{"id":130992,"date":"2023-11-01T18:41:21","date_gmt":"2023-11-02T01:41:21","guid":{"rendered":"https:\/\/unit42.paloaltonetworks.com\/?p=130992"},"modified":"2024-06-17T23:25:54","modified_gmt":"2024-06-18T06:25:54","slug":"threat-brief-cve-2023-4966-netscaler-citrix-bleed","status":"publish","type":"post","link":"https:\/\/unit42.paloaltonetworks.com\/ja\/threat-brief-cve-2023-4966-netscaler-citrix-bleed\/","title":{"rendered":"\u8105\u5a01\u306b\u95a2\u3059\u308b\u60c5\u5831: Citrix Bleed CVE-2023-4966"},"content":{"rendered":"<h2><a id=\"post-130992-_4lt92rr5muov\"><\/a>\u6982\u8981<\/h2>\n<p>2023 \u5e74 10 \u6708 10 \u65e5\u3001Citrix \u306f Netscaler ADC \u304a\u3088\u3073 Netscaler Gateway \u88fd\u54c1\u5411\u3051\u306e<a href=\"https:\/\/support.citrix.com\/article\/CTX579459\/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20234966-and-cve20234967\" target=\"_blank\" rel=\"noopener\">\u30d1\u30c3\u30c1<\/a>\u3092\u516c\u958b\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u30d1\u30c3\u30c1\u306b\u3088\u308a\u7de9\u548c\u3055\u308c\u308b\u3053\u3068\u306b\u306a\u308b\u7279\u5b9a\u8106\u5f31\u6027\u306e 1 \u3064\u306f Citrix Bleed \u3068\u3044\u3046\u540d\u524d\u3067\u77e5\u3089\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f (<a href=\"https:\/\/cve.mitre.org\/cgi-bin\/cvename.cgi?name=CVE-2023-4966\" target=\"_blank\" rel=\"noopener\">CVE-2023-4966<\/a>)\u3002<\/p>\n<p>\u3053\u306e\u30cb\u30c3\u30af\u30cd\u30fc\u30e0\u306f\u3001\u3053\u306e\u8106\u5f31\u6027\u306b\u3088\u3063\u3066\u30c7\u30d0\u30a4\u30b9\u306e\u30e1\u30e2\u30ea\u30fc\u304b\u3089\u30bb\u30c3\u30b7\u30e7\u30f3 \u30c8\u30fc\u30af\u30f3\u3092\u542b\u3080\u6a5f\u5fae\u60c5\u5831\u304c\u6f0f\u3048\u3044\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3053\u3068\u304b\u3089\u4ed8\u3051\u3089\u308c\u305f\u3082\u306e\u3067\u3059\u3002\u653b\u6483\u8005\u306f\u3053\u308c\u3089\u306e\u30af\u30ec\u30c7\u30f3\u30b7\u30e3\u30eb (\u8cc7\u683c\u60c5\u5831) \u3092\u4f7f\u3044\u3001\u30bb\u30c3\u30b7\u30e7\u30f3 \u30cf\u30a4\u30b8\u30e3\u30c3\u30af\u3092\u901a\u3058\u3066\u30b7\u30b9\u30c6\u30e0\u3078\u306e\u8db3\u304c\u304b\u308a\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30d1\u30c3\u30c1\u516c\u958b\u6642\u70b9\u3067 Citrix \u306f\u3053\u306e\u8106\u5f31\u6027\u3092\u5229\u7528\u3059\u308b\u9032\u884c\u4e2d\u306e\u653b\u6483\u3092\u8a8d\u8b58\u3057\u3066\u3044\u307e\u305b\u3093\u3067\u3057\u305f\u304c\u3001<a href=\"https:\/\/www.netscaler.com\/blog\/news\/cve-2023-4966-critical-security-update-now-available-for-netscaler-adc-and-netscaler-gateway\/\" target=\"_blank\" rel=\"noopener\">\u516c\u958b\u4ee5\u964d<\/a>\u3001\u8105\u5a01\u30a2\u30af\u30bf\u30fc\u306b\u3088\u308b\u5229\u7528\u304c\u89b3\u6e2c\u3055\u308c\u3066\u3044\u308b\u3068\u306e\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>Unit 42 \u306e\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8 \u30ec\u30b9\u30dd\u30f3\u30b9 \u30c1\u30fc\u30e0\u3068\u30de\u30cd\u30fc\u30b8\u30c9 \u30b9\u30ec\u30c3\u30c8 \u30cf\u30f3\u30c6\u30a3\u30f3\u30b0 \u30c1\u30fc\u30e0\u306f\u3001Citrix Bleed \u3092\u60aa\u7528\u3059\u308b\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u653b\u6483\u30b0\u30eb\u30fc\u30d7\u3092\u89b3\u6e2c\u3057\u3066\u3044\u307e\u3059\u3002\u30de\u30cd\u30fc\u30b8\u30c9 \u30b9\u30ec\u30c3\u30c8 \u30cf\u30f3\u30c6\u30a3\u30f3\u30b0 \u30c1\u30fc\u30e0\u306f\u3001\u3053\u306e\u8106\u5f31\u6027\u306e\u60aa\u7528\u306b\u95a2\u9023\u3057\u3001Netscaler \u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u304b\u3089\u306e\u30ea\u30e2\u30fc\u30c8\u5b9f\u884c\u3068\u601d\u308f\u308c\u308b\u3082\u306e\u3082\u89b3\u6e2c\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u5f0a\u793e\u306e\u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u306f\u3001Cortex Xpanse \u30c7\u30d0\u30a4\u30b9\u306e\u30b7\u30b0\u30cd\u30c1\u30e3\u30fc \u30c7\u30fc\u30bf\u3092\u4f7f\u3044\u3001\u8106\u5f31\u306a\u30d0\u30fc\u30b8\u30e7\u30f3\u306e NetScaler Gateway \u3092\u30a2\u30c9\u30d0\u30bf\u30a4\u30ba\u3059\u308b\u7d04 8,000 \u53f0\u5206\u306e IP \u30a2\u30c9\u30ec\u30b9\u3068\u3001NetScaler ADC \u30c7\u30d0\u30a4\u30b9\u3092\u30a2\u30c9\u30d0\u30bf\u30a4\u30ba\u3059\u308b 6,000 \u53f0\u5206\u306e IP \u3092\u89b3\u6e2c\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30c7\u30d0\u30a4\u30b9\u306e\u6240\u5728\u56fd\u306f\u3001\u6700\u5927 (3,100 \u53f0) \u304c\u7c73\u56fd\u3001800 \u53f0\u304c\u30c9\u30a4\u30c4\u3001450 \u53f0\u304c\u4e2d\u56fd\u3001400 \u53f0\u304c\u82f1\u56fd\u3067\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\u3067 CVE-2023-4966 \u306e\u8106\u5f31\u6027\u306b\u5bfe\u3059\u308b<a href=\"#post-130992-_lqzcx8cug942\">\u4fdd\u8b77\u3068\u7de9\u548c<\/a>\u3092\u53d7\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li><a href=\"https:\/\/start.paloaltonetworks.jp\/contact-unit42.html\" target=\"_blank\" rel=\"noopener\">Unit 42 \u30a4\u30f3\u30b7\u30c7\u30f3\u30c8 \u30ec\u30b9\u30dd\u30f3\u30b9 \u30c1\u30fc\u30e0<\/a>\u306f\u3001\u672c\u7a3f\u3067\u53d6\u308a\u4e0a\u3052\u305f\u8105\u5a01\u3092\u306f\u3058\u3081\u3001\u3055\u307e\u3056\u307e\u306a\u8105\u5a01\u3078\u306e\u500b\u5225\u5bfe\u5fdc\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<li>\u304a\u5ba2\u69d8\u306e\u30a4\u30f3\u30d5\u30e9\u5185\u306b\u96a0\u3055\u308c\u305f\u540c\u8105\u5a01\u3092\u306f\u3058\u3081\u3001\u3055\u307e\u3056\u307e\u306a\u8105\u5a01\u306e\u7d99\u7d9a\u7684\u30cf\u30f3\u30c8\u306b\u306f\u3001<a href=\"https:\/\/www.paloaltonetworks.com\/resources\/techbriefs\/cortex-xdr-managed-threat-hunting\" target=\"_blank\" rel=\"noopener\">Unit 42 \u30de\u30cd\u30fc\u30b8\u30c9 \u30b9\u30ec\u30c3\u30c8 \u30cf\u30f3\u30c6\u30a3\u30f3\u30b0<\/a> \u30c1\u30fc\u30e0\u3092\u3054\u7528\u547d\u3044\u305f\u3060\u3051\u307e\u3059\u3002<\/li>\n<li><a href=\"https:\/\/docs.paloaltonetworks.com\/advanced-threat-prevention\" target=\"_blank\" rel=\"noopener\">Advanced Threat Prevention<\/a> \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u3092\u6709\u52b9\u306b\u3057\u3001\u30d9\u30b9\u30c8 \u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306b\u5f93\u3063\u3066\u3044\u308b<a href=\"https:\/\/docs.paloaltonetworks.com\/ngfw\" target=\"_blank\" rel=\"noopener\">\u6b21\u4e16\u4ee3\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u88fd\u54c1<\/a>\u306f\u653b\u6483\u9632\u6b62\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/li>\n<li><a href=\"https:\/\/docs.paloaltonetworks.com\/wildfire\" target=\"_blank\" rel=\"noopener\">Advanced WildFire<\/a> \u306f\u3053\u306e\u65b0\u305f\u306a Citrix Bleed \u3092\u8e0f\u307e\u3048\u3001\u6a5f\u68b0\u5b66\u7fd2\u30e2\u30c7\u30eb\u3068\u5206\u6790\u624b\u6cd5\u306e\u898b\u76f4\u3057\u3068\u66f4\u65b0\u3092\u884c\u3044\u307e\u3057\u305f\u3002<\/li>\n<li><a href=\"https:\/\/www.paloaltonetworks.jp\/cortex\/cortex-xpanse\" target=\"_blank\" rel=\"noopener\">Cortex Xpanse<\/a> \u306f\u3001CVE-2023-4966 \u306b\u5bfe\u3059\u308b\u65b0\u3057\u3044 Threat Response Event \u3092\u516c\u958b\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u306f\u3001\u5916\u90e8\u306b\u9732\u51fa\u3057\u3066\u3057\u307e\u3063\u3066\u3044\u308b\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u7279\u5b9a\u3084\u3001\u65e2\u77e5\u306e\u5b89\u5168\u3067\u306a\u3044\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u7a3c\u50cd\u3057\u3066\u3044\u308b\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u7279\u5b9a\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/li>\n<li><a href=\"https:\/\/docs-cortex.paloaltonetworks.com\/p\/XDR\" target=\"_blank\" rel=\"noopener\">Cortex XDR<\/a> \u3068 <a href=\"https:\/\/docs-cortex.paloaltonetworks.com\/p\/XSIAM\" target=\"_blank\" rel=\"noopener\">Cortex XSIAM<\/a> \u306f\u3001\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u5f8c\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u3092\u691c\u51fa\u3057\u3066\u4fdd\u8b77\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/li>\n<\/ul>\n<p>\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306f Citrix \u304c\u63d0\u4f9b\u3059\u308b\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2 \u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306b\u3088\u308a\u3001\u672c\u8106\u5f31\u6027\u304a\u3088\u3073 CVE-2023-4967 \u306b\u5bfe\u3059\u308b\u30d1\u30c3\u30c1\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3082\u63a8\u5968\u3057\u307e\u3059\u3002<\/p>\n<table style=\"width: 100%;\">\n<thead>\n<tr>\n<td style=\"width: 35%;\"><b>\u672c\u7a3f\u3067\u6271\u3046\u8106\u5f31\u6027<\/b><\/td>\n<td style=\"width: 100%;\"><a href=\"https:\/\/unit42.paloaltonetworks.jp\/tag\/cve-2023-4966-ja\/\" target=\"_blank\" rel=\"noopener\"><b>CVE-2023-4966<\/b><\/a><\/td>\n<\/tr>\n<\/thead>\n<\/table>\n<h2><a id=\"post-130992-_wven14kmgum2\"><\/a>\u8106\u5f31\u6027\u306e\u8a73\u7d30<\/h2>\n<p>Citrix Bleed (<a href=\"https:\/\/cve.mitre.org\/cgi-bin\/cvename.cgi?name=CVE-2023-4966\" target=\"_blank\" rel=\"noopener\">CVE-2023-4966<\/a>) \u306f\u6a5f\u5fae\u60c5\u5831\u6f0f\u3048\u3044\u306e\u8106\u5f31\u6027\u3067\u3001Citrix Netscaler Gateway \u304a\u3088\u3073 Netscaler ADC \u88fd\u54c1\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002CVSS \u30b9\u30b3\u30a2 \u306f 9.4 \u3067\u3059\u3002\u672c\u8106\u5f31\u6027\u306f\u30012023 \u5e74 10 \u6708 10 \u65e5\u306b Citrix \u306b\u3088\u308a<a href=\"https:\/\/support.citrix.com\/article\/CTX579459\/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20234966-and-cve20234967\" target=\"_blank\" rel=\"noopener\">\u4fee\u6b63\u3055\u308c\u3066\u3044\u307e\u3059<\/a>\u3002<\/p>\n<p>\u3053\u306e\u8106\u5f31\u6027\u306b\u3088\u308a\u3001\u8a8d\u8a3c\u3055\u308c\u3066\u3044\u306a\u3044\u653b\u6483\u8005\u304c\u3001\u7279\u5225\u306b\u7d30\u5de5\u3057\u305f\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u7d4c\u7531\u3057\u3066\u30bb\u30c3\u30b7\u30e7\u30f3 \u30c8\u30fc\u30af\u30f3\u3092\u76d7\u307f\u3001\u8106\u5f31\u306a\u30b7\u30b9\u30c6\u30e0\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4f1a\u793e\u306e <a href=\"https:\/\/www.assetnote.io\/resources\/research\/citrix-bleed-leaking-session-tokens-with-cve-2023-4966\" target=\"_blank\" rel=\"noopener\">Assetnote<\/a> \u304c\u3001\u5177\u4f53\u7684\u306a\u8a73\u7d30\u3068\u3001\u3053\u306e\u8106\u5f31\u6027\u3092\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3059\u308b\u6982\u5ff5\u5b9f\u8a3c (PoC) <a href=\"https:\/\/github.com\/assetnote\/exploits\/tree\/main\/citrix\/CVE-2023-4966\" target=\"_blank\" rel=\"noopener\">\u30b3\u30fc\u30c9<\/a>\u3092\u516c\u958b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>Citrix \u306f\u3001\u6b21\u306e\u88fd\u54c1\u304c\u3053\u306e\u8106\u5f31\u6027\u306e\u5f71\u97ff\u3092\u53d7\u3051\u308b\u3068\u5831\u544a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li>NetScaler ADC \u304a\u3088\u3073 NetScaler Gateway 14.1 (14.1-8.50 \u3088\u308a\u524d)<\/li>\n<li>NetScaler ADC \u304a\u3088\u3073 NetScaler Gateway 13.1 (13.1-49.15 \u3088\u308a\u524d)<\/li>\n<li>NetScaler ADC \u304a\u3088\u3073 NetScaler Gateway 13.0 (13.0-92.19 \u3088\u308a\u524d)<\/li>\n<li>NetScaler ADC 13.1-FIPS (13.1-37.164 \u3088\u308a\u524d)<\/li>\n<li>NetScaler ADC 12.1-FIPS (12.1-55.300 \u3088\u308a\u524d)<\/li>\n<li>NetScaler ADC 12.1-NDcPP (12.1-55.300 \u3088\u308a\u524d)<\/li>\n<\/ul>\n<p>CVE-2023-4966 \u306f\u6700\u8fd1\u3001<a href=\"https:\/\/www.cisa.gov\/news-events\/alerts\/2023\/10\/19\/cisa-adds-two-known-exploited-vulnerabilities-catalog\" target=\"_blank\" rel=\"noopener\">CISA \u306b\u3088\u308b Known Exploited Vulnerabilities Catalog \u306b\u3082\u8ffd\u52a0\u3055\u308c\u307e\u3057\u305f<\/a>\u3002\u3053\u306e\u30ab\u30bf\u30ed\u30b0\u306b\u306f\u3001\u653b\u6483\u30d9\u30af\u30c8\u30eb\u3068\u3057\u3066\u983b\u7528\u3055\u308c\u3066\u3044\u308b\u65e2\u77e5\u306e\u8106\u5f31\u6027\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2><a id=\"post-130992-_50343o6a6han\"><\/a>\u73fe\u5728\u306e\u653b\u6483\u30b9\u30b3\u30fc\u30d7<\/h2>\n<p>CVE-2023-4966 \u306e\u30d1\u30c3\u30c1\u516c\u958b\u6642\u3001Citrix \u306f\u300c\u672c\u8106\u5f31\u6027\u306f\u5185\u90e8\u3067\u767a\u898b\u3055\u308c\u305f\u3082\u306e\u3067\u3001\u3053\u308c\u3092\u6a19\u7684\u3068\u3059\u308b\u653b\u6483\u306f\u8a8d\u8b58\u3055\u308c\u3066\u3044\u306a\u3044\u300d\u3068\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u306a\u304c\u3089\u305d\u306e\u5f8c\u540c\u793e\u306f<a href=\"https:\/\/www.netscaler.com\/blog\/news\/cve-2023-4966-critical-security-update-now-available-for-netscaler-adc-and-netscaler-gateway\/\" target=\"_blank\" rel=\"noopener\">\u3053\u306e\u516c\u958b\u4ee5\u5f8c<\/a>\u3001\u540c\u8106\u5f31\u6027\u3092\u5229\u7528\u3057\u305f\u30bb\u30c3\u30b7\u30e7\u30f3 \u30cf\u30a4\u30b8\u30e3\u30c3\u30af\u304c\u884c\u308f\u308c\u305f\u3068\u3044\u3046\u5831\u544a\u3092\u53d7\u3051\u305f\u3068\u8ff0\u3079\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3092\u53d7\u3051\u3001\u540c\u793e\u306f\u5f71\u97ff\u3092\u53d7\u3051\u308b\u30c7\u30d0\u30a4\u30b9\u306b\u305f\u3060\u3061\u306b\u30d1\u30c3\u30c1\u3092\u9069\u7528\u3059\u308b\u3088\u3046\u52e7\u544a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u8106\u5f31\u6027\u3092\u4f7f\u3063\u3066\u30bb\u30c3\u30b7\u30e7\u30f3 \u30c8\u30fc\u30af\u30f3\u3092\u30cf\u30a4\u30b8\u30e3\u30c3\u30af\u3057\u3001\u30a2\u30af\u30bb\u30b9\u3092\u53d6\u5f97\u3057\u3066\u3044\u308b<a href=\"https:\/\/www.helpnetsecurity.com\/2023\/10\/30\/cve-2023-4966-exploited\/\" target=\"_blank\" rel=\"noopener\">\u3055\u307e\u3056\u307e\u306a\u653b\u6483\u8005\u306e\u5831\u544a<\/a>\u3082\u516c\u958b\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u88ab\u5bb3\u7d44\u7e54\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3057\u3066\u30a2\u30af\u30bb\u30b9\u3059\u308b\u305f\u3081\u306b Python \u30b9\u30af\u30ea\u30d7\u30c8\u304c\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u30a2\u30d5\u30a3\u30ea\u30a8\u30a4\u30c8\u306b\u914d\u5e03\u3055\u308c\u305f\u3068\u3044\u3046\u5831\u544a\u3082\u3042\u308a\u307e\u3059\u3002\u3053\u3046\u3057\u305f\u6a5f\u5fae\u306a\u30b7\u30b9\u30c6\u30e0\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3084\u516c\u958b\u6e08\u307f\u306e PoC \u30b3\u30fc\u30c9\u304c\u3042\u3044\u307e\u3063\u3066\u3001\u540c\u8106\u5f31\u6027\u3078\u306e\u30a8\u30af\u30b9\u30dd\u30fc\u30b8\u30e3\u30fc\u306f\u304d\u308f\u3081\u3066\u30bb\u30f3\u30b7\u30c6\u30a3\u30d6\u306a\u3082\u306e\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>Unit 42 \u306e\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8 \u30ec\u30b9\u30dd\u30f3\u30b9 \u30c1\u30fc\u30e0\u3068\u30de\u30cd\u30fc\u30b8\u30c9 \u30b9\u30ec\u30c3\u30c8 \u30cf\u30f3\u30c6\u30a3\u30f3\u30b0 \u30c1\u30fc\u30e0\u306f\u3001Citrix Bleed \u3092\u60aa\u7528\u3059\u308b\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u653b\u6483\u30b0\u30eb\u30fc\u30d7\u3092\u89b3\u6e2c\u3057\u3066\u3044\u307e\u3059\u3002\u30de\u30cd\u30fc\u30b8\u30c9 \u30b9\u30ec\u30c3\u30c8 \u30cf\u30f3\u30c6\u30a3\u30f3\u30b0 \u30c1\u30fc\u30e0\u306b\u3088\u308b\u8ffd\u52a0\u306e\u89b3\u6e2c\u5185\u5bb9\u3092\u3001\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<h2><a id=\"post-130992-_vgezw6a4uez\"><\/a>Unit 42 \u30de\u30cd\u30fc\u30b8\u30c9 \u30b9\u30ec\u30c3\u30c8 \u30cf\u30f3\u30c6\u30a3\u30f3\u30b0 \u30c1\u30fc\u30e0\u306b\u3088\u308b\u89b3\u6e2c<\/h2>\n<p>Unit 42 \u30de\u30cd\u30fc\u30b8\u30c9 \u30b9\u30ec\u30c3\u30c8 \u30cf\u30f3\u30c6\u30a3\u30f3\u30b0 \u30c1\u30fc\u30e0\u306f\u3001\u4fb5\u5bb3\u3055\u308c\u305f\u8907\u6570\u306e\u30e6\u30fc\u30b6\u30fc\u304c\u5075\u5bdf\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3001VDI (\u4eee\u60f3\u30c7\u30b9\u30af\u30c8\u30c3\u30d7) \u30db\u30b9\u30c8\u4e0a\u306b\u8ffd\u52a0\u306e\u30c4\u30fc\u30eb\u3092\u30c9\u30ed\u30c3\u30d7\u3057\u3066\u3044\u308b\u3088\u3046\u3059\u3092\u89b3\u6e2c\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u306f\u3001\u304a\u305d\u3089\u304f\u306f\u8105\u5a01\u30a2\u30af\u30bf\u30fc\u304c\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3057\u305f Netscaler Gateway \u304b\u3089\u306e\u30ea\u30e2\u30fc\u30c8\u5b9f\u884c\u3067\u306f\u306a\u3044\u304b\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u3067\u306f\u3001\u30ea\u30e2\u30fc\u30c8\u304b\u3089\u306e PowerShell \u30bb\u30c3\u30b7\u30e7\u30f3\u304c <span style=\"font-family: 'courier new', courier, monospace;\">cmd.exe<\/span> \u3092\u751f\u6210\u3057\u3001\u6b21\u306e\u3088\u3046\u306a\u3055\u307e\u3056\u307e\u306a\u5075\u5bdf\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u3044\u305f\u3088\u3046\u3059\u304c\u89b3\u6e2c\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<ul>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">\"C:\\Windows\\system32\\whoami.exe\" \/all<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">\"C:\\Windows\\System32\\Wbem\\WMIC.exe\" qfc get<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">C:\\Windows\\system32\\cmd.exe \/c tasklist \/FI \"windowtitle eq Telnet<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\"><em>REDACTED_INTERNAL_IP<\/em>\"|findstr \"cmd.exe\"<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">cmd.exe \/k \"echo q|telnet <em>REDACTED_INTERNAL_IP<\/em> 80&amp;exit\"<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">cmd \/c \"ping -n 1 -w 1 <em>REDACTED_INTERNAL_IP<\/em> &amp;&amp; echo true || echo false\"|<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">taskkill \/f \/im cmd.exe<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">net localgroup administradores<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">net user administrador<\/span><\/li>\n<\/ul>\n<p>\u3055\u3089\u306b\u3053\u306e\u8105\u5a01\u30a2\u30af\u30bf\u30fc\u306f\u3001Chrome \u30d6\u30e9\u30a6\u30b6\u30fc\u304b Microsoft Edge \u30d6\u30e9\u30a6\u30b6\u30fc\u3092\u4f7f\u3063\u3066\u3001\u8907\u6570\u306e\u30c4\u30fc\u30eb\u3092 VDI \u30db\u30b9\u30c8\u306b\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u3053\u308c\u3089\u306e\u30c4\u30fc\u30eb\u3067\u306f\u6b21\u306e\u5185\u5bb9\u304c\u89b3\u6e2c\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">s.exe<\/span>\u3068\u3044\u3046\u30d0\u30a4\u30ca\u30ea\u30fc\u3002\u3053\u308c\u306f Xteam \u304c\u958b\u767a\u3057\u305f\u30ec\u30c3\u30c9 \u30c1\u30fc\u30df\u30f3\u30b0 \u30c4\u30fc\u30eb\u306e XScan \u306e\u3088\u3046\u3067\u3059\u3002\u8106\u5f31\u6027\u306e\u30b9\u30ad\u30e3\u30f3\u6a5f\u80fd\u304c\u3042\u308a\u307e\u3059\u3002\n<ul>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">s.exe -h <em>REDACTED_INTERNAL_IP<\/em>\/24 -finger -vulnscan -webtimeout 6 -t 100 -debug<\/span><\/li>\n<\/ul>\n<\/li>\n<li>\u30dd\u30fc\u30c8 8000 \u3067\u30ea\u30c3\u30b9\u30f3\u3059\u308b\u5358\u7d14\u306a HTTP \u30b5\u30fc\u30d0\u30fc\u306e\u8d77\u52d5\u8a66\u884c\u3002\n<ul>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">python -m http.server 8000<\/span><\/li>\n<\/ul>\n<\/li>\n<li>mRemoteNG \u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3002\u3053\u308c\u306f\u307b\u304b\u306e\u30b7\u30b9\u30c6\u30e0\u3078\u306e\u30ea\u30e2\u30fc\u30c8\u63a5\u7d9a\u51e6\u7406\u7528\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u308b\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u3067\u3059\u3002\n<ul>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">\"C:\\Windows\\System32\\msiexec.exe\" \/i <\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">\"C:\\Users\\Public\\Libraries\\mRemoteNG-Installer-1.76.20.24615.msi\"<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u3053\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u306f 1 \u9031\u9593\u306b\u308f\u305f\u3063\u3066\u7d9a\u304d\u307e\u3057\u305f\u304c\u3001\u653b\u6483\u8005\u306f VDI \u30db\u30b9\u30c8\u306e\u5916\u5074\u3078\u306e\u30e9\u30c6\u30e9\u30eb\u30e0\u30fc\u30d6\u306b\u306f\u5931\u6557\u3057\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n<h2><a id=\"post-130992-_zg1rezlvhwuy\"><\/a>\u4e2d\u9593\u30ac\u30a4\u30c0\u30f3\u30b9<\/h2>\n<p>Citrix \u306f\u3001\u3053\u306e\u8106\u5f31\u6027\u306b\u306f\u56de\u907f\u7b56\u304c\u306a\u3044\u3068\u3057\u3001\u5f71\u97ff\u3092\u53d7\u3051\u308b\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306b\u305f\u3060\u3061\u306b<a href=\"https:\/\/www.netscaler.com\/blog\/news\/cve-2023-4966-critical-security-update-now-available-for-netscaler-adc-and-netscaler-gateway\/\" target=\"_blank\" rel=\"noopener\">\u30d1\u30c3\u30c1\u3092\u9069\u7528<\/a>\u3059\u308b\u3053\u3068\u3092\u5f37\u304f\u63a8\u5968\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>Unit 42 \u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u304b\u3089\u76f4\u63a5\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\u306a Netscaler Gateway \u304a\u3088\u3073 Netscaler ADC \u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u304b\u3089\u512a\u5148\u7684\u306b\u5f71\u97ff\u3092\u53d7\u3051\u308b\u88fd\u54c1\u306b\u30d1\u30c3\u30c1\u3092\u305f\u3060\u3061\u306b\u9069\u7528\u3059\u308b\u3053\u3068\u3092\u63a8\u5968\u3057\u307e\u3059\u3002<\/p>\n<h2><a id=\"post-130992-_6kajjrwpgjuu\"><\/a>\u7d50\u8ad6<\/h2>\n<p>PoC \u30b3\u30fc\u30c9\u304c\u516c\u958b\u3055\u308c\u3066\u304a\u308a\u3001\u5bfe\u8c61\u304c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u63a5\u7d9a\u3057\u3066\u4f7f\u3046\u30bf\u30a4\u30d7\u306e\u88fd\u54c1\u3067\u3042\u308b\u3053\u3068\u304b\u3089\u3001\u30a8\u30af\u30d7\u30ed\u30a4\u30c8\u306f\u5bb9\u6613\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u3001\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306f\u3001Citrix \u306e\u30ac\u30a4\u30c0\u30f3\u30b9\u306b\u5f93\u3063\u3066\u5f71\u97ff\u3092\u53d7\u3051\u308b Citrix Netscaler \u88fd\u54c1\u306b\u305f\u3060\u3061\u306b\u30d1\u30c3\u30c1\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3092\u63a8\u5968\u3057\u307e\u3059\u3002\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u516c\u958b\u3055\u308c\u3066\u3044\u308b\u540c\u88fd\u54c1\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u304b\u3089\u512a\u5148\u7684\u306b\u5bfe\u5fdc\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30d1\u30c3\u30c1\u3092\u3059\u3050\u306b\u9069\u7528\u3067\u304d\u306a\u3044\u5834\u5408\u306f\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u7121\u52b9\u5316\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306f\u5f15\u304d\u7d9a\u304d\u72b6\u6cc1\u3092\u76e3\u8996\u3057\u3001\u65b0\u305f\u306a\u767a\u898b\u3084\u60c5\u5831\u304c\u3042\u308c\u3070\u3053\u306e\u6587\u66f8\u3092\u66f4\u65b0\u3057\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\u306b\u793a\u3059\u5f0a\u793e\u88fd\u54c1\u306b\u3088\u308b\u4fdd\u8b77\u3092\u53d7\u3051\u3089\u308c\u307e\u3059\u3002\u8a73\u7d30\u306a\u60c5\u5831\u304c\u5229\u7528\u53ef\u80fd\u306b\u306a\u308a\u3057\u3060\u3044\u672c\u7a3f\u306f\u66f4\u65b0\u3055\u308c\u307e\u3059\u3002<\/p>\n<h2><a id=\"post-130992-_lqzcx8cug942\"><\/a>\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u88fd\u54c1\u306b\u3088\u308b Citrix Bleed \u3078\u306e\u4fdd\u8b77<\/h2>\n<p>\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306e\u304a\u5ba2\u69d8\u306b\u306f\u3001\u5f0a\u793e\u88fd\u54c1\/\u30b5\u30fc\u30d3\u30b9\u306e\u4fdd\u8b77\u30fb\u66f4\u65b0\u3092\u901a\u3058\u3066\u540c\u8105\u5a01\u306e\u7279\u5b9a\u30fb\u9632\u5fa1\u304c\u63d0\u4f9b\u3055\u308c\u3066\u3044\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\" target=\"_blank\" rel=\"noopener\">\u3053\u3061\u3089\u306e\u30d5\u30a9\u30fc\u30e0<\/a>\u304b\u3089\u3054\u9023\u7d61\u3044\u305f\u3060\u304f\u304b\u3001infojapan@paloaltonetworks.com\u307e\u3067\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\uff1a866.486.4842 (866.4.UNIT42)<\/li>\n<li>EMEA: +31.20.299.3130<\/li>\n<li>APAC: +65.6983.8730<\/li>\n<li>\u65e5\u672c: (+81) 50-1790-0200<\/li>\n<\/ul>\n<h3><a id=\"post-130992-_51o90981mrdh\"><\/a>Unit 42 \u30de\u30cd\u30fc\u30b8\u30c9 \u30b9\u30ec\u30c3\u30c8 \u30cf\u30f3\u30c6\u30a3\u30f3\u30b0 \u30c1\u30fc\u30e0\u304b\u3089\u306e\u63a8\u5968\u4e8b\u9805<\/h3>\n<p>Cortex XDR \u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u3092 Citrix \u30b2\u30b9\u30c8\u3001VDI \u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3001\u306a\u3089\u3073\u306b\u74b0\u5883\u5168\u4f53\u306b\u5e83\u304f\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u3053\u3068\u3067\u3001Cortex XDR \u306f\u3001\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u5f8c\u306b\u767a\u751f\u3059\u308b\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u3084\u30e9\u30c6\u30e9\u30eb \u30e0\u30fc\u30d6\u306e\u8a66\u307f\u306b\u5bfe\u3057\u3001\u691c\u51fa\u30fb\u9632\u6b62\u30fb\u30c6\u30ec\u30e1\u30c8\u30ea\u30fc\u53d6\u5f97\u3092\u884c\u3048\u307e\u3059\u3002<a href=\"https:\/\/www.paloaltonetworks.com\/resources\/techbriefs\/cortex-xdr-managed-threat-hunting\" target=\"_blank\" rel=\"noopener\">Unit 42 \u30de\u30cd\u30fc\u30b8\u30c9 \u30b9\u30ec\u30c3\u30c8 \u30cf\u30f3\u30c6\u30a3\u30f3\u30b0 \u30c1\u30fc\u30e0<\/a>\u3092\u3001\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u5185\u306b\u6f5c\u3080\u8105\u5a01\u306e\u7d99\u7d9a\u7684\u30cf\u30f3\u30c8\u306b\u3054\u7528\u547d\u3044\u305f\u3060\u304f\u3068\u3001\u640d\u5bb3\u306e\u767a\u751f\u524d\u306b\u30a2\u30af\u30b7\u30e7\u30f3\u3092\u8d77\u3053\u305b\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3><a id=\"post-130992-_jlr298x3ynzm\"><\/a>Advanced Threat Prevention \u3092\u6709\u52b9\u306b\u3057\u305f\u6b21\u4e16\u4ee3\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3068 Prisma Access<\/h3>\n<p><a href=\"https:\/\/docs.paloaltonetworks.com\/ngfw\" target=\"_blank\" rel=\"noopener\">\u6b21\u4e16\u4ee3\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb<\/a>\u3067 <a href=\"https:\/\/docs.paloaltonetworks.com\/advanced-threat-prevention\/administration\" target=\"_blank\" rel=\"noopener\">Advanced Threat Prevention <\/a>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u3092\u6709\u52b9\u306b\u3057\u3066\u3044\u308b\u5834\u5408\u3001Threat Prevention \u306e\u30b7\u30b0\u30cd\u30c1\u30e3\u30fc <a href=\"https:\/\/threatvault.paloaltonetworks.com\/?query=94483\" target=\"_blank\" rel=\"noopener\">94483<\/a> \u3092\u901a\u3058\u305f\u30d9\u30b9\u30c8 \u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u304c\u653b\u6483\u9632\u6b62\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<h3><a id=\"post-130992-_6tj50ebqiikc\"><\/a>Advanced WildFire<\/h3>\n<p><a href=\"https:\/\/docs.paloaltonetworks.com\/wildfire\" target=\"_blank\" rel=\"noopener\">Advanced WildFire<\/a> \u306f\u3053\u306e\u65b0\u305f\u306a Citrix Bleed \u3092\u8e0f\u307e\u3048\u3001\u6a5f\u68b0\u5b66\u7fd2\u30e2\u30c7\u30eb\u3068\u5206\u6790\u624b\u6cd5\u306e\u898b\u76f4\u3057\u3068\u66f4\u65b0\u3092\u884c\u3044\u307e\u3057\u305f\u3002<\/p>\n<h3><a id=\"post-130992-_eccmzj4tjbo9\"><\/a>Cortex Xpanse<\/h3>\n<p><a href=\"https:\/\/www.paloaltonetworks.jp\/cortex\/cortex-xpanse\" target=\"_blank\" rel=\"noopener\">Cortex Xpanse<\/a> \u306f\u3001CVE-2023-4966 \u306b\u5bfe\u3059\u308b\u65b0\u3057\u3044 Threat Response Event \u3092\u516c\u958b\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u306b\u306f\u3001\u56f3 1 \u306b\u793a\u3059\u3088\u3046\u306b\u3001Citrix Netscaler Gateway \u304a\u3088\u3073 Citrix Netscaler ADC \u3092\u691c\u51fa\u3059\u308b\u305f\u3081\u306e Attack Surface Rule (\u653b\u6483\u5bfe\u8c61\u9818\u57df\u30eb\u30fc\u30eb) \u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e Threat Response Event \u306b\u3088\u308a\u3001\u5916\u90e8\u306b\u9732\u51fa\u3057\u3066\u3057\u307e\u3063\u3066\u3044\u308b\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3084\u3001\u65e2\u77e5\u306e\u5b89\u5168\u3067\u306a\u3044\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u7a3c\u50cd\u3057\u3066\u3044\u308b\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u7279\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_130994\" aria-describedby=\"caption-attachment-130994\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-130994 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2023\/11\/word-image-130986-1.png\" alt=\"Cortex Xpanse \u306e Citrix NetScaler ADC and NetScaler Gateway \u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3002Incident Response (\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u5bfe\u5fdc) \u30e1\u30cb\u30e5\u30fc\u304c\u9078\u629e\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u60c5\u5831\u306b\u306f\u3001\u8105\u5a01\u306e\u6982\u8981\u3001\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306e\u7d50\u679c\u3001\u95a2\u9023\u3059\u308b CVE\u3001\u4fee\u5fa9\u3068\u7de9\u548c\u306e\u63d0\u6848\u3001\u5f71\u97ff\u3092\u53d7\u3051\u308b\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\" width=\"900\" height=\"430\" \/><figcaption id=\"caption-attachment-130994\" class=\"wp-caption-text\">\u56f3 1. Cortex Xpanse \u3067 Citrix NetScaler ADC and Gateway [CVE-2023-4966] \u3092\u8868\u793a\u3057\u3066\u3044\u308b\u3068\u3053\u308d<\/figcaption><\/figure>\n<h3><a id=\"post-130992-_2m49v0ag38qw\"><\/a>Cortex XDR \u3068 Cortex XSIAM<\/h3>\n<p><a href=\"https:\/\/docs-cortex.paloaltonetworks.com\/p\/XDR\" target=\"_blank\" rel=\"noopener\">Cortex XDR<\/a> \u3068 <a href=\"https:\/\/docs-cortex.paloaltonetworks.com\/p\/XSIAM\" target=\"_blank\" rel=\"noopener\">Cortex XSIAM<\/a> \u306e\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306f\u3001Behavioral Threat Protection\u3001Anti-Webshell Protection\u3001Credential Gathering Protection\u3001\u5206\u6790\u306a\u3069\u3092\u542b\u3080\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306e\u4fdd\u8b77\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u4f7f\u3044\u3001\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u5f8c\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u3092\u691c\u51fa\u3057\u3001\u4fdd\u8b77\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002ASM \u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u5099\u3048\u305f XSIAM \u3092\u304a\u4f7f\u3044\u306e\u304a\u5ba2\u69d8\u306f\u3001\u5148\u306b\u89e3\u8aac\u3057\u305f Cortex Xpanse \u306e\u691c\u51fa\u6a5f\u80fd\u3082\u3054\u5229\u7528\u306b\u306a\u308c\u307e\u3059\u3002<\/p>\n<h2><a id=\"post-130992-_ws3r399yprs3\"><\/a>IoC (\u4fb5\u5bb3\u6307\u6a19)<\/h2>\n<ul>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">C:\\Users\\Public\\Documents\\s.exe<\/span> - XScan<\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">C:\\Users\\Public\\Documents\\dsquery.exe<\/span> - Active Directory \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u691c\u7d22\u7528\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u308b\u30c4\u30fc\u30eb<\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">C:\\Users\\Public\\Documents\\dsget.exe<\/span> - Active Directory \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u95b2\u89a7\u7528\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u308b\u30c4\u30fc\u30eb<\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">C:\\Users\\Public\\Libraries\\7z2301-x64.exe<\/span> - 7zipinstall<\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">C:\\Users\\Public\\Libraries\\mRemoteNG-Installer-1.76.20.24615.msi<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">C:\\Users\\Public\\Libraries\\python-3.12.0-amd64.exe<\/span> - \u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u305f Python<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u8981 2023 \u5e74 10 \u6708 10 \u65e5\u3001Citrix \u306f Netscaler ADC \u304a\u3088\u3073 Netscaler Gateway \u88fd\u54c1\u5411\u3051\u306e\u30d1\u30c3\u30c1\u3092\u516c\u958b\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u30d1\u30c3\u30c1\u306b\u3088\u308a\u7de9\u548c\u3055\u308c\u308b\u3053\u3068\u306b\u306a\u308b\u7279\u5b9a\u8106\u5f31\u6027\u306e 1 \u3064\u306f<\/p>\n","protected":false},"author":23,"featured_media":134394,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[4432,4470],"tags":[4875,4877,4879],"product_categories":[4442,4444,4448,4449,4450,4456,4465],"coauthors":[1025],"class_list":["post-130992","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-top-cyberthreats-ja","category-vulnerabilities-ja","tag-citrix-ja","tag-citrix-netscaler-ja","tag-cve-2023-4966-ja","product_categories-advanced-threat-prevention-ja","product_categories-advanced-wildfire-ja","product_categories-cortex-xdr-ja","product_categories-cortex-xpanse-ja","product_categories-cortex-xsiam-ja","product_categories-next-generation-firewall-ja","product_categories-unit-42-incident-response-ja"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.0 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>\u8105\u5a01\u306b\u95a2\u3059\u308b\u60c5\u5831: Citrix Bleed CVE-2023-4966<\/title>\n<meta name=\"description\" content=\"Citrix Netscaler ADC\u3068Netscaler Gateway\u88fd\u54c1\u306e\u6a5f\u5fae\u60c5\u5831\u6f0f\u3048\u3044\u306e\u8106\u5f31\u6027CVE-2023-4966 (Citrix Bleed)\u3092\u307e\u3068\u3081\u307e\u3057\u305f\u3002Unit 42 \u30de\u30cd\u30fc\u30b8\u30c9 \u30b9\u30ec\u30c3\u30c8 \u30cf\u30f3\u30c6\u30a3\u30f3\u30b0 \u30c1\u30fc\u30e0\u306e\u89b3\u6e2c\u3057\u305f\u653b\u6483\u3082\u89e3\u8aac\u3057\u307e\u3059\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/unit42.paloaltonetworks.com\/ja\/threat-brief-cve-2023-4966-netscaler-citrix-bleed\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" 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