{"version":"1.0","published":"2017-07-04 00:00:00","author_name":"asannou","categories":[],"width":"100%","blog_url":"https://asannou.hatenablog.com/","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fasannou.hatenablog.com%2Fentry%2F20170704\" title=\"Vuls \u3067 EC2 \u3092\u30d0\u30eb\u30b9\u3055\u308c\u306a\u3044\u305f\u3081\u306b\uff08\u7c21\u6613\u7248\uff09 - \u77e5\u3089\u306a\u3044\u3051\u3069\u304d\u3063\u3068\u305d\u3046\u3002\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","url":"https://asannou.hatenablog.com/entry/20170704","provider_url":"https://hatena.blog","blog_title":"\u77e5\u3089\u306a\u3044\u3051\u3069\u304d\u3063\u3068\u305d\u3046\u3002","type":"rich","image_url":null,"provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/asannou/","title":"Vuls \u3067 EC2 \u3092\u30d0\u30eb\u30b9\u3055\u308c\u306a\u3044\u305f\u3081\u306b\uff08\u7c21\u6613\u7248\uff09","description":"Vuls \u3067 EC2 \u3092\u30d0\u30eb\u30b9\u3055\u308c\u306a\u3044\u305f\u3081\u306b - \u77e5\u3089\u306a\u3044\u3051\u3069\u304d\u3063\u3068\u305d\u3046\u3002 \u3092\u66f8\u3044\u305f\u5f8c\u306b\u77e5\u3063\u305f\u3093\u3067\u3059\u304c\u3001\u9001\u4fe1\u5148 IP \u30a2\u30c9\u30ec\u30b9\u3068 UID \u3092\u6761\u4ef6\u306b\u3057\u3066\u3001\u901a\u4fe1\u3092\u5236\u9650\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u3067\u3059 iptables \u3092\u4f7f\u3063\u3066 EC2 \u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u30e1\u30bf\u30c7\u30fc\u30bf\u3092\u8fd4\u3059 169.254.169.254 \u3078\u306e\u901a\u4fe1\u3092\u3059\u3079\u3066\u7981\u6b62 $ sudo iptables -I OUTPUT -d 169.254.169.254 -j REJECT --reject-with icmp-admin-prohibited \u7981\u6b62\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d $ curl http://169.254.169.254/latest/meta-\u2026"}