{"version":"1.0","blog_url":"https://sei0o.hateblo.jp/","author_name":"sei0okun","height":"190","provider_url":"https://hatena.blog","description":"write-up\u3092\u898b\u305f\u3002\u3053\u306e\u4eba\u7af6\u30d7\u30ed\u3082CTF\u3082\u3067\u304d\u3066\u3059\u3054\u3044\u306a\u3042\u3002 Tokyo Westerns/MMA CTF 2nd 2016: greeting \u00b7 \u3046\u3055\u304e\u5c0f\u5c4b Tokyo Westerns/MMA CTF 2nd 2016\u306ePwn\u4f5c\u554f - ShiftCrops \u3064\u308c\u3065\u308c\u306a\u308b\u5099\u5fd8\u9332 Villager A\u3068\u540c\u3058format string attack\u3060\u304c\u3001 printf \u3057\u305f\u5f8c\u306bGOT overwrite\u3055\u308c\u308b\u305f\u3081\u306e\u95a2\u6570\u304c\u306a\u3044\u306e\u3067\u56f0\u308b\u3002 \u305d\u3053\u3067 \u30c7\u30b9\u30c8\u30e9\u30af\u30bf .fini_array \u3092\u66f8\u304d\u63db\u3048\u308c\u3070\u89e3\u3051\u308b\u3089\u3057\u3044\u3002 .fini_array \u306e\u5834\u6240\u306f readelf -S ./greeting \u3067\u2026","type":"rich","width":"100%","author_url":"https://blog.hatena.ne.jp/sei0okun/","blog_title":"\u66f4\u65b0\u65e5\u6642\u3067\u5dee\u3092\u3064\u3051\u308d","provider_name":"Hatena Blog","image_url":null,"categories":["CTF"],"title":"TWMMA CTF 2016 / greeting \u3092\u89e3\u3044\u305f","published":"2017-11-18 10:13:24","url":"https://sei0o.hateblo.jp/entry/2017/11/18/101324","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsei0o.hateblo.jp%2Fentry%2F2017%2F11%2F18%2F101324\" title=\"TWMMA CTF 2016 / greeting \u3092\u89e3\u3044\u305f - \u66f4\u65b0\u65e5\u6642\u3067\u5dee\u3092\u3064\u3051\u308d\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>"}