{"image_url":null,"blog_url":"https://ptr-yudai.hatenablog.com/","categories":["CTF"],"description":"\u306f\u3058\u3081\u306b \u6570\u30ab\u6708\u524d\u304b\u3089\u59cb\u3081\u305f\u9b3c\u306epwn\u7279\u8a13\u306b\u3088\u308a\u6700\u8fd1CTF\u3067\u3082\u30d2\u30fc\u30d7\u7cfb\u554f\u984c\u306b\u6311\u6226\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u3064\u3064\u3042\u308b\u306e\u3067\u3059\u304c\u3001\u305f\u307e\u306bShow\u6a5f\u80fd\u304c\u306a\u3044(=\u4e00\u898blibc\u306e\u30a2\u30c9\u30ec\u30b9\u304c\u30ea\u30fc\u30af\u3067\u304d\u306a\u3044)\u30d2\u30fc\u30d7\u7cfb\u554f\u984c\u304c\u51fa\u307e\u3059\u3002 HITCON\u306ebabytcache\u3068\u3044\u3046\u554f\u984c\u306ewriteup\u3092\u8aad\u3093\u3067stdout\u306e _IO_write_ptr \u3060\u304b\u4f55\u3060\u304b\u3092\u3044\u3058\u308c\u3070\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u304c\u3067\u304d\u308b\u3088\u30fc\u3001\u3068\u66f8\u3044\u3066\u3042\u3063\u305f\u306e\u3067\u3059\u304c\u300c\u3075\u30fc\u3093\u300d\u3068\u3044\u3046\u611f\u3058\u3067\u653e\u7f6e\u3057\u3066\u3044\u307e\u3057\u305f\u3002 \u3068\u3053\u308d\u304cSecurity Fest CTF\u306eHalleb3rry\u3067\u540c\u3058\u30c6\u30af\u30cb\u30c3\u30af\u304c\u8981\u6c42\u3055\u308c\u308b\u306a\u3069\u3001\u5272\u3068\u3061\u3089\u307b\u3089\u898b\u304b\u3051\u308b\u306e\u3067\u5fc5\u8981\u304b\u3068\u601d\u3044\u52c9\u5f37\u3059\u308b\u3053\u3068\u306b\u3057\u307e\u3057\u305f\u3002 \u65e5\u672c\u8a9e\u306e\u8a18\u4e8b\u2026","author_name":"ptr-yudai","blog_title":"CTF\u3059\u308b\u305e","height":"190","url":"https://ptr-yudai.hatenablog.com/entry/2019/05/31/235444","title":"\u30d2\u30fc\u30d7\u7cfb\u554f\u984c\u306b\u304a\u3051\u308bstdout / stderr\u3092\u5229\u7528\u3057\u305f\u30e1\u30e2\u30ea\u30ea\u30fc\u30af","type":"rich","width":"100%","author_url":"https://blog.hatena.ne.jp/ptr-yudai/","version":"1.0","provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fptr-yudai.hatenablog.com%2Fentry%2F2019%2F05%2F31%2F235444\" title=\"\u30d2\u30fc\u30d7\u7cfb\u554f\u984c\u306b\u304a\u3051\u308bstdout / stderr\u3092\u5229\u7528\u3057\u305f\u30e1\u30e2\u30ea\u30ea\u30fc\u30af - CTF\u3059\u308b\u305e\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","published":"2019-05-31 23:54:44","provider_url":"https://hatena.blog"}