{"id":120757,"date":"2024-04-15T09:47:52","date_gmt":"2024-04-15T00:47:52","guid":{"rendered":"https:\/\/softantenna.com\/blog\/?p=120757"},"modified":"2024-04-15T09:47:52","modified_gmt":"2024-04-15T00:47:52","slug":"microsoft-fix-kerberos-pac-validation","status":"publish","type":"post","link":"https:\/\/softantenna.com\/blog\/microsoft-fix-kerberos-pac-validation\/","title":{"rendered":"Microsoft\u3001Windows 11\/10\u306e4\u6708\u306e\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u3067Kerberos PAC\u691c\u8a3c\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u8106\u5f31\u6027\u3092\u4fee\u6b63"},"content":{"rendered":"<p><img decoding=\"async\" style=\"display:block; margin-left:auto; margin-right:auto;\" src=\"https:\/\/softantenna.com\/blog\/wp-content\/uploads\/2024\/04\/s_20240410_094428.jpg\" alt=\"S 20240410 094428\" title=\"s_20240410_094428.jpg\" border=\"0\" width=\"1075\" height=\"653\" \/><\/p>\n<p>Microsoft\u304c\u5148\u9031\u30ea\u30ea\u30fc\u30b9\u3057\u305fWindows 11\/10\u7528\u306e\u6708\u4f8b\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u3001<a href=\"https:\/\/softantenna.com\/blog\/windows-11-version-23h2-22h2-kb5036893-monthly\/\">KB5036893<\/a>(Win11)\u3084<a href=\"https:\/\/softantenna.com\/blog\/windows-10-version-22h2-kb5036892-monthly\/\">KB5036892<\/a>(Win10)\u306a\u3069\u3067\u306f\u3001Kerberos PAC\u8a8d\u8a3c\u306b\u95a2\u9023\u3057\u305f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8106\u5f31\u6027\u306e\u5bfe\u51e6\u304c\u884c\u308f\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u8106\u5f31\u6027\u306f<a href=\"https:\/\/msrc.microsoft.com\/update-guide\/vulnerability\/CVE-2024-26248\">CVE-2024-26248<\/a>\u304a\u3088\u3073<a href=\"https:\/\/msrc.microsoft.com\/update-guide\/vulnerability\/CVE-2024-29056\">CVE-2024-29056<\/a>\u3067\u8ffd\u8de1\u3055\u308c\u3066\u304a\u308a\u3001KB5020805\u3067\u8ffd\u52a0\u3055\u308c\u305fPAC\u7f72\u540d\u691c\u8a3c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c1\u30a7\u30c3\u30af\u3092\u56de\u907f\u3067\u304d\u308b\u8106\u5f31\u6027(\u7279\u6a29\u6607\u683c\u306e\u8106\u5f31\u6027)\u304c\u4fee\u6b63\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>Microsoft\u306f<a href=\"https:\/\/support.microsoft.com\/en-us\/topic\/kb5037754-how-to-manage-pac-validation-changes-related-to-cve-2024-26248-and-cve-2024-29056-6e661d4f-799a-4217-b948-be0a1943fef1\">\u30b5\u30dd\u30fc\u30c8\u6587\u66f8<\/a>\u3067\u6b21\u306e\u3088\u3046\u306b\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<blockquote><p>\nThe Windows security updates released on or after April 9, 2024 address elevation of privilege vulnerabilities with the Kerberos PAC Validation Protocol. The Privilege Attribute Certificate (PAC) is an extension to Kerberos service tickets. It contains information about the authenticating user and their privileges. This update fixes a vulnerability where the user of the process can spoof the signature to bypass PAC signature validation security checks added in KB5020805: How to manage Kerberos protocol changes related to CVE-2022-37967.<\/p>\n<p>2024\u5e744\u67089\u65e5\u4ee5\u964d\u306b\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u308bWindows\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u3001Kerberos PAC\u691c\u8a3c\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u95a2\u3059\u308b\u7279\u6a29\u6607\u683c\u306e\u8106\u5f31\u6027\u306b\u5bfe\u51e6\u3057\u3066\u3044\u307e\u3059\u3002\u7279\u6a29\u5c5e\u6027\u8a3c\u660e\u66f8(PAC)\u306f\u3001Kerberos\u30b5\u30fc\u30d3\u30b9\u30c1\u30b1\u30c3\u30c8\u306e\u62e1\u5f35\u6a5f\u80fd\u3067\u3059\u3002\u3053\u306e\u8a3c\u660e\u66f8\u306b\u306f\u3001\u8a8d\u8a3c\u30e6\u30fc\u30b6\u30fc\u3068\u305d\u306e\u6a29\u9650\u306b\u95a2\u3059\u308b\u60c5\u5831\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u306f\u3001\u30d7\u30ed\u30bb\u30b9\u306e\u30e6\u30fc\u30b6\u30fc\u304c\u7f72\u540d\u3092\u507d\u88c5\u3057\u3066\u3001KB5020805\u3067\u8ffd\u52a0\u3055\u308c\u305fPAC\u7f72\u540d\u691c\u8a3c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c1\u30a7\u30c3\u30af\u3092\u30d0\u30a4\u30d1\u30b9\u3067\u304d\u308b\u8106\u5f31\u6027\u304c\u4fee\u6b63\u3055\u308c\u3066\u3044\u307e\u3059\u3002\n<\/p><\/blockquote>\n<p>\u305f\u3060\u30572024\u5e744\u6708\u306e\u6708\u4f8b\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u3060\u3051\u3067\u306f\u3053\u306e\u4e0d\u5177\u5408\u306f\u4fee\u6b63\u3055\u308c\u305a\u3001\u5b8c\u5168\u306b\u7de9\u548c\u3059\u308b\u306b\u306f\u74b0\u5883\u304c\u66f4\u65b0\u3055\u308c\u305f\u3042\u3068\u3001\u5f37\u5236\u30e2\u30fc\u30c9\u306b\u79fb\u884c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059(\u4ee5\u4e0b\u306e\u6709\u52b9\u5316\u306e\u624b\u9806)\u3002<\/p>\n<ul>\n<li>\u66f4\u65b0\uff1aWindows\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3068Windows\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f2024\u5e744\u67089\u65e5\u4ee5\u964d\u306b\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u305fWindows\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u66f4\u65b0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<\/li>\n<li>\u76e3\u8996\uff1a\u4e92\u63db\u30e2\u30fc\u30c9\u3067\u306f\u3001\u66f4\u65b0\u3055\u308c\u3066\u3044\u306a\u3044\u30c7\u30d0\u30a4\u30b9\u3092\u8b58\u5225\u3059\u308b\u305f\u3081\u306e\u76e3\u67fb\u30a4\u30d9\u30f3\u30c8\u304c\u8868\u793a\u3055\u308c\u308b\u3002\u3002<\/li>\n<li><strong>\u6709\u52b9\u5316<\/strong>\uff1a\u5f37\u5236\u30e2\u30fc\u30c9\u304c\u74b0\u5883\u3067\u5b8c\u5168\u306b\u6709\u52b9\u306b\u306a\u308b\u3068\u3001CVE-2024-26248\u304a\u3088\u3073CVE-2024-29056 \u3067\u8aac\u660e\u3055\u308c\u3066\u3044\u308b\u8106\u5f31\u6027\u304c\u7de9\u548c\u3055\u308c\u308b\u3002<\/li>\n<\/ul>\n<p>\u73fe\u5728\u306f\u5bfe\u7b56\u306e\u521d\u671f\u5c0e\u5165\u6bb5\u968e\u3067\u3001\u4eca\u5f8c\u4ee5\u4e0b\u306e\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u306b\u5f93\u3063\u3066\u5909\u66f4\u304c\u884c\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li>2024\u5e744\u67089\u65e5: \u521d\u671f\u5c55\u958b\u30d5\u30a7\u30fc\u30ba - \u4e92\u63db\u6027\u30e2\u30fc\u30c9<\/li>\n<li>2024\u5e7410\u670815\u65e5: \u5f37\u5236\u30e2\u30fc\u30c9\u304c\u30c7\u30d5\u30a9\u30eb\u30c8\u6bb5\u968e<\/li>\n<li>2025\u5e744\u67088\u65e5 \u5f37\u5236\u6bb5\u968e<\/li>\n<\/ul>\n<p>\u8106\u5f31\u6027\u306e\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u516c\u5f0f\u30b5\u30dd\u30fc\u30c8\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<a href=\"https:\/\/support.microsoft.com\/en-us\/topic\/kb5037754-how-to-manage-pac-validation-changes-related-to-cve-2024-26248-and-cve-2024-29056-6e661d4f-799a-4217-b948-be0a1943fef1\">KB5037754<\/a>\u3067\u78ba\u8a8d\u53ef\u80fd\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Microsoft\u304c\u5148\u9031\u30ea\u30ea\u30fc\u30b9\u3057\u305fWindows 11\/10\u7528\u306e\u6708\u4f8b\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u3001KB5036893(Win11)\u3084KB5036892(Win10)\u306a\u3069\u3067\u306f\u3001Kerberos PAC\u8a8d\u8a3c\u306b\u95a2\u9023\u3057\u305f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8106\u5f31\u6027\u306e [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":120758,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[3],"tags":[87],"class_list":["post-120757","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-windows","tag-microsoft"],"_links":{"self":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts\/120757","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/comments?post=120757"}],"version-history":[{"count":0,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts\/120757\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/media\/120758"}],"wp:attachment":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/media?parent=120757"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/categories?post=120757"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/tags?post=120757"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}