BOF \u304c\u3042\u308a\uff0c EIP \u3092\u596a\u3063\u3066 libc \u3092\u30ea\u30fc\u30af\u3057\u3066\u30b7\u30a7\u30eb\u3092\u7acb\u3061\u4e0a\u3052\u308b\u554f\u984c\uff0e \u4f55\u6545\u304b\u30c1\u30fc\u30e0\u306e\u8ab0\u3082\u89e3\u3044\u3066\u3044\u306a\u304b\u3063\u305f & \u4e00\u5fdc pwn \u62c5\u5f53\u306a\u306e\u3067\u81ea\u5206\u304c\u89e3\u3044\u305f\uff0e \u3072\u3068\u307e\u305a A \u3068\u304b\u3067\u57cb\u3081\u5c3d\u304f\u3059\u3068 EIP \u304c\u3068\u308c\u308b\u3053\u3068\u306f\u78ba\u8a8d\uff0e \u307e\u305f puts@plt \u306a\u3069\u3082\u3042\u308b\u306e\u3067\uff0c GOT \u306e\u30a2\u30c9\u30ec\u30b9\u3082\u308f\u304b\u308b\u306e\u3067 lib\u2026","version":"1.0","provider_url":"https://hatena.blog"}