{"height":"190","type":"rich","categories":["Exploit"],"published":"2014-05-14 03:01:04","provider_name":"Hatena Blog","blog_title":"\u3082\u3082\u3044\u308d\u30c6\u30af\u30ce\u30ed\u30b8\u30fc","url":"https://inaz2.hatenablog.com/entry/2014/05/14/030104","description":"\u4e00\u3064\u524d\u306e\u30a8\u30f3\u30c8\u30ea\u3067\u306f\u30d2\u30fc\u30d7\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u3092\u5229\u7528\u3057\u305fGOT overwrite\u3092\u884c\u3044\u3001\u30b8\u30e3\u30f3\u30d7\u6642eax\u30ec\u30b8\u30b9\u30bf\u306b\u30d0\u30c3\u30d5\u30a1\u306e\u30a2\u30c9\u30ec\u30b9\u304c\u5165\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u308aStack pivot\u3092\u884c\u3063\u305f\u3002 \u3057\u304b\u3057\u3001\u305d\u306e\u3088\u3046\u306a\u30e9\u30a4\u30d6\u30e9\u30ea\u95a2\u6570\u547c\u3073\u51fa\u3057\u304c\u898b\u3064\u304b\u3089\u306a\u3044\u5834\u5408\u3082\u3042\u308a\u3046\u308b\u3002 \u3053\u306e\u5834\u5408xchg esp,eax\u306e\u3088\u3046\u306a\u5f62\u306eROP gadget\u306f\u4f7f\u3048\u306a\u3044\u304c\u3001\u4ee3\u308f\u308a\u306badd esp,[some constant]\u306e\u5f62\u306egadget\u3092\u4f7f\u3046\u3053\u3068\u3067\u30b9\u30bf\u30c3\u30af\u306e\u982d\u3092\u81ea\u5206\u304c\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u53ef\u80fd\u306a\u30d0\u30c3\u30d5\u30a1\u306e\u4e2d\u306b\u79fb\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u5834\u5408\u304c\u3042\u308b\u3002 \u3053\u3053\u3067\u306f\u3001add esp,[some constant]\u306e\u5f62\u306egadget\u3092\u4f7f\u3063\u305fSt\u2026","image_url":null,"width":"100%","provider_url":"https://hatena.blog","version":"1.0","author_name":"inaz2","author_url":"https://blog.hatena.ne.jp/inaz2/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Finaz2.hatenablog.com%2Fentry%2F2014%2F05%2F14%2F030104\" title=\" GOT overwrite\u3068Stack pivot\u306b\u3088\u308bDEP\u56de\u907f\uff08add esp\u578b\uff09 - \u3082\u3082\u3044\u308d\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","title":" GOT overwrite\u3068Stack pivot\u306b\u3088\u308bDEP\u56de\u907f\uff08add esp\u578b\uff09","blog_url":"https://inaz2.hatenablog.com/"}