{"id":125281,"date":"2022-10-04T23:40:03","date_gmt":"2022-10-05T06:40:03","guid":{"rendered":"https:\/\/unit42.paloaltonetworks.com\/?p=125281"},"modified":"2022-10-11T19:04:58","modified_gmt":"2022-10-12T02:04:58","slug":"proxynotshell-cve-2022-41040-cve-2022-41082","status":"publish","type":"post","link":"https:\/\/unit42.paloaltonetworks.com\/ja\/proxynotshell-cve-2022-41040-cve-2022-41082\/","title":{"rendered":"\u8105\u5a01\u306b\u95a2\u3059\u308b\u60c5\u5831: Microsoft Exchange Server (ProxyNotShell) \u306e\u8106\u5f31\u6027 (CVE-2022-41040\u3001CVE-2022-41082)"},"content":{"rendered":"<h2><a id=\"post-125265-_4lt92rr5muov\"><\/a>\u6982\u8981<\/h2>\n<p>8\u6708\u4e0a\u65ec\u3001<a href=\"https:\/\/gteltsc.vn\/blog\/warning-new-attack-campaign-utilized-a-new-0day-rce-vulnerability-on-microsoft-exchange-server-12715.html\">GTSC<\/a>\u306f<a href=\"https:\/\/www.mandiant.com\/resources\/blog\/pst-want-shell-proxyshell-exploiting-microsoft-exchange-servers\">ProxyShell<\/a> (CVE-2021-34473\u3001CVE-2021-34523\u3001CVE-2021-31207)\u3068\u3088\u304f\u4f3c\u305fMicrosoft Exchange\u306e\u65b0\u305f\u306a\u30bc\u30ed\u30c7\u30a4\u306e\u30ea\u30e2\u30fc\u30c8\u30b3\u30fc\u30c9\u5b9f\u884c\u306e\u8106\u5f31\u6027(RCE)\u3092\u767a\u898b\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u3053\u306e\u8106\u5f31\u6027\u306f\u3042\u308bGTSC\u306e\u9867\u5ba2\u306e\u4e0d\u5be9\u306a\u6d3b\u52d5\u306b\u5bfe\u3057\u3066SOC\u304c\u8abf\u67fb\u3057\u305f\u7d50\u679c\u3067\u3042\u308b\u3068\u601d\u308f\u308c\u3001\u5b9f\u969b\u306e\u653b\u6483\u3068\u3057\u3066\u898b\u3064\u304b\u3063\u3066\u3044\u307e\u3059\u3002GTSC\u306f\u8106\u5f31\u6027\u306e\u30b9\u30b3\u30fc\u30d7\u3092\u78ba\u5b9a\u5f8c\u3001\u30bc\u30ed\u30c7\u30a4 \u30a4\u30cb\u30b7\u30a2\u30c6\u30a3\u30d6(<a href=\"https:\/\/www.zerodayinitiative.com\/\">ZDI<\/a>)\u306b\u5831\u544a\u3092\u884c\u3044\u3001Microsoft\u3068\u306e\u9023\u643a\u3092\u9032\u3081\u3089\u308c\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u305f\u3002\u5f53\u8a72\u8106\u5f31\u6027\u306b\u306fCVE-2022-41040\u3001CVE-2022-41082\u304c\u5272\u308a\u5f53\u3066\u3089\u308c\u3066\u304a\u308a\u3001\u305d\u308c\u305e\u308c\u6df1\u523b\u5ea6(Severity)\u300c\u7dca\u6025(critical)\u300d\u3001\u300c\u91cd\u8981(important)\u300d\u3068\u8a55\u4fa1\u3055\u308c\u3066\u3044\u307e\u3059\u30021\u3064\u3081\u306eCVE-2022-41040\u306f\u30b5\u30fc\u30d0\u30fc\u30b5\u30a4\u30c9 \u30ea\u30af\u30a8\u30b9\u30c8 \u30d5\u30a9\u30fc\u30b8\u30a7\u30ea(SSRF)\u306e\u8106\u5f31\u6027\u3067\u3059\u30022\u3064\u3081\u306eCVE-2022-41082 \u306fExchange PowerShell\u306b\u653b\u6483\u8005\u304c\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u5834\u5408\u306b\u30ea\u30e2\u30fc\u30c8\u30b3\u30fc\u30c9\u5b9f\u884c(RCE)\u304c\u53ef\u80fd\u3068\u306a\u308b\u8106\u5f31\u6027\u3067\u3059\u3002<\/p>\n<p>\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306b\u306f\u8a8d\u8a3c\u304c\u5fc5\u8981\u306a\u3082\u306e\u306e\u3001\u8981\u6c42\u3055\u308c\u308b\u306e\u306f\u6a19\u6e96\u30e6\u30fc\u30b6\u30fc\u306e\u8a8d\u8a3c\u306a\u306e\u3067\u3001\u6628\u4eca\u306e\u30e6\u30fc\u30b6\u30fc\u30af\u30ec\u30c7\u30f3\u30b7\u30e3\u30eb(\u8cc7\u683c\u60c5\u5831)\u53ce\u96c6\u306e\u5bb9\u6613\u3055\u3092\u8003\u3048\u308c\u3070\u3001\u3053\u308c\u306f\u3051\u3063\u3057\u3066\u9ad8\u3044\u30cf\u30fc\u30c9\u30eb\u3068\u306f\u3044\u3048\u306a\u3044\u3067\u3057\u3087\u3046\u3002Microsoft\u306f\u3053\u308c\u3089\u306e\u8106\u5f31\u6027\u306b\u5bfe\u3059\u308b\u4fee\u6b63\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u307e\u3060\u516c\u958b\u3057\u3066\u3044\u307e\u305b\u3093\u304c\u3001GTSC\u306e\u8106\u5f31\u6027\u958b\u793a\u306b\u5bfe\u5fdc\u3059\u308b<a href=\"https:\/\/www.microsoft.com\/security\/blog\/2022\/09\/30\/analyzing-attacks-using-the-exchange-vulnerabilities-cve-2022-41040-and-cve-2022-41082\/\">\u30d6\u30ed\u30b0<\/a>\u3067\u7de9\u548c\u7b56\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306e\u304a\u5ba2\u69d8\u306f\u3001\u4ee5\u4e0b\u306e\u65b9\u6cd5\u3067ProxyNotShell\u306e\u8106\u5f31\u6027\u306b\u5bfe\u3059\u308b\u4fdd\u8b77\u3068\u7de9\u548c\u3092\u53d7\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u8105\u5a01\u9632\u5fa1\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u3092\u9069\u7528\u3057\u305fNext-Generation Firewall(NGFW)\u307e\u305f\u306fPrisma Access\u306f\u3001CVE-2022-41040\u306b\u95a2\u9023\u3059\u308b\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u30d6\u30ed\u30c3\u30af\u3067\u304d\u307e\u3059\u3002<\/li>\n<li>Cortex XSOAR\u306e\u30ec\u30b9\u30dd\u30f3\u30b9\u30d1\u30c3\u30af\u3068\u30d7\u30ec\u30a4\u30d6\u30c3\u30af\u306f\u7de9\u548c\u30d7\u30ed\u30bb\u30b9\u3092\u81ea\u52d5\u5316\u3067\u304d\u307e\u3059\u3002<\/li>\n<li>Cortex Xpanse\u306f\u81ea\u7d44\u7e54\u5185\u3067\u653b\u6483\u5bfe\u8c61\u9818\u57df\u3068\u306a\u308a\u3046\u308bMicrosoft Exchange\u30b5\u30fc\u30d0\u30fc\u306e\u8b58\u5225\u3068\u691c\u51fa\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/li>\n<li>Cortex XDR\u306f\u95a2\u9023\u3059\u308b\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u8a66\u884c\u3092\u5831\u544a\u3057\u307e\u3059\u3002<\/li>\n<li>Cortex XDR\u3067<a href=\"#post-125265-_rbvlo3jl4fd6\">\u4ee5\u4e0b\u306e<\/a>XQL\u30af\u30a8\u30ea\u3092\u4f7f\u3046\u3068\u3053\u308c\u3089\u306eCVE\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u8a66\u884c\u8ffd\u8de1\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/li>\n<li>\u9ad8\u5ea6\u306aURL\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306b\u306f\u60aa\u610f\u306e\u3042\u308bURL\u3068IP\u304c\u8ffd\u52a0\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n<li>Unit 42\u306e\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u30ec\u30b9\u30dd\u30f3\u30b9\u30c1\u30fc\u30e0\u306b\u3088\u308b\u500b\u5225\u5bfe\u5fdc\u3082\u3054\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n<p>\u8a73\u3057\u304f\u306f<a href=\"#post-125265-_rx7hmjhu7g8j\">\u7d50\u8ad6<\/a>\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<table style=\"width: 65.9196%;\">\n<tbody>\n<tr>\n<td style=\"width: 40.4922%;\"><span style=\"font-weight: 400;\">\u672c\u7a3f\u3067\u6271\u3046\u8106\u5f31\u6027<\/span><\/td>\n<td style=\"width: 165.772%;\"><span style=\"font-weight: 400;\"><a href=\"https:\/\/nvd.nist.gov\/vuln\/detail\/CVE-2022-41040\">CVE-2022-41040<\/a>, <a href=\"https:\/\/nvd.nist.gov\/vuln\/detail\/CVE-2022-41082\">CVE-2022-41082<\/a><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><a id=\"post-125265-_d1nha5oq9zwf\"><\/a>\u76ee\u6b21<\/h2>\n<p><a href=\"#post-125265-_ayg8bdbwpw5k\">\u8106\u5f31\u6027\u306e\u8a73\u7d30<\/a><br \/>\n<a href=\"#post-125265-_w1fcgztv64w8\">\u73fe\u5728\u306e\u653b\u6483\u30b9\u30b3\u30fc\u30d7<\/a><br \/>\n<a href=\"#post-125265-_50343o6a6han\">\u4e2d\u9593\u30ac\u30a4\u30c0\u30f3\u30b9<\/a><br \/>\n<a href=\"#post-125265-_rbvlo3jl4fd6\">Unit 42 \u30de\u30cd\u30fc\u30b8\u30c9 \u30b9\u30ec\u30c3\u30c8 \u30cf\u30f3\u30c6\u30a3\u30f3\u30b0 \u30c1\u30fc\u30e0\u306b\u3088\u308b\u30af\u30a8\u30ea<\/a><br \/>\n<a href=\"#post-125265-_rx7hmjhu7g8j\">\u7d50\u8ad6<\/a><\/p>\n<h2><a id=\"post-125265-_ayg8bdbwpw5k\"><\/a>\u8106\u5f31\u6027\u306e\u8a73\u7d30<\/h2>\n<p>GTSC\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30aa\u30da\u30ec\u30fc\u30b7\u30e7\u30f3 \u30bb\u30f3\u30bf\u30fc (SOC)\u306f\u3042\u308b\u9867\u5ba2\u306eMicrosoft Internet Information Services(IIS)\u30ed\u30b0\u304b\u3089\u6b21\u306eURL\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u767a\u898b\u3057\u307e\u3057\u305f\u3002<\/p>\n<p><img  class=\"aligncenter wp-image-125269 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/10\/word-image.png\" alt=\"\u3053\u306e\u56f3\u306b\u793a\u3057\u305fURL\u30ea\u30af\u30a8\u30b9\u30c8\u306fGTSC\u9867\u5ba2\u306eMicrosoft Internet Information Services\u306e\u30ed\u30b0\u304b\u3089\u767a\u898b\u3055\u308c\u305f\u3082\u306e\u3002\u6628\u5e74\u78ba\u8a8d\u3055\u308c\u305fProxyShell\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3068\u540c\u4e00\u3068\u601d\u308f\u308c\u308b \" width=\"900\" height=\"69\" \/><\/p>\n<p>\u4e00\u898b\u3059\u308b\u3068\u3053\u306eURL\u30ea\u30af\u30a8\u30b9\u30c8\u306f\u6628\u5e74\u78ba\u8a8d\u3055\u308c\u305fProxyShell\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3068\u540c\u4e00\u306b\u898b\u3048\u307e\u3059\u3002\u4e0a\u8a18\u30ea\u30af\u30a8\u30b9\u30c8\u3068\u6628\u5e74ProxyShell\u306e\u767a\u898b\u3092\u5831\u544a\u3057\u305f<a href=\"https:\/\/www.mandiant.com\/resources\/blog\/pst-want-shell-proxyshell-exploiting-microsoft-exchange-servers\">Mandiant<\/a>\u306e\u30d6\u30ed\u30b0\u304b\u3089\u306e\u4ee5\u4e0b\u306e\u629c\u7c8b\u3068\u3092\u6bd4\u8f03\u3059\u308b\u3068\u3001\u3053\u308c\u306f\u4fee\u6b63\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u9069\u7528\u3057\u3066\u3044\u306a\u3044\u30b5\u30fc\u30d0\u30fc\u3092ProxyShell\u304c\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3057\u305f\u3082\u306e\u3068\u307f\u306a\u3055\u308c\u3066\u3057\u307e\u3046\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n<p><img  class=\"aligncenter wp-image-125271 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/10\/word-image-1.png\" alt=\"\u6628\u5e74\u3001ProxyShell\u767a\u898b\u3092\u5831\u544a\u3057\u305fMandiant\u306e\u30d6\u30ed\u30b0\u304b\u3089\u306e\u629c\u7c8b\u3002\u3053\u3053\u306b\u793a\u3057\u305f\u30ea\u30af\u30a8\u30b9\u30c8\u3068ProxyNotShell\u3067\u78ba\u8a8d\u3055\u308c\u305f\u30ea\u30af\u30a8\u30b9\u30c8\u5185\u5bb9\u3068\u306e\u985e\u4f3c\u306b\u6ce8\u76ee\u3002 \" width=\"900\" height=\"355\" \/><\/p>\n<p>\u3057\u304b\u3057\u306a\u304c\u3089GTSC\u304cExchange\u30b5\u30fc\u30d0\u30fc\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u78ba\u8a8d\u3057\u3066\u307f\u308b\u3068\u3001\u3053\u306eExchange\u30b5\u30fc\u30d0\u30fc\u304c\u6700\u65b0\u3067\u3001\u3058\u3064\u306f\u3053\u308c\u304c\u65b0\u305f\u306a\u30bc\u30ed\u30c7\u30a4\u8106\u5f31\u6027\u3067\u3042\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3055\u308c\u307e\u3059\u3002GTSC\u306f\u3053\u306e\u30a2\u30af\u30bf\u30fc\u304c\u653b\u6483\u904e\u7a0b\u3067PowerShell\u3092\u5b9f\u884c\u3067\u304d\u3066\u3044\u305f\u3053\u3068\u3082\u78ba\u8a8d\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u70b9\u3082ProxyShell\u306b\u4f3c\u3066\u3044\u307e\u3059\u3002\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u30a2\u30af\u30bb\u30b9\u306b\u6210\u529f\u3057\u305f\u3053\u306e\u653b\u6483\u8005\u306f\u3001Web\u30b7\u30a7\u30eb\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3001\u5f53\u8a72\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3078\u306e\u6301\u7d9a\u7684\u30a2\u30af\u30bb\u30b9\u3092\u5f97\u3066\u3044\u307e\u3057\u305f\u3002GTSC\u306f\u3053\u306e\u8106\u5f31\u6027\u3092\u30bc\u30ed\u30c7\u30a4 \u30a4\u30cb\u30b7\u30a2\u30c6\u30a3\u30d6(<a href=\"https:\/\/www.zerodayinitiative.com\/\">ZDI<\/a>)\u306b\u5831\u544a\u3057\u3001Microsoft\u3068\u306e\u9023\u643a\u3092\u9032\u3081\u3089\u308c\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u305f\u3002\u5f53\u8a72\u8106\u5f31\u6027\u306b\u306fCVE-2022-41040\u3001CVE-2022-41082\u304c\u5272\u308a\u5f53\u3066\u3089\u308c\u3066\u304a\u308a\u3001\u305d\u308c\u305e\u308c\u6df1\u523b\u5ea6(Severity)\u300c\u7dca\u6025(critical)\u300d\u3001\u300c\u91cd\u8981(important)\u300d\u3068\u8a55\u4fa1\u3055\u308c\u3066\u3044\u307e\u3059\u30021\u3064\u3081\u306eCVE-2022-41040\u306f\u30b5\u30fc\u30d0\u30fc\u30b5\u30a4\u30c9 \u30ea\u30af\u30a8\u30b9\u30c8 \u30d5\u30a9\u30fc\u30b8\u30a7\u30ea(SSRF)\u306e\u8106\u5f31\u6027\u3067\u3059\u30022\u3064\u3081\u306eCVE-2022-41082 \u306fExchange PowerShell\u306b\u653b\u6483\u8005\u304c\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u5834\u5408\u306b\u30ea\u30e2\u30fc\u30c8\u30b3\u30fc\u30c9\u5b9f\u884c(RCE)\u304c\u53ef\u80fd\u3068\u306a\u308b\u8106\u5f31\u6027\u3067\u3059\u3002<\/p>\n<p>\u8abf\u67fb\u4e2d\u306b\u767a\u898b\u3055\u308c\u305fWeb\u30b7\u30a7\u30eb\u3001\u30de\u30eb\u30a6\u30a7\u30a2\u89e3\u6790\u3001IoC(\u4fb5\u5bb3\u306e\u75d5\u8de1 indicators of compromise)\u3001\u30b3\u30de\u30f3\u30c9\u306e\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001GTSC\u306e\u3053\u3061\u3089\u306e\u3059\u3070\u3089\u3057\u3044<a href=\"https:\/\/gteltsc.vn\/blog\/warning-new-attack-campaign-utilized-a-new-0day-rce-vulnerability-on-microsoft-exchange-server-12715.html\">\u30d6\u30ed\u30b0<\/a>\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002Microsoft\u306f\u3053\u306e\u8106\u5f31\u6027\u304cMicrosoft Exchange Server 2013\u3001Exchange Server 2016\u3001Exchange Server 2019\u306b\u5f71\u97ff\u3059\u308b\u3068<a href=\"https:\/\/msrc-blog.microsoft.com\/2022\/09\/29\/customer-guidance-for-reported-zero-day-vulnerabilities-in-microsoft-exchange-server\/\">\u8aac\u660e<\/a>\u3057\u305f\u3046\u3048\u3067\u300cExchange Online has detections and mitigations to protect customers. As always, Microsoft is monitoring these detections for malicious activity and we\u2019ll respond accordingly if necessary to protect customers. (Exchange Online\u306b\u306f\u9867\u5ba2\u4fdd\u8b77\u306e\u305f\u3081\u306e\u691c\u51fa\u30fb\u7de9\u548c\u6a5f\u80fd\u304c\u3042\u308a\u307e\u3059\u3002\u79c1\u305f\u3061\u306f\u901a\u5e38\u901a\u308a\u3053\u308c\u3089\u691c\u51fa\u3055\u308c\u305f\u60aa\u8cea\u306a\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u3092\u76e3\u8996\u3057\u3066\u304a\u308a\u3001\u9867\u5ba2\u4fdd\u8b77\u306e\u4e0a\u3067\u5fc5\u8981\u306a\u63aa\u7f6e\u304c\u3042\u308c\u3070\u3057\u304b\u308b\u3079\u304f\u5bfe\u5fdc\u3057\u307e\u3059)\u300d\u3068\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2><a id=\"post-125265-_w1fcgztv64w8\"><\/a>\u73fe\u5728\u306e\u653b\u6483\u30b9\u30b3\u30fc\u30d7<\/h2>\n<p>\u3053\u306e\u653b\u6483\u306b\u306f\u88ab\u5bb3\u8005\u304c\u8907\u6570\u3044\u308b\u3088\u3046\u3067\u3059\u3002\u305f\u3060\u3057\u3001\u516c\u8868\u3055\u308c\u305f\u9650\u308a\u3067\u306f\u3001\u653b\u6483\u306f\u307e\u3060\u5b64\u767a\u7684\u3067\u3042\u308b\u3088\u3046\u3067\u3059\u3002GTSC\u306f\u540c\u793e\u306e\u30d6\u30ed\u30b0\u3067\u300cGTSC's direct incident response process recorded more than one organization being the victims of an attack campaign exploiting this 0-day vulnerability. (\u5f53\u793e\u304c\u76f4\u306b\u5bfe\u5fdc\u3057\u305f\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u5bfe\u5fdc\u30d7\u30ed\u30bb\u30b9\u3067\u306f\u3001\u5f53\u8a72\u30bc\u30ed\u30c7\u30a4\u8106\u5f31\u6027\u3092\u60aa\u7528\u3059\u308b\u653b\u6483\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u306b\u3088\u308b\u88ab\u5bb3\u7d44\u7e54\u304c\u8907\u6570\u8a18\u9332\u3055\u308c\u3066\u3044\u308b)\u300d\u3068\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>GTSC\u306e\u30d6\u30ed\u30b0\u306b\u547c\u5fdc\u3059\u308b\u81ea\u793e\u306e<a href=\"https:\/\/www.microsoft.com\/security\/blog\/2022\/09\/30\/analyzing-attacks-using-the-exchange-vulnerabilities-cve-2022-41040-and-cve-2022-41082\/\">\u30d6\u30ed\u30b0<\/a>\u3067Microsoft\u306f\u300cMSTIC observed activity related to a single activity group in August 2022 that achieved initial access and compromised Exchange servers by chaining CVE-2022-41040 and CVE-2022-41082 in a small number of targeted attacks. (MSTIC\u306f\u30012022\u5e748\u6708\u306b\u3001\u3042\u308b\u5358\u4e00\u306e\u653b\u6483\u30b0\u30eb\u30fc\u30d7\u306b\u95a2\u9023\u3059\u308b\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u3092\u89b3\u6e2c\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u306f\u5c11\u6570\u306e\u6a19\u7684\u578b\u653b\u6483\u306b\u304a\u3044\u3066CVE-2022-41040\u3068CVE-2022-41082\u3068\u3092\u9023\u9396\u3055\u305b\u3001\u305d\u308c\u306b\u3088\u308a\u521d\u671f\u30a2\u30af\u30bb\u30b9\u3092\u9054\u6210\u3057\u3066Exchange\u30b5\u30fc\u30d0\u30fc\u3092\u4fb5\u5bb3\u3059\u308b\u3082\u306e\u3067\u3057\u305f)\u300d\u3068\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>GTSC\u3068Microsoft\u304c\u89b3\u6e2c\u3057\u305f\u653b\u6483\u306f\u3044\u305a\u308c\u3082<a href=\"https:\/\/unit42.paloaltonetworks.jp\/china-chopper-webshell\/\">China Chopper Webhell<\/a>\u3092\u4f7f\u3063\u3066\u304a\u308a\u3001Microsoft\u306eMSTIC\u306f\u3001\u3053\u306e\u653b\u6483\u3092\u4e2d\u7a0b\u5ea6\u306e\u78ba\u5ea6\u3067\u3042\u308b1\u3064\u306e\u653b\u6483\u30b0\u30eb\u30fc\u30d7\u306b\u5e30\u5c5e\u3055\u305b\u3066\u3044\u307e\u3059\u3002\u653b\u6483\u306f\u307e\u3060\u5b64\u767a\u7684\u306b\u898b\u3048\u307e\u3059\u304c\u3001ProxyShell\u306e\u6b74\u53f2\u3084Exchange\u30b5\u30fc\u30d0\u30fc\u306e\u4fee\u6b63\u306e\u96e3\u3057\u3055\u304b\u3089\u3057\u3066\u3001\u3053\u306e\u8106\u5f31\u6027\u306f\u8105\u5a01\u30b0\u30eb\u30fc\u30d7\u304b\u3089\u5e83\u304f\u6ce8\u76ee\u3055\u308c\u308b\u3053\u3068\u306b\u306a\u308b\u3067\u3057\u3087\u3046\u3057\u3001\u6a5f\u80fd\u3059\u308b\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3084\u6982\u5ff5\u5b9f\u8a3c\u30b3\u30fc\u30c9(PoC)\u304c\u9060\u304b\u3089\u305a\u5229\u7528\u53ef\u80fd\u306b\u306a\u308a\u3001\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u304c\u5bb9\u6613\u306b\u306a\u308b\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u72b6\u6cc1\u3067\u306f\u3042\u308a\u307e\u3059\u304c\u3001Unit 42\u3067\u306f\u3053\u308c\u307e\u3067\u306e\u3068\u3053\u308d\u5f0a\u793e\u9867\u5ba2\u30c6\u30ec\u30e1\u30c8\u30ea\u3067\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u8a66\u884c\u306e\u75d5\u8de1\u3092\u307e\u3060\u78ba\u8a8d\u3057\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n<h2><a id=\"post-125265-_50343o6a6han\"><\/a>\u4e2d\u9593\u30ac\u30a4\u30c0\u30f3\u30b9<\/h2>\n<p>Microsoft\u306f\u3053\u308c\u3089\u306e\u8106\u5f31\u6027\u306b\u5bfe\u3059\u308b\u4fee\u6b63\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u307e\u3060\u516c\u958b\u3057\u3066\u3044\u307e\u305b\u3093\u304c\u3001\u305d\u306e\u9593\u306e<a href=\"https:\/\/msrc-blog.microsoft.com\/2022\/09\/29\/customer-guidance-for-reported-zero-day-vulnerabilities-in-microsoft-exchange-server\/\">\u7de9\u548c\u7b56<\/a>\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u7de9\u548c\u7b56\u3067\u306f\u3001URL Rewrite\u30eb\u30fc\u30eb\u3092\u4f7f\u3063\u3066\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u8a66\u884c\u3092\u8b58\u5225\u30fb\u30d6\u30ed\u30c3\u30af\u3057\u3001\u7ba1\u7406\u8005\u4ee5\u5916\u3078\u306e\u30ea\u30e2\u30fc\u30c8\u304b\u3089\u306ePowerShell\u30a2\u30af\u30bb\u30b9\u3092\u7121\u52b9\u5316\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>GTSC\u3082\u30d6\u30ed\u30b0\u3067\u540c\u69d8\u306e\u30ac\u30a4\u30c0\u30f3\u30b9\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002\u6a19\u7684\u306b\u306a\u3063\u305f\u304b\u3082\u3057\u308c\u306a\u3044\u5834\u5408\u3067IIS\u306e\u30ed\u30b0\u304c\u6b8b\u3063\u3066\u3044\u308b\u306e\u3067\u3042\u308c\u3070\u3001\u4ee5\u4e0b\u306ePowerShell\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066Exchange\u30b5\u30fc\u30d0\u30fc\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u8a66\u884c\u306e\u75d5\u8de1\u3092\u691c\u7d22\u3059\u308b\u3053\u3068\u3092<a href=\"https:\/\/gteltsc.vn\/blog\/warning-new-attack-campaign-utilized-a-new-0day-rce-vulnerability-on-microsoft-exchange-server-12715.html\">\u304a\u3059\u3059\u3081<\/a>\u3057\u307e\u3059\u3002<\/p>\n<p><!-- Crayon Syntax Highlighter v_2.7.2_beta --><\/p>\n<pre class=\"lang:default decode:true\">Get-ChildItem -Recurse -Path &lt;Path_IIS_Logs&gt; -Filter \"*.log\" | Select-String -Pattern 'powershell.*autodiscover\\.json.*\\@.*200'.<\/pre>\n<p><!-- [Format Time: 0.0003 seconds] --><\/p>\n<p>Cortex XDR\u3092\u3054\u5229\u7528\u306e\u304a\u5ba2\u69d8\u306f\u3001\u672c\u7a3f\u306e\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u306b\u8a18\u8f09\u3059\u308b\u30af\u30a8\u30ea\u3067\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306e\u75d5\u8de1\u3092\u691c\u7d22\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u30af\u30a8\u30ea\u306b\u306f\u3001certutil\u304b\u3089\u30d1\u30d6\u30ea\u30c3\u30afIP\u3078\u306e\u63a5\u7d9a\u306e\u8a3c\u62e0\u3001DLL\u3084EXE\u3092<span style=\"font-family: 'courier new', courier, monospace;\">C:\\Users\\Public\\<\/span>\u306b\u66f8\u304d\u8fbc\u3093\u3060\u8a3c\u62e0\u3001China Chopper Webhell\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u306e\u8a3c\u62e0\u3001Exchange\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3078\u306e\u7591\u308f\u3057\u3044\u30d5\u30a1\u30a4\u30eb\u306e\u8ffd\u52a0\u306e\u8a3c\u62e0\u306a\u3069\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2><a id=\"post-125265-_rbvlo3jl4fd6\"><\/a>Unit 42 \u30de\u30cd\u30fc\u30b8\u30c9 \u30b9\u30ec\u30c3\u30c8 \u30cf\u30f3\u30c6\u30a3\u30f3\u30b0 \u30c1\u30fc\u30e0\u306b\u3088\u308b\u30af\u30a8\u30ea<\/h2>\n<p>Unit 42 \u30de\u30cd\u30fc\u30b8\u30c9 \u30b9\u30ec\u30c3\u30c8 \u30cf\u30f3\u30c6\u30a3\u30f3\u30b0 \u30c1\u30fc\u30e0\u306f\u3001Cortex XDR\u3068\u4ee5\u4e0b\u306eXQL\u30af\u30a8\u30ea\u3092\u4f7f\u3044\u3001\u5f0a\u793e\u306e\u5168\u9867\u5ba2\u306b\u5bfe\u3057\u3001\u3053\u308c\u3089CVE\u306b\u3088\u308b\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u8a66\u884c\u3092\u7d99\u7d9a\u3057\u3066\u8ffd\u8de1\u3057\u3066\u3044\u307e\u3059\u3002Cortex XDR\u3092\u3054\u5229\u7528\u306e\u304a\u5ba2\u69d8\u3082\u4ee5\u4e0b\u306eXQL\u30af\u30a8\u30ea\u3067\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306e\u75d5\u8de1\u3092\u691c\u7d22\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><!-- Crayon Syntax Highlighter v_2.7.2_beta --><\/p>\n<pre class=\"lang:default decode:true\">\/\/ Description: Detect certutil netcons to public IP addresses. May be observed\r\n\/\/          \tpost-exploit in latest Exchange 0-day attacks for connection checks\r\n\r\nconfig case_sensitive = false\r\n| dataset = xdr_data\r\n| filter event_type = STORY and actor_process_image_name = \"certutil.exe\" and\r\nactor_process_image_command_line contains \":8080\"\r\n| comp count() by agent_hostname, actor_process_image_name, action_external_hostname,\r\naction_remote_ip, action_remote_port, actor_process_command_line\r\n\r\n\/\/ Filter out connections to private IP addresses\r\n|alter rfc1918_172 = incidr(action_remote_ip, \"172.16.0.0\/12\")\r\n|alter rfc1918_10 =  incidr(action_remote_ip, \"10.0.0.0\/8\")\r\n|alter rfc1918_192 = incidr(action_remote_ip, \"192.168.0.0\/16\")\r\n|filter rfc1918_172 = false and rfc1918_10 = false and rfc1918_192 = false\r\n| fields - rfc1918_10, rfc1918_172, rfc1918_192<\/pre>\n<p><!-- [Format Time: 0.0009 seconds] --><\/p>\n<p><!-- Crayon Syntax Highlighter v_2.7.2_beta --><\/p>\n<pre class=\"lang:default decode:true\">\/\/ Description: Detect DLL and EXE writes to Public folder (C:\\Users\\Public\\) on possible\r\n\/\/          \tExchange hosts. May be used post-exploit as part of latest Exchange 0-day attacks\r\n\r\nconfig case_sensitive = false\r\n| dataset = xdr_data\r\n| filter event_type = FILE and\r\n    \t(event_sub_type = ENUM.FILE_WRITE or event_sub_type = ENUM.FILE_CREATE_NEW) and\r\n    \taction_file_extension in (\"exe\", \"dll\") and\r\n    \taction_file_path contains \"C:\\Users\\Public\"\r\n| fields event_type, event_sub_type, agent_hostname, actor_effective_username, action_file_path,\r\naction_file_extension, actor_process_image_name, causality_actor_process_image_name\r\n\r\n\/\/ Show only results on possible Exchange hosts (w3wp.exe process is present)\r\n| join conflict_strategy = right type=inner\r\n\t(\r\n    \tdataset = xdr_data\r\n    \t| filter (event_type = PROCESS and actor_process_image_name = \"w3wp.exe\")\r\n    \t| comp count(event_timestamp) as w3wp_event_count by actor_process_image_name, agent_hostname\r\n    \t| fields agent_hostname\r\n\t) as w3wp_list w3wp_list.agent_hostname = agent_hostname<\/pre>\n<p><!-- [Format Time: 0.0012 seconds] --><\/p>\n<p><!-- Crayon Syntax Highlighter v_2.7.2_beta --><\/p>\n<pre class=\"lang:default decode:true\">\/\/ Detection of China Chopper webshell activity\r\n\r\nconfig case_sensitive = false\r\n| dataset = xdr_data \r\n| filter event_type = ENUM.PROCESS and actor_process_image_name = \"w3wp.exe\" and (action_process_image_command_line contains \"&amp;ipconfig&amp;echo\" or action_process_image_command_line contains \"&amp;quesr&amp;echo\" or action_process_image_command_line contains \"&amp;whoami&amp;echo\" or action_process_image_command_line contains \"&amp;c:&amp;echo\" or action_process_image_command_line contains \"&amp;cd&amp;echo\" or action_process_image_command_line contains \"&amp;echo [E]\" or action_process_image_command_line contains \"&amp;echo [S]\")\r\n| fields action_process_image_command_line , actor_process_image_path , actor_effective_username , agent_hostname<\/pre>\n<p><!-- [Format Time: 0.0009 seconds] --><\/p>\n<p><!-- Crayon Syntax Highlighter v_2.7.2_beta --><\/p>\n<pre class=\"lang:default decode:true\">\/\/ Detection Suspicious files in Exchange directories\r\n\r\n\r\nconfig case_sensitive = false timeframe = 30d\r\n| dataset = xdr_data \r\n| filter event_type = ENUM.FILE and actor_process_image_name = \"w3wp.exe\" and action_file_path contains \"FrontEnd\\HttpProxy\" and actor_process_command_line contains \"MSExchange\"\r\n| fields  actor_effective_username , agent_hostname , actor_process_command_line, action_file_path , action_file_sha256<\/pre>\n<p><!-- [Format Time: 0.0007 seconds] --><\/p>\n<h2><a id=\"post-125265-_rx7hmjhu7g8j\"><\/a>\u7d50\u8ad6<\/h2>\n<p>\u516c\u958b\u3055\u308c\u305f\u60c5\u5831\u304c\u591a\u304f\u3001\u60aa\u7528\u304c\u5bb9\u6613\u3067\u3001\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306e\u6709\u52b9\u6027\u304c\u304d\u308f\u3081\u3066\u9ad8\u3044\u3053\u3068\u304b\u3089\u3001Microsoft\u306b\u3088\u308b\u4fee\u6b63\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u516c\u958b\u3055\u308c\u308b\u307e\u3067\u306e\u3042\u3044\u3060\u3001\u540c\u793e\u306e\u30ac\u30a4\u30c0\u30f3\u30b9\u306b\u5f93\u3063\u3066\u7d44\u7e54\u3092\u4fdd\u8b77\u3059\u308b\u3053\u3068\u3092\u5f37\u304f\u63a8\u5968\u3057\u307e\u3059\u3002\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u3068Unit 42\u306f\u3001\u65b0\u305f\u306a\u60c5\u5831\u3001PoC(\u6982\u5ff5\u5b9f\u8a3c)\u30b3\u30fc\u30c9\u306e\u516c\u958b\u3001\u3088\u308a\u5e83\u7bc4\u306a\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306e\u8a3c\u62e0\u306b\u3064\u3044\u3066\u5f15\u304d\u7d9a\u304d\u72b6\u6cc1\u3092\u76e3\u8996\u3057\u307e\u3059\u3002<\/p>\n<p>\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306e\u304a\u5ba2\u69d8\u306f\u3055\u307e\u3056\u307e\u306a\u88fd\u54c1\u306e\u4fdd\u8b77\u3068\u66f4\u65b0\u3092\u6d3b\u7528\u3057\u3066\u540c\u8105\u5a01\u306e\u7279\u5b9a\u3068\u9632\u5fa1\u3092\u884c\u3048\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/www.paloaltonetworks.jp\/network-security\/next-generation-firewall\">\u6b21\u4e16\u4ee3\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb<\/a> (PA-Series\u3001VM-Series\u3001CN-Series)\u307e\u305f\u306f<a href=\"https:\/\/www.paloaltonetworks.jp\/network-security\/advanced-threat-prevention\">\u9ad8\u5ea6\u306a\u8105\u5a01\u9632\u5fa1<\/a>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u3092\u6709\u52b9\u5316\u3057\u305f<a href=\"https:\/\/www.paloaltonetworks.jp\/sase\/access\">Prisma Access<\/a>\u306f\u3001\u8105\u5a01ID 91368 (Application and Threat content update 8624)\u3067CVE-2022-41040\u306b\u95a2\u9023\u3059\u308b\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u81ea\u52d5\u7684\u306b\u30d6\u30ed\u30c3\u30af\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/www.paloaltonetworks.jp\/cortex\/cortex-xsoar\">Cortex XSOAR<\/a>\u306f\u3001ProxyNotShell CVE\u306b\u5bfe\u5fdc\u3059\u308b\u30ec\u30b9\u30dd\u30f3\u30b9 \u30d1\u30c3\u30af\u3068\u30d7\u30ec\u30a4\u30d6\u30c3\u30af\u3092\u516c\u958b\u3057\u3001\u7de9\u548c\u30d7\u30ed\u30bb\u30b9\u306e\u81ea\u52d5\u5316\u3001\u8fc5\u901f\u5316\u3092\u652f\u63f4\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u30d7\u30ec\u30a4\u30d6\u30c3\u30af\u306f\u4ee5\u4e0b\u306e\u30bf\u30b9\u30af\u3092\u81ea\u52d5\u5316\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>Microsoft\u306e\u7de9\u548c\u30c4\u30fc\u30eb\u3001\u691c\u51fa\u30eb\u30fc\u30eb\u3001Microsoft Global Technical Support Center (GTSC)\u306b\u3088\u308b\u30a4\u30f3\u30b8\u30b1\u30fc\u30bf(\u6307\u6a19)\u306e\u53ce\u96c6<\/li>\n<li>\u3053\u308c\u3089\u306e\u30a4\u30f3\u30b8\u30b1\u30fc\u30bf\u306e\u62bd\u51fa\u3068\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u3078\u306e\u30bf\u30b0\u4ed8\u3051<\/li>\n<li>Cortex XDR-XQL\u30af\u30a8\u30ea\u3092\u4f7f\u7528\u3057\u305f\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8 \u30d1\u30bf\u30fc\u30f3\u306e\u30cf\u30f3\u30c8(\u63a2\u7d22)<\/li>\n<li>\u4ee5\u4e0b\u306eSIEM\u88fd\u54c1\u3092\u4f7f\u3063\u305f\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8 \u30d1\u30bf\u30fc\u30f3\u306e\u30cf\u30f3\u30c8:\n<ul>\n<li>Azure Sentinel<\/li>\n<li>Splunk<\/li>\n<li>QRadar<\/li>\n<li>Elasticsearch<\/li>\n<\/ul>\n<\/li>\n<li>PAN-OS\u3001Splunk\u3001QRadar\u306b\u3088\u308b\u30a4\u30f3\u30b8\u30b1\u30fc\u30bf\u306e\u30cf\u30f3\u30c8<\/li>\n<li>\u691c\u51fa\u30eb\u30fc\u30eb\u306e\u5c0e\u5165\u3084\u63a8\u5968\u56de\u907f\u7b56\u306a\u3069\u306e\u7de9\u548c\u30a2\u30af\u30b7\u30e7\u30f3<\/li>\n<\/ul>\n<figure id=\"attachment_125272\" aria-describedby=\"caption-attachment-125272\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-125273 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/10\/word-image-2.png\" alt=\"ProxyNotShell Cortex XSOAR\u30d7\u30ec\u30a4\u30d6\u30c3\u30af\u306e\u4e00\u90e8\u3002\u30a4\u30f3\u30b8\u30b1\u30fc\u30bf\u3068\u30eb\u30fc\u30eb\u306e\u53ce\u96c6\u30fb\u62bd\u51fa\u3092\u56f3\u89e3\u3057\u305f\u3082\u306e\" width=\"900\" height=\"466\" \/><figcaption id=\"caption-attachment-125272\" class=\"wp-caption-text\">\u56f31. \u30d7\u30ec\u30a4\u30d6\u30c3\u30af\u3088\u308a\u629c\u7c8b (\u30a4\u30f3\u30b8\u30b1\u30fc\u30bf\u3068\u30eb\u30fc\u30eb\u306e\u53ce\u96c6\u30fb\u62bd\u51fa)<\/figcaption><\/figure>\n<figure id=\"attachment_125274\" aria-describedby=\"caption-attachment-125274\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-125275 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/10\/word-image-3.png\" alt=\"ProxyNotShell Cortex XSOAR\u30d7\u30ec\u30a4\u30d6\u30c3\u30af\u306e\u4e00\u90e8\u3002SIEM\u306e\u8105\u5a01\u30cf\u30f3\u30c8\u3092\u56f3\u89e3\u3057\u305f\u3082\u306e\" width=\"900\" height=\"419\" \/><figcaption id=\"caption-attachment-125274\" class=\"wp-caption-text\">\u56f32 \u30d7\u30ec\u30a4\u30d6\u30c3\u30af\u3088\u308a\u629c\u7c8b (SIEM\u306b\u3088\u308b\u8105\u5a01\u30cf\u30f3\u30c8)<\/figcaption><\/figure>\n<figure id=\"attachment_125276\" aria-describedby=\"caption-attachment-125276\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-125277 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/10\/word-image-4.png\" alt=\"ProxyNotShell Cortex XSOAR\u30d7\u30ec\u30a4\u30d6\u30c3\u30af\u306e\u4e00\u90e8\u3002Cortex XDR\u306eXQL\u30af\u30a8\u30ea\u306b\u3088\u308b\u8105\u5a01\u30cf\u30f3\u30c8\u3092\u56f3\u89e3\u3057\u305f\u3082\u306e\" width=\"900\" height=\"357\" \/><figcaption id=\"caption-attachment-125276\" class=\"wp-caption-text\">\u56f33. \u30d7\u30ec\u30a4\u30d6\u30c3\u30af\u3088\u308a\u629c\u7c8b (Cortex XDR\u306eXQL\u30af\u30a8\u30ea\u306b\u3088\u308b\u8105\u5a01\u30cf\u30f3\u30c8)<\/figcaption><\/figure>\n<p>\u30ec\u30b9\u30dd\u30f3\u30b9 \u30d1\u30c3\u30af\u306e\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001Cortex XSOAR\u306e<a href=\"https:\/\/cortex.marketplace.pan.dev\/marketplace\/details\/CVE_2022_41040_and_CVE_2022_41082__ProxyNotShell\/\">CVE-2022-41040 &amp; CVE-2022-41082 - ProxyNotShell<\/a>\u306e\u30da\u30fc\u30b8\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u305d\u306e\u307b\u304b\u306eCortex XSOAR\u30ec\u30b9\u30dd\u30f3\u30b9 \u30d1\u30c3\u30af\u3084\u30d7\u30ec\u30a4\u30d6\u30c3\u30af\u306b\u3064\u3044\u3066\u306f\u3001 <a href=\"https:\/\/xsoar.pan.dev\/docs\/reference\/index\">Cortex XSOAR Developer Docs<\/a>\u306e\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u30da\u30fc\u30b8\u304b\u3089\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><a href=\"https:\/\/www.paloaltonetworks.jp\/cortex\/cortex-xpanse\">Cortex Xpanse<\/a>\u306b\u306f\u3001\u304a\u5ba2\u69d8\u74b0\u5883\u306e\u653b\u6483\u5bfe\u8c61\u9818\u57df\u306a\u3044\u3057\u304a\u5ba2\u69d8\u7d44\u7e54\u306b\u63a5\u7d9a\u3057\u3066\u3044\u308b\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u30d1\u30fc\u30c8\u30ca\u30fc\u306e\u653b\u6483\u5bfe\u8c61\u9818\u57df\u3068\u306a\u308a\u3046\u308bMicrosoft Exchange\u30b5\u30fc\u30d0\u30fc\u3092\u7279\u5b9a\u30fb\u691c\u51fa\u3059\u308b\u6a5f\u80fd\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u30d0\u30fc\u30b8\u30e7\u30f37.7(\u30b3\u30f3\u30c6\u30f3\u30c4\u30d0\u30fc\u30b8\u30e7\u30f3710-19877\u307e\u305f\u306f\u305d\u308c\u4ee5\u964d)\u3067\u52d5\u4f5c\u3059\u308b<a href=\"https:\/\/www.paloaltonetworks.jp\/cortex\/cortex-xdr\">Cortex XDR<\/a>\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306f\u3001\u5f0a\u793e\u304c\u78ba\u8a8d\u3057\u305f\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8 \u30c1\u30a7\u30fc\u30f3\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u8a66\u884c\u3092\u5831\u544a\u3057\u307e\u3059\u3002<\/p>\n<p>\u78ba\u5b9f\u306b\u30a2\u30e9\u30fc\u30c8\u3092\u53d7\u4fe1\u3057\u3001\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u8a66\u884c\u3092\u76e3\u8996\u3059\u308b\u306b\u306f\u4ee5\u4e0b\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>Cortex XDR\u306e\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u304c7.7(\u307e\u305f\u306f\u305d\u308c\u4ee5\u964d)\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b<\/li>\n<li>\u4f7f\u7528\u4e2d\u306e\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u304c\u30b3\u30f3\u30c6\u30f3\u30c4\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8710-19877(\u307e\u305f\u306f\u305d\u308c\u4ee5\u964d)\u3092\u4f7f\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b<\/li>\n<li>\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306e\u30cf\u30fc\u30c8\u30d3\u30fc\u30c8\u3092\u5b9f\u884c\u3059\u308b<\/li>\n<li>Microsoft Internet Information Services(IIS)\u3092iisreset\u30b3\u30de\u30f3\u30c9\u3067\u518d\u8d77\u52d5\u3059\u308b<\/li>\n<\/ul>\n<p>Cortex XDR\u3092\u3054\u5229\u7528\u4e2d\u306e\u304a\u5ba2\u69d8\u306b\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u8a66\u884c\u3092\u901a\u77e5\u3059\u308b\u65b0\u305f\u306aBTP(\u632f\u308b\u821e\u3044\u8105\u5a01\u9632\u5fa1)\u30eb\u30fc\u30eb\u304c\u8ffd\u52a0\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<p><em>\u3053\u306e\u30a2\u30e9\u30fc\u30c8\u306f<\/em><a href=\"https:\/\/docs.paloaltonetworks.com\/cortex\/cortex-xdr\/cortex-xdr-pro-admin\/endpoint-security\/customizable-agent-settings\/global-agent-configurations\"><em>\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306e [Informative BTP Alerts]\u8a2d\u5b9a\u304c\u6709\u52b9\u304b\u7121\u52b9\u304b\u306b\u4f9d\u5b58\u3057\u30662\u3064\u306e\u5f62\u5f0f\u3067\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/em><\/a><\/p>\n<table>\n<tbody>\n<tr>\n<td><\/td>\n<td><b>\u30a2\u30e9\u30fc\u30c8\u540d<\/b><\/td>\n<td><b>\u30a2\u30e9\u30fc\u30c8\u306e\u8aac\u660e<\/b><\/td>\n<\/tr>\n<tr>\n<td><b><i>[Informative BTP Alerts]\u304c\u6709\u52b9\u306e\u5834\u5408\u00a0<\/i><\/b><\/td>\n<td><span style=\"font-weight: 400;\">Webserver Exploitation - 286099623<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Exchange ProxyNotShell CVE-2022-41040 variant - Behavioral threat detected (rule: bioc.sync.exchange_proxynotshell_cve_2022_41040)<\/span><\/td>\n<\/tr>\n<tr>\n<td><b><i>[Informative BTP Alerts]\u304c\u7121\u52b9\u306e\u5834\u5408<\/i><\/b><\/td>\n<td><span style=\"font-weight: 400;\">Behavioral Threat Detected<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Behavioral threat detected (rule: bioc.sync.exchange_proxynotshell_cve_2022_41040)<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Cortex XDR\u306e\u591a\u5c64\u9632\u5fa1\u30a2\u30d7\u30ed\u30fc\u30c1\u306e\u4e00\u74b0\u3068\u3057\u3066\u3001\u65e2\u5b58\u306e\u632f\u308b\u821e\u3044\u8105\u5a01\u9632\u5fa1\u30eb\u30fc\u30eb\u3067\u3082Microsoft Exchange\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u306e\u60aa\u6027Web\u30b7\u30a7\u30eb\u306e\u30c9\u30ed\u30c3\u30d7\u3092\u691c\u77e5\u30fb\u906e\u65ad\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30eb\u30fc\u30eb\u306f\u3001\u4e0a\u8a18\u30eb\u30fc\u30eb\u304c\u8fd1\u3044\u5c06\u6765\u30d6\u30ed\u30c3\u30af\u30e2\u30fc\u30c9\u306b\u79fb\u884c\u3059\u308b\u307e\u3067\u6709\u52b9\u3068\u306a\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<p><a href=\"https:\/\/www.paloaltonetworks.jp\/network-security\/advanced-url-filtering\">\u9ad8\u5ea6\u306aURL\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0<\/a>\u3068\u88fd\u54c1\u306b\u7d44\u307f\u8fbc\u307f\u306e<a href=\"https:\/\/docs.paloaltonetworks.com\/pan-os\/9-1\/pan-os-admin\/policy\/use-an-external-dynamic-list-in-policy\/built-in-edls\">\u5916\u90e8\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u30ea\u30b9\u30c8<\/a>\u306b\u306f\u60aa\u610f\u306e\u3042\u308bURL\u3068IP\u3092\u8ffd\u52a0\u6e08\u307f\u3067\u3059\u3002<\/p>\n<p><span style=\"font-weight: 400;\">Prisma Cloud <\/span>\u306e<a href=\"https:\/\/docs.paloaltonetworks.com\/prisma\/prisma-cloud\/prisma-cloud-admin-compute\/waas\">Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3068API\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3(WAAS)<\/a>\u3092\u3054\u5229\u7528\u4e2d\u306e\u304a\u5ba2\u69d8\u306f\u30ab\u30b9\u30bf\u30e0\u30eb\u30fc\u30eb\u300cProxyShell\u300d\u306b\u3088\u308a\u672c\u8105\u5a01\u304b\u3089\u306e\u4fdd\u8b77\u3092\u53d7\u3051\u3089\u308c\u307e\u3059\u3002<\/p>\n<p>\u4fb5\u5bb3\u306e\u61f8\u5ff5\u304c\u3042\u308a\u5f0a\u793e\u306b\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u30ec\u30b9\u30dd\u30f3\u30b9\u306b\u95a2\u3059\u308b\u3054\u76f8\u8ac7\u3092\u306a\u3055\u308a\u305f\u3044\u5834\u5408\u306f\u3001<a href=\"https:\/\/start.paloaltonetworks.jp\/contact-unit42.html\">infojapan@paloaltonetworks.com<\/a> \u307e\u3067\u96fb\u5b50\u30e1\u30fc\u30eb\u306b\u3066\u3054\u9023\u7d61\u3044\u305f\u3060\u304f\u304b\u3001\u4e0b\u8a18\u306e\u96fb\u8a71\u756a\u53f7\u307e\u3067\u304a\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044(\u3054\u76f8\u8ac7\u306f\u5f0a\u793e\u88fd\u54c1\u306e\u304a\u5ba2\u69d8\u306b\u306f\u9650\u5b9a\u3055\u308c\u307e\u305b\u3093)\u3002<\/p>\n<ul>\n<li>\u5317\u7c73\u30d5\u30ea\u30fc\u30c0\u30a4\u30e4\u30eb: 866.486.4842 (866.4.UNIT42)<\/li>\n<li>\u6b27\u5dde: +31.20.299.3130<\/li>\n<li>\u30a2\u30b8\u30a2\u592a\u5e73\u6d0b: +65.6983.8730<\/li>\n<li>\u65e5\u672c: +81.50.1790.0200<\/li>\n<\/ul>\n<p>\u3055\u3089\u306a\u308b\u60c5\u5831\u307e\u305f\u306f\u691c\u51fa\u304c\u884c\u308f\u308c\u305f\u5834\u5408\u3001\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306f\u672c\u66f8\u3092\u9069\u5b9c\u66f4\u65b0\u3057\u307e\u3059\u3002<\/p>\n<p><em>2022-10-07 08:40 JST \u82f1\u8a9e\u7248\u66f4\u65b0\u65e5 2022-10-06 09:30 PDT 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