{"id":9711,"date":"2013-12-18T08:51:06","date_gmt":"2013-12-17T23:51:06","guid":{"rendered":"http:\/\/twitter-413094031887826945-post"},"modified":"2017-06-03T03:29:19","modified_gmt":"2017-06-02T18:29:19","slug":"xss-for-html5","status":"publish","type":"post","link":"https:\/\/arison.jp\/blog\/2013\/12\/18\/xss-for-html5\/","title":{"rendered":"HTML5\u306eXSS(\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30b9\u30af\u30ea\u30d7\u30c6\u30a3\u30f3\u30b0)\u306b\u3064\u3044\u3066"},"content":{"rendered":"

\u6700\u8fd1\u306eXSS(\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30b9\u30af\u30ea\u30d7\u30c6\u30a3\u30f3\u30b0)\u306b\u3064\u3044\u3066<\/p>\n

\u3010\u8981\u7d04\u3011
\nXSS\u306f\u3001\u5927\u304d\u304f\u5206\u3051\u308b\u3068\u300c\u53cd\u5c04\u578bXSS\u300d\u300c\u84c4\u7a4d\u578bXSS\u300d\u300cDOM Based XSS\u300d\u306e3\u7a2e\u985e\u3002
\n\u5178\u578b\u7684\u306a\u4f8b\u306f\u3001\u691c\u7d22\u30da\u30fc\u30b8\u3067\u306eXSS\u3084\u3001\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\u306e\u78ba\u8a8d\u753b\u9762\u3067\u306eXSS\u306a\u3069\u3002<\/p>\n

<\/p>\n

\u53cd\u5c04\u578bXSS<\/strong>
\n\u3000\u53cd\u5c04\u578b\u306eXSS\u3068\u306f\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u5185\u306b\u542b\u307e\u308c\u308b\u653b\u6483\u8005\u306e\u7528\u610f\u3057\u305f\u30b9\u30af\u30ea\u30d7\u30c8\uff08\u3042\u308b\u3044\u306fHTML\u65ad\u7247\uff09\u304c\u3001\u305d\u306e\u307e\u307e\u30ec\u30b9\u30dd\u30f3\u30b9\u306b\u542b\u307e\u308c\u3066\u767a\u751f\u3059\u308b\u30bf\u30a4\u30d7\u306eXSS\u3067\u3059\u3002<\/p><\/blockquote>\n

\u84c4\u7a4d\u578bXSS<\/strong>
\n\u3000\u84c4\u7a4d\u578bXSS\uff08\u3042\u308b\u3044\u306f\u6301\u7d9a\u578bXSS\uff09\u3068\u306f\u3001\u653b\u6483\u8005\u306e\u7528\u610f\u3057\u305f\u30b9\u30af\u30ea\u30d7\u30c8\u304c\u3044\u3063\u305f\u3093Web\u30b5\u30fc\u30d0\u30fc\u5185\u306b\u683c\u7d0d\u3055\u308c\u3001\u7279\u5b9a\u306e\u30da\u30fc\u30b8\u3092\u88ab\u5bb3\u8005\u304c\u958b\u3044\u305f\u5834\u5408\u306b\u305d\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u304c\u5b9f\u884c\u3055\u308c\u3066\u3057\u307e\u3046\u30bf\u30a4\u30d7\u306eXSS\u3067\u3059\u3002
\n\u3000\u5178\u578b\u4f8b\u3068\u3057\u3066\u306f\u3001Web\u30e1\u30fc\u30eb\u3084\u63b2\u793a\u677f\u3067\u306eXSS\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002\u84c4\u7a4d\u578b\u306eXSS\u306f\u3001\u653b\u6483\u3092\u4ed5\u639b\u3051\u305f\u30bf\u30a4\u30df\u30f3\u30b0\u3068\u5b9f\u969b\u306b\u88ab\u5bb3\u304c\u767a\u751f\u3059\u308b\u30bf\u30a4\u30df\u30f3\u30b0\u306b\u6642\u9593\u5dee\u304c\u3042\u3063\u3066\u3082\u540d\u79f0\u901a\u308a\u6c38\u7d9a\u5316\u3057\u3066\u653b\u6483\u304c\u6210\u7acb\u3059\u308b\u306a\u3069\u3001\u53cd\u5c04\u578bXSS\u306b\u6bd4\u3079\u88ab\u5bb3\u304c\u5927\u304d\u304f\u306a\u308b\u3053\u3068\u304c\u7279\u5fb4\u3067\u3059\u3002<\/p><\/blockquote>\n

DOM Based XSS<\/strong><\/p>\n

\u3000\u53cd\u5c04\u578bXSS\u3001\u84c4\u7a4d\u578bXSS\u306e\u539f\u56e0\u306e\u307b\u3068\u3093\u3069\u306f\u3001Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u304a\u3044\u3066\u30b5\u30fc\u30d0\u30fc\u4e0a\u3067HTML\u3092\u751f\u6210\u3057\u305f\u969b\u306e\u30a8\u30b9\u30b1\u30fc\u30d7\u6f0f\u308c\u3067\u3059\u304c\u3001DOM Based XSS\u306f\u30b5\u30fc\u30d0\u30fc\u4e0a\u3067\u306eHTML\u751f\u6210\u305d\u306e\u3082\u306e\u306b\u306f\u554f\u984c\u306f\u306a\u304f\u3001\u305d\u306e\u5f8c\u30d6\u30e9\u30a6\u30b6\u30fc\u4e0a\u3067HTML\u3092\u8868\u793a\u3057JavaScript\u304c\u5b9f\u884c\u3055\u308c\u305f\u3068\u304d\u306b\u3001JavaScript\u4e0a\u306e\u30b3\u30fc\u30c9\u306b\u8106\u5f31\u6027\u304c\u3042\u308b\u305f\u3081\u306b\u767a\u751f\u3059\u308bXSS\u3067\u3059\u3002<\/p>\n

\u3000\u4f8b\u3048\u3070\u3001document.write( document.referrer ); \u3068\u3044\u3046JavaScript\u30b3\u30fc\u30c9\u3067\u306f\u3001\u653b\u6483\u8005\u306f\u88ab\u5bb3\u8005\u3092http:\/\/example.com\/?>script<alert(document.domain);>\/script< \u306e\u3088\u3046\u306aURL\u304b\u3089\u653b\u6483\u5bfe\u8c61\u30b5\u30a4\u30c8\u3078\u30a2\u30af\u30bb\u30b9\u3055\u305b\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u653b\u6483\u7528\u306eJavaScript\u30b3\u30fc\u30c9\u3092\u30ea\u30d5\u30a1\u30e9\u30fc\u5185\u306b\u542b\u3081\u3001\u88ab\u5bb3\u8005\u306e\u30d6\u30e9\u30a6\u30b6\u30fc\u4e0a\u3067\u5b9f\u884c\u3055\u305b\u308b\u3053\u3068\u304c\u53ef\u80fd\u3068\u306a\u308a\u307e\u3059\u3002<\/p><\/blockquote>\n

HTML5\u306e\u666e\u53ca\u306b\u3088\u3063\u3066\u3001JavaScript\u306b\u3088\u308bDOM\u64cd\u4f5c\u6642\u306b\u767a\u751f\u3059\u308bXSS\u3001\u3059\u306a\u308f\u3061DOM Based XSS\u304c\u6025\u5897\u4e2d\u3002<\/p>\n

DOM Based XSS\u3078\u306e\u5177\u4f53\u7684\u306a\u5bfe\u7b56\u3068\u3057\u3066\u306f\u3001<\/p>\n

    \n
  1. \u4f7f\u7528\u3057\u3066\u3044\u308bJavaScript\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u9069\u5207\u306a\u30d0\u30fc\u30b8\u30e7\u30f3\u30a2\u30c3\u30d7<\/li>\n
  2. DOM\u64cd\u4f5cAPI\u306e\u9069\u5207\u306a\u4f7f\u7528<\/li>\n
  3. \u6271\u3046URL\u3092http\u304a\u3088\u3073https\u306b\u9650\u5b9a\u3059\u308b<\/li>\n<\/ol>\n

    \u5177\u4f53\u7684\u306a\u8a18\u8ff0\u65b9\u6cd5\u306f\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

    HTML5\u6642\u4ee3\u306e\u300c\u65b0\u3057\u3044\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30fb\u30a8\u30c1\u30b1\u30c3\u30c8\u300d\uff082\uff09\uff1a\u5358\u7d14\u3067\u306f\u306a\u3044\u3001\u6700\u65b0\u300c\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30b9\u30af\u30ea\u30d7\u30c6\u30a3\u30f3\u30b0\u300d\u4e8b\u60c5 (1\/3) – @it
    \n http:\/\/www.atmarkit.co.jp\/ait\/articles\/1312\/17\/news010.html<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

    \u6700\u8fd1\u306eXSS(\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30b9\u30af\u30ea\u30d7\u30c6\u30a3\u30f3\u30b0)\u306b\u3064\u3044\u3066 \u3010\u8981\u7d04\u3011 XSS\u306f\u3001\u5927\u304d\u304f\u5206\u3051\u308b\u3068\u300c\u53cd\u5c04\u578bXSS\u300d\u300c\u84c4\u7a4d\u578bXSS\u300d\u300cDOM Based XSS\u300d\u306e3\u7a2e\u985e\u3002 \u5178\u578b\u7684\u306a\u4f8b\u306f\u3001\u691c\u7d22\u30da\u30fc\u30b8\u3067\u306eXSS\u3084\u3001\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\u306e […]<\/p>\n","protected":false},"author":2,"featured_media":23789,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"status","meta":{"footnotes":""},"categories":[4],"tags":[145,208],"class_list":["post-9711","post","type-post","status-publish","format-status","has-post-thumbnail","hentry","category-diary","tag-html","tag-security","post_format-post-format-status"],"_links":{"self":[{"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/posts\/9711","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/comments?post=9711"}],"version-history":[{"count":0,"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/posts\/9711\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/media\/23789"}],"wp:attachment":[{"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/media?parent=9711"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/categories?post=9711"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/tags?post=9711"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}