{"published":"2014-06-16 00:18:09","author_url":"https://blog.hatena.ne.jp/inaz2/","blog_url":"https://inaz2.hatenablog.com/","title":" Improper Null Termination\u3092\u5229\u7528\u3057\u305fSSP\u56de\u907f","version":"1.0","categories":["Exploit"],"description":"\u30b9\u30bf\u30c3\u30af\u30d0\u30c3\u30d5\u30a1\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u3092\u9632\u3050\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6a5f\u69cb\u306e\u4e00\u3064\u306b\u3001SSP\u304c\u3042\u308b\u3002 SSP\u3092\u6709\u52b9\u306b\u3059\u308b\u3068\u3001\u95a2\u6570\u306e\u547c\u3073\u51fa\u3057\u6642\u306b\u30b9\u30bf\u30c3\u30af\u306bcanary\u3068\u547c\u3070\u308c\u308b\u5024\u304c\u7f6e\u304b\u308c\u3001\u3053\u308c\u304c\u66f8\u304d\u63db\u3048\u3089\u308c\u305f\u3068\u304d\u5f37\u5236\u7d42\u4e86\u3059\u308b\u3088\u3046\u306b\u306a\u308b\u3002 \u3057\u304b\u3057\u3001\u4f55\u3089\u304b\u306e\u65b9\u6cd5\u3067canary\u306e\u5024\u304c\u77e5\u308b\u3053\u3068\u304c\u3067\u304d\u308c\u3070\u3001SSP\u306f\u7121\u52b9\u5316\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002 \u3053\u3053\u3067\u306f\u4e00\u4f8b\u3068\u3057\u3066strncpy\u95a2\u6570\u306e\u4ed5\u69d8\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001SSP\u304c\u6709\u52b9\u306a\u6761\u4ef6\u4e0b\u3067\u30b7\u30a7\u30eb\u3092\u8d77\u52d5\u3057\u3066\u307f\u308b\u3002 \u74b0\u5883 Ubuntu 12.04 LTS 32bit\u7248 $ uname -a Linux vm-ubuntu32 3.11.0-15-generic #25~precise1-Ubunt\u2026","provider_url":"https://hatena.blog","type":"rich","blog_title":"\u3082\u3082\u3044\u308d\u30c6\u30af\u30ce\u30ed\u30b8\u30fc","image_url":null,"url":"https://inaz2.hatenablog.com/entry/2014/06/16/001809","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Finaz2.hatenablog.com%2Fentry%2F2014%2F06%2F16%2F001809\" title=\" Improper Null Termination\u3092\u5229\u7528\u3057\u305fSSP\u56de\u907f - \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>","width":"100%","provider_name":"Hatena Blog","height":"190","author_name":"inaz2"}