{"version":"1.0","description":"\u3053\u308c\u306e\u7d9a\u304d\u3002 \u524d\u306b\u66f8\u3044\u305fGOT overwrite\u3068\u307b\u307c\u540c\u3058\u624b\u53e3\u306a\u3093\u3067\u3059\u304c\u3001.dtors\u30bb\u30af\u30b7\u30e7\u30f3\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u308b\uff08\u95a2\u6570\u306e\uff09\u30a2\u30c9\u30ec\u30b9\u3092\u66f8\u304d\u63db\u3048\u3066\u3001\u304a\u597d\u304d\u306a\u95a2\u6570\u3092\u547c\u3076\u3068\u3044\u3046\u653b\u6483\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002.dtor overwrite \u3068\u304b\u547c\u3070\u308c\u3066\u307e\u3059\u3002\u3053\u306e\u624b\u53e3\u3092\u3001 NX\u3042\u308a ASLR\u3042\u308a RELRO\u306a\u3057 PIE\u306a\u3057 \u3068\u3044\u3046\u6761\u4ef6\u4e0b\u3067\u8a66\u3057\u3066\u307f\u307e\u3059\u3002 #include <stdio.h> #include <stdlib.h> __attribute__((destructor)) static void dtor_fn() { puts(\"good bye!\"); } static void my_dtor_\u2026","title":" \u88dc\u8db32: .dtors overwrite \u306b\u3064\u3044\u3066","provider_url":"https://hatena.blog","url":"https://yupo5656.hatenadiary.org/entry/20060624/p2","author_name":"yupo5656","provider_name":"Hatena Blog","blog_title":"memologue","author_url":"https://blog.hatena.ne.jp/yupo5656/","height":"190","blog_url":"https://yupo5656.hatenadiary.org/","type":"rich","image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fyupo5656.hatenadiary.org%2Fentry%2F20060624%2Fp2\" title=\" \u88dc\u8db32: .dtors overwrite \u306b\u3064\u3044\u3066 - memologue\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":["GCC"],"published":"2006-06-24 00:00:02","width":"100%"}