{"id":533,"date":"2025-12-12T17:31:11","date_gmt":"2025-12-12T08:31:11","guid":{"rendered":"https:\/\/www.cscloud.co.jp\/vulnerability-audit\/?p=533"},"modified":"2025-12-12T17:31:11","modified_gmt":"2025-12-12T08:31:11","slug":"csrf","status":"publish","type":"post","link":"https:\/\/www.cscloud.co.jp\/vulnerability-audit\/knowledge\/csrf\/","title":{"rendered":"CSRF\uff08\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30ea\u30af\u30a8\u30b9\u30c8\u30d5\u30a9\u30fc\u30b8\u30a7\u30ea\uff09\u3068\u306f\uff1f<br>XSS\u3068\u306e\u9055\u3044\u3084\u4ed5\u7d44\u307f\u3001\u30ea\u30b9\u30af\u3068\u5bfe\u7b56\u306b\u3064\u3044\u3066\u89e3\u8aac"},"content":{"rendered":"<div role=\"navigation\" aria-label=\"\u76ee\u6b21\" class=\"simpletoc wp-block-simpletoc-toc\"><h2 class=\"simpletoc-title\">\u76ee\u6b21<\/h2>\n<style>html { scroll-behavior: smooth; }<\/style><ul class=\"simpletoc-list\">\n<li><a href=\"#csrf\">CSRF\uff08\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30ea\u30af\u30a8\u30b9\u30c8\u30d5\u30a9\u30fc\u30b8\u30a7\u30ea\uff09\u3068\u306f\uff1f<\/a>\n\n\n<\/li>\n\n<li><a href=\"#xss\">CSRF\u3068XSS\uff08\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30b9\u30af\u30ea\u30d7\u30c6\u30a3\u30f3\u30b0\uff09\u3068\u306e\u9055\u3044\u306f\uff1f<\/a>\n\n\n<\/li>\n\n<li><a href=\"#Risk\">CSRF\u653b\u6483\u306e\u30ea\u30b9\u30af\u3068\u5bfe\u8c61\u3068\u306f\uff1f<\/a>\n\n\n<\/li>\n\n<li><a href=\"#Security\">CSRF\u306e\u6709\u52b9\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3068\u306f<\/a>\n\n\n<\/li>\n\n<\/li>\n\n<\/li>\n\n<li><a href=\"#CSC_VulnerabilityAssessment\">\u8106\u5f31\u6027\u8a3a\u65ad\uff08\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8a3a\u65ad\uff09\u306a\u3089\u300c\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30af\u30e9\u30a6\u30c9\u8106\u5f31\u6027\u8a3a\u65ad\u30b5\u30fc\u30d3\u30b9\u300d<\/a>\n<\/li><\/ul><\/div>\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h2 class=\"wp-block-heading has-text-align-center\" id=\"csrf\"><strong>CSRF\uff08\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30ea\u30af\u30a8\u30b9\u30c8\u30d5\u30a9\u30fc\u30b8\u30a7\u30ea\uff09<\/strong>\u3068\u306f\uff1f<\/h2>\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<p>CSRF\u306e\u6b63\u5f0f\u540d\u79f0\u3084\u8aad\u307f\u65b9\u306a\u3069\u306e\u57fa\u790e\u77e5\u8b58\u306b\u52a0\u3048\u3001\u306a\u305c\u653b\u6483\u304c\u6210\u7acb\u3057\u3066\u3057\u307e\u3046\u306e\u304b\u3068\u3044\u3046\u4ed5\u7d44\u307f\u3084\u3001\u653b\u6483\u5b8c\u4e86\u307e\u3067\u306e\u5177\u4f53\u7684\u306a\u6d41\u308c\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"524\" height=\"360\" src=\"http:\/\/www.cscloud.co.jp\/vulnerability-audit\/wp\/wp-content\/uploads\/2025\/12\/img_va_knowledge_csrf_v.png\" alt=\"\" class=\"wp-image-535\" srcset=\"https:\/\/www.cscloud.co.jp\/vulnerability-audit\/wp\/wp-content\/uploads\/2025\/12\/img_va_knowledge_csrf_v.png 524w, https:\/\/www.cscloud.co.jp\/vulnerability-audit\/wp\/wp-content\/uploads\/2025\/12\/img_va_knowledge_csrf_v-300x206.png 300w\" sizes=\"(max-width: 524px) 100vw, 524px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n<h3 class=\"wp-block-heading has-text-align-center\" id=\"csrf%25e3%2581%25a8%25e3%2581%25af\">CSRF\u3068\u306f\uff1f<\/h3>\n\n\n<p>CSRF\uff08\u6b63\u5f0f\u540d\u79f0\uff1aCross-Site Request Forgeries\uff09\u306f\u3001\u300cCSRF\uff08\u30b7\u30fc\u30b5\u30fc\u30d5\uff09\u300d\u3084\u300cXSRF\u300d\u3068\u3082\u547c\u3070\u308c\u3001\u76f4\u8a33\u3059\u308b\u3068\u300c\u30b5\u30a4\u30c8\u6a2a\u65ad\u7684\u306a\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u507d\u9020\u300d\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u308c\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u653b\u6483\u8005\u306e\u7528\u610f\u3057\u305f\u300c\u7f60\u30b5\u30a4\u30c8\u300d\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3053\u3068\u3067\u3001\u30ed\u30b0\u30a4\u30f3\u4e2d\u306eWeb\u30b5\u30a4\u30c8\u306b\u5bfe\u3057\u3001\u672c\u4eba\u306e\u8a31\u53ef\u306a\u304f\u30b3\u30de\u30f3\u30c9\uff08\u9001\u91d1\u3084\u6295\u7a3f\u306a\u3069\uff09\u304c\u5f37\u5236\u7684\u306b\u9001\u4fe1\u3055\u308c\u3066\u3057\u307e\u3046\u8106\u5f31\u6027\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u4f8b\u3048\u3070\u3001\u30cd\u30c3\u30c8\u30d0\u30f3\u30ad\u30f3\u30b0\u306b\u30ed\u30b0\u30a4\u30f3\u4e2d\u306e\u72b6\u614b\u3067\u7f60\u30b5\u30a4\u30c8\u3092\u8e0f\u3093\u3060\u969b\u3001\u88cf\u5074\u3067\u52dd\u624b\u306b\u300c\u9001\u91d1\u30ea\u30af\u30a8\u30b9\u30c8\u300d\u304c\u9001\u4fe1\u3055\u308c\u308b\u30b1\u30fc\u30b9\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002Web\u30b5\u30a4\u30c8\u5074\u304c\u300c\u305d\u306e\u64cd\u4f5c\u304c\u672c\u5f53\u306b\u30e6\u30fc\u30b6\u30fc\u672c\u4eba\u306e\u610f\u601d\u306b\u3088\u308b\u3082\u306e\u304b\u300d\u3092\u6b63\u3057\u304f\u691c\u8a3c\u3067\u304d\u306a\u3044\u5834\u5408\u3001\u653b\u6483\u8005\u306e\u306a\u308a\u3059\u307e\u3057\u64cd\u4f5c\u304c\u6210\u7acb\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n\n\n<h3 class=\"wp-block-heading has-text-align-center\" id=\"csrf%25e6%2594%25bb%25e6%2592%2583%25e3%2581%25ae%25e4%25bb%2595%25e7%25b5%2584%25e3%2581%25bf%25e3%2581%25a8%25e6%2594%25bb%25e6%2592%2583%25e6%2588%2590%25e7%25ab%258b%25e3%2581%25be%25e3%2581%25a7%25e3%2581%25ae%25e6%25b5%2581%25e3%2582%258c\">CSRF\u653b\u6483\u306e\u4ed5\u7d44\u307f\u3068\u653b\u6483\u6210\u7acb\u307e\u3067\u306e\u6d41\u308c<\/h3>\n\n\n<p>CSRF\u653b\u6483\u304c\u3069\u306e\u3088\u3046\u306b\u6210\u7acb\u3059\u308b\u306e\u304b\u3001\u5177\u4f53\u7684\u306a\u6d41\u308c\u3067\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002 \u653b\u6483\u306e\u30dd\u30a4\u30f3\u30c8\u306f\u3001Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u5229\u7528\u8005\u3092\u8b58\u5225\u3059\u308b\u305f\u3081\u306b\u7528\u3044\u308bCookie\u306a\u3069\u300c\u30bb\u30c3\u30b7\u30e7\u30f3ID\u300d\u306e\u4ed5\u7d44\u307f\u3092\u60aa\u7528\u3059\u308b\u70b9\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p><a href=\"https:\/\/www.ipa.go.jp\/security\/vuln\/websecurity\/csrf.html\" target=\"_blank\" rel=\"noopener\" title=\"\">IPA\uff08\u72ec\u7acb\u884c\u653f\u6cd5\u4eba\u60c5\u5831\u51e6\u7406\u63a8\u9032\u6a5f\u69cb\uff09\u304c\u516c\u958b\u3057\u3066\u3044\u308b\u30e2\u30c7\u30eb\u30b1\u30fc\u30b9<\/a>\u3092\u57fa\u306b\u3001\u653b\u6483\u6210\u7acb\u307e\u3067\u306e\u30b9\u30c6\u30c3\u30d7\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n<div class=\"wp-block-image is-style-default\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"339\" src=\"https:\/\/www.cscloud.co.jp\/vulnerability-audit\/wp\/wp-content\/uploads\/2025\/12\/img_va_knowledge_csrf-1.png\" alt=\"CSRF\uff08\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30ea\u30af\u30a8\u30b9\u30c8\u30d5\u30a9\u30fc\u30b8\u30a7\u30ea\uff09\u653b\u6483\u306e\u4ed5\u7d44\u307f\u56f3\u89e3\uff5c\u5229\u7528\u8005\u304c\u30ed\u30b0\u30a4\u30f3\u5f8c\u306b\u7f60\u30b5\u30a4\u30c8\u3092\u95b2\u89a7\u3057\u3001\u610f\u56f3\u3057\u306a\u3044\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u9001\u4fe1\u3055\u308c\u308b\u307e\u3067\u306e\u30b9\u30c6\u30c3\u30d7\" class=\"wp-image-552\" style=\"width:600px\" srcset=\"https:\/\/www.cscloud.co.jp\/vulnerability-audit\/wp\/wp-content\/uploads\/2025\/12\/img_va_knowledge_csrf-1.png 600w, https:\/\/www.cscloud.co.jp\/vulnerability-audit\/wp\/wp-content\/uploads\/2025\/12\/img_va_knowledge_csrf-1-300x170.png 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30ed\u30b0\u30a4\u30f3\u3057\u3066\u5229\u7528\u958b\u59cb<\/strong><br>\u5229\u7528\u8005\u304cWeb\u30b5\u30a4\u30c8\uff08\u4f8b\uff1a\u9280\u884c\u3084EC\u30b5\u30a4\u30c8\uff09\u306b\u30ed\u30b0\u30a4\u30f3\u3057\u307e\u3059\u3002\u3053\u306e\u6642\u3001\u30d6\u30e9\u30a6\u30b6\u306b\u306f\u5229\u7528\u8005\u3092\u8b58\u5225\u3059\u308b\u305f\u3081\u306e\u300cCookie\uff08\u30af\u30c3\u30ad\u30fc\uff09\u300d\u304c\u4fdd\u5b58\u3055\u308c\u3001\u30ed\u30b0\u30a4\u30f3\u72b6\u614b\u304c\u7dad\u6301\u3055\u308c\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u653b\u6483\u8005\u304c\u507d\u30e1\u30fc\u30eb\u306a\u3069\u3067\u8a98\u5c0e<\/strong><br>\u653b\u6483\u8005\u306f\u3001Web\u30b5\u30a4\u30c8\u306b\u5bfe\u3057\u3066\u4e0d\u6b63\u306a\u547d\u4ee4\uff08\u9001\u91d1\u3084\u8cfc\u5165\u306a\u3069\uff09\u3092\u9001\u308b\u3088\u3046\u4ed5\u7d44\u3093\u3060\u300c\u7f60\u30b5\u30a4\u30c8\u300d\u3092\u7528\u610f\u3057\u3001\u5de7\u5999\u306a\u507d\u30e1\u30fc\u30eb\u3084SNS\u306a\u3069\u3092\u901a\u3058\u3066\u5229\u7528\u8005\u3092\u305d\u3053\u3078\u8a98\u5c0e\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u3046\u3063\u304b\u308a\u30a2\u30af\u30bb\u30b9<\/strong><br>\u5229\u7528\u8005\u306f\u305d\u308c\u304c\u7f60\u30b5\u30a4\u30c8\u3060\u3068\u306f\u6c17\u3065\u304b\u305a\u3001\u30ed\u30b0\u30a4\u30f3\u72b6\u614b\u306e\u307e\u307e\u8a98\u5c0e\u3055\u308c\u305f\u30ea\u30f3\u30af\u3092\u30af\u30ea\u30c3\u30af\u3057\u3001\u7f60\u30b5\u30a4\u30c8\u3078\u30a2\u30af\u30bb\u30b9\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u52dd\u624b\u306b\u547d\u4ee4\u3092\u9001\u4fe1\u30fb\u5b9f\u884c<\/strong><br>\u7f60\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3057\u305f\u77ac\u9593\u3001\u5229\u7528\u8005\u306e\u30d6\u30e9\u30a6\u30b6\u304b\u3089Web\u30b5\u30a4\u30c8\u306b\u5411\u3051\u3066\u3001\u653b\u6483\u8005\u304c\u4ed5\u8fbc\u3093\u3060\u547d\u4ee4\uff08\u30ea\u30af\u30a8\u30b9\u30c8\uff09\u304c\u52dd\u624b\u306b\u9001\u4fe1\u3055\u308c\u307e\u3059\u3002<br>\u3053\u306e\u969b\u3001<strong>\u30d6\u30e9\u30a6\u30b6\u306b\u4fdd\u5b58\u3055\u308c\u3066\u3044\u305f\u300cCookie\u300d\u3082\u4e00\u7dd2\u306b\u9001\u4fe1\u3055\u308c\u3066\u3057\u307e\u3046<\/strong>\u305f\u3081\u3001Web\u30b5\u30a4\u30c8\u5074\u306f\u3053\u308c\u3092\u300c\u672c\u4eba\u306b\u3088\u308b\u6b63\u898f\u306e\u64cd\u4f5c\u300d\u3068\u52d8\u9055\u3044\u3057\u3066\u53d7\u3051\u5165\u308c\u3001\u9001\u91d1\u3084\u8cfc\u5165\u306a\u3069\u306e\u51e6\u7406\u3092\u5b9f\u884c\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/li>\n<\/ol>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h2 class=\"wp-block-heading has-text-align-center\" id=\"xss\">CSRF\u3068<strong>XSS\uff08\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30b9\u30af\u30ea\u30d7\u30c6\u30a3\u30f3\u30b0\uff09\u3068\u306e\u9055\u3044<\/strong>\u306f\uff1f<\/h2>\n\n\n<p>CSRF\u3068\u3088\u304f\u6df7\u540c\u3055\u308c\u308b\u8106\u5f31\u6027\u306b\u3001XSS\uff08\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30b9\u30af\u30ea\u30d7\u30c6\u30a3\u30f3\u30b0\uff09\u304c\u3042\u308a\u307e\u3059\u3002 \u3069\u3061\u3089\u3082Web\u30d6\u30e9\u30a6\u30b6\u7d4c\u7531\u3067\u653b\u6483\u304c\u884c\u308f\u308c\u307e\u3059\u304c\u3001\u653b\u6483\u306e\u4ed5\u7d44\u307f\u3084\u72d9\u3044\u306f\u660e\u78ba\u306b\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u3053\u3067\u306f\u3001\u3053\u306e2\u3064\u306e\u8106\u5f31\u6027\u306e\u6839\u672c\u7684\u306a\u9055\u3044\u3068\u3001\u4e21\u8005\u304c\u7d44\u307f\u5408\u308f\u3055\u3063\u305f\u5834\u5408\u306e\u5371\u967a\u6027\u306b\u3064\u3044\u3066\u3082\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n<h3 class=\"wp-block-heading has-text-align-center\" id=\"csrf%25e3%2581%25a8xss%25e6%2594%25bb%25e6%2592%2583%25e3%2581%25ae%25e4%25b8%25bb%25e4%25bd%2593%25e7%259b%25ae%25e7%259a%2584%25e5%25bd%25b1%25e9%259f%25bf%25e3%2581%25ae%25e9%2581%2595%25e3%2581%2584%25e3%2581%25a8%25e3%2581%25af\">CSRF\u3068XSS\u653b\u6483\u306e\u4e3b\u4f53\u30fb\u76ee\u7684\u30fb\u5f71\u97ff\u306e\u9055\u3044\u3068\u306f\uff1f<\/h3>\n\n\n<p>CSRF\u3068XSS\u306e\u6c7a\u5b9a\u7684\u306a\u9055\u3044\u306f\u3001\u653b\u6483\u306e\u8d77\u70b9\u3068\u306a\u308b\u300c\u4ed5\u7d44\u307f\u300d\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>CSRF\uff08\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30ea\u30af\u30a8\u30b9\u30c8\u30d5\u30a9\u30fc\u30b8\u30a7\u30ea\uff09 \u30e6\u30fc\u30b6\u30fc\u306e\u610f\u56f3\u3057\u306a\u3044\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u5229\u7528\u3059\u308b\u653b\u6483\u3067\u3059\u3002 Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u3001\u30ed\u30b0\u30a4\u30f3\u4e2d\u306e\u30e6\u30fc\u30b6\u30fc\u304b\u3089\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u300c\u6b63\u3057\u3044\u3082\u306e\u300d\u3068\u3057\u3066\u7121\u6761\u4ef6\u306b\u4fe1\u983c\u3057\u3066\u3057\u307e\u3046\u6027\u8cea\u3092\u60aa\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>XSS\uff08\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30b9\u30af\u30ea\u30d7\u30c6\u30a3\u30f3\u30b0\uff09 Web\u30b5\u30a4\u30c8\u306b\u4e0d\u6b63\u306a\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u57cb\u3081\u8fbc\u3080\u653b\u6483\u3067\u3059\u3002 \u30e6\u30fc\u30b6\u30fc\u304cWeb\u30b5\u30a4\u30c8\uff08\u304a\u3088\u3073\u305d\u3053\u306b\u8868\u793a\u3055\u308c\u308b\u5185\u5bb9\uff09\u3092\u4fe1\u983c\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u60aa\u7528\u3057\u3001\u30d6\u30e9\u30a6\u30b6\u4e0a\u3067\u60aa\u610f\u3042\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u5b9f\u884c\u3055\u305b\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305d\u308c\u305e\u308c\u306e\u9055\u3044\u3092\u6574\u7406\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>\u9805\u76ee<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>CSRF<br>\uff08\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30ea\u30af\u30a8\u30b9\u30c8\u30d5\u30a9\u30fc\u30b8\u30a7\u30ea\uff09<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>XSS<br>\uff08\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30b9\u30af\u30ea\u30d7\u30c6\u30a3\u30f3\u30b0\uff09<\/strong><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>\u653b\u6483\u6982\u8981<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">\u30e6\u30fc\u30b6\u30fc\u306e\u610f\u56f3\u3057\u306a\u3044\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u5229\u7528\u3059\u308b\u653b\u6483<\/td><td class=\"has-text-align-center\" data-align=\"center\">Web\u30b5\u30a4\u30c8\u306b\u4e0d\u6b63\u306a\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u57cb\u3081\u8fbc\u3080\u653b\u6483<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>\u653b\u6483\u306e\u4e3b\u4f53<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">\u30e6\u30fc\u30b6\u30fc\u306e\u30d6\u30e9\u30a6\u30b6<\/td><td class=\"has-text-align-center\" data-align=\"center\"><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>\u653b\u6483\u8005\u306e\u72d9\u3044<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>\u30e6\u30fc\u30b6\u30fc\u306b\u306a\u308a\u3059\u307e\u3057\u3066\u300c\u51e6\u7406\u300d\u3092\u5b9f\u884c\u3055\u305b\u308b\u3053\u3068<\/strong><br>\uff08\u30e6\u30fc\u30b6\u30fc\u81ea\u8eab\u304c\u7121\u81ea\u899a\u306b\u8cfc\u5165\u30fb\u9000\u4f1a\u30fb\u8a2d\u5b9a\u5909\u66f4\u306a\u3069\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u4fe1\u3057\u3066\u3057\u307e\u3046\uff09<\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>\u30e6\u30fc\u30b6\u30fc\u306e\u30d6\u30e9\u30a6\u30b6\u4e0a\u3067\u300c\u4e0d\u6b63\u306a\u30b9\u30af\u30ea\u30d7\u30c8\u300d\u3092\u5b9f\u884c\u3055\u305b\u308b\u3053\u3068<\/strong><br>\uff08cookie\u306e\u76d7\u53d6\u3001\u507d\u306e\u5165\u529b\u30d5\u30a9\u30fc\u30e0\u8868\u793a\u3001\u30a6\u30a3\u30eb\u30b9\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u30b5\u30a4\u30c8\u3078\u306e\u8a98\u5c0e\u306a\u3069\uff09<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>\u4e3b\u306a\u5f71\u97ff<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">\u4e0d\u6b63\u9001\u91d1\u3001\u8a2d\u5b9a\u5909\u66f4\u3001\u4e0d\u6b63\u8cfc\u5165\u306a\u3069\u3001\u30b5\u30fc\u30d0\u5074\u306e\u72b6\u614b\u3092\u5909\u5316\u3055\u305b\u308b\u3053\u3068<\/td><td class=\"has-text-align-center\" data-align=\"center\">Cookie\uff08\u30bb\u30c3\u30b7\u30e7\u30f3ID\uff09\u306e\u76d7\u53d6\u3001\u507d\u30ed\u30b0\u30a4\u30f3\u753b\u9762\u306e\u8868\u793a\uff08\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\uff09\u3001\u30a6\u30a4\u30eb\u30b9\u611f\u67d3\u306a\u3069<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>CSRF\u306f\u300c\u52dd\u624b\u306b\u64cd\u4f5c\u3055\u308c\u308b\u653b\u6483\u300d\u3067\u3042\u308a\u3001XSS\u306f\u300c\u60c5\u5831\u3092\u76d7\u307e\u308c\u305f\u308a\u3001\u753b\u9762\u3092\u6539\u3056\u3093\u3055\u308c\u305f\u308a\u3059\u308b\u653b\u6483\u300d\u3068\u3044\u3048\u307e\u3059\u3002<\/p>\n\n\n<h3 class=\"wp-block-heading has-text-align-center\" id=\"csrf%25e5%25af%25be%25e7%25ad%2596%25e3%2581%258c%25e7%25a0%25b4%25e3%2582%2589%25e3%2582%258c%25e3%2582%258bxss%25e8%2584%2586%25e5%25bc%25b1%25e6%2580%25a7%25e3%2581%258c%25e5%25bc%2595%25e3%2581%258d%25e8%25b5%25b7%25e3%2581%2593%25e3%2581%2599%25e8%25a4%2587%25e5%2590%2588%25e3%2583%25aa%25e3%2582%25b9%25e3%2582%25af\">CSRF\u5bfe\u7b56\u304c\u7834\u3089\u308c\u308b\uff1fXSS\u8106\u5f31\u6027\u304c\u5f15\u304d\u8d77\u3053\u3059\u8907\u5408\u30ea\u30b9\u30af<\/h3>\n\n\n<p>\u6ce8\u610f\u304c\u5fc5\u8981\u306a\u306e\u306f\u3001\u3053\u308c\u3089\u306f\u6c7a\u3057\u3066\u72ec\u7acb\u3057\u305f\u30ea\u30b9\u30af\u3067\u306f\u306a\u3044\u3068\u3044\u3046\u70b9\u3067\u3059\u3002\u3082\u3057Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306bXSS\u8106\u5f31\u6027\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u3001CSRF\u5bfe\u7b56\u3092\u884c\u3063\u3066\u3044\u3066\u3082\u7a81\u7834\u3055\u308c\u3066\u3057\u307e\u3046\u3068\u3044\u3046\u300c\u8907\u5408\u7684\u306a\u30ea\u30b9\u30af\u300d\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u901a\u5e38\u3001CSRF\u5bfe\u7b56\u306b\u306f\u300c\u30c8\u30fc\u30af\u30f3\u300d\u3068\u547c\u3070\u308c\u308b\u4ed5\u7d44\u307f\u304c\u7528\u3044\u3089\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u9001\u4fe1\u3055\u308c\u305f\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u300c\u507d\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u300d\u3067\u306f\u306a\u3044\u3053\u3068\u3092\u8a3c\u660e\u3059\u308b\u305f\u3081\u306e\u3001\u3044\u308f\u3070\u4e00\u6642\u7684\u306a\u300c\u8eab\u5206\u8a3c\u660e\u66f8\u300d\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3057\u304b\u3057\u3001XSS\u306b\u3088\u3063\u3066\u653b\u6483\u8005\u304c\u30da\u30fc\u30b8\u5185\u3067\u4efb\u610f\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u5b9f\u884c\u3067\u304d\u308b\u72b6\u614b\u306b\u3042\u308b\u3068\u3001\u3053\u306e\u5bfe\u7b56\u7528\u30c8\u30fc\u30af\u30f3\u3055\u3048\u3082\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u3088\u3063\u3066\u76d7\u307f\u53d6\u3089\u308c\u3066\u3057\u307e\u3046\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30c8\u30fc\u30af\u30f3\u304c\u6f0f\u3048\u3044\u3059\u308c\u3070\u3001\u653b\u6483\u8005\u306f\u305d\u308c\u3092\u60aa\u7528\u3057\u3066\u300c\u6b63\u898f\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u300d\u306b\u898b\u305b\u304b\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u305f\u3081\u3001\u7d50\u679c\u7684\u306bCSRF\u653b\u6483\u3082\u9632\u3052\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u5177\u4f53\u7684\u306a\u5bfe\u7b56\u306b\u3064\u3044\u3066\u306f\u5f8c\u8ff0\u3057\u307e\u3059\u304c\u3001XSS\u8106\u5f31\u6027\u3092\u653e\u7f6e\u3059\u308b\u3053\u3068\u306f\u3001CSRF\u5bfe\u7b56\u3092\u3082\u7121\u52b9\u5316\u3059\u308b\u30ea\u30b9\u30af\u304c\u3042\u308b\u70b9\u3092\u7406\u89e3\u3057\u3001\u4e21\u65b9\u306b\u5bfe\u3057\u3066\u9069\u5207\u306a\u5bfe\u7b56\u3092\u8b1b\u3058\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h2 class=\"wp-block-heading has-text-align-center\" id=\"Risk\">CSRF\u653b\u6483\u306e<strong>\u30ea\u30b9\u30af\u3068\u5bfe\u8c61<\/strong>\u3068\u306f\uff1f<\/h2>\n\n\n<p>CSRF\u653b\u6483\u3092\u53d7\u3051\u308b\u3068\u3001\u30e6\u30fc\u30b6\u30fc\u3060\u3051\u3067\u306a\u304fWeb\u30b5\u30fc\u30d3\u30b9\u904b\u55b6\u4f01\u696d\u3082\u4fe1\u7528\u5931\u589c\u3084\u640d\u5bb3\u8ce0\u511f\u3068\u3044\u3063\u305f\u5927\u304d\u306a\u30c0\u30e1\u30fc\u30b8\u3092\u8ca0\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u4ee3\u8868\u7684\u306a\u4f8b\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n<h3 class=\"wp-block-heading has-text-align-center\" id=\"csrf%25e3%2581%25ab%25e3%2582%2588%25e3%2581%25a3%25e3%2581%25a6%25e5%25bc%2595%25e3%2581%258d%25e8%25b5%25b7%25e3%2581%2593%25e3%2581%2595%25e3%2582%258c%25e3%2582%258b%25e4%25b8%25bb%25e3%2581%25aa%25e8%25a2%25ab%25e5%25ae%25b3\">CSRF\u306b\u3088\u3063\u3066\u5f15\u304d\u8d77\u3053\u3055\u308c\u308b\u4e3b\u306a\u88ab\u5bb3<\/h3>\n\n\n<p>CSRF\u3092\u653e\u7f6e\u3059\u308b\u3068\u3001\u30ed\u30b0\u30a4\u30f3\u4e2d\u306e\u5229\u7528\u8005\u306e\u6a29\u9650\u304c\u60aa\u7528\u3055\u308c\u3001\u653b\u6483\u8005\u306b\u3088\u308b<strong>\u300c\u306a\u308a\u3059\u307e\u3057\u300d\u64cd\u4f5c<\/strong>\u3092\u8a31\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u5177\u4f53\u7684\u306a\u88ab\u5bb3\u306f\u30b5\u30fc\u30d3\u30b9\u306e\u6027\u8cea\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u304c\u3001\u91d1\u92ad\u7684\u306a\u88ab\u5bb3\u3060\u3051\u3067\u306a\u304f\u3001\u5229\u7528\u8005\u304c\u77e5\u3089\u306c\u9593\u306b\u72af\u7f6a\u306e\u7247\u68d2\u3092\u62c5\u304c\u3055\u308c\u308b\u3088\u3046\u306a\u793e\u4f1a\u7684\u88ab\u5bb3\u306b\u767a\u5c55\u3059\u308b\u30b1\u30fc\u30b9\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\uff1c\u88ab\u5bb3\u4f8b\uff1e<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>EC\u30b5\u30a4\u30c8\u30fbWeb\u30b5\u30fc\u30d3\u30b9<\/strong><br>\u30fb\u610f\u56f3\u3057\u306a\u3044\u5546\u54c1\u306e\u8cfc\u5165\uff08\u91d1\u92ad\u7684\u88ab\u5bb3\uff09<br>\u30fb\u767b\u9332\u60c5\u5831\u306e\u66f8\u304d\u63db\u3048\u3001\u9000\u4f1a\u51e6\u7406\u306e\u52dd\u624b\u306a\u5b9f\u884c<\/li>\n\n\n\n<li><strong>SNS\u30fb\u63b2\u793a\u677f<\/strong><br>\u30fb\u72af\u7f6a\u4e88\u544a\u3084\u8ab9\u8b17\u4e2d\u50b7\u306a\u3069\u3001\u610f\u56f3\u3057\u306a\u3044\u66f8\u304d\u8fbc\u307f\u306e\u6295\u7a3f<br>\u30fb\u203b\u5229\u7528\u8005\u304c<strong>\u610f\u56f3\u305b\u305a\u300c\u52a0\u5bb3\u8005\u300d\u3068\u3057\u3066\u6271\u308f\u308c\u3066\u3057\u307e\u3046\u30ea\u30b9\u30af<\/strong>\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>Web\u30e1\u30fc\u30eb\u30fb\u7ba1\u7406\u753b\u9762<\/strong><br>\u30fb\u30e1\u30fc\u30eb\u8ee2\u9001\u8a2d\u5b9a\u306e\u5909\u66f4\u306b\u3088\u308b\u6a5f\u5bc6\u60c5\u5831\u306e\u6f0f\u3048\u3044<br>\u30fb\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u52dd\u624b\u306a\u5909\u66f4\u306b\u3088\u308b<strong>\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u4e57\u3063\u53d6\u308a<\/strong><\/li>\n<\/ul>\n\n\n\n<p>\u7279\u306bCSRF\u653b\u6483\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u64cd\u4f5c\u5b8c\u4e86\u753b\u9762\u3084\u8cfc\u5165\u5b8c\u4e86\u30e1\u30fc\u30eb\u3092\u898b\u308b\u307e\u3067\u88ab\u5bb3\u306b\u6c17\u3065\u304b\u306a\u3044\u30b1\u30fc\u30b9\u304c\u591a\u304f\u3001\u767a\u898b\u304c\u9045\u308c\u308b\u50be\u5411\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n<h3 class=\"wp-block-heading has-text-align-center\" id=\"%25e7%2589%25b9%25e3%2581%25ab%25e6%25b3%25a8%25e6%2584%258f%25e3%2581%258c%25e5%25bf%2585%25e8%25a6%2581%25e3%2581%25aaweb%25e3%2582%25b5%25e3%2582%25a4%25e3%2583%2588%25e3%2581%25ae%25e7%2589%25b9%25e5%25be%25b4\">\u7279\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u306aWeb\u30b5\u30a4\u30c8\u306e\u7279\u5fb4<\/h3>\n\n\n<p>CSRF\u306f\u3001\u30d6\u30e9\u30a6\u30b6\u304cCookie\u3092\u81ea\u52d5\u9001\u4fe1\u3059\u308b\u4ed5\u69d8\u3092\u60aa\u7528\u3059\u308b\u305f\u3081\u3001\u300cCookie\u3092\u4f7f\u3063\u3066\u30ed\u30b0\u30a4\u30f3\u72b6\u614b\uff08\u30bb\u30c3\u30b7\u30e7\u30f3\uff09\u3092\u7ba1\u7406\u3057\u3066\u3044\u308bWeb\u30b5\u30a4\u30c8\u300d\u306f\u5bfe\u8c61\u3068\u306a\u308a\u5f97\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4e2d\u3067\u3082\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u6a5f\u80fd\u3092\u6301\u3064\u30b5\u30a4\u30c8\u306f\u653b\u6483\u8005\u306e\u6a19\u7684\u306b\u306a\u308a\u3084\u3059\u304f\u3001\u88ab\u5bb3\u3082\u6df1\u523b\u5316\u3059\u308b\u305f\u3081\u3001\u91cd\u70b9\u7684\u306a\u5bfe\u7b56\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\uff1cCSRF\u653b\u6483\u306e\u6a19\u7684\u306b\u306a\u308a\u3084\u3059\u3044\u30b5\u30a4\u30c8\u4f8b\uff1e<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cookie\u3067\u30bb\u30c3\u30b7\u30e7\u30f3\u7ba1\u7406\u3092\u884c\u3063\u3066\u3044\u308b\u30b5\u30a4\u30c8<\/strong><\/li>\n\n\n\n<li><strong>\u6c7a\u6e08\u3084\u8cc7\u7523\u79fb\u52d5\u304c\u767a\u751f\u3059\u308b\u30b5\u30a4\u30c8<\/strong><br>\u30fbEC\u30b5\u30a4\u30c8\u3001\u30cd\u30c3\u30c8\u30d0\u30f3\u30ad\u30f3\u30b0\u3001\u30dd\u30a4\u30f3\u30c8\u4ea4\u63db\u30b5\u30a4\u30c8\u306a\u3069<\/li>\n\n\n\n<li><strong>\u91cd\u8981\u306a\u60c5\u5831\u306e\u5909\u66f4\u6a5f\u80fd\u304c\u3042\u308b\u30b5\u30a4\u30c8<\/strong><br>\u30fbSNS\u3001\u4f1a\u54e1\u5236\u30b5\u30a4\u30c8\uff08\u30d1\u30b9\u30ef\u30fc\u30c9\u5909\u66f4\u3001\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u5909\u66f4\u3001\u9000\u4f1a\u51e6\u7406\u306a\u3069\uff09<\/li>\n\n\n\n<li><strong>\u7ba1\u7406\u8005\u6a29\u9650\u3092\u6301\u3064\u30b5\u30a4\u30c8<\/strong><br>\u30fb<strong>CMS\u306e\u7ba1\u7406\u753b\u9762<\/strong>\u3001\u793e\u5185\u30dd\u30fc\u30bf\u30eb\u3001\u30eb\u30fc\u30bf\u30fc\u306e\u8a2d\u5b9a\u753b\u9762\u306a\u3069<br>\u30fb\u203b\u5916\u90e8\u304b\u3089\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u793e\u5185\u30b7\u30b9\u30c6\u30e0\u3067\u3082\u3001\u7ba1\u7406\u8005\u304c\u7f60\u30b5\u30a4\u30c8\u3092\u8e0f\u3080\u3053\u3068\u3067\u653b\u6483\u304c\u6210\u7acb\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u91cd\u8981\u306a\u64cd\u4f5c\u6642\u306b\u300c\u518d\u8a8d\u8a3c\u300d\u304c\u306a\u3044\u30b5\u30a4\u30c8<\/strong><br>\u30fb\u6700\u7d42\u7684\u306a\u51e6\u7406\uff08\u9001\u91d1\u3084\u9000\u4f1a\u30dc\u30bf\u30f3\u62bc\u4e0b\u306a\u3069\uff09\u306e\u76f4\u524d\u306b\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u518d\u5165\u529b\u306a\u3069\u306e\u30c1\u30a7\u30c3\u30af\u304c\u306a\u3044\u5834\u5408\u3001\u653b\u6483\u304c\u7d20\u901a\u308a\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h2 class=\"wp-block-heading has-text-align-center\" id=\"Security\">CSRF\u306e\u6709\u52b9\u306a<strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56<\/strong>\u3068\u306f<\/h2>\n\n\n<p>CSRF\u3092\u9632\u3050\u305f\u3081\u306b\u306f\u3001Web\u30b5\u30a4\u30c8\u3092\u5229\u7528\u3059\u308b\u30e6\u30fc\u30b6\u30fc\u5074\u306e\u6ce8\u610f\u3082\u5fc5\u8981\u3067\u3059\u304c\u3001\u6839\u672c\u7684\u306a\u89e3\u6c7a\u306b\u306fWeb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u5074\u3067\u306e\u5b9f\u88c5\u306b\u3088\u308b\u5bfe\u7b56\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n\n\n<h3 class=\"wp-block-heading has-text-align-center\" id=\"%25e5%2588%25a9%25e7%2594%25a8%25e8%2580%2585%25e5%2581%25b4%25e3%2583%25a6%25e3%2583%25bc%25e3%2582%25b6%25e3%2583%25bc%25e3%2581%258c%25e3%2581%25a7%25e3%2581%258d%25e3%2582%258b%25e5%25af%25be%25e7%25ad%2596\">\u5229\u7528\u8005\u5074\uff08\u30e6\u30fc\u30b6\u30fc\uff09\u304c\u3067\u304d\u308b\u5bfe\u7b56<\/h3>\n\n\n<p>\u30e6\u30fc\u30b6\u30fc\u304c\u3067\u304d\u308b\u81ea\u885b\u7b56\u306b\u306f\u9650\u308a\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u4ee5\u4e0b\u3092\u5fc3\u304c\u3051\u308b\u3053\u3068\u3067\u30ea\u30b9\u30af\u3092\u4f4e\u6e1b\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Web\u30b5\u30fc\u30d3\u30b9\u306e\u4f7f\u7528\u5f8c\u306f\u3001\u5fc5\u305a\u300c\u30ed\u30b0\u30a2\u30a6\u30c8\u300d\u3092\u884c\u3046\u3002<\/li>\n\n\n\n<li>\u602a\u3057\u3044\u30e1\u30fc\u30eb\u306e\u30ea\u30f3\u30af\u3084\u3001\u4e0d\u5be9\u306aWeb\u30b5\u30a4\u30c8\u3092\u958b\u304b\u306a\u3044\u3002<\/li>\n\n\n\n<li>\u30d6\u30e9\u30a6\u30b6\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6a5f\u80fd\u3092\u6700\u65b0\u306e\u72b6\u614b\u306b\u4fdd\u3064\u3002<\/li>\n<\/ul>\n\n\n<h3 class=\"wp-block-heading has-text-align-center\" id=\"web%25e3%2582%25b5%25e3%2582%25a4%25e3%2583%2588%25e5%2588%25b6%25e4%25bd%259c%25e5%2581%25b4%25e9%2596%258b%25e7%2599%25ba%25e8%2580%2585%25e3%2581%258c%25e3%2581%25a7%25e3%2581%258d%25e3%2582%258b%25e4%25b8%25bb%25e3%2581%25aa%25e5%25af%25be%25e7%25ad%2596\">Web\u30b5\u30a4\u30c8\u5236\u4f5c\u5074\uff08\u958b\u767a\u8005\uff09\u304c\u3067\u304d\u308b\u4e3b\u306a\u5bfe\u7b56<\/h3>\n\n\n<p>Web\u30b5\u30a4\u30c8\u958b\u767a\u8005\u304c\u5b9f\u88c5\u3059\u3079\u304d\u5bfe\u7b56\u306e\u57fa\u672c\u306f\u3001\u9001\u3089\u308c\u3066\u304d\u305f\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u300c\u672c\u5f53\u306b\u81ea\u30b5\u30a4\u30c8\u306e\u6b63\u898f\u30da\u30fc\u30b8\u304b\u3089\u9001\u4fe1\u3055\u308c\u305f\u3082\u306e\u304b\u300d\u3092\u53b3\u5bc6\u306b\u691c\u8a3c\u3059\u308b\u4ed5\u7d44\u307f\u3092\u5c0e\u5165\u3059\u308b\u3053\u3068\u3067\u3059\u3002 \u5358\u4e00\u306e\u5bfe\u7b56\u3060\u3051\u3067\u306a\u304f\u3001\u8907\u6570\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u5b89\u5168\u6027\u3092\u9ad8\u3081\u308b\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>CSRF\u30c8\u30fc\u30af\u30f3\uff08\u30ef\u30f3\u30bf\u30a4\u30e0\u30c8\u30fc\u30af\u30f3\uff09\u306e\u5b9f\u88c5<\/strong><br>\u6700\u3082\u4e00\u822c\u7684\u304b\u3064\u5f37\u529b\u306a\u5bfe\u7b56\u3067\u3059\u3002\u30b5\u30fc\u30d0\u30fc\u5074\u3067\u63a8\u6e2c\u56f0\u96e3\u306a\u4e71\u6570\uff08\u30c8\u30fc\u30af\u30f3\uff09\u3092\u751f\u6210\u3057\u3001\u30d5\u30a9\u30fc\u30e0\u306ehidden\u30d5\u30a3\u30fc\u30eb\u30c9\u306a\u3069\u306b\u57cb\u3081\u8fbc\u307f\u307e\u3059\u3002<br>\u30ea\u30af\u30a8\u30b9\u30c8\u9001\u4fe1\u6642\u306b\u3053\u306e\u30c8\u30fc\u30af\u30f3\u3092\u7167\u5408\u3057\u3001\u4e00\u81f4\u3057\u306a\u3044\u5834\u5408\u306f\u51e6\u7406\u3092\u62d2\u5426\u3057\u307e\u3059\u3002\u653b\u6483\u8005\u306f\u3053\u306e\u30c8\u30fc\u30af\u30f3\u3092\u77e5\u308a\u5f97\u306a\u3044\u305f\u3081\u3001\u4e0d\u6b63\u306a\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u906e\u65ad\u3067\u304d\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>SameSite\u5c5e\u6027\u306e\u8a2d\u5b9a<\/strong><br>Cookie\u306b SameSite \u5c5e\u6027\uff08Strict \u307e\u305f\u306f Lax\uff09\u3092\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5\u3067\u3059\u3002<br>\u3053\u308c\u306b\u3088\u308a\u3001\u4ed6\u30b5\u30a4\u30c8\uff08\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\uff09\u304b\u3089\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u6642\u306b\u306fCookie\u304c\u9001\u4fe1\u3055\u308c\u306a\u3044\u3088\u3046\u30d6\u30e9\u30a6\u30b6\u5074\u3067\u5236\u5fa1\u3067\u304d\u307e\u3059\u3002<br>\u30e2\u30c0\u30f3\u30d6\u30e9\u30a6\u30b6\u3067\u306f\u6a19\u6e96\u7684\u306a\u5bfe\u7b56\u3068\u306a\u308a\u3064\u3064\u3042\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30d1\u30b9\u30ef\u30fc\u30c9\u518d\u5165\u529b\uff08\u518d\u8a8d\u8a3c\uff09\u306e\u5b9f\u88c5<\/strong><br>\u9001\u91d1\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u5909\u66f4\u3001\u9000\u4f1a\u51e6\u7406\u306a\u3069\u3001\u7279\u306b\u91cd\u8981\u306a\u64cd\u4f5c\u306e\u76f4\u524d\u306b\u3001\u518d\u5ea6\u30d1\u30b9\u30ef\u30fc\u30c9\u5165\u529b\u3092\u6c42\u3081\u308b\u4ed5\u69d8\u306b\u3057\u307e\u3059\u3002\u3082\u3057CSRF\u653b\u6483\u3092\u53d7\u3051\u3066\u3082\u3001\u653b\u6483\u8005\u306f\u30e6\u30fc\u30b6\u30fc\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u77e5\u3089\u306a\u3044\u305f\u3081\u3001\u6700\u7d42\u7684\u306a\u51e6\u7406\u306e\u5b9f\u884c\u3092\u7269\u7406\u7684\u306b\u963b\u6b62\u3067\u304d\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>Referer\uff08\u30ea\u30d5\u30a1\u30e9\uff09\u306e\u30c1\u30a7\u30c3\u30af<\/strong><br>HTTP\u30d8\u30c3\u30c0\u306eReferer\uff08\u30ea\u30f3\u30af\u5143\u60c5\u5831\uff09\u3092\u78ba\u8a8d\u3057\u3001\u8a31\u53ef\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u4ee5\u5916\u304b\u3089\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u62d2\u5426\u3059\u308b\u65b9\u6cd5\u3067\u3059\u3002\u305f\u3060\u3057\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30bd\u30d5\u30c8\u306e\u5f71\u97ff\u3067Referer\u304c\u9001\u4fe1\u3055\u308c\u306a\u3044\u5834\u5408\u3084\u3001\u507d\u88c5\u3055\u308c\u308b\u30ea\u30b9\u30af\u3082\u3042\u308b\u305f\u3081\u3001\u3042\u304f\u307e\u3067\u88dc\u52a9\u7684\u306a\u5bfe\u7b56\u3068\u3057\u3066\u7528\u3044\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u8106\u5f31\u6027\u8a3a\u65ad\u306e\u5b9f\u65bd<\/strong><br>\u4e0a\u8a18\u306e\u3088\u3046\u306a\u5bfe\u7b56\u3092\u5b9f\u88c5\u3057\u3066\u3082\u3001\u8a2d\u5b9a\u30df\u30b9\u3084\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u4ed5\u69d8\u5909\u66f4\u306b\u3088\u308a\u3001\u610f\u56f3\u305b\u305a\u8106\u5f31\u6027\u304c\u6b8b\u3063\u3066\u3057\u307e\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<br>\u5b9a\u671f\u7684\u306b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8a3a\u65ad\u3092\u5b9f\u65bd\u3057\u3001\u7b2c\u4e09\u8005\u306e\u8996\u70b9\u3067\u300c\u6b63\u3057\u304f\u5bfe\u7b56\u3067\u304d\u3066\u3044\u308b\u304b\u300d\u3092\u691c\u8a3c\u3059\u308b\u3053\u3068\u304c\u3001\u4e8b\u6545\u3092\u9632\u3050\u6700\u5f8c\u306e\u7826\u3068\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n<h3 class=\"wp-block-heading has-text-align-center\" id=\"csrf%25e8%2584%2586%25e5%25bc%25b1%25e6%2580%25a7%25e3%2581%258c%25e6%25ae%258b%25e3%2582%258b%25e5%25af%25be%25e7%25ad%2596%25e3%2581%25ae%25e8%2590%25bd%25e3%2581%25a8%25e3%2581%2597%25e7%25a9%25b4\">CSRF\u8106\u5f31\u6027\u304c\u6b8b\u308b\u300c\u5bfe\u7b56\u306e\u843d\u3068\u3057\u7a74\u300d<\/h3>\n\n\n<p>\u73fe\u4ee3\u306eWeb\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\uff08Laravel, Rails, Django\u306a\u3069\uff09\u306b\u306f\u3001\u6a19\u6e96\u3067CSRF\u5bfe\u7b56\u6a5f\u80fd\u304c\u5099\u308f\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u591a\u304f\u306a\u3063\u3066\u3044\u307e\u3059\u3002 \u3057\u304b\u3057\u3001\u5b9f\u88c5\u6642\u306e\u8a2d\u5b9a\u30df\u30b9\u3084\u72ec\u81ea\u306e\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u306b\u3088\u308a\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b1\u30fc\u30b9\u3067\u8106\u5f31\u6027\u304c\u6b8b\u3063\u3066\u3057\u307e\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u8a2d\u5b9a\u306e\u7121\u52b9\u5316\u3084\u6f0f\u308c<\/strong><br>\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u30a2\u30c3\u30d7\u6642\u306b\u8a2d\u5b9a\u304c\u7121\u52b9\u306b\u306a\u3063\u3066\u3044\u305f\u308a\u3001API\u5b9f\u88c5\u6642\u306bCSRF\u4fdd\u8b77\u3092\u610f\u56f3\u7684\u306b\u300c\u9664\u5916\u8a2d\u5b9a\u300d\u306b\u3057\u3066\u305d\u306e\u307e\u307e\u653e\u7f6e\u3055\u308c\u305f\u308a\u3059\u308b\u30b1\u30fc\u30b9\u3002<\/li>\n\n\n\n<li><strong>\u91cd\u8981\u306a\u51e6\u7406\u3067\u306e\u691c\u8a3c\u6f0f\u308c<\/strong><br>\u9000\u4f1a\u51e6\u7406\u3084\u8a2d\u5b9a\u5909\u66f4\u306a\u3069\u3092\u8aa4\u3063\u3066\u300cGET\u30ea\u30af\u30a8\u30b9\u30c8\u300d\u3067\u5b9f\u88c5\u3057\u3066\u3057\u307e\u3044\u3001\u30c8\u30fc\u30af\u30f3\u691c\u8a3c\u306e\u5bfe\u8c61\u304b\u3089\u6f0f\u308c\u3066\u3057\u307e\u3046\u30b1\u30fc\u30b9\u3002<\/li>\n\n\n\n<li><strong>\u30c8\u30fc\u30af\u30f3\u306e\u63a8\u6e2c\u53ef\u80fd\u6027\uff08\u30e9\u30f3\u30c0\u30e0\u6027\u306e\u4e0d\u8db3\uff09<\/strong><br>\u30c8\u30fc\u30af\u30f3\u306b\u4f7f\u7528\u3059\u308b\u6587\u5b57\u5217\u306e\u30e9\u30f3\u30c0\u30e0\u6027\u304c\u4f4e\u304f\u3001\u653b\u6483\u8005\u306b\u6b21\u306e\u30c8\u30fc\u30af\u30f3\u3092\u4e88\u6e2c\u3055\u308c\u3066\u7a81\u7834\u3055\u308c\u3066\u3057\u307e\u3046\u30b1\u30fc\u30b9\u3002<\/li>\n\n\n\n<li><strong>Referer\uff08\u30ea\u30d5\u30a1\u30e9\uff09\u691c\u8a3c\u306e\u307f\u306b\u4f9d\u5b58<\/strong><br>\u30ea\u30af\u30a8\u30b9\u30c8\u5143\u306eReferer\u30d8\u30c3\u30c0\u3092\u78ba\u8a8d\u3059\u308b\u3060\u3051\u306e\u5bfe\u7b56\u306f\u3001\u30d6\u30e9\u30a6\u30b6\u306e\u4ed5\u69d8\u3084\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30bd\u30d5\u30c8\u306e\u5f71\u97ff\u3001\u4ed6\u306e\u8106\u5f31\u6027\u306b\u3088\u3063\u3066\u56de\u907f\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u3001\u5358\u72ec\u3067\u306f\u4e0d\u5341\u5206\u3067\u3059\u3002<\/li>\n\n\n\n<li><strong>\u691c\u8a3c\u30ed\u30b8\u30c3\u30af\u306e\u4e0d\u5099<\/strong><br>\u5b9f\u88c5\u30df\u30b9\u306b\u3088\u308a\u3001\u30c8\u30fc\u30af\u30f3\u304c\u7a7a\u306e\u5024\u3067\u3082\u30c1\u30a7\u30c3\u30af\u3092\u901a\u904e\u3057\u3066\u3057\u307e\u3046\u30b1\u30fc\u30b9\u3002<br>\u300c\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3092\u4f7f\u3063\u3066\u3044\u308b\u304b\u3089\u5b89\u5fc3\u300d\u3068\u904e\u4fe1\u305b\u305a\u3001\u6b63\u3057\u304f\u6a5f\u80fd\u3057\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/li>\n<\/ul>\n\n\n<h3 class=\"wp-block-heading has-text-align-center\" id=\"%25e8%2584%2586%25e5%25bc%25b1%25e6%2580%25a7%25e8%25a8%25ba%25e6%2596%25ad%25e3%2581%25ae%25e9%2587%258d%25e8%25a6%2581%25e6%2580%25a7\">\u8106\u5f31\u6027\u8a3a\u65ad\u306e\u91cd\u8981\u6027<\/h3>\n\n\n<p>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3068\u3057\u3066WAF\uff08Web Application Firewall\uff09\u3092\u5c0e\u5165\u3057\u3066\u3044\u308b\u4f01\u696d\u3082\u591a\u3044\u3067\u3059\u304c\u3001CSRF\u5bfe\u7b56\u306b\u304a\u3044\u3066\u306f\u305d\u308c\u3060\u3051\u3067\u306f\u4e0d\u5341\u5206\u306a\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<br>CSRF\u306f\u3001\u5f62\u5f0f\u4e0a\u306f\u300c\u6b63\u898f\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u300d\u306b\u898b\u305b\u304b\u3051\u3066\u653b\u6483\u3092\u884c\u3046\u305f\u3081\u3001\u30b7\u30b0\u30cd\u30c1\u30e3\uff08\u653b\u6483\u30d1\u30bf\u30fc\u30f3\uff09\u691c\u77e5\u3092\u4e3b\u3068\u3059\u308bWAF\u3067\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u56fa\u6709\u306e\u4ed5\u69d8\u306e\u4e0d\u5099\uff08\u30ed\u30b8\u30c3\u30af\u306e\u7a74\uff09\u3092\u5b8c\u5168\u306b\u9632\u304e\u304d\u308c\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u25bcWAF\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u306f\u3053\u3061\u3089<br><a href=\"https:\/\/lp.cscloud.co.jp\/va\/knowledge\/csrf\/ksk_waf_features\/\" target=\"_blank\" rel=\"noopener\" title=\"\">\u3010\u60c5\u30b7\u30b9\u62c5\u5f53\u8005\u5fc5\u898b\u3011WAF\u306e\u57fa\u672c\u6a5f\u80fd\u3068\u9632\u3052\u308b\u653b\u6483\u3092\u5fb9\u5e95\u89e3\u8aac\uff01<\/a><\/p>\n\n\n\n<p>\u6839\u672c\u7684\u306a\u5bfe\u7b56\u306f\u3001\u524d\u8ff0\u3057\u305f\u30c8\u30fc\u30af\u30f3\u3084SameSite\u5c5e\u6027\u306a\u3069\u306e\u300c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5074\u306e\u5b9f\u88c5\u300d\u306b\u306a\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u7279\u306b\u5927\u898f\u6a21\u306aWeb\u30b5\u30a4\u30c8\u307b\u3069\u6a5f\u80fd\u304c\u8907\u96d1\u306b\u306a\u308a\u3001\u3059\u3079\u3066\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u7d4c\u8def\u3067\u30c8\u30fc\u30af\u30f3\u691c\u8a3c\u304c\u6b63\u3057\u304f\u884c\u308f\u308c\u3066\u3044\u308b\u304b\u3092\u3001\u958b\u767a\u30c1\u30fc\u30e0\u3060\u3051\u3067\u5b8c\u74a7\u306b\u30c6\u30b9\u30c8\u3057\u7d9a\u3051\u308b\u306e\u306f\u56f0\u96e3\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u629c\u3051\u6f0f\u308c\u304c\u306a\u3044\u304b\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f\u3001\u5c02\u9580\u5bb6\u306b\u3088\u308b\u300c\u8106\u5f31\u6027\u8a3a\u65ad\u300d\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u304c\u975e\u5e38\u306b\u6709\u52b9\u3067\u3059\u3002\u30c4\u30fc\u30eb\u306b\u3088\u308b\u7db2\u7f85\u7684\u306a\u30b9\u30ad\u30e3\u30f3\u306b\u52a0\u3048\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a8\u30f3\u30b8\u30cb\u30a2\u306b\u3088\u308b\u624b\u52d5\u8a3a\u65ad\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30c4\u30fc\u30eb\u3060\u3051\u3067\u306f\u898b\u629c\u3051\u306a\u3044\u8ad6\u7406\u7684\u306a\u6b20\u9665\u3084\u8a2d\u5b9a\u30df\u30b9\u3092\u767a\u898b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u7b2c\u4e09\u8005\u306e\u8996\u70b9\u3092\u53d6\u308a\u5165\u308c\u308b\u3053\u3068\u306f\u3001Web\u30b5\u30a4\u30c8\u306e\u5b89\u5168\u6027\u3092\u78ba\u5b9f\u306b\u62c5\u4fdd\u3059\u308b\u6700\u3082\u6709\u52b9\u306a\u624b\u6bb5\u3068\u3044\u3048\u307e\u3059\u3002<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h2 class=\"wp-block-heading\" 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alt=\"\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30af\u30e9\u30a6\u30c9\u3000\u8106\u5f31\u6027\u8a3a\u65ad\u30b5\u30fc\u30d3\u30b9\u3000\u3044\u307e\u3059\u3050\u7121\u6599\u3067\u8cc7\u6599\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\" class=\"wp-image-156\" srcset=\"https:\/\/www.cscloud.co.jp\/vulnerability-audit\/wp\/wp-content\/uploads\/2024\/10\/va_promo_banner-1024x282.png 1024w, https:\/\/www.cscloud.co.jp\/vulnerability-audit\/wp\/wp-content\/uploads\/2024\/10\/va_promo_banner-300x83.png 300w, https:\/\/www.cscloud.co.jp\/vulnerability-audit\/wp\/wp-content\/uploads\/2024\/10\/va_promo_banner-768x211.png 768w, https:\/\/www.cscloud.co.jp\/vulnerability-audit\/wp\/wp-content\/uploads\/2024\/10\/va_promo_banner-1536x422.png 1536w, https:\/\/www.cscloud.co.jp\/vulnerability-audit\/wp\/wp-content\/uploads\/2024\/10\/va_promo_banner.png 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" 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