{"id":180718,"date":"2026-05-05T07:33:40","date_gmt":"2026-05-05T14:33:40","guid":{"rendered":"https:\/\/unit42.paloaltonetworks.com\/?p=180718"},"modified":"2026-05-13T07:49:56","modified_gmt":"2026-05-13T14:49:56","slug":"cve-2026-31431-copy-fail","status":"publish","type":"post","link":"https:\/\/origin-unit42.paloaltonetworks.com\/ja\/cve-2026-31431-copy-fail\/","title":{"rendered":"Copy Fail:\u3053\u3053\u6570\u5e74\u3067\u6700\u3082\u6df1\u523b\u306aLinux\u306e\u8105\u5a01\u306b\u3064\u3044\u3066\u5fc5\u8981\u306a\u77e5\u8b58"},"content":{"rendered":"<h2><a id=\"post-180718-_4lt92rr5muov\"><\/a>\u30a8\u30b0\u30bc\u30af\u30c6\u30a3\u30d6 \u30b5\u30de\u30ea\u30fc<\/h2>\n<p>2026\u5e744\u670829\u65e5\u3001\u7814\u7a76\u8005\u305f\u3061\u306f<a href=\"https:\/\/nvd.nist.gov\/vuln\/detail\/CVE-2026-31431\" target=\"_blank\" rel=\"noopener\">CVE-2026-31431<\/a>\u3068\u3057\u3066\u8ffd\u8de1\u3055\u308c\u3066\u3044\u308b\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30ed\u30fc\u30ab\u30eb\u7279\u6a29\u6607\u683c(LPE)\u306e\u8106\u5f31\u6027\u3092<a href=\"https:\/\/copy.fail\/\" target=\"_blank\" rel=\"noopener\">\u516c\u958b\u3057\u307e\u3057\u305f<\/a>\u3002\u3053\u306e\u8106\u5f31\u6027\u306f\u901a\u79f0Copy Fail\u3068\u547c\u3070\u308c\u3066\u3044\u307e\u3059\u3002<a href=\"https:\/\/xint.io\/blog\/copy-fail-linux-distributions\" target=\"_blank\" rel=\"noopener\">AI\u652f\u63f4\u30d7\u30ed\u30bb\u30b9<\/a>\u306b\u3088\u308a\u7d041\u6642\u9593\u3067\u767a\u898b\u3055\u308c\u305f\u3053\u306e\u30ed\u30b8\u30c3\u30af\u306e\u6b20\u9665\u306b\u3088\u308a\u3001\u6a29\u9650\u306e\u306a\u3044\u30ed\u30fc\u30ab\u30eb\u653b\u6483\u8005\u306f\u4e00\u8cab\u3057\u3066\u30012017\u5e74\u4ee5\u964d\u306b\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u305f\u3001\u4e8b\u5b9f\u4e0a\u3059\u3079\u3066\u306e\u4e3b\u8981\u306aLinux\u30c7\u30a3\u30b9\u30c8\u30ea\u30d3\u30e5\u30fc\u30b7\u30e7\u30f3\u306b\u308f\u305f\u308a\u3001root\u30a2\u30af\u30bb\u30b9\u306b<a href=\"https:\/\/www.microsoft.com\/en-us\/security\/blog\/2026\/05\/01\/cve-2026-31431-copy-fail-vulnerability-enables-linux-root-privilege-escalation\/\" target=\"_blank\" rel=\"noopener\">\u81ea\u8eab\u306e\u30a2\u30af\u30bb\u30b9\u3092\u6607\u683c<\/a>\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u591a\u304f\u306e\u30ab\u30fc\u30cd\u30eb\u306e\u8106\u5f31\u6027\u3068\u306f\u7570\u306a\u308a\u3001\u3053\u306e\u30ed\u30b8\u30c3\u30af\u306e\u6b20\u9665\u306f\u6c7a\u5b9a\u8ad6\u7684\u3001\u3064\u307e\u308a\u7af6\u5408\u72b6\u614b\u3084\u7279\u5b9a\u306e\u30ab\u30fc\u30cd\u30eb \u30aa\u30d5\u30bb\u30c3\u30c8\u306b\u4f9d\u5b58\u3057\u307e\u305b\u3093\u3002732\u30d0\u30a4\u30c8\u306ePython\u30b9\u30af\u30ea\u30d7\u30c81\u3064\u3067\u3001\u7570\u306a\u308bLinux\u30c7\u30a3\u30b9\u30c8\u30ea\u30d3\u30e5\u30fc\u30b7\u30e7\u30f3\u9593\u3067\u4f55\u306e\u4fee\u6b63\u3082\u52a0\u3048\u308b\u3053\u3068\u306a\u304f\u3001\u60aa\u7528\u3092\u6210\u529f\u88cf\u306b\u884c\u3048\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u8106\u5f31\u6027\u306f\u3001Linux\u30ab\u30fc\u30cd\u30eb\u306e\u6697\u53f7\u30b5\u30d6\u30b7\u30b9\u30c6\u30e0\u3001\u7279\u306b<span style=\"font-family: 'courier new', courier, monospace;\">AF_ALG<\/span>\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9(\u30e6\u30fc\u30b6\u30fc\u7a7a\u9593\u306e\u6697\u53f7API)\u306e<span style=\"font-family: 'courier new', courier, monospace;\">algif_aead<\/span>\u30e2\u30b8\u30e5\u30fc\u30eb\u306b\u8d77\u56e0\u3059\u308b\u3082\u306e\u3067\u3059\u3002\u3053\u306e\u6b20\u9665\u306f\u5358\u4e00\u306e\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0 \u30a8\u30e9\u30fc\u3067\u306f\u306a\u304f\u30013\u3064\u306e\u72ec\u7acb\u3057\u305f\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306e\u7d44\u307f\u5408\u308f\u305b\u306b\u3088\u3063\u3066\u751f\u3058\u307e\u3057\u305f:<\/p>\n<ul>\n<li>2011\u5e74\u306b\u8ffd\u52a0\u3055\u308c\u305f<span style=\"font-family: 'courier new', courier, monospace;\">authencesn<\/span>\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0<\/li>\n<li>2015\u5e74\u306bAEAD\u306b\u5bfe\u5fdc\u3057\u305f<span style=\"font-family: 'courier new', courier, monospace;\">AF_ALG<\/span>\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9<\/li>\n<li>2017\u5e74\u306b\u5c0e\u5165\u3055\u308c\u305f\u91cd\u5927\u306a\u30a4\u30f3\u30d7\u30ec\u30fc\u30b9\u6700\u9069\u5316<\/li>\n<\/ul>\n<p>\u6697\u53f7\u5316\u51e6\u7406\u4e2d\u306b\u3001\u30a4\u30f3\u30d7\u30ec\u30fc\u30b9\u6700\u9069\u5316\u306e\u30d0\u30b0\u306b\u3088\u308a\u3001\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u304c\u5b9b\u5148\u30d0\u30c3\u30d5\u30a1\u3092\u4e0d\u9069\u5207\u306b\u4f7f\u7528\u3057\u3001\u6b63\u5f53\u306a\u9818\u57df\u3092\u8d85\u3048\u3066\u5236\u5fa1\u3055\u308c\u305f4\u30d0\u30a4\u30c8\u304c\u30b7\u30b9\u30c6\u30e0\u306e\u30d5\u30a1\u30a4\u30eb \u30da\u30fc\u30b8 \u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u76f4\u63a5\u66f8\u304d\u8fbc\u307e\u308c\u307e\u3059\u3002\u5f71\u97ff\u3092\u53d7\u3051\u308b\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u306f\u30014.14\u304b\u30896.19.12\u307e\u3067\u306eLinux\u30ab\u30fc\u30cd\u30eb\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u8106\u5f31\u6027\u306f\u3001<a href=\"https:\/\/ubuntu.com\/blog\/copy-fail-vulnerability-fixes-available\" target=\"_blank\" rel=\"noopener\">Ubuntu<\/a>\u3001Amazon Linux\u3001<a href=\"https:\/\/access.redhat.com\/solutions\/7142032\" target=\"_blank\" rel=\"noopener\">Red Hat Enterprise Linux<\/a>\u3001<a href=\"https:\/\/debiansupport.com\/blog\/copy-fail-cve-2026-31431-mitigation\/\" target=\"_blank\" rel=\"noopener\">Debian<\/a>\u3001<a href=\"https:\/\/www.suse.com\/c\/addressing-copy-fail-in-suse-virtualization\/\" target=\"_blank\" rel=\"noopener\">SUSE<\/a>\u3001AlmaLinux\u306e\u3088\u3046\u306a\u3088\u3046\u306a\u4e3b\u6d41\u306e\u30c7\u30a3\u30b9\u30c8\u30ea\u30d3\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u884c\u3057\u3066\u3044\u308b\u6570\u767e\u4e07\u306e\u30b7\u30b9\u30c6\u30e0\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002\u6a19\u6e96\u7684\u306a\u30ed\u30fc\u30ab\u30eb\u30a2\u30af\u30bb\u30b9\u6a29\u3092\u6301\u3064\u653b\u6483\u8005\u306f\u3001\u3053\u306e\u8106\u5f31\u6027\u3092\u60aa\u7528\u3057\u3066\u3001\u30c7\u30a3\u30b9\u30af\u4e0a\u306e\u7269\u7406\u30d5\u30a1\u30a4\u30eb\u304c\u5909\u66f4\u3055\u308c\u306a\u3044\u307e\u307e\u3001\u6574\u5408\u6027\u30c1\u30a7\u30c3\u30af\u306e\u8b66\u544a\u3092\u51fa\u3055\u305a\u306b\u7279\u6a29\u5b9f\u884c\u30d5\u30a1\u30a4\u30eb(<span style=\"font-family: 'courier new', courier, monospace;\">su<\/span>\u3084<span style=\"font-family: 'courier new', courier, monospace;\">sudo<\/span>\u306a\u3069)\u306e\u30e1\u30e2\u30ea\u5185\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u60aa\u610f\u3092\u6301\u3063\u3066\u5909\u66f4\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30ab\u30fc\u30cd\u30eb\u3068\u305d\u306e\u30da\u30fc\u30b8 \u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u30ce\u30fc\u30c9\u5168\u4f53\u3067\u5171\u6709\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u3053\u306e\u6b20\u9665\u306b\u3088\u3063\u3066\u653b\u6483\u8005\u306f\u4ee5\u4e0b\u306e\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059:<\/p>\n<ul>\n<li>Kubernetes\u30b3\u30f3\u30c6\u30ca\u304b\u3089\u7c21\u5358\u306b\u629c\u3051\u51fa\u3059<\/li>\n<li>\u30de\u30eb\u30c1\u30c6\u30ca\u30f3\u30c8 \u30db\u30b9\u30c8\u3092\u4e57\u3063\u53d6\u308b<\/li>\n<li>\u7d99\u7d9a\u7684\u30a4\u30f3\u30c6\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u3068\u7d99\u7d9a\u7684\u30c7\u30ea\u30d0\u30ea\u30fc(CI\/CD)\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u3092\u4fb5\u5bb3\u3059\u308b<\/li>\n<\/ul>\n<p>\u6211\u3005\u306f\u3001\u30d9\u30f3\u30c0\u30fc\u304c\u767a\u884c\u3057\u305f\u30ab\u30fc\u30cd\u30eb \u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3067\u76f4\u3061\u306b\u30b7\u30b9\u30c6\u30e0\u306b\u30d1\u30c3\u30c1\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3092\u7d44\u7e54\u306b\u5f37\u304f\u63a8\u5968\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\u306e\u88fd\u54c1\u3092\u3054\u5229\u7528\u3044\u305f\u3060\u304f\u3053\u3068\u3067CVE-2026-31431\u304b\u3089\u7d44\u7e54\u3092\u4fdd\u8b77\u3057\u3001\u305d\u306e\u30ea\u30b9\u30af\u3092\u8efd\u6e1b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li><a href=\"https:\/\/docs.paloaltonetworks.com\/advanced-threat-prevention\/administration\" target=\"_blank\" rel=\"noopener\">Advanced Threat Prevention<\/a>\u3092\u642d\u8f09\u3057\u305f<a href=\"https:\/\/docs.paloaltonetworks.com\/ngfw\" target=\"_blank\" rel=\"noopener\">\u6b21\u4e16\u4ee3\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb<\/a><\/li>\n<li><a href=\"https:\/\/docs-cortex.paloaltonetworks.com\/r\/Cortex-CLOUD\/Cortex-Cloud-Runtime-Security-Documentation\/Endpoint-protection\" target=\"_blank\" rel=\"noopener\">Cortex Cloud<\/a><\/li>\n<li><a href=\"https:\/\/www.paloaltonetworks.com\/cortex\/cortex-xdr?_gl=1*13pmp8e*_ga*NzQyNjM2NzkuMTY2NjY3OTczNw..*_ga_KS2MELEEFC*MTY2OTczNjA2MS4zMS4wLjE2Njk3MzYwNjEuNjAuMC4w\" target=\"_blank\" rel=\"noopener\">Cortex XDR<\/a>\u3068<a href=\"https:\/\/www.paloaltonetworks.com\/resources\/datasheets\/cortex-xsiam-aag\" target=\"_blank\" rel=\"noopener\">XSIAM<\/a><\/li>\n<\/ul>\n<p>Linux Foundation\u306fCVE-2026-314331\u306e\u7de9\u548c\u7b56\u306e\u8a73\u7d30\u3092\u542b\u3080<a href=\"https:\/\/lore.kernel.org\/linux-cve-announce\/2026042214-CVE-2026-31431-3d65@gregkh\/\" target=\"_blank\" rel=\"noopener\">\u52e7\u544a\u3092\u63b2\u8f09\u3057\u307e\u3057\u305f<\/a>\u3002\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u3067\u306f\u3001\u30d9\u30f3\u30c0\u30fc\u304c\u767a\u884c\u3057\u305f\u30ab\u30fc\u30cd\u30eb \u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u76f4\u3061\u306b\u9069\u7528\u3059\u308b\u3053\u3068\u3092\u5f37\u304f\u63a8\u5968\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u304c\u5b9f\u884c\u4e0d\u53ef\u80fd\u306a\u5834\u5408\u306f\u3001<a href=\"#post-180718-_zg1rezlvhwuy\" target=\"_blank\" rel=\"noopener\">\u66ab\u5b9a\u7684\u306a\u7de9\u548c\u7b56<\/a>\u306b\u5f93\u3063\u3066\u3001\u30d1\u30c3\u30c1\u304c\u9069\u7528\u3067\u304d\u308b\u307e\u3067\u8106\u5f31\u306a\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u7121\u52b9\u306b\u3059\u308b\u3053\u3068\u3092\u63a8\u5968\u3057\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/start.paloaltonetworks.com\/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\u304a\u5ba2\u69d8\u306e\u30ea\u30b9\u30af\u8efd\u6e1b\u306e\u305f\u3081\u306b\u3001\u4fb5\u5bb3\u3092\u53d7\u3051\u305f\u969b\u306e\u652f\u63f4\u3060\u3051\u3067\u306a\u304f\u30d7\u30ed\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u8a55\u4fa1\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<table style=\"width: 99.2925%;\">\n<tbody>\n<tr>\n<td style=\"width: 35%;\"><strong>\u8b70\u8ad6\u3055\u308c\u305f\u8106\u5f31\u6027<\/strong><\/td>\n<td style=\"width: 196.254%;\"><strong>\u00a0CVE-2026-31431<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><a id=\"post-180718-_wven14kmgum2\"><\/a>CVE-2026-31431\u306e\u8a73\u7d30<\/h2>\n<p>CVE-2026-31431\u3068\u3057\u3066\u8ffd\u8de1\u3055\u308c\u3066\u3044\u308b\u8106\u5f31\u6027(\u901a\u79f0Copy Fail)\u306f\u3001Linux\u30ab\u30fc\u30cd\u30eb\u306e\u6697\u53f7\u30b5\u30d6\u30b7\u30b9\u30c6\u30e0\u3001\u7279\u306b<span style=\"font-family: 'courier new', courier, monospace;\">AF_ALG<\/span>\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u306e<span style=\"font-family: 'courier new', courier, monospace;\">algif_aead<\/span>\u30e2\u30b8\u30e5\u30fc\u30eb\u5185\u306b\u3042\u308b\u6c7a\u5b9a\u8ad6\u7684\u30ed\u30b8\u30c3\u30af\u306e\u6b20\u9665\u3067\u3059\u3002<\/p>\n<h3><a id=\"post-180718-_gjn0z5s9lche\"><\/a>\u6839\u672c\u539f\u56e0<\/h3>\n<p>\u3053\u306e\u6b20\u9665\u306f\u3001AEAD\u6697\u53f7\u5316\u7528\u306b2017\u5e74\u306bLinux\u30ab\u30fc\u30cd\u30eb\u306b\u5c0e\u5165\u3055\u308c\u305f\u30a4\u30f3\u30d7\u30ec\u30fc\u30b9\u6700\u9069\u5316\u306e\u30d0\u30b0(\u30b3\u30df\u30c3\u30c8<a href=\"https:\/\/github.com\/torvalds\/linux\/commit\/72548b093ee3\" target=\"_blank\" rel=\"noopener\">72548b093ee3<\/a>)\u306b\u8d77\u56e0\u3059\u308b\u3082\u306e\u3067\u3059\u3002\u3053\u306e2017\u5e74\u306e\u30a4\u30f3\u30d7\u30ec\u30fc\u30b9\u6700\u9069\u5316\u306f\u3001\u7279\u306b<span style=\"font-family: 'courier new', courier, monospace;\">req-&gt;src<\/span>\u3068<span style=\"font-family: 'courier new', courier, monospace;\">req-&gt;dst<\/span>\u304c\u7d44\u307f\u5408\u308f\u3055\u308c\u305f\u30b9\u30ad\u30e3\u30c3\u30bf\u30fc\u30ea\u30b9\u30c8\u3092\u6307\u3059\u3088\u3046\u306b\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u305f\u3081\u3001<span style=\"font-family: 'courier new', courier, monospace;\">splice()<\/span>\u30b3\u30fc\u30eb\u304b\u3089\u306e\u30da\u30fc\u30b8 \u30ad\u30e3\u30c3\u30b7\u30e5 \u30da\u30fc\u30b8\u304c\u3001\u66f8\u304d\u8fbc\u307f\u53ef\u80fd\u306a\u5b9b\u5148\u30b9\u30ad\u30e3\u30c3\u30bf-\u30ea\u30b9\u30c8\u306b\u4e0d\u9069\u5207\u306b\u76f4\u63a5\u9023\u9396\u3055\u308c\u3066\u3044\u305f\u306e\u3067\u3059\u3002<\/p>\n<p>\u6697\u53f7\u5316\u51e6\u7406\u4e2d\u306b\u3001<span style=\"font-family: 'courier new', courier, monospace;\">authencesn<\/span>\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306f\u547c\u3073\u51fa\u3057\u5143\u306e\u5b9b\u5148\u30d0\u30c3\u30d5\u30a1\u3092\u30b9\u30af\u30e9\u30c3\u30c1 \u30d1\u30c3\u30c9\u3068\u3057\u3066\u4e0d\u6b63\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u3001\u5236\u5fa1\u3055\u308c\u305f4\u30d0\u30a4\u30c8\u304c\u6b63\u898f\u306e\u51fa\u529b\u9818\u57df\u3092\u8d8a\u3048\u3066\u66f8\u304d\u8fbc\u307e\u308c\u3001\u9023\u9396\u3057\u305f\u30b9\u30ad\u30e3\u30c3\u30bf\u30fc\u30ea\u30b9\u30c8\u306e\u5883\u754c\u3092\u8d8a\u3048\u3066\u3057\u307e\u3044\u3001\u5fa9\u5143\u306b\u5931\u6557\u3057\u307e\u3059\u3002\u30d1\u30c3\u30c1(\u30b3\u30df\u30c3\u30c8<a href=\"https:\/\/www.google.com\/url?sa=E&amp;q=https%3A%2F%2Fgithub.com%2Ftorvalds%2Flinux%2Fcommit%2Fa664bf3d603dc3bdcf9ae47cc21e0daec706d7a5\" target=\"_blank\" rel=\"noopener\">a664bf3d603d<\/a>)\u306f\u3001\u30e2\u30b8\u30e5\u30fc\u30eb\u3092out-of-place\u30aa\u52d5\u4f5c\u306b\u623b\u3057\u3001\u547c\u3073\u51fa\u3057\u5143\u3068\u5b9b\u5148\u306e\u30b9\u30ad\u30e3\u30c3\u30bf\u30fc\u30ea\u30b9\u30c8\u3092\u5206\u96e2\u3057\u3001\u30da\u30fc\u30b8 \u30ad\u30e3\u30c3\u30b7\u30e5 \u30da\u30fc\u30b8\u304c\u53b3\u5bc6\u306b\u8aad\u307f\u53d6\u308a\u5c02\u7528\u306e\u30bd\u30fc\u30b9\u306b\u6b8b\u308b\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u3067\u3001\u3053\u308c\u3092\u4fee\u6b63\u3057\u307e\u3057\u305f\u3002<\/p>\n<h3><a id=\"post-180718-_6lxwwre1t23z\"><\/a>\u4f5c\u7528\u30e1\u30ab\u30cb\u30ba\u30e0<\/h3>\n<p>\u6a29\u9650\u306e\u306a\u3044\u653b\u6483\u8005\u306f\u3001<span style=\"font-family: 'courier new', courier, monospace;\">AF_ALG<\/span> \u30bd\u30b1\u30c3\u30c8\u3000\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3068<span style=\"font-family: 'courier new', courier, monospace;\">splice()<\/span>\u30b7\u30b9\u30c6\u30e0\u30b3\u30fc\u30eb\u306e\u76f8\u4e92\u4f5c\u7528\u3092\u60aa\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3053\u306e\u30e1\u30e2\u30ea \u30cf\u30f3\u30c9\u30ea\u30f3\u30b0 \u30a8\u30e9\u30fc\u3092\u60aa\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<span style=\"font-family: 'courier new', courier, monospace;\">splice()<\/span>\u304c\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30e5 \u30da\u30fc\u30b8\u3092\u6697\u53f7\u30b5\u30d6\u30b7\u30b9\u30c6\u30e0\u306b\u6e21\u3059\u969b\u3001\u3053\u306e\u8106\u5f31\u6027\u306b\u3088\u308a\u3001\u653b\u6483\u8005\u306f4\u30d0\u30a4\u30c8\u306e\u4e0a\u66f8\u304d\u3092\u305d\u306e\u307e\u307e\u30ab\u30fc\u30cd\u30eb\u306e\u30d5\u30a1\u30a4\u30eb\u3000\u30da\u30fc\u30b8\u3000\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u5411\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><span style=\"font-family: 'courier new', courier, monospace;\">authencesn<\/span>\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306fIPsec\u306e\u62e1\u5f35\u30b7\u30fc\u30b1\u30f3\u30b9\u756a\u53f7(ESN)\u30b5\u30dd\u30fc\u30c8\u306b\u4f7f\u7528\u3055\u308c\u3001\u5b9b\u5148\u30d0\u30c3\u30d5\u30a1\u3092\u30b9\u30af\u30e9\u30c3\u30c1 \u30d1\u30c3\u30c9\u3068\u3057\u3066\u4f7f\u7528\u3057\u3066\u30b7\u30fc\u30b1\u30f3\u30b9\u756a\u53f7\u3092\u4e26\u3079\u66ff\u3048\u307e\u3059\u3002\u653b\u6483\u8005\u306f\u3001<span style=\"font-family: 'courier new', courier, monospace;\">sendmsg()<\/span>\u30b3\u30fc\u30eb\u6642\u306b\u3001AAD(Associated Authenticated Data)\u306e4\uff5e7\u30d0\u30a4\u30c8\u76ee\u306b<span style=\"font-family: 'courier new', courier, monospace;\">seqno_lo<\/span>(\u30b7\u30fc\u30b1\u30f3\u30b9\u756a\u53f7\u306e\u4e0b\u4f4d\u534a\u5206)\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u6b63\u78ba\u306b4\u30d0\u30a4\u30c8\u306e\u4e0a\u66f8\u304d\u5024\u3092\u5236\u5fa1\u3057\u307e\u3059\u3002<\/p>\n<h3><a id=\"post-180718-_dmugjiwpws63\"><\/a>\u30da\u30fc\u30b8 \u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u5229\u7528\u3057\u305f\u643e\u53d6<\/h3>\n<p>\u30da\u30fc\u30b8 \u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u3001\u30ab\u30fc\u30cd\u30eb\u304c\u30d0\u30a4\u30ca\u30ea\u3092\u30ed\u30fc\u30c9\u3057\u3066\u5b9f\u884c\u3059\u308b\u969b\u306b\u8aad\u307f\u8fbc\u3080\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u4e00\u6642\u7684\u306a\u30e1\u30e2\u30ea\u5185\u30b3\u30d4\u30fc\u3067\u3059\u3002\u653b\u6483\u8005\u306f\u30014\u30d0\u30a4\u30c8\u306e\u4e0a\u66f8\u304d\u3092\u5229\u7528\u3057\u3066\u3001<span style=\"font-family: 'courier new', courier, monospace;\">\/usr\/bin\/su<\/span>\u3001<span style=\"font-family: 'courier new', courier, monospace;\">sudo<\/span>\u3001<span style=\"font-family: 'courier new', courier, monospace;\">passwd<\/span>\u306a\u3069\u3001\u8aad\u307f\u53d6\u308a\u53ef\u80fd\u306asetuid-root\u30d0\u30a4\u30ca\u30ea\u306e\u30da\u30fc\u30b8 \u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u72d9\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u653b\u6483\u8005\u306f\u3001\u30b9\u30d7\u30e9\u30a4\u30b9 \u30aa\u30d5\u30bb\u30c3\u30c8\u3001\u30b9\u30d7\u30e9\u30a4\u30b9\u9577\u3001<span style=\"font-family: 'courier new', courier, monospace;\">assoclen<\/span> (\u95a2\u9023\u3059\u308b\u9577\u3055)\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u64cd\u4f5c\u3059\u308b\u3053\u3068\u3067\u3001\u4e0a\u66f8\u304d\u304c\u8d77\u3053\u308b\u5834\u6240\u3092\u6b63\u78ba\u306b\u5236\u5fa1\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001<span style=\"font-family: 'courier new', courier, monospace;\">\/usr\/bin\/su<\/span>\u306e\u3088\u3046\u306a<span style=\"font-family: 'courier new', courier, monospace;\">setuid<\/span>\u30d0\u30a4\u30ca\u30ea\u306e<span style=\"font-family: 'courier new', courier, monospace;\">.text<\/span>\u30bb\u30af\u30b7\u30e7\u30f3\u3092\u30bf\u30fc\u30b2\u30c3\u30c8\u306b\u3057\u3066\u3001\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u3092\u6ce8\u5165\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u6a29\u9650\u6607\u683c: <\/strong>\u30d0\u30a4\u30ca\u30ea\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u305f\u30b3\u30d4\u30fc\u3092\u5909\u66f4\u3059\u308b\u3068\u3001\u305d\u306e\u5b9f\u884c\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u304c\u5909\u66f4\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u30d0\u30a4\u30ca\u30ea\u304c\u5b9f\u884c\u3055\u308c\u308b\u3068\u3001\u653b\u6483\u8005\u306b\u30b9\u30fc\u30d1\u30fc\u30e6\u30fc\u30b6\u30fc(UID 0)\u306e\u7279\u6a29\u304c\u4e0e\u3048\u3089\u308c\u3001\u4e8b\u5b9f\u4e0a\u30ab\u30fc\u30cd\u30eb\u306e\u4fe1\u983c\u5883\u754c\u304c\u7834\u3089\u308c\u307e\u3059\u3002<\/li>\n<li><strong>\u30b9\u30c6\u30eb\u30b9: <\/strong>\u3053\u306e\u7834\u640d\u306f\u3059\u3079\u3066\u30b7\u30b9\u30c6\u30e0\u306eRAM\u3067\u8d77\u3053\u308b\u305f\u3081\u3001\u30c7\u30a3\u30b9\u30af\u4e0a\u306e\u7269\u7406\u30d5\u30a1\u30a4\u30eb\u306f\u307e\u3063\u305f\u304f\u5909\u66f4\u3055\u308c\u306a\u3044\u307e\u307e\u3067\u3059\u3002\u3053\u308c\u306f\u3001\u5f93\u6765\u306e\u4eee\u60f3\u30d5\u30a1\u30a4\u30eb \u30b7\u30b9\u30c6\u30e0(VFS)\u30d1\u30b9\u3084\u30d5\u30a1\u30a4\u30eb\u6574\u5408\u6027\u306e\u76e3\u8996\u30c4\u30fc\u30eb\u3092\u30d0\u30a4\u30d1\u30b9\u3057\u307e\u3059\u3002\u30da\u30fc\u30b8\u304c\u30e1\u30e2\u30ea\u304b\u3089\u524a\u9664\u3055\u308c\u308b\u304b\u3001\u30b7\u30b9\u30c6\u30e0\u304c\u518d\u8d77\u52d5\u3055\u308c\u308b\u3068\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u30c7\u30a3\u30b9\u30af\u304b\u3089\u30af\u30ea\u30fc\u30f3\u306a\u72b6\u614b\u3067\u30ea\u30ed\u30fc\u30c9\u3055\u308c\u3001\u4fb5\u5bb3\u306e\u75d5\u8de1\u306f\u6b8b\u308a\u307e\u305b\u3093\u3002<\/li>\n<\/ul>\n<h4><a id=\"post-180718-_hjri8vmwraii\"><\/a>\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306e\u7279\u5fb4<\/h4>\n<p>Copy Fail\u304c\u3001<a href=\"https:\/\/www.redhat.com\/es\/blog\/understanding-and-mitigating-dirty-cow-vulnerability\" target=\"_blank\" rel=\"noopener\">Dirty Cow<\/a>\u3084<a href=\"https:\/\/access.redhat.com\/security\/vulnerabilities\/RHSB-2022-002\" target=\"_blank\" rel=\"noopener\">Dirty Pipe<\/a>\u306e\u3088\u3046\u306a\u3053\u308c\u307e\u3067\u306eLinux LPE\u8106\u5f31\u6027\u3068\u6bd4\u3079\u3066\u3001\u4f8b\u5916\u7684\u306b\u6df1\u523b\u306a\u306e\u306f\u4ee5\u4e0b\u306e\u7279\u5fb4\u306b\u3088\u308b\u3082\u306e\u3067\u3059:<\/p>\n<ul>\n<li><strong>\u7af6\u5408\u72b6\u614b\u3082\u30aa\u30d5\u30bb\u30c3\u30c8\u3082\u306a\u3044: <\/strong>\u3053\u308c\u306f\u3001\u7af6\u5408\u72b6\u614b\u30a6\u30a3\u30f3\u30c9\u30a6\u3078\u306e\u52dd\u5229\u3084\u3001\u30ab\u30fc\u30cd\u30eb\u56fa\u6709\u306e\u30e1\u30e2\u30ea \u30aa\u30d5\u30bb\u30c3\u30c8\u306e\u63a8\u6e2c\u306b\u4f9d\u5b58\u3057\u306a\u3044\u3001\u76f4\u7dda\u7684\u306a\u30ed\u30b8\u30c3\u30af\u306e\u6b20\u9665\u3067\u3059\u3002<\/li>\n<li><strong>100\u30d1\u30fc\u30bb\u30f3\u30c8\u306e\u4fe1\u983c\u6027: <\/strong>\u3053\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306f\u6c7a\u5b9a\u8ad6\u7684\u3067\u3001\u6700\u521d\u306e\u8a66\u884c\u3067\u6210\u529f\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u9ad8\u3044\u643a\u5e2f\u6027: <\/strong>\u3053\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306f\u3001\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea(os\u3001socket\u3001zlib)\u306e\u307f\u306b\u4f9d\u5b58\u3059\u308b\u30b9\u30bf\u30f3\u30c9\u30a2\u30ed\u30f3\u306e732\u30d0\u30a4\u30c8\u306ePython\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u4f7f\u3063\u3066\u5b9f\u884c\u3067\u304d\u308b\u305f\u3081\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u3084\u5916\u90e8\u306e\u4f9d\u5b58\u95a2\u4fc2\u306f\u4e0d\u8981\u3067\u3059\u3002\u3053\u306e\u540c\u3058\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u30012017\u5e74\u4ee5\u964d\u306b\u51fa\u8377\u3055\u308c\u305f\u4e8b\u5b9f\u4e0a\u3059\u3079\u3066\u306e\u4e3b\u8981\u306aLinux\u30c7\u30a3\u30b9\u30c8\u30ea\u30d3\u30e5\u30fc\u30b7\u30e7\u30f3\u3067\u5909\u66f4\u3055\u308c\u308b\u3053\u3068\u306a\u304f\u52d5\u4f5c\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2><a id=\"post-180718-_zg1rezlvhwuy\"><\/a>CVE-2026-31431\u306b\u95a2\u3059\u308b\u66ab\u5b9a\u30ac\u30a4\u30c0\u30f3\u30b9<\/h2>\n<p>\u3053\u306e\u8106\u5f31\u6027\u306f\u3001\u30a2\u30c3\u30d7\u30b9\u30c8\u30ea\u30fc\u30e0\u306eLinux\u30ab\u30fc\u30cd\u30eb\u5b89\u5b9a\u7248\u30d6\u30e9\u30f3\u30c1\u306b\u304a\u3044\u3066\u3001\u6b20\u9665\u306e\u3042\u308b2017\u5e74\u306e\u6700\u9069\u5316(<a href=\"https:\/\/git.kernel.org\/pub\/scm\/linux\/kernel\/git\/stable\/linux.git\/commit\/?id=a664bf3d603dc3bdcf9ae47cc21e0daec706d7a5\" target=\"_blank\" rel=\"noopener\">\u30b3\u30df\u30c3\u30c8 a664bf3d603d<\/a>)\u3092\u5143\u306b\u623b\u3059\u3053\u3068\u3067\u89e3\u6c7a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u65e9\u6025\u306a\u30d1\u30c3\u30c1\u9069\u7528\u304c\u4e0d\u53ef\u80fd\u306a\u5834\u5408\u3001\u7ba1\u7406\u8005\u306f\u5f71\u97ff\u3092\u53d7\u3051\u308b<span style=\"font-family: 'courier new', courier, monospace;\">algif_aead<\/span>\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u7121\u52b9\u306b\u3059\u308b\u3053\u3068\u3067\u3001\u66ab\u5b9a\u7684\u306a\u7de9\u548c\u7b56\u3092\u8b1b\u3058\u308b\u3079\u304d\u3067\u3059\u3002\u3053\u308c\u306f\u3001root\u3068\u3057\u3066\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3001\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u30ed\u30fc\u30c9\u3092\u30d6\u30ed\u30c3\u30af\u3057\u3066\u30ab\u30fc\u30cd\u30eb\u304b\u3089\u524a\u9664\u3059\u308b\u3053\u3068\u3067\u9054\u6210\u3067\u304d\u307e\u3059:<\/p>\n<ul>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">echo \"install algif_aead \/bin\/false\" &gt; \/etc\/modprobe.d\/disable-algif.conf<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">rmmod algif_aead<\/span><\/li>\n<\/ul>\n<p>Linux Foundation\u306fCVE-2026-314331\u306e\u7de9\u548c\u7b56\u306e\u8a73\u7d30\u3092\u542b\u3080<a href=\"https:\/\/lore.kernel.org\/linux-cve-announce\/2026042214-CVE-2026-31431-3d65@gregkh\/\" target=\"_blank\" rel=\"noopener\">\u52e7\u544a\u3092\u63b2\u8f09\u3057\u307e\u3057\u305f<\/a>\u3002<\/p>\n<h2><a id=\"post-180718-_vgezw6a4uez\"><\/a>Unit 42\u30de\u30cd\u30fc\u30b8\u30c9\u8105\u5a01\u30cf\u30f3\u30c6\u30a3\u30f3\u30b0\u7528\u30af\u30a8\u30ea<\/h2>\n<p>Unit 42\u306e\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\u3067\u3001\u9867\u5ba2\u5168\u4f53\u3067\u3053\u306eCVE\u3092\u60aa\u7528\u3057\u3088\u3046\u3068\u3059\u308b\u8a66\u307f\u3092\u8ffd\u8de1\u3057\u7d9a\u3051\u3066\u3044\u307e\u3059\u3002Cortex XDR\u306e\u9867\u5ba2\u306f\u3001\u3053\u308c\u3089\u306eXQL\u30af\u30a8\u30ea\u3067\u3001\u60aa\u7528\u306e\u5146\u5019\u3092\u691c\u7d22\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true\">\/\/ Title: CopyFail Detection via Non-root Launching su via Uncommon Parent Process\r\n\/\/ Description: Query looks for non-root users launching the switch user (su) process via a parent process other than the normally expected processes such as shells, sudo, or su itself. May identify false positives, yet works well for identification of potential CopyFail exploitation.\r\n\/\/ MITRE ATT&amp;CK TTP ID: T1068\r\n\r\ndataset = xdr_data\r\n| fields _time, agent_hostname, agent_os_type, event_type, event_sub_type, actor_effective_username, actor_effective_user_sid, actor_process_image_path, actor_process_image_name, actor_process_command_line, actor_process_image_sha256, action_process_image_name, action_process_image_command_line, action_process_user_sid\r\n| filter\r\n    event_type = ENUM.PROCESS and event_sub_type = ENUM.PROCESS_START\r\n    and agent_os_type = ENUM.AGENT_OS_LINUX\r\n    and actor_effective_user_sid != \"0\"\r\n    and (\r\n        (action_process_image_name = \"su\" and action_process_image_command_line in (\"su\", \"\/usr\/bin\/su\"))\r\n        or (action_process_image_name in (\"bash\", \"sh\") and action_process_image_command_line ~= \"-c(?:\\s--)?\\ssu$\")\r\n    )\r\n   and actor_process_image_name not in (\"bash\", \"sh\", \"zsh\", \"ksh\", \"sudo\", \"su\")\r\n| comp earliest(_time) as first_seen, latest(_time) as last_seen, count() as execution_count, values(actor_effective_username) as actor_usernames,  values(actor_process_image_path) as actor_image_paths, values(actor_process_command_line) as actor_cmd_lines, values(action_process_image_command_line) as action_cmd_lines, values(action_process_user_sid) as action_UIDs by agent_hostname, actor_process_image_name, actor_process_image_sha256<\/pre>\n<pre class=\"lang:default decode:true\">\/\/ Title: CopyFail Proof of Concept Code Execution\r\n\/\/ Description: Query looks for potential CopyFail proof of concept (POC) code execution via identifying potentially correlated curl and su process executions. May identify false positives, yet works well for identification of CopyFail POC provided by Xint.Code.\r\n\/\/ MITRE ATT&amp;CK TTP ID: T1068\r\n\r\nconfig case_sensitive = false\r\n| dataset = xdr_data\r\n| filter agent_os_type = ENUM.AGENT_OS_LINUX\r\n| filter event_type = ENUM.PROCESS and event_sub_type = ENUM.PROCESS_START\r\n| filter action_process_image_name in (\"curl\", \"su\")\r\n| bin _time span = 2m\r\n| filter action_process_image_command_line contains \"copy.fail\/exp\" or (action_process_image_command_line = \"su\" or action_process_image_command_line =\"\/usr\/bin\/su\")\r\n| fields _time, agent_id, event_id, agent_hostname, action_process_image_command_line, action_process_image_name, actor_process_instance_id\r\n| comp count() as event_count, values(agent_id) as agent_id, values(event_id) as event_id, values(action_process_image_name) as processes, values(action_process_image_command_line) as commands by agent_hostname, _time, actor_process_instance_id\r\n| filter processes contains \"su\" and processes contains \"curl\"<\/pre>\n<h2><a id=\"post-180718-_6kajjrwpgjuu\"><\/a>\u7d50\u8ad6<\/h2>\n<p>\u516c\u958b\u3055\u308c\u3066\u3044\u308b\u60c5\u5831\u306e\u91cf\u3001\u4f7f\u3044\u3084\u3059\u3055\u3001Copy Fail\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306e\u6709\u52b9\u6027\u306b\u57fa\u3065\u3044\u3066\u3001\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306f\u3001\u30d9\u30f3\u30c0\u30fc\u304c\u767a\u884c\u3057\u305f\u30ab\u30fc\u30cd\u30eb \u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u76f4\u3061\u306b\u9069\u7528\u3059\u308b\u3053\u3068\u3092\u5f37\u304f\u63a8\u5968\u3057\u307e\u3059\u3002\u3053\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u304c\u5b9f\u884c\u4e0d\u53ef\u80fd\u306a\u5834\u5408\u306f\u3001\u66ab\u5b9a\u7684\u306a\u7de9\u548c\u7b56\u306b\u5f93\u3063\u3066\u3001\u30d1\u30c3\u30c1\u304c\u9069\u7528\u3067\u304d\u308b\u307e\u3067\u8106\u5f31\u306a\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u7121\u52b9\u306b\u3059\u308b\u3053\u3068\u3092\u63a8\u5968\u3057\u307e\u3059\u3002<\/p>\n<p>\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u6982\u5ff5\u5b9f\u8a3c(PoC)\u30b9\u30af\u30ea\u30d7\u30c8\u304c\u516c\u958b\u6e08\u307f\u3067\u3042\u308a\u3001\u4e88\u5099\u7684\u306a\u30c6\u30b9\u30c8\u6d3b\u52d5\u304c\u89b3\u5bdf\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u8003\u3048\u308b\u3068\u3001\u3053\u308c\u306f\u7279\u306b\u91cd\u8981\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\u306b\u793a\u3059\u5f53\u793e\u88fd\u54c1\u306b\u3088\u308a\u4fdd\u8b77\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2><a id=\"post-180718-_lqzcx8cug942\"><\/a>CVE-2026-31431\u306b\u95a2\u3059\u308b\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u88fd\u54c1\u306e\u4fdd\u8b77<\/h2>\n<p>\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306e\u304a\u5ba2\u69d8\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u88fd\u54c1\u4fdd\u8b77\u3001\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u6d3b\u7528\u3057\u3066\u3001\u672c\u8105\u5a01\u3092\u7279\u5b9a\u3057\u7d44\u7e54\u3092\u4fdd\u8b77\u3044\u305f\u3060\u3051\u307e\u3059\u3002<\/p>\n<p>\u60c5\u5831\u6f0f\u3048\u3044\u306e\u53ef\u80fd\u6027\u304c\u3042\u308b\u5834\u5408\u3001\u307e\u305f\u306f\u7dca\u6025\u306e\u6848\u4ef6\u304c\u3042\u308b\u5834\u5408\u306f<a href=\"https:\/\/start.paloaltonetworks.com\/contact-unit42.html\" target=\"_blank\" rel=\"noopener\">Unit 42\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8 \u30ec\u30b9\u30dd\u30f3\u30b9 \u30c1\u30fc\u30e0<\/a>\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u304b\u96fb\u8a71\u3067\u3054\u9023\u7d61\u304f\u3060\u3055\u3044:<\/p>\n<ul>\n<li>\u5317\u7c73:\u30d5\u30ea\u30fc\u30c0\u30a4\u30e4\u30eb: +1 (866) 486-4842 (866.4.UNIT42)<\/li>\n<li>\u82f1\u56fd: +44.20.3743.3660<\/li>\n<li>\u30e8\u30fc\u30ed\u30c3\u30d1\u304a\u3088\u3073\u4e2d\u6771: +31.20.299.3130<\/li>\n<li>\u30a2\u30b8\u30a2: +65.6983.8730<\/li>\n<li>\u65e5\u672c: +81.50.1790.0200<\/li>\n<li>\u30aa\u30fc\u30b9\u30c8\u30e9\u30ea\u30a2: +61.2.4062.7950<\/li>\n<li>\u30a4\u30f3\u30c9: 000 800 050 45107<\/li>\n<li>\u97d3\u56fd: +82.080.467.8774<\/li>\n<\/ul>\n<h3><a id=\"post-180718-_jlr298x3ynzm\"><\/a>Advanced Threat Prevention\u3092\u642d\u8f09\u3057\u305f\u6b21\u4e16\u4ee3\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb<\/h3>\n<p><a href=\"https:\/\/docs.paloaltonetworks.com\/advanced-threat-prevention\/administration\" target=\"_blank\" rel=\"noopener\">Advanced Threat Prevention<\/a>\u3092\u642d\u8f09\u3057\u305f<a href=\"https:\/\/docs.paloaltonetworks.com\/ngfw\" target=\"_blank\" rel=\"noopener\">\u6b21\u4e16\u4ee3\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb<\/a>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u6b21\u306e\u8105\u5a01\u9632\u5fa1\u30b7\u30b0\u30cd\u30c1\u30e3\u3092\u4f7f\u7528\u3057\u3066\u3001\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8 \u30b9\u30af\u30ea\u30d7\u30c8\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7d4c\u7531\u306e\u9001\u4fe1\u3092\u30d6\u30ed\u30c3\u30af\u3067\u304d\u307e\u3059:97176 - Linux\u30ab\u30fc\u30cd\u30eb\u6a29\u9650\u6607\u683c\u306e\u8106\u5f31\u6027\u3002<\/p>\n<h3><a id=\"post-180718-_2m49v0ag38qw\"><\/a>Cortex XDR\u304a\u3088\u3073XSIAM<\/h3>\n<p>\u30b3\u30f3\u30c6\u30f3\u30c4 \u30a2\u30c3\u30d7\u30c7\u30fc\u30c82240-35441\u4ee5\u964d\u306eLinux\u7528Cortex XDR\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306b\u306f\u3001Copy Fail\u8106\u5f31\u6027\u306b\u95a2\u9023\u3059\u308b\u65e2\u77e5\u306e\u30b5\u30f3\u30d7\u30eb\u306e\u691c\u51fa\u304a\u3088\u3073\u9632\u6b62\u6a5f\u80fd\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/www.paloaltonetworks.com\/cortex\/cortex-xdr?_gl=1*13pmp8e*_ga*NzQyNjM2NzkuMTY2NjY3OTczNw..*_ga_KS2MELEEFC*MTY2OTczNjA2MS4zMS4wLjE2Njk3MzYwNjEuNjAuMC4w\" target=\"_blank\" rel=\"noopener\">Cortex XDR<\/a>\u304a\u3088\u3073<a href=\"https:\/\/www.paloaltonetworks.com\/resources\/datasheets\/cortex-xsiam-aag\" target=\"_blank\" rel=\"noopener\">XSIAM<\/a>\u306f\u3001<a href=\"https:\/\/docs.paloaltonetworks.com\/wildfire\" target=\"_blank\" rel=\"noopener\">Advanced WildFire<\/a>\u3001<a href=\"https:\/\/docs-cortex.paloaltonetworks.com\/r\/Cortex-XDR\/Cortex-XDR-3.x-Documentation\/Malware-protection\" target=\"_blank\" rel=\"noopener\">\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u4fdd\u8b77\u30e2\u30b8\u30e5\u30fc\u30eb<\/a>(EPM)\u3001Behavioral Threat Protection\u3001\u304a\u3088\u3073\u30ed\u30fc\u30ab\u30eb\u5206\u6790\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u542b\u3080\u591a\u5c64\u4fdd\u8b77\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u4f7f\u7528\u3057\u3066\u3001\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u524d\u304a\u3088\u3073\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u5f8c\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u304b\u3089\u4fdd\u8b77\u3057\u307e\u3059\u3002<\/p>\n<h3><a id=\"post-180718-_m5cvrg1ww3e6\"><\/a>Cortex Cloud<\/h3>\n<p><a href=\"https:\/\/docs-cortex.paloaltonetworks.com\/r\/Cortex-CLOUD\/Cortex-Cloud-Runtime-Security-Documentation\/Endpoint-protection\" target=\"_blank\" rel=\"noopener\">Cortex Cloud\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u30d7\u30ed\u30c6\u30af\u30b7\u30e7\u30f3<\/a>\u306f\u3001\u3053\u306e\u8a18\u4e8b\u3067\u8ff0\u3079\u3089\u308c\u3066\u3044\u308b\u8105\u5a01\u304b\u3089\u7d44\u7e54\u3092\u4fdd\u8b77\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<a href=\"https:\/\/www.paloaltonetworks.com\/blog\/cloud-security\/visibility-governance-automation\/\" target=\"_blank\" rel=\"noopener\">Cortex Cloud 2.1<\/a>\u306f\u3001\u884c\u52d5\u5206\u6790\u304a\u3088\u3073AI\u5bfe\u5fdc\u5206\u6790\u3092\u4f7f\u7528\u3057\u3066\u3001\u653b\u6483\u8005\u304c\u30b3\u30f3\u30c6\u30ca\u3084\u4eee\u60f3\u30de\u30b7\u30f3\u3092\u542b\u3080Linux\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3092\u6a19\u7684\u3068\u3059\u308b\u30bf\u30a4\u30df\u30f3\u30b0\u3092\u691c\u51fa\u3057\u3001\u60aa\u610f\u306e\u3042\u308b\u64cd\u4f5c\u3092\u9632\u6b62\u3059\u308b\u3053\u3068\u304c<a href=\"https:\/\/www.paloaltonetworks.com\/blog\/cloud-security\/visibility-governance-automation\/\" target=\"_blank\" rel=\"noopener\">\u3067\u304d\u307e\u3059<\/a>\u3002\u3055\u3089\u306b\u3001\u5bfe\u8c61\u3068\u306a\u308b\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306b\u95a2\u9023\u3059\u308b\u30af\u30e9\u30a6\u30c9 \u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306eIAM\u30dd\u30ea\u30b7\u30fc\u304c\u60aa\u7528\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u691c\u51fa\u3057\u3001\u30a2\u30bb\u30c3\u30c8\u304c\u3053\u3046\u3057\u305f\u8105\u5a01\u306b\u3055\u3089\u3055\u308c\u3084\u3059\u304f\u306a\u3063\u3066\u3044\u308b\u5834\u5408\u306b\u30c1\u30fc\u30e0\u306b\u8b66\u544a\u3092\u767a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><em>2026\u5e745\u67086\u65e5\u5348\u5f8c3\u664215\u5206(PT)\u66f4\u65b0\u3002Cortex XDR\u3068XSIAM\u306e\u30ab\u30d0\u30ec\u30c3\u30b8\u3092\u62e1\u5927\u3057\u3001\u9ad8\u5ea6\u306a\u8105\u5a01\u9632\u5fa1\u6a5f\u80fd\u3092\u5099\u3048\u305f\u6b21\u4e16\u4ee3\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3092\u8ffd\u52a0\u3002<\/em><\/p>\n<p><em>2026\u5e745\u67087\u65e5\u5348\u5f8c2\u664200\u5206(PY)\u66f4\u65b0\u3002Cortex XDR\u306e\u30b3\u30f3\u30c6\u30f3\u30c4 \u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u5909\u66f4\u3002<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Copy Fail 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