{"id":126456,"date":"2023-01-10T00:33:17","date_gmt":"2023-01-10T08:33:17","guid":{"rendered":"https:\/\/unit42.paloaltonetworks.com\/?p=126456"},"modified":"2024-07-30T19:37:49","modified_gmt":"2024-07-31T02:37:49","slug":"jsonwebtoken-vulnerability-cve-2022-23529","status":"publish","type":"post","link":"https:\/\/unit42.paloaltonetworks.com\/ja\/jsonwebtoken-vulnerability-cve-2022-23529\/","title":{"rendered":"[2023-01-31 12:00 JST \u66f4\u65b0] JWT\u306e\u30b7\u30fc\u30af\u30ec\u30c3\u30c8\u30dd\u30a4\u30ba\u30cb\u30f3\u30b0\u306b\u95a2\u3059\u308b\u554f\u984c"},"content":{"rendered":"

\u66f4\u65b0<\/h2>\n

2019\u5e741\u670830\u65e5 PST<\/b><\/p>\n

\u672c\u8106\u5f31\u6027\u306e\u60aa\u7528\u30b7\u30ca\u30ea\u30aa\u306e\u524d\u63d0\u6761\u4ef6\u306b\u95a2\u3059\u308b\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u304b\u3089\u306e\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u3092\u53d7\u3051\u3001\u79c1\u305f\u3061\u306fAuth0\u3068\u5354\u529b\u3057\u3066CVE-2022-23529\u3092\u64a4\u56de\u3059\u308b\u3053\u3068\u3092\u6c7a\u5b9a\u3057\u307e\u3057\u305f\u3002\u00a0<\/span><\/p>\n

\u672c\u7a3f\u3067\u89e3\u8aac\u3057\u305f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u554f\u984c\u306fJsonWebToken\u30e9\u30a4\u30d6\u30e9\u30ea\u304c\u5b89\u5168\u3067\u306a\u3044\u65b9\u6cd5\u3067\u4f7f\u7528\u3055\u308c\u305f\u5834\u5408\u306b\u306f\u4f9d\u7136\u3068\u3057\u3066\u61f8\u5ff5\u3055\u308c\u308b\u3082\u306e\u3067\u3059\u3002\u305d\u306e\u30b7\u30ca\u30ea\u30aa\u3067\u306f\u3001\u3059\u3079\u3066\u306e\u524d\u63d0\u6761\u4ef6\u3092\u6e80\u305f\u305b\u3070\u3053\u306e\u554f\u984c\u3092\u60aa\u7528\u3067\u304d\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u79c1\u305f\u3061\u306f\u3001\u305d\u306e\u5834\u5408\u306e\u30ea\u30b9\u30af\u306e\u5927\u5143\u306f\u30e9\u30a4\u30d6\u30e9\u30ea\u5074\u3067\u306a\u304f\u547c\u3073\u51fa\u3057\u5074\u306e\u30b3\u30fc\u30c9\u306b\u3042\u308b\u3053\u3068\u306b\u540c\u610f\u3057\u307e\u3059\u3002<\/span><\/p>\n

\u3053\u306e\u554f\u984c\u306b\u5bfe\u51e6\u3059\u308b\u305f\u3081JsonWebToken\u306e\u30b3\u30fc\u30c9\u306b\u306f\u91cd\u8981\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c1\u30a7\u30c3\u30af\u304c\u8ffd\u52a0\u3055\u308c\u307e\u3057\u305f\u3002\u00a0<\/span><\/p>\n

jsonwebtoken 8.5.1\u4ee5\u524d\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u304a\u4f7f\u3044\u306e\u5834\u5408\u306f\u6700\u65b0\u7248\u306e9.0.0\u306b\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002\u6700\u65b0\u7248\u3067\u306f\u540c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u554f\u984c\u3092\u542b\u3080\u554f\u984c\u3092\u4fee\u6b63\u6e08\u307f\u3067\u3001\u3088\u308a\u5b89\u5168\u306a\u30b3\u30fc\u30c9\u3092\u63d0\u4f9b\u3057\u3066\u672c\u30d6\u30ed\u30b0\u3067\u7d39\u4ecb\u3057\u305f\u30d1\u30c3\u30b1\u30fc\u30b8\u306e\u60aa\u7528\u3092\u9632\u304e\u307e\u3059\u3002\u00a0<\/span><\/p>\n

\u672c\u4ef6\u306b\u53d6\u308a\u7d44\u3093\u3067\u3044\u305f\u3060\u3044\u305fAuth0\u3068\u95a2\u5fc3\u3068\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u3092\u5bc4\u305b\u3066\u3044\u305f\u3060\u3044\u305f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306e\u7686\u3055\u307e\u306b\u611f\u8b1d\u3092\u7533\u3057\u4e0a\u3052\u307e\u3059\u3002\u307e\u305fGitHub\u304b\u3089\u306e\u3054\u5354\u529b\u306b\u3082\u611f\u8b1d\u3057\u307e\u3059\u3002<\/span>\u672c\u4ef6\u306e\u66f4\u65b0\u306fAuth0 GitHub\u3067\u304a\u8aad\u307f\u3044\u305f\u3060\u3051\u307e\u3059\u3002<\/span><\/a>.<\/span><\/p>\n

2023\u5e741\u670812\u65e5 PST<\/strong><\/p>\n

\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u304b\u3089\u306e\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u3092\u53d7\u3051\u3001\u79c1\u305f\u3061\u306f\u6f5c\u5728\u7684\u306a\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306b\u95a2\u3059\u308b\u8a73\u7d30\u3092\u3082\u3046\u5c11\u3057\u660e\u3089\u304b\u306b\u3057\u3066\u304a\u304f\u3053\u3068\u306b\u3044\u305f\u3057\u307e\u3057\u305f\u3002<\/span>\u521d\u7a3f\u306b\u306f\u300c\u653b\u6483\u8005\u306f\u30b7\u30fc\u30af\u30ec\u30c3\u30c8\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u3092\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u300d\u3068\u3044\u3046\u8a18\u8ff0\u304c\u3042\u308a\u307e\u3057\u305f\u304c\u3001\u3053\u306e\u3053\u3068\u3092\u3088\u308a\u660e\u78ba\u306b\u3059\u308b\u8aac\u660e\u3084\u95a2\u9023\u306e\u56f3\u89e3\u304c\u5fc5\u8981\u3068\u5224\u65ad\u3057\u305f\u305f\u3081\u3067\u3059\u3002<\/span><\/p>\n

<\/a>\u6982\u8981<\/h2>\n

Unit 42\u306e\u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u306f\u5e83\u304f\u4f7f\u308f\u308c\u3066\u3044\u308b\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u30d7\u30ed\u30b8\u30a7\u30af\u30c8JsonWebToken\u306b\u65b0\u305f\u306a\u8106\u5f31\u6027\u3092\u767a\u898b\u3057\u307e\u3057\u305f\u3002\u672c\u8106\u5f31\u6027\u306e\u6df1\u523b\u5ea6\u8a55\u4fa1\u306f\u9ad8(CVSS 7.6)\u3067\u3001CVE\u8b58\u5225\u756a\u53f7\u306fCVE-2022-23529<\/a>\u3067\u3059\u3002<\/p>\n

\u3053\u306e\u8106\u5f31\u6027\u3092\u653b\u6483\u8005\u304c\u5229\u7528\u3057\u305f\u5834\u5408\u3001JSON Web\u30c8\u30fc\u30af\u30f3 (JWT)\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u60aa\u610f\u3092\u6301\u3063\u3066\u7d30\u5de5\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u305d\u306eWeb\u30c8\u30fc\u30af\u30f3\u3092\u691c\u8a3c\u3059\u308b\u30b5\u30fc\u30d0\u30fc\u4e0a\u3067\u3001\u30ea\u30e2\u30fc\u30c8\u30b3\u30fc\u30c9\u5b9f\u884c (RCE) \u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u8106\u5f31\u6027\u3092\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3059\u308b\u306b\u306f\u3001\u3044\u304f\u3064\u304b\u524d\u63d0\u6761\u4ef6\u304c\u63c3\u3063\u3066\u3044\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u653b\u6483\u8005\u304c\u91ce\u751f\u3067(in the wild)\u3053\u306e\u8106\u5f31\u6027\u3092\u4f7f\u3046\u53ef\u80fd\u6027\u306f\u4f4e\u304f\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n

\u304a\u4f7f\u3044\u306eJsonWebToken\u30d1\u30c3\u30b1\u30fc\u30b8\u304c\u30d0\u30fc\u30b8\u30e7\u30f3<\/span>8.5.1<\/b>\u307e\u305f\u306f\u305d\u308c\u4ee5\u524d\u306e\u5834\u5408\u306f\u3001\u672c\u8106\u5f31\u6027\u306b\u5bfe\u3059\u308b\u4fee\u6b63\u3092\u542b\u3080JsonWebToken\u30d1\u30c3\u30b1\u30fc\u30b8\u306e\u30d0\u30fc\u30b8\u30e7\u30f3<\/span>9.0.0<\/b>\u307e\u305f\u306f\u305d\u308c\u4ee5\u964d\u306b\u66f4\u65b0\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/span><\/p>\n

JsonWebToken<\/a>\u306f\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u306eJavaScript\u30d1\u30c3\u30b1\u30fc\u30b8\u3067\u3001\u3053\u308c\u3092\u4f7f\u3046\u3068JWT\u3092\u691c\u8a3c\/\u7f72\u540d\u3067\u304d\u307e\u3059\u3002JWT\u306e\u4e3b\u306a\u5229\u7528\u7528\u9014\u306f\u8a8d\u8a3c\u3068\u8a8d\u53ef\u3067\u3001\u958b\u767a\u3068\u4fdd\u5b88\u306fAuth0\u304c\u884c\u3063\u3066\u3044\u307e\u3059\u3002\u672c\u7a3f\u57f7\u7b46\u6642\u70b9\u3067\u672c\u30d1\u30c3\u30b1\u30fc\u30b8\u306f\u9031\u6b21900\u4e07\u56de\u4ee5\u4e0a\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u30012\u4e07\u4ef6\u4ee5\u4e0a\u306e\u4f9d\u5b58\u95a2\u4fc2(JsonWebToken\u306e\u30da\u30fc\u30b8\u306b\u3088\u308b)\u3092\u6301\u3061\u307e\u3059\u3002\u3053\u306e\u30d1\u30c3\u30b1\u30fc\u30b8\u306f\u3055\u307e\u3056\u307e\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u8a8d\u8a3c\u30fb\u8a8d\u53ef\u6a5f\u80fd\u3067\u5927\u304d\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306e\u304a\u5ba2\u69d8\u306f\u3001JsonWebToken\u30d1\u30c3\u30b1\u30fc\u30b8\u306e\u8106\u5f31\u306a\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u5b9f\u884c\u3057\u3066\u3044\u308b\u30a2\u30bb\u30c3\u30c8\u3092Prisma Cloud\u3092\u4f7f\u3063\u3066\u7279\u5b9a\u3057\u3001\u30b9\u30ad\u30e3\u30f3\u7d50\u679c\u304b\u3089\u95a2\u9023\u3059\u308bCVE\u3092\u7279\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
\u95a2\u9023\u3059\u308bUnit 42\u306e\u30c8\u30d4\u30c3\u30af<\/b><\/td>\n\u00a0CVE-2022-23529<\/a>, remote code execution<\/a>, <\/span>open source<\/a>, <\/span>cloud<\/a><\/td>\n<\/tr>\n<\/thead>\n<\/table>\n

<\/a>JWT\u5165\u9580<\/h2>\n

JWT (\u30b8\u30e7\u30c3\u30c8\u3068\u767a\u97f3)\u306fJSON\u30c7\u30fc\u30bf\u3092\u30a8\u30f3\u30b3\u30fc\u30c9\u30fb\u7f72\u540d\u3059\u308b\u3053\u3068\u3067\u5b89\u5168\u306b\u60c5\u5831\u3092\u8ee2\u9001\u3059\u308b\u65b9\u6cd5\u3092\u5b9a\u7fa9\u3057\u305f\u30aa\u30fc\u30d7\u30f3\u30b9\u30bf\u30f3\u30c0\u30fc\u30c9<\/a>\u3067\u3059\u3002JWT\u306f\u30c9\u30c3\u30c8(.)<\/span>\u3067\u533a\u5207\u3089\u308c\u305f3\u3064\u306e\u90e8\u5206\u304b\u3089\u306a\u308b\u6587\u5b57\u5217\u69cb\u9020\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u30d8\u30c3\u30c0<\/span>.\u30da\u30a4\u30ed\u30fc\u30c9<\/span>.\u7f72\u540d<\/span><\/span><\/p>\n

JWT\u306f\u4efb\u610f\u306e\u60c5\u5831\u306e\u4f1d\u9054\u306b\u4f7f\u3048\u307e\u3059\u304c\u3001\u4e3b\u306a\u7528\u9014\u306f\u300c\u3042\u308b\u4e3b\u4f53\u306b\u95a2\u3059\u308b\u3072\u3068\u307e\u3068\u307e\u308a\u306e\u60c5\u5831\u300d\u3092\u4f1d\u9054\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u3053\u306e\u60c5\u5831\u306f\u300c\u30af\u30ec\u30fc\u30e0(claim)\u300d\u3068\u547c\u3070\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u5b9f\u969b\u306b\u306f\u300c\u3042\u308b\u30e6\u30fc\u30b6\u30fc\u306b\u95a2\u3059\u308b\u6709\u76ca\u306a\u60c5\u5831\u300d\u3092\u542b\u3080\u3053\u3068\u304c\u591a\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n

JWT\u306e\u3082\u3063\u3068\u3082\u4e00\u822c\u7684\u306a\u7528\u9014\u306f\u8a8d\u8a3c(authentication)\u3068\u8a8d\u53ef(authorization)\u3067\u3059\u3002\u3053\u3053\u3067\u306f\u7c21\u5358\u306bJWT\u306e\u69cb\u9020\u3092\u304a\u3055\u3089\u3044\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n

<\/a>JWT\u30d8\u30c3\u30c0<\/strong><\/h3>\n

\u305f\u3044\u3066\u3044\u306e\u30d8\u30c3\u30c0\u306f\u300c\u7f72\u540d\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u300d\u3068\u300c\u30c8\u30fc\u30af\u30f3\u306e\u7a2e\u985e\u300d\u3092\u793a\u30592\u3064\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3067\u69cb\u6210\u3055\u308c\u3066\u3044\u307e\u3059(\u56f31)\u3002<\/p>\n

\"\u753b\u50cf1\u306f\u4e2d\u62ec\u5f27\u3067\u56f2\u307e\u308c\u305f2\u884c\u306e\u30b3\u30fc\u30c9\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u30021\u884c\u76ee\u306f\u300c"alg":
\u56f31. JWT\u30d8\u30c3\u30c0<\/figcaption><\/figure>\n

<\/a>JWT\u30da\u30a4\u30ed\u30fc\u30c9<\/strong><\/h3>\n

\u30da\u30a4\u30ed\u30fc\u30c9(\u56f32)\u306f\u30c8\u30fc\u30af\u30f3\u306e2\u756a\u76ee\u306e\u90e8\u5206\u3067\u3001\u3053\u3053\u306b\u30af\u30ec\u30fc\u30e0\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u305f\u3044\u3066\u3044\u306f\u30e6\u30fc\u30b6\u30fc\u306b\u95a2\u3059\u308b\u6709\u76ca\u306a\u60c5\u5831\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n

\"\u753b\u50cf2\u306f\u4e2d\u62ec\u5f27\u3067\u56f2\u307e\u308c\u305f2\u884c\u306e\u30b3\u30fc\u30c9\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u30021\u884c\u76ee\u306f\u300c"alg":
\u56f32. JWT\u30da\u30a4\u30ed\u30fc\u30c9<\/figcaption><\/figure>\n

\u30af\u30ec\u30fc\u30e0\u306b\u306f\u300c\u4e88\u7d04\u6e08\u307f\u30af\u30ec\u30fc\u30e0\u300d\u3001\u300c\u30d1\u30d6\u30ea\u30c3\u30af\u30af\u30ec\u30fc\u30e0\u300d\u3001\u300c\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30af\u30ec\u30fc\u30e0\u300d\u306e3\u7a2e\u985e\u304c\u3042\u308a\u3001\u305d\u306e\u8a73\u7d30\u306fRFC7519<\/a>\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u30d8\u30c3\u30c0\u3068\u30da\u30a4\u30ed\u30fc\u30c9\u306f\u305d\u308c\u305e\u308cBase64Url\u3067\u30a8\u30f3\u30b3\u30fc\u30c9\u3055\u308c\u3001JWT\u6587\u5b57\u5217(\u30d8\u30c3\u30c0<\/span>.\u30da\u30a4\u30ed\u30fc\u30c9<\/span>.\u7f72\u540d<\/span><\/span>)\u306e1\u756a\u76ee\u306e\u90e8\u5206\u30682\u756a\u76ee\u306e\u90e8\u5206\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n

\u3053\u306e\u4f8b\u3067\u306fJWT\u30d8\u30c3\u30c0\u304ceyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9<\/span>\u3001JWT\u30da\u30a4\u30ed\u30fc\u30c9\u304c eyJ1c2VyX25hbWUiOiJKb2huIERvZSIsImFkbWluIjp0cnVlfQ<\/span>\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n

\u305d\u306e\u5f8c\u3001JWT\u306e3\u756a\u76ee\u306e\u90e8\u5206\u3067\u3042\u308b\u7f72\u540d\u3092\u79d8\u5bc6\u9375\u3092\u4f7f\u3063\u3066\u6b21\u306e\u5f0f\u3067\u8a08\u7b97(\u7f72\u540d)\u3057\u307e\u3059\u3002\u7f72\u540d\u306f\u30c8\u30fc\u30af\u30f3\u304c\u507d\u9020\u3084\u64cd\u4f5c\u3092\u3055\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306b\u4f7f\u3044\u307e\u3059\u3002\u79d8\u5bc6\u9375\u3067\u7f72\u540d\u3057\u3066\u3044\u308b\u306e\u3067\u9001\u4fe1\u8005\u306e\u771f\u507d\u3092\u691c\u8a3c\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u7f72\u540d\u306e\u8a08\u7b97\u4f8b\u3067\u3059\u3002<\/span><\/p>\n

base64Url(HMACSHA256(base64Url(header) + \".\" + base64Url(payload), secret_key)) = epQym-1JoN9eep458VBZw4-cVhwfmsI1cfaGa6PE818<\/span><\/span><\/p>\n

\u5404\u90e8\u5206\u3092\u307e\u3068\u3081\u308b\u3068\u56f33\u306b\u793a\u3059\u3088\u3046\u306aJWT\u304c\u5b8c\u6210\u3057\u307e\u3059\u3002<\/p>\n

\"\u753b\u50cf3\u306fJSONWeb\u30c8\u30fc\u30af\u30f3\u6587\u5b57\u5217\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3002\u30d8\u30c3\u30c0\u3001\u30da\u30a4\u30ed\u30fc\u30c9\u3001\u7f72\u540d\u306e\u5404\u90e8\u5206\u304c\u305d\u308c\u305e\u308c\u8d64\u3001\u7dd1\u3001\u9752\u7dd1\u3067\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u3002
\u56f33. \u5b8c\u6210\u3057\u305fJSON Web\u30c8\u30fc\u30af\u30f3<\/figcaption><\/figure>\n

<\/a>\u8a8d\u8a3c\u306e\u3057\u304f\u307f<\/h2>\n

\u3053\u3053\u3067\u3001JSON Web\u30c8\u30fc\u30af\u30f3\u3092\u4f7f\u3046\u7c21\u5358\u306a\u8a8d\u8a3c\u51e6\u7406\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046(\u56f34)\u3002<\/p>\n

    \n
  1. \u30e6\u30fc\u30b6\u30fc\u306f\u4fdd\u8b77\u3055\u308c\u305f\u30ea\u30bd\u30fc\u30b9\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u305f\u3081\u8a8d\u8a3c\u60c5\u5831(\u901a\u5e38\u306f\u30e6\u30fc\u30b6\u30fc\u540d\u3068\u30d1\u30b9\u30ef\u30fc\u30c9)\u3092\u4f7f\u3063\u3066\u30ed\u30b0\u30a4\u30f3\u3057\u307e\u3059\u3002<\/li>\n
  2. \u3053\u306e\u60c5\u5831\u3092\u542b\u3080\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u8a8d\u8a3c\u30b5\u30fc\u30d0\u30fc\u306b\u9001\u4fe1\u3055\u308c\u307e\u3059\u3002<\/li>\n
  3. \u8a8d\u8a3c\u30b5\u30fc\u30d0\u30fc\u304c\u30ea\u30af\u30a8\u30b9\u30c8\u3067\u9001\u4fe1\u3055\u308c\u305f\u60c5\u5831\u3092\u691c\u8a3c\u3057\u3001\u79d8\u5bc6\u9375\u3067\u7f72\u540d\u3057\u305fJWT\u3092\u767a\u884c\u3057\u307e\u3059\u3002\u79d8\u5bc6\u9375\u3067\u7f72\u540d\u3057\u305fJWT\u306f\u30b5\u30fc\u30d0\u30fc\u4e0a\u306b\u4fdd\u5b58\u3057\u3066\u3082\u3088\u3044\u3057\u30b7\u30fc\u30af\u30ec\u30c3\u30c8\u30de\u30cd\u30fc\u30b8\u30e3\u3092\u4f7f\u3063\u3066\u5225\u306e\u5834\u6240\u306b\u4fdd\u5b58\u3057\u3066\u3082\u304b\u307e\u3044\u307e\u305b\u3093\u3002<\/li>\n
  4. \u3053\u308c\u4ee5\u964d\u3001\u5404\u30e6\u30fc\u30b6\u30fc\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u306fAuthorization\u30d8\u30c3\u30c0\u5185\u306bJWT\u304c\u542b\u307e\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u3046\u3059\u308b\u3053\u3068\u3067\u3001\u9069\u5207\u306a\u6a29\u9650\u3092\u6301\u3064\u30e6\u30fc\u30b6\u30fc\u306f\u4fdd\u8b77\u3055\u308c\u305f\u30ea\u30bd\u30fc\u30b9\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u53d7\u3051\u3089\u308c\u307e\u3059\u3002<\/li>\n
  5. \u30e6\u30fc\u30b6\u30fc\u304c\u4fdd\u8b77\u3055\u308c\u305f\u30ea\u30bd\u30fc\u30b9\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u30ea\u30af\u30a8\u30b9\u30c8\u3059\u308b\u3068\u3001JWT\u3092\u542b\u3080\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304b\u3089JWT\u8a8d\u8a3c\u30b5\u30fc\u30d0\u30fc\u306b\u5bfe\u3057\u3066\u751f\u6210\u3055\u308c\u307e\u3059\u3002<\/li>\n
  6. Authorization\u30d8\u30c3\u30c0\u5185\u3067\u9001\u4fe1\u3055\u308c\u305fJWT\u306e\u79d8\u5bc6\u9375\u306b\u3088\u308b\u691c\u8a3c\u304c\u6e08\u3080\u3068\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u3057\u305f\u30ea\u30bd\u30fc\u30b9\u306b\u5bfe\u3059\u308b\u30a2\u30af\u30bb\u30b9\u304c\u30e6\u30fc\u30b6\u30fc\u306b\u63d0\u4f9b\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u51e6\u7406\u306f\u3001\u9014\u4e2d\u3067\u6539\u3056\u3093\u3055\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u3001\u305d\u306e\u30e6\u30fc\u30b6\u30fc\u306f\u30ea\u30af\u30a8\u30b9\u30c8\u3057\u305f\u60c5\u5831\u3092\u95b2\u89a7\u3059\u308b\u6b63\u5f53\u306a\u6a29\u9650\u3092\u6301\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u304b\u3081\u308b\u305f\u3081\u306b\u884c\u3044\u307e\u3059\u3002<\/span>node.js<\/span>\u306eJsonWebToken\u30d1\u30c3\u30b1\u30fc\u30b8\u3067\u306f\u3053\u306e\u51e6\u7406\u3092<\/span> verify()<\/span>\u95a2\u6570\u3067\u884c\u3044\u307e\u3059\u3002<\/span><\/li>\n<\/ol>\n
    <\/div>\n
    \"\u753b\u50cf4\u306f\u30e6\u30fc\u30b6\u30fc\u3068\u305d\u306e\u8a8d\u8a3c\u60c5\u5831\u306e\u63d0\u4f9b\u304b\u3089\u59cb\u307e\u308bJWT\u306e\u8a8d\u8a3c\u30d7\u30ed\u30bb\u30b9\u3092\u793a\u3057\u305f\u56f3\u3067\u3059\u3002JWT\u767a\u884c\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u8a8d\u8a3c\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u6d41\u308c\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\"
    \u56f34. JWT\u3092\u4f7f\u3063\u305f\u8a8d\u8a3c\u30d5\u30ed\u30fc<\/figcaption><\/figure>\n

    <\/a>JWT\u3068\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9<\/h2>\n

    \u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u304a\u304b\u3052\u3067\u3001\u591a\u304f\u306e\u7d44\u7e54\u306f\u6642\u9593\u3092\u542b\u3080\u3055\u307e\u3056\u307e\u306a\u30ea\u30bd\u30fc\u30b9\u3092\u7bc0\u7d04\u3067\u304d\u3001\u3053\u308c\u304c\u30b9\u30de\u30fc\u30c8\u3067\u3059\u3070\u3084\u3044\u554f\u984c\u89e3\u6c7a\u306b\u3064\u306a\u304c\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u3053\u3046\u3057\u3066JWT\u304c\u591a\u304f\u306e\u7d44\u7e54\u304c\u983c\u308a\u306b\u3059\u308b\u3054\u304f\u4e00\u822c\u7684\u306a\u6280\u8853\u3068\u306a\u3063\u305f\u3053\u3068\u306f\u3001JWT\u3092\u5b9f\u88c5\u3059\u308b\u3044\u304f\u3064\u304b\u306e\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u304c\u5927\u304d\u306a\u6210\u529f\u3092\u53ce\u3081\u305f\u8981\u56e0\u306e1\u3064\u306b\u3082\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

    \u305d\u3046\u3057\u305f\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e1\u3064\u306bJsonWebToken<\/a>\u304c\u3042\u308a\u307e\u3059\u3002JsonWebToken\u306f\u3001JWT\u306e\u7f72\u540d\u30fb\u691c\u8a3c\u30fb\u5fa9\u53f7\u3092\u884c\u3046\u8457\u540d\u306aJavaScript\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3067\u3059\u3002\u3053\u306e\u30c4\u30fc\u30eb\u306fOkta\u306e\u4e00\u90e8\u3068\u306a\u3063\u305fAuth0\u304c\u958b\u767a\u30fb\u4fdd\u5b88\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

    <\/a>\u8106\u5f31\u6027(CVE-2022-23529)<\/h2>\n

    \u5178\u578b\u7684\u306aJWT\u3078\u306e\u653b\u6483\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u507d\u9020\u6280\u8853\u3092\u4f7f\u3063\u3066\u4e0d\u5177\u5408\u306e\u3042\u308bJWT\u5b9f\u88c5\u3092\u60aa\u7528\u3057\u307e\u3059\u3002\u3053\u306e\u7a2e\u306e\u653b\u6483\u306b\u3088\u308b\u5f71\u97ff\u306f\u6df1\u523b\u306b\u306a\u308a\u304c\u3061\u3067\u3059\u3002\u653b\u6483\u304c\u6210\u529f\u3059\u308c\u3070\u3001\u653b\u6483\u8005\u304c\u8a8d\u8a3c\u30fb\u8a8d\u53ef\u306e\u3057\u304f\u307f\u3092\u56de\u907f\u3057\u3066\u6a5f\u5bc6\u60c5\u5831\u306b\u30a2\u30af\u30bb\u30b9\u3057\u305f\u308a\u3001\u30c7\u30fc\u30bf\u3092\u7a83\u53d6\u30fb\u6539\u3056\u3093\u3057\u305f\u308a\u3067\u304d\u308b\u5834\u5408\u304c\u591a\u3044\u304b\u3089\u3067\u3059\u3002<\/p>\n

    JsonWebToken\u30d1\u30c3\u30b1\u30fc\u30b8\u304c\u63d0\u4f9b\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u306e1\u3064\u306bverify<\/a><\/span>\u304c\u3042\u308a\u307e\u3059\u3002verify<\/span>\u30e1\u30bd\u30c3\u30c9\u306f3\u3064\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3001token<\/span>\u3001secretOrPublicKey<\/span>\u3001options<\/span>\u3092\u53d7\u3051\u53d6\u308a\u307e\u3059\u3002\u3053\u306e\u95a2\u6570\u306fJWT\u306e\u6709\u52b9\u6027\u3092\u691c\u8a3c\u3057\u3001\u5fa9\u53f7\u3057\u305f\u30da\u30a4\u30ed\u30fc\u30c9\u90e8\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n

    \u3053\u3061\u3089\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/a>\u306b\u3088\u308b\u3068\u3001secretOrPublicKey<\/span>\u306b\u306f\u6587\u5b57\u5217\u304b\u30d0\u30c3\u30d5\u30a1\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u306b\u306a\u3063\u3066\u3044\u307e\u3059[\u8a33\u6ce8: \u672c\u7a3f\u306e\u8abf\u67fb\u304c\u884c\u308f\u308c\u305f2021\u5e747\u6708\u4ee5\u524d\u306eReadMe.md\u306e\u5185\u5bb9\u3088\u308a\u30022022\u5e7411\u670829\u65e5\u306eReadMe.md\u4ee5\u964d\u306f\u6587\u5b57\u5217\u3068Buffer\u306e\u307b\u304b\u306bKeyObject\u3082\u6307\u5b9a\u53ef\u80fd\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u304c\u3001\u672c\u7a3f\u3067\u306fKeyObject\u306b\u3064\u3044\u3066\u306f\u89e6\u308c\u307e\u305b\u3093]\u3002JsonWebToken\u306everify.js<\/span>\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u306b\u306f\u3001\u4ee5\u4e0b\u56f35\u306e\u3088\u3046\u306a\u884c\u304c\u3042\u308b\u306e\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n

    \"\u753b\u50cf5\u306fverify.js\u304b\u3089\u5f15\u7528\u3057\u305f4\u884c\u306e\u30b3\u30fc\u30c9\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3002secretOrPublicKey\u304c\u542b\u307e\u308c\u3066\u3044\u308b
    \u56f35. verify.js<\/span>\u304b\u3089\u306e\u30b3\u30fc\u30c9\u30b9\u30cb\u30da\u30c3\u30c8<\/figcaption><\/figure>\n

    options<\/span>\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u4e00\u89a7\u3067\u8a31\u53ef\u3055\u308c\u305f\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u304c\u63d0\u4f9b\u3055\u308c\u306a\u304b\u3063\u305f\u5834\u5408\u3001secretOrPublicKey<\/span>\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u63d0\u4f9b\u3059\u308bPEM(Privacy Enhanced Mail)\u30d5\u30a1\u30a4\u30eb\u5185\u306e\u5024\u304c\u4ee3\u308f\u308a\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u306f\u554f\u984c\u304c\u3042\u308a\u307e\u3059\u3002secretOrPublicKey<\/span>\u304c\u6709\u52b9\u306aPEM\u30d5\u30a1\u30a4\u30eb\u306e\u5185\u5bb9\u304b\u3069\u3046\u304b\u3092\u78ba\u304b\u3081\u305a\u3001\u3053\u306e\u672a\u691c\u8a3c\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u5074\u306etoString()<\/span>\u30e1\u30bd\u30c3\u30c9\u3092\u305d\u306e\u307e\u307e\u4f7f\u3063\u3066\u3057\u307e\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3067\u304d\u308b\u653b\u6483\u8005\u306f\u3001\u81ea\u5206\u306etotSring<\/span>\u30e1\u30bd\u30c3\u30c9\u3092\u6e21\u305b\u307e\u3059\u3002\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u306f\u3001JsonWebToken\u306e<\/span>verify<\/span>(114\u884c\u76ee)\u3067\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002<\/span><\/p>\n

    node.js<\/span>(JavaScript\u30e9\u30f3\u30bf\u30a4\u30e0\u74b0\u5883\u306e1\u3064)\u306e\u30d0\u30fc\u30b8\u30e7\u30f318.9.1\u3068JsonWebToken\u30d1\u30c3\u30b1\u30fc\u30b8\u306e\u30d0\u30fc\u30b8\u30e7\u30f3 8.5.1\u3092\u4f7f\u3063\u3066<\/span>verify<\/span>\u95a2\u6570\u306b\u60aa\u610f\u306e\u3042\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092<\/span>secretOrPublicKey<\/span>\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u4ecb\u3057\u3066\u6e21\u3059\u3068\u3044\u3046\u30b7\u30ca\u30ea\u30aa\u3067\u3001\u305d\u306e<\/span>toString()<\/span>\u30e1\u30bd\u30c3\u30c9\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3057\u305f\u5834\u5408\u3001\u4f55\u304c\u8d77\u3053\u308b\u304b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/span><\/p>\n

    \"\u753b\u50cf6\u306f\u3001\u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u304cJsonWebToken\u3092\u4f7f\u3063\u3066\u5358\u7d14\u306aJWT\u30c8\u30fc\u30af\u30f3\u3092\u4f5c\u6210\u3057\u3001\u60aa\u610f\u306e\u3042\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u3066\u305d\u308c\u3092verify\u95a2\u6570\u306b\u6e21\u3057\u3001\u305d\u306e\u7d50\u679c\u3092\u78ba\u8a8d\u3057\u3066\u3044\u308b\u30b3\u30fc\u30c9\u884c\u3092\u542b\u3080\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3002
    \u56f36. \u4efb\u610f\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u66f8\u304d\u8fbc\u3080\u6982\u5ff5\u5b9f\u8a3c\u30b3\u30fc\u30c9(PoC)<\/figcaption><\/figure>\n

    \u79c1\u305f\u3061\u306e\u60aa\u610f\u306e\u3042\u308b\u30b3\u30fc\u30c9\u306fverify<\/span>\u95a2\u6570\u5185\u3067<\/span>.includes(\u2018BEGIN CERTIFICATE\u2019)<\/span>\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u524d\u306b\u5b9f\u884c\u3055\u308c\u3066node\u30d7\u30ed\u30bb\u30b9\u3092\u7d42\u4e86\u3057\u3001\u4efb\u610f\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u30db\u30b9\u30c8\u30de\u30b7\u30f3\u4e0a\u306b\u66f8\u304d\u8fbc\u307f\u307e\u3059\u3002<\/span><\/p>\n

    \"\u753b\u50cf7\u306f\u66f8\u304d\u8fbc\u307e\u308c\u305f\u4efb\u610f\u306e\u30d5\u30a1\u30a4\u30eb\u306e\u30bf\u30a4\u30c8\u30eb\u30d0\u30fc\u3068\u305d\u306e\u5185\u5bb9\u3092\u8868\u793a\u3057\u305f\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3002\u30d5\u30a1\u30a4\u30eb\u540d\u306f
    \u56f37 PoC\u306e\u7d50\u679c\u30d5\u30a1\u30a4\u30eb\u304c\u4f5c\u6210\u3055\u308c\u305f<\/figcaption><\/figure>\n

    \u540c\u3058\u624b\u6cd5\u3067RCE\u3082\u5b9f\u73fe\u3067\u304d\u307e\u3059\u304c\u3001\u305d\u308c\u306b\u306fchild_process<\/span>\u30e2\u30b8\u30e5\u30fc\u30eb\u3067\u30da\u30a4\u30ed\u30fc\u30c9\u3092\u82e5\u5e72\u4fee\u6b63\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059(\u56f38)\u3002<\/p>\n

    \"\u753b\u50cf8\u306fchild_process\u30e2\u30b8\u30e5\u30fc\u30eb\u3067\u30da\u30a4\u30ed\u30fc\u30c9\u3092\u4fee\u6b63\u3057\u305f3\u884c\u306e\u30b3\u30fc\u30c9\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3002\"
    \u56f38. RCE\u306ePoC<\/figcaption><\/figure>\n

    \u30b7\u30fc\u30af\u30ec\u30c3\u30c8\u306f\u8a8d\u8a3c\u30b5\u30fc\u30d0\u30fc\u306e\u5916\u90e8\u306b\u4fdd\u5b58\u3067\u304d\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u5225\u306e\u5834\u6240\u306b\u3042\u308b\u30b7\u30fc\u30af\u30ec\u30c3\u30c8\u30de\u30cd\u30fc\u30b8\u30e3\u3078\u306e\u4fdd\u5b58\u3082\u53ef\u80fd\u3067\u3059\u3002\u30b7\u30fc\u30af\u30ec\u30c3\u30c8\u30de\u30cd\u30fc\u30b8\u30e3\u3078\u306e\u66f8\u304d\u8fbc\u307f\u6a29\u9650\u3060\u3051\u3092\u3082\u3063\u3066\u3044\u308b\u653b\u6483\u8005\u306f\u3001\u3053\u306e\u6642\u70b9\u3067\u8a8d\u8a3c\u30b5\u30fc\u30d0\u30fc\u4e0a\u3067\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3067\u304d\u308b\u72b6\u614b\u3067\u3059\u3002\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u6709\u52b9\u306a\u30b7\u30fc\u30af\u30ec\u30c3\u30c8\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3057\u304f\u307f\u304c\u3042\u3063\u305f\u5834\u5408\u3001\u3053\u306e\u30b3\u30fc\u30c9\u5b9f\u884c\u306f\u3067\u304d\u307e\u305b\u3093\u3002 <\/span><\/p>\n

    <\/a>\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306e\u524d\u63d0\u6761\u4ef6<\/h2>\n

    \u524d\u7bc0\u3067\u306f\u4fb5\u5bb3\u3055\u308c\u305f\u79d8\u5bc6\u9375\u304c\u3069\u306e\u3088\u3046\u306bRCE\u306b\u3064\u306a\u304c\u308b\u304b\u3092\u793a\u3057\u307e\u3057\u305f\u3002\u5b9f\u969b\u306b\u306f\u3001\u79d8\u5bc6\u9375\u306e\u4fdd\u6301\u30fb\u7ba1\u7406\u306b\u306f\u3001\u6697\u53f7\u5316\u4ee5\u5916\u306b\u30b7\u30fc\u30af\u30ec\u30c3\u30c8\u30de\u30cd\u30fc\u30b8\u30e3\u306e\u5229\u7528\u3084\u79d8\u5bc6\u9375\u306e\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u3068\u3044\u3063\u305f\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u304c\u884c\u308f\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3057\u3087\u3046\u3002\u00a0<\/span><\/p>\n

    \u672c\u7a3f\u3067\u89e3\u8aac\u3057\u305f\u8106\u5f31\u6027\u3092\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3057\u3066secretOrPublicKey<\/span>\u306e\u5024\u3092\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3057\u305f\u3051\u308c\u3070\u3001\u653b\u6483\u8005\u306f\u30b7\u30fc\u30af\u30ec\u30c3\u30c8\u7ba1\u7406\u7528\u306e\u30d7\u30ed\u30bb\u30b9\u306b\u5185\u5728\u3059\u308b\u4e0d\u5177\u5408\u3092\u5229\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u5834\u5408\u3067\u3082\u30b7\u30fc\u30af\u30ec\u30c3\u30c8\u30de\u30cd\u30fc\u30b8\u30e3\u304b\u3089\u306e\u51fa\u529b\u304c\u4e0d\u660e\u3067\u3001\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306f\u8907\u96d1\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u304c\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306b\u9069\u3055\u306a\u3044\u578b(\u305f\u3068\u3048\u3070\u6587\u5b57\u5217)\u3067\u3042\u308b\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

    \u8106\u5f31\u6027\u306e\u8907\u96d1\u5ea6\u306b\u9451\u307f\u3066\u79c1\u305f\u3061\u306fCVSS\u30b9\u30b3\u30a26.6\u3092\u63d0\u6848\u3057\u3001\u6700\u7d42\u7684\u306b\u306f\u5148\u65b9\u30c1\u30fc\u30e0\u306e\u8a08\u7b97\u3067\u63d0\u6848\u3092\u3044\u305f\u3060\u3044\u305fCVSS\u30b9\u30b3\u30a27.6\u306b\u540c\u610f\u3057\u307e\u3057\u305f\u3002<\/span><\/p>\n

    <\/a>JsonWebToken\u306e\u4fee\u6b63<\/h2>\n

    JsonWebToken\u30d0\u30fc\u30b8\u30e7\u30f3 9.0.0\u306f\u4ee5\u4e0b\u306e\u4fee\u6b63<\/a>\u3092\u542b\u3093\u3067\u3044\u307e\u3059\u3002<\/p>\n

    \"\u753b\u50cf9\u306f\u8907\u6570\u884c\u306e\u30b3\u30fc\u30c9\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002\u30d0\u30fc\u30b8\u30e7\u30f39.0.0\u3067\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u305fJsonWebToken\u306e\u4fee\u6b63\u3002secretOrPublickey\u306e\u578b\u304c\u30c1\u30a7\u30c3\u30af\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u3063\u305f\"
    \u56f39 \u4fee\u6b63<\/figcaption><\/figure>\n

    \u8106\u5f31\u6027\u306e\u3042\u308b\u30b3\u30fc\u30c9\u3092\u524a\u9664\u3057\u3001secretOrPublickey<\/span>\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u578b\u30c1\u30a7\u30c3\u30af\u3092\u884c\u3063\u3066\u3001secretOrPublicKey<\/span>\u306b\u4e0d\u6b63\u306a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u542b\u307e\u308c\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3057\u305f\u3002<\/p>\n

    <\/a>\u958b\u793a\u30d7\u30ed\u30bb\u30b9<\/h2>\n