{"id":3223,"date":"2021-06-10T13:15:44","date_gmt":"2021-06-10T04:15:44","guid":{"rendered":"https:\/\/github.blog\/jp\/?p=3223"},"modified":"2021-06-10T13:15:44","modified_gmt":"2021-06-10T04:15:44","slug":"how-we-threat-model","status":"publish","type":"post","link":"https:\/\/github.blog\/jp\/2021-06-10-how-we-threat-model\/","title":{"rendered":"\u8105\u5a01\u3092\u30e2\u30c7\u30eb\u5316\u3059\u308b"},"content":{"rendered":"<p>GitHub\u3067\u306f\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3092\u3069\u3046\u30bb\u30ad\u30e5\u30a2\u306b\u3067\u304d\u308b\u304b\u306b\u3064\u3044\u3066\u6642\u9593\u3092\u304b\u3051\u3066\u8003\u3048\u3001\u958b\u767a\u3059\u308b\u3053\u3068\u306b\u53d6\u308a\u7d44\u3093\u3067\u3044\u307e\u3059\u3002\u305d\u306e\u4e3b\u305f\u308b\u5074\u9762\u3068\u3057\u3066\u3001\u8105\u5a01\u306e\u30e2\u30c7\u30eb\u5316\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002\u3053\u308c\u306b\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c1\u30fc\u30e0\u3068\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u30c1\u30fc\u30e0\u304c\u9023\u643a\u3057\u3066\u30b7\u30b9\u30c6\u30e0\u306b\u3064\u3044\u3066\u8a71\u3057\u5408\u3044\u3001\u6700\u7d42\u7684\u306b\u306f\u30b7\u30b9\u30c6\u30e0\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u3055\u3089\u306b\u9ad8\u3081\u308b\u30a2\u30af\u30b7\u30e7\u30f3\u30a2\u30a4\u30c6\u30e0\u3092\u751f\u6210\u3059\u308b\u3053\u3068\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u8105\u5a01\u306e\u30e2\u30c7\u30eb\u5316\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c1\u30fc\u30e0\u3068\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u30c1\u30fc\u30e0\u3068\u306e\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5186\u6ed1\u5316\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ec\u30d3\u30e5\u30fc\u30d7\u30ed\u30bb\u30b9\u3092\u80fd\u52d5\u7684\u306b\u884c\u3046\u3088\u3046\u306b\u3059\u308b\u3001\u4fe1\u983c\u6027\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u9ad8\u3044\u30b7\u30b9\u30c6\u30e0\u8a2d\u8a08\u306e\u5b9f\u73fe\u306b\u5f79\u7acb\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2 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href=\"#%e8%84%85%e5%a8%81%e3%81%ae%e3%83%a2%e3%83%87%e3%83%ab%e5%8c%96%e3%82%92%e5%ae%9f%e8%a1%8c%e3%81%99%e3%82%8b%e3%82%bf%e3%82%a4%e3%83%9f%e3%83%b3%e3%82%b0%e3%81%ae%e6%b1%ba%e5%ae%9a\" class=\"heading-link\" aria-label=\"\u8105\u5a01\u306e\u30e2\u30c7\u30eb\u5316\u3092\u5b9f\u884c\u3059\u308b\u30bf\u30a4\u30df\u30f3\u30b0\u306e\u6c7a\u5b9a\" data-anchorjs-icon=\"#\" style=\"padding-left: 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href=\"https:\/\/www.microsoft.com\/en-us\/securityengineering\/sdl\/threatmodeling\">Microsoft\u306eThreat Modeling\u30c4\u30fc\u30eb<\/a>\u304b<a href=\"https:\/\/owasp.org\/www-project-threat-dragon\/\">OWASP\u306eThreat Dragon<\/a>(\u3044\u305a\u308c\u3082\u7121\u6599)\u3067\u8105\u5a01\u30e2\u30c7\u30eb\u3092\u958b\u767a\u3059\u308b\u3088\u3046\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u30c1\u30fc\u30e0\u306b\u8981\u8acb\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30c1\u30fc\u30e0\u306f\u8105\u5a01\u30e2\u30c7\u30eb\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u60c5\u5831\u3092\u660e\u78ba\u306b\u793a\u305b\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001API\u3001\u4fe1\u983c\u5883\u754c\u3001\u4f9d\u5b58\u95a2\u4fc2\u3001\u30c7\u30fc\u30bf\u30b9\u30c8\u30a2\u3001\u8a8d\u8a3c\u6a5f\u69cb\u306a\u3069\u304c\u3053\u308c\u306b\u542b\u307e\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30d5\u30a1\u30a4\u30eb\u306f\u3001\u30c1\u30fc\u30e0\u9593\u3067\u3042\u308b\u7a0b\u5ea6\u306e\u6574\u5408\u6027\u3092\u78ba\u4fdd\u3059\u308b\u4ee5\u5916\u306b\u3082\u3001\u3055\u307e\u3056\u307e\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u8981\u4ef6\u306b\u5bfe\u5fdc\u3057\u306a\u304f\u3066\u306f\u306a\u3089\u306a\u3044\u5834\u5408\u306b\u306f\u3001\u76e3\u67fb\u54e1\u3068\u5171\u6709\u3067\u304d\u308b\u91cd\u8981\u306a\u62c5\u4fdd\u3068\u3057\u3066\u306e\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/p>\n<h3 id=\"%e8%84%85%e5%a8%81%e3%83%a2%e3%83%87%e3%83%ab%e3%81%ae%e3%83%ac%e3%83%93%e3%83%a5%e3%83%bc\">\u8105\u5a01\u30e2\u30c7\u30eb\u306e\u30ec\u30d3\u30e5\u30fc<a href=\"#%e8%84%85%e5%a8%81%e3%83%a2%e3%83%87%e3%83%ab%e3%81%ae%e3%83%ac%e3%83%93%e3%83%a5%e3%83%bc\" class=\"heading-link\" aria-label=\"\u8105\u5a01\u30e2\u30c7\u30eb\u306e\u30ec\u30d3\u30e5\u30fc\" data-anchorjs-icon=\"#\" style=\"padding-left: 0.375em;\"><\/a><\/h3>\n<p>\u8105\u5a01\u30e2\u30c7\u30eb\u3092\u30ec\u30d3\u30e5\u30fc\u3059\u308b\u6bb5\u968e\u306b\u306a\u308b\u3068\u3001\u4e00\u822c\u7684\u306b\u30012\u90e8\u306b\u5206\u3051\u305f1\u6642\u9593\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u5404\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u5192\u982d5\uff5e10\u5206\u9593\u306f\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u30c1\u30fc\u30e0\u304c\u30ec\u30d3\u30e5\u30fc\u5bfe\u8c61\u306e\u30b7\u30b9\u30c6\u30e0\u8a2d\u8a08\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u8cbb\u3084\u3055\u308c\u307e\u3059\u3002\u3053\u3053\u3067\u3001\u5168\u54e1\u304c\u7406\u89e3\u3092\u5171\u6709\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3001\u4ee5\u524d\u306b\u4f5c\u6210\u3057\u305f\u8105\u5a01\u30e2\u30c7\u30eb\u306b\u304a\u3051\u308b\u3042\u3044\u307e\u3044\u306a\u70b9(\u4f7f\u7528\u3055\u308c\u308b\u6280\u8853\u3084\u8a2d\u8a08\u4e0a\u306e\u7656\u306a\u3069)\u3092\u660e\u78ba\u306b\u3057\u307e\u3059\u3002\u00a0 \u5168\u54e1\u306e\u8db3\u4e26\u307f\u304c\u305d\u308d\u3063\u305f\u3068\u3053\u308d\u3067\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u30c7\u30a3\u30b9\u30ab\u30c3\u30b7\u30e7\u30f3\u306b\u5165\u308a\u307e\u3059\u3002<\/p>\n<p>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c7\u30a3\u30b9\u30ab\u30c3\u30b7\u30e7\u30f3\u306e\u3053\u306e\u6bb5\u968e\u3067\u306f\u3001\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3092\u4f7f\u7528\u3057\u3066\u3001\u3055\u307e\u3056\u307e\u306a\u8106\u5f31\u6027\u30af\u30e9\u30b9\u306b\u4f53\u7cfb\u7684\u306b\u5bfe\u51e6\u3059\u308b\u3053\u3068\u304c\u6709\u76ca\u3067\u3059\u3002\u79c1\u305f\u3061\u304c\u3088\u304f\u4f7f\u3063\u3066\u3044\u308b\u624b\u6cd5\u3068\u3057\u3066\u3001Microsoft\u306e<a href=\"https:\/\/en.wikipedia.org\/wiki\/STRIDE_(security)\">STRIDE<\/a>\u30e2\u30c7\u30eb\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u3053\u308c\u306f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u6f5c\u3080\u4e00\u822c\u7684\u306a\u653b\u6483\u30d9\u30af\u30c8\u30eb\u306e\u982d\u6587\u5b57\u3092\u3068\u3063\u305f\u3082\u306e\u3067\u3001Spoofing (\u306a\u308a\u3059\u307e\u3057)\u3001Tampering (\u6539\u3056\u3093)\u3001Repudiation (\u5426\u8a8d)\u3001Information Disclosure (\u60c5\u5831\u6f0f\u6d29)\u3001Denial of Service (\u30b5\u30fc\u30d3\u30b9\u62d2\u5426)\u3001Escalation of Privilege (\u6a29\u9650\u306e\u6607\u683c)\u3092\u8868\u3057\u307e\u3059\u3002\u5168\u4f53\u7684\u306a\u30b7\u30b9\u30c6\u30e0\u3092\u898b\u306a\u304c\u3089\u3053\u308c\u3089\u306e\u30af\u30e9\u30b9\u3092\u305f\u3069\u3063\u3066\u3044\u304f\u3068\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c1\u30fc\u30e0\u306f\u5206\u6790\u5bfe\u8c61\u306e\u30b7\u30b9\u30c6\u30e0\u3092\u5305\u62ec\u7684\u306b\u6349\u3048\u3001\u6700\u3082\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u306e\u9ad8\u3044\u8105\u5a01\u3092\u78ba\u5b9f\u306b\u7db2\u7f85\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u305d\u3057\u3066\u6b8b\u308a\u306e\u6642\u9593\u3067\u3001STRIDE\u3092\u9806\u756a\u306b\u53d6\u308a\u4e0a\u3052\u3066\u4f1a\u8a71\u3092\u767a\u5c55\u3055\u305b\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u305d\u306e\u4ed6\u306e\u90e8\u5206\u3092\u660e\u3089\u304b\u306b\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u6f5c\u5728\u7684\u306a\u8106\u5f31\u6027\u307e\u305f\u306f\u8a2d\u8a08\u4e0a\u306e\u6b20\u9665\u304c\u898b\u3064\u304b\u308b\u3068\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c1\u30fc\u30e0\u304c\u305d\u306e\u8106\u5f31\u6027\u3084\u6b20\u9665\u3068\u3068\u3082\u306b\u3001\u8003\u3048\u3046\u308b\u4fee\u6b63\u7b56\u3092\u30e1\u30e2\u3057\u307e\u3059\u3002\u3053\u306e\u30e1\u30e2\u306f\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u7d42\u4e86\u5f8c\u306b\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u30c1\u30fc\u30e0\u304c\u6f5c\u5728\u7684\u306a\u5909\u66f4\u70b9\u3092\u30ea\u30b9\u30c8\u30a2\u30c3\u30d7\u3067\u304d\u308b\u3088\u3046\u306b\u4f5c\u6210\u3057\u307e\u3059\u3002\u8105\u5a01\u306e\u30e2\u30c7\u30eb\u5316\u304cGitHub\u3067\u5e83\u304f\u53d6\u308a\u5165\u308c\u3089\u308c\u308b\u306b\u3064\u308c\u3001\u30c1\u30fc\u30e0\u306f\u30b7\u30b9\u30c6\u30e0\u306e\u958b\u767a\u306b\u53d6\u308a\u7d44\u307f\u306a\u304c\u3089\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c1\u30fc\u30e0\u3068\u9023\u643a\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u3053\u308c\u306b\u3088\u3063\u3066\u3001\u6f5c\u5728\u7684\u306a\u554f\u984c\u3092\u3042\u3089\u304b\u3058\u3081\u628a\u63e1\u3057\u3001\u958b\u767a\u4f5c\u696d\u306b\u53d6\u308a\u639b\u304b\u308b\u524d\u306b\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u4e3b\u306a\u5909\u66f4\u306b\u5bfe\u51e6\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u4e00\u65b9\u3067\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c1\u30fc\u30e0\u306e\u5834\u5408\u306f\u3001\u30bb\u30ad\u30e5\u30a2\u306a\u8a2d\u8a08\u539f\u5247\u3092\u901a\u3058\u3066\u3001\u3088\u308a\u512a\u308c\u305f\u9632\u5fa1\u3092\u5fb9\u5e95\u7684\u306b\u914d\u5099\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u7d42\u4e86\u6642\u523b\u304c\u8fd1\u304f\u306a\u3063\u305f\u3089\u3001\u4e3b\u306a\u6210\u679c\u3068\u3001\u30c1\u30fc\u30e0\u304c\u884c\u3046\u3079\u304d\u6539\u5584\u70b9\u3092\u898b\u76f4\u3057\u3001\u305d\u308c\u3089\u306b\u3064\u3044\u3066\u8ffd\u8de1\u30a2\u30a4\u30c6\u30e0\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u53c2\u52a0\u8005\u306b\u306f\u30b5\u30de\u30ea\u30fc\u304c\u914d\u5e03\u3055\u308c\u3001\u30a2\u30af\u30b7\u30e7\u30f3\u30a2\u30a4\u30c6\u30e0\u306b\u3055\u3089\u306b\u8089\u4ed8\u3051\u3067\u304d\u308b\u3088\u3046\u30d5\u30a9\u30ed\u30fc\u30a2\u30c3\u30d7\u306e\u8cea\u554f\u3092\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2 id=\"%e8%84%85%e5%a8%81%e3%81%ae%e3%83%a2%e3%83%87%e3%83%ab%e5%8c%96%e3%81%8b%e3%82%89%e5%ad%a6%e3%82%93%e3%81%a0%e3%81%93%e3%81%a8\">\u8105\u5a01\u306e\u30e2\u30c7\u30eb\u5316\u304b\u3089\u5b66\u3093\u3060\u3053\u3068<a href=\"#%e8%84%85%e5%a8%81%e3%81%ae%e3%83%a2%e3%83%87%e3%83%ab%e5%8c%96%e3%81%8b%e3%82%89%e5%ad%a6%e3%82%93%e3%81%a0%e3%81%93%e3%81%a8\" class=\"heading-link\" aria-label=\"\u8105\u5a01\u306e\u30e2\u30c7\u30eb\u5316\u304b\u3089\u5b66\u3093\u3060\u3053\u3068\" data-anchorjs-icon=\"#\" style=\"padding-left: 0.375em;\"><\/a><\/h2>\n<p>\u524d\u8ff0\u306e\u3068\u304a\u308a\u3001\u7d44\u7e54\u306e<a href=\"https:\/\/github.com\/learn\/security\/#ghasebook\">\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u610f\u8b58\u3057\u305f\u6587\u5316<\/a>\u3092\u4fc3\u9032\u3059\u308b\u8105\u5a01\u306e\u30e2\u30c7\u30eb\u5316\u306b\u306f\u3001\u3044\u304f\u3064\u304b\u306e\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308a\u307e\u3059\u3002\u79c1\u305f\u3061\u306e\u5834\u5408\u306f\u3001\u4e3b\u306b\u4ee5\u4e0b\u306e3\u3064\u306e\u30e1\u30ea\u30c3\u30c8\u3092\u898b\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n<h3 id=\"%e3%82%b7%e3%82%b9%e3%83%86%e3%83%a0%e5%85%a8%e4%bd%93%e3%81%ae%e3%82%bb%e3%82%ad%e3%83%a5%e3%83%aa%e3%83%86%e3%82%a3%e5%90%91%e4%b8%8a\">\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5411\u4e0a<a href=\"#%e3%82%b7%e3%82%b9%e3%83%86%e3%83%a0%e5%85%a8%e4%bd%93%e3%81%ae%e3%82%bb%e3%82%ad%e3%83%a5%e3%83%aa%e3%83%86%e3%82%a3%e5%90%91%e4%b8%8a\" class=\"heading-link\" aria-label=\"\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5411\u4e0a\" data-anchorjs-icon=\"#\" style=\"padding-left: 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href=\"https:\/\/twitter.com\/GitHub\">Twitter<\/a>\u3067\u30cf\u30c3\u30b7\u30e5\u30bf\u30b0\u300c#GitHubThreatModeling\u300d\u3092\u4ed8\u3051\u3066\u30c4\u30a4\u30fc\u30c8\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>GitHub\u3067\u306e\u8105\u5a01\u306e\u30e2\u30c7\u30eb\u5316\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306e\u4e3b\u306a\u53d6\u308a\u7d44\u307f\u306e\u6982\u8981\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<p>&#8211; \u8105\u5a01\u306e\u30e2\u30c7\u30eb\u5316\u30d7\u30ed\u30bb\u30b9\u3092\u65e2\u5b58\u306e\u958b\u767a\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u30d7\u30ed\u30bb\u30b9\u306b\u7d71\u5408\u3057\u3001\u53ef\u80fd\u3067\u3042\u308c\u3070\u81ea\u52d5\u5316\u3059\u308b<br \/>\n&#8211; \u5168\u54e1\u304c\u6e96\u5099\u3092\u6574\u3048\u305f\u72b6\u614b\u3067\u81e8\u3080<br \/>\n&#8211; 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