{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhama.hatenadiary.jp%2Fentry%2F2019%2F04%2F08%2F042220\" title=\"Midnight Sun CTF 2019 Quals writeup - \u30d6\u30ed\u30b0\u672a\u6e80\u306e\u306a\u306b\u304b\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","blog_title":"\u30d6\u30ed\u30b0\u672a\u6e80\u306e\u306a\u306b\u304b","published":"2019-04-08 04:22:20","version":"1.0","provider_url":"https://hatena.blog","width":"100%","blog_url":"https://hama.hatenadiary.jp/","url":"https://hama.hatenadiary.jp/entry/2019/04/08/042220","height":"190","type":"rich","image_url":null,"description":"\u306f\u3058\u3081\u306b Gissa2\u3001 Hfsipc\u3001 Hfs-dos\u3092\u89e3\u3044\u305f\u3002 \u3069\u308c\u3082\u826f\u3044\u554f\u984c\u3060\u3063\u305f\u3068\u601d\u3046\u3002 Gissa2 stack overflow\u304c\u3042\u308a\u3001 canary\u304c\u306a\u3044\u306e\u3067rop\u304c\u3067\u304d\u308b\u3002 \u3057\u304b\u3057seccomp filter\u306b\u3088\u3063\u3066\u30b7\u30b9\u30c6\u30e0\u30b3\u30fc\u30eb\u306b\u5236\u9650\u304c\u304b\u304b\u3063\u3066\u3044\u308b\u3002 \u8a2d\u5b9a\u3055\u308c\u308b\u30d5\u30a3\u30eb\u30bf\u30fc\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3001 open/openat/ execve/execeat\u304c\u585e\u304c\u308c\u3066\u304a\u308a\u30d5\u30e9\u30b0\u3092\u958b\u3044\u305f\u308a\u30b7\u30a7\u30eb\u3092\u7acb\u3061\u4e0a\u3052\u308b\u3053\u3068\u304c\u3067\u304d\u306a\u3044\u3002 line CODE JT JF K ================================= 0000: 0x20 0x00 0x00 0x00000004 A \u2026","author_name":"hama7230","author_url":"https://blog.hatena.ne.jp/hama7230/","title":"Midnight Sun CTF 2019 Quals writeup","categories":[]}