{"id":124224,"date":"2022-07-27T18:23:40","date_gmt":"2022-07-28T01:23:40","guid":{"rendered":"https:\/\/unit42.paloaltonetworks.com\/?p=124224"},"modified":"2022-07-27T18:23:40","modified_gmt":"2022-07-28T01:23:40","slug":"microsoft-cve-2022-26925-etc","status":"publish","type":"post","link":"https:\/\/origin-unit42.paloaltonetworks.com\/ja\/microsoft-cve-2022-26925-etc\/","title":{"rendered":"\u8105\u5a01\u306b\u95a2\u3059\u308b\u60c5\u5831: Microsoft\u88fd\u54c1\u306e\u91cd\u5927\u8106\u5f31\u6027(CVE-2022-26809\u3001CVE-2022-26923\u3001CVE-2022-26925)"},"content":{"rendered":"<h2><a id=\"post-124224-_4lt92rr5muov\"><\/a>\u6982\u8981<\/h2>\n<p>Microsoft\u306f2022\u5e74<a href=\"https:\/\/msrc.microsoft.com\/update-guide\/releaseNote\/2022-Apr\">4\u6708<\/a>\u304a\u3088\u3073<a href=\"https:\/\/msrc.microsoft.com\/update-guide\/releaseNote\/2022-May\">5\u6708<\/a>\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3001\u4ee5\u4e0b\u306e\u8106\u5f31\u6027\u3092\u542b\u3080\u8907\u6570\u306e\u91cd\u5927\u306a\u8106\u5f31\u6027\u306b\u5bfe\u3059\u308b\u4fee\u6b63\u3092\u63d0\u4f9b\u3057\u307e\u3057\u305f\u3002<\/p>\n<ul>\n<li><a href=\"https:\/\/cve.mitre.org\/cgi-bin\/cvename.cgi?name=CVE-2022-26809\">CVE-2022-26809<\/a>: \u672a\u8a31\u53ef\u306e\u653b\u6483\u8005\u304c\u3053\u306e\u8106\u5f31\u6027\u3092\u5229\u7528\u3057\u3001\u7279\u5225\u306b\u7d30\u5de5\u3057\u305f\u30ea\u30e2\u30fc\u30c8\u30d7\u30ed\u30b7\u30fc\u30b8\u30e3\u30b3\u30fc\u30eb (RPC) \u3092\u9001\u4fe1\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u30ea\u30e2\u30fc\u30c8\u304b\u3089\u8106\u5f31\u306a\u30c7\u30d0\u30a4\u30b9\u4e0a\u3067\u4efb\u610f\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3067\u304d\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li><a href=\"https:\/\/cve.mitre.org\/cgi-bin\/cvename.cgi?name=CVE-2022-26923\">CVE-2022-26923<\/a>:\u300cActive Directory Certificate Services\u300d\u306e\u30b5\u30fc\u30d0\u30fc \u30ed\u30fc\u30eb\u304c\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u305f\u30c7\u30d5\u30a9\u30eb\u30c8\u306e Active Directory\u74b0\u5883\u306b\u304a\u3044\u3066\u3001\u6a29\u9650\u306e\u4f4e\u3044\u30e6\u30fc\u30b6\u30fc\u304c\u30c9\u30e1\u30a4\u30f3\u7ba1\u7406\u8005\u306b\u6a29\u9650\u3092\u6607\u683c\u3067\u304d\u307e\u3059\u3002<\/li>\n<li><a href=\"https:\/\/cve.mitre.org\/cgi-bin\/cvename.cgi?name=CVE-2022-26925\">CVE-2022-26925<\/a>: \u672a\u8a8d\u8a3c\u306e\u653b\u6483\u8005\u304c\u3001Windows NT LAN Manager (NTLM) \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4ecb\u3057\u3001\u30c9\u30e1\u30a4\u30f3 \u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3092\u30ea\u30e2\u30fc\u30c8\u304b\u3089\u60aa\u7528\u3057\u3066\u5f37\u5236\u7684\u306b\u8a8d\u8a3c\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ul>\n<p>\u3053\u308c\u3089\u306e\u554f\u984c\u306b\u5bfe\u51e6\u3059\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u9069\u7528\u3092\u5f37\u304f\u304a\u52e7\u3081\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<a href=\"https:\/\/www.paloaltonetworks.jp\/network-security\/threat-prevention\">\u8105\u5a01\u9632\u5fa1<\/a>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u3092\u3082\u3064<a href=\"https:\/\/www.paloaltonetworks.jp\/network-security\/next-generation-firewall\">\u6b21\u4e16\u4ee3<\/a>\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3067\u4fdd\u8b77\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001<a href=\"https:\/\/www.paloaltonetworks.jp\/cortex\/cortex-xdr\">Cortex XDR<\/a>\u305d\u306e\u4ed6\u306e\u88fd\u54c1\u306b\u3088\u308b\u4fdd\u8b77\u3092\u53d7\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n<table style=\"width: 83.4681%;\">\n<tbody>\n<tr>\n<td style=\"width: 22.0503%;\"><span style=\"font-weight: 400;\">\u672c\u7a3f\u3067\u6271\u3046CVE<\/span><\/td>\n<td style=\"width: 202.708%;\"><span style=\"font-weight: 400;\">CVE-2022-26809, CVE-2022-26923, CVE-2022-26925<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u76ee\u6b21<\/h2>\n<p><a href=\"#post-124224-_5hnyzweu5uik\">\u5f71\u97ff\u3092\u53d7\u3051\u308b\u30d0\u30fc\u30b8\u30e7\u30f3<\/a><br \/>\n<a href=\"#post-124224-_2vsktbo0pyu4\">CVE-2022-26809\u3001CVE-2022-26923\u3001CVE-2022-26925\u306e\u7de9\u548c\u7b56<\/a><br \/>\n<a href=\"#post-124224-_omrajredovy\">\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8<\/a><br \/>\n<a href=\"#post-124224-_xrtic6xk9oin\">\u7d50\u8ad6<\/a><br \/>\n<a href=\"#post-124224-_570cbe1pdhwx\">\u8ffd\u52a0\u30ea\u30bd\u30fc\u30b9<\/a><\/p>\n<h2><a id=\"post-124224-_5hnyzweu5uik\"><\/a>\u5f71\u97ff\u3092\u53d7\u3051\u308b\u30d0\u30fc\u30b8\u30e7\u30f3<\/h2>\n<h3><a id=\"post-124224-_49eobx5cez3j\"><\/a>CVE-2022-26809<\/h3>\n<p>Microsoft Windows \u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0\u306e\u4ee5\u4e0b\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306fCVE-2022-26809\u306b\u5bfe\u3057\u8106\u5f31\u3067\u3059\u3002<\/p>\n<p>Windows 7 for 32-bit systems Service Pack 1<br \/>\nWindows 7 for x64-based systems Service Pack 1<br \/>\nWindows 8.1 for 32-bit systems<br \/>\nWindows RT 8.1<br \/>\nWindows 8.1 for x64-based systems<br \/>\nWindows 10 Version 20H2 for ARM64-based systems<br \/>\nWindows 10 Version 1909 for ARM64-based systems<br \/>\nWindows 10 Version 1809 for x64-based systems<br \/>\nWindows 10 for 32-bit systems<br \/>\nWindows 10 Version 21H2 for x64-based systems<br \/>\nWindows 10 Version 21H2 for ARM64-based systems<br \/>\nWindows 10 Version 21H2 for 32-bit systems<br \/>\nWindows 10 Version 1809 for 32-bit systems<br \/>\nWindows 10 Version 21H1 for 32-bit systems<br \/>\nWindows 10 Version 21H1 for ARM64-based systems<br \/>\nWindows 10 Version 21H1 for x64-based systems<br \/>\nWindows 10 Version 20H2 for 32-bit systems<br \/>\nWindows 10 Version 20H2 for x64-based systems<br \/>\nWindows 10 Version 1607 for x64-based systems<br \/>\nWindows 10 Version 1607 for 32-bit systems<br \/>\nWindows 10 for x64-based systems<br \/>\nWindows 10 Version 1909 for x64-based systems<br \/>\nWindows 10 Version 1909 for 32-bit systems<br \/>\nWindows 10 Version 1809 for ARM64-based systems<br \/>\nWindows 11 for ARM64-based systems<br \/>\nWindows 11 for x64-based systems<br \/>\nWindows Server 2008 R2 for x64-based systems Service Pack 1 (Server Core installation)<br \/>\nWindows Server 2008 R2 for x64-based systems Service Pack 1<br \/>\nWindows Server 2008 for x64-based systems Service Pack 2 (Server Core installation)<br \/>\nWindows Server 2008 for x64-based systems Service Pack 2<br \/>\nWindows Server 2008 for 32-bit systems Service Pack 2 (Server Core installation)<br \/>\nWindows Server 2008 for 32-bit systems Service Pack 2<br \/>\nWindows Server 2012 R2 (Server Core installation)<br \/>\nWindows Server 2012 R2<br \/>\nWindows Server 2012 (Server Core installation)<br \/>\nWindows Server 2012<br \/>\nWindows Server 2016<br \/>\nWindows Server 2016 (Server Core installation)<br \/>\nWindows Server, version 20H2 (Server Core Installation)<br \/>\nWindows Server 2019 (Server Core installation)<br \/>\nWindows Server 2019<br \/>\nWindows Server 2022 (Server Core installation)<br \/>\nWindows Server 2022<\/p>\n<h3><a id=\"post-124224-_sjbdl43zzsyk\"><\/a>CVE-2022-26923<\/h3>\n<p>Microsoft Windows \u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0\u306e\u4ee5\u4e0b\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306fCVE-2022-26923\u306b\u5bfe\u3057\u8106\u5f31\u3067\u3059\u3002<\/p>\n<p>Windows Server 2012 R2 (Server Core installation)<br \/>\nWindows Server 2012 R2<br \/>\nWindows RT 8.1<br \/>\nWindows 8.1 for x64-based systems<br \/>\nWindows 8.1 for 32-bit systems<br \/>\nWindows Server 2016 (Server Core installation)<br \/>\nWindows Server 2016<br \/>\nWindows 10 Version 1607 for x64-based systems<br \/>\nWindows 10 Version 1607 for 32-bit systems<br \/>\nWindows 10 for x64-based systems<br \/>\nWindows 10 for 32-bit systems<br \/>\nWindows 10 Version 21H2 for x64-based systems<br \/>\nWindows 10 Version 21H2 for ARM64-based systems<br \/>\nWindows 10 Version 21H2 for 32-bit systems<br \/>\nWindows 11 for ARM64-based systems<br \/>\nWindows 11 for x64-based systems<br \/>\nWindows Server, version 20H2 (Server Core Installation)<br \/>\nWindows 10 Version 20H2 for ARM64-based systems<br \/>\nWindows 10 Version 20H2 for 32-bit systems<br \/>\nWindows 10 Version 20H2 for x64-based systems<br \/>\nWindows Server 2022 (Server Core installation)<br \/>\nWindows Server 2022<br \/>\nWindows 10 Version 21H1 for 32-bit systems<br \/>\nWindows 10 Version 21H1 for ARM64-based systems<br \/>\nWindows 10 Version 21H1 for x64-based systems<br \/>\nWindows 10 Version 1909 for ARM64-based systems<br \/>\nWindows 10 Version 1909 for x64-based systems<br \/>\nWindows 10 Version 1909 for 32-bit systems<br \/>\nWindows Server 2019 (Server Core installation)<br \/>\nWindows Server 2019<br \/>\nWindows 10 Version 1809 for ARM64-based systems<br \/>\nWindows 10 Version 1809 for x64-based systems<br \/>\nWindows 10 Version 1809 for 32-bit systems<\/p>\n<h3><a id=\"post-124224-_p6z4oucvyx0h\"><\/a>CVE-2022-26925<\/h3>\n<p>Microsoft Windows \u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0\u306e\u4ee5\u4e0b\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306fCVE-2022-26925\u306b\u5bfe\u3057\u8106\u5f31\u3067\u3059\u3002<\/p>\n<p>Windows Server 2012 R2 (Server Core installation)<br \/>\nWindows Server 2012 R2<br \/>\nWindows Server 2012 (Server Core installation)<br \/>\nWindows Server 2012<br \/>\nWindows Server 2008 R2 for x64-based systems Service Pack 1 (Server Core installation)<br \/>\nWindows Server 2008 R2 for x64-based systems Service Pack 1<br \/>\nWindows Server 2008 for x64-based systems Service Pack 2 (Server Core installation)<br \/>\nWindows Server 2008 for x64-based systems Service Pack 2<br \/>\nWindows Server 2008 for 32-bit systems Service Pack 2 (Server Core installation)<br \/>\nWindows Server 2008 for 32-bit systems Service Pack 2<br \/>\nWindows RT 8.1<br \/>\nWindows 8.1 for x64-based systems<br \/>\nWindows 8.1 for 32-bit systems<br \/>\nWindows 7 for x64-based systems Service Pack 1<br \/>\nWindows 7 for 32-bit systems Service Pack 1<br \/>\nWindows Server 2016 (Server Core installation)<br \/>\nWindows Server 2016<br \/>\nWindows 10 Version 1607 for x64-based systems<br \/>\nWindows 10 Version 1607 for 32-bit systems<br \/>\nWindows 10 for x64-based systems<br \/>\nWindows 10 for 32-bit systems<br \/>\nWindows 10 Version 21H2 for x64-based systems<br \/>\nWindows 10 Version 21H2 for ARM64-based systems<br \/>\nWindows 10 Version 21H2 for 32-bit systems<br \/>\nWindows 11 for ARM64-based systems<br \/>\nWindows 11 for x64-based systems<br \/>\nWindows Server, version 20H2 (Server Core Installation)<br \/>\nWindows 10 Version 20H2 for ARM64-based systems<br \/>\nWindows 10 Version 20H2 for 32-bit systems<br \/>\nWindows 10 Version 20H2 for x64-based systems<br \/>\nWindows Server 2022 (Server Core installation)<br \/>\nWindows Server 2022<br \/>\nWindows 10 Version 21H1 for 32-bit systems<br \/>\nWindows 10 Version 21H1 for ARM64-based systems<br \/>\nWindows 10 Version 21H1 for x64-based systems<br \/>\nWindows 10 Version 1909 for ARM64-based systems<br \/>\nWindows 10 Version 1909 for x64-based systems<br \/>\nWindows 10 Version 1909 for 32-bit systems<br \/>\nWindows Server 2019 (Server Core installation)<br \/>\nWindows Server 2019<br \/>\nWindows 10 Version 1809 for ARM64-based systems<br \/>\nWindows 10 Version 1809 for x64-based systems<br \/>\nWindows 10 Version 1809 for 32-bit systems<\/p>\n<h2><a id=\"post-124224-_2vsktbo0pyu4\"><\/a>CVE-2022-26809\u3001CVE-2022-26923\u3001CVE-2022-26925\u306e\u7de9\u548c\u7b56<\/h2>\n<p>Microsoft\u306f<a href=\"https:\/\/msrc.microsoft.com\/update-guide\/en-US\/vulnerability\/CVE-2022-26809\">CVE-2022-26809<\/a>\u3001<a href=\"https:\/\/msrc.microsoft.com\/update-guide\/en-US\/vulnerability\/CVE-2022-26923\">CVE-2022-26923<\/a>\u3001<a href=\"https:\/\/msrc.microsoft.com\/update-guide\/en-US\/vulnerability\/CVE-2022-26925\">CVE-2022-26925<\/a>\u7528\u306e\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u3059\u3067\u306b\u516c\u958b\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u30893\u3064\u306e\u8106\u5f31\u6027\u3068\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306e\u8a73\u7d30\u306f\u3059\u3079\u3066\u516c\u958b\u3055\u308c\u3066\u304a\u308a\u3001CVE-2022-26925\u306f\u3059\u3067\u306b\u5b9f\u969b\u306e\u60aa\u7528\u304c\u78ba\u8a8d\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u306a\u308b\u3079\u304f\u65e9\u304f\u30b7\u30b9\u30c6\u30e0\u306b\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n<h2><a id=\"post-124224-_omrajredovy\"><\/a>\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8<\/h2>\n<h3><a id=\"post-124224-_o7j719r0ztey\"><\/a>CVE-2022-26809 \u2013 RPC\u30ea\u30e2\u30fc\u30c8\u30b3\u30fc\u30c9\u5b9f\u884c\u306e\u8106\u5f31\u6027<\/h3>\n<p>Microsoft\u306e4\u6708\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u306f\u30ea\u30e2\u30fc\u30c8\u30b3\u30fc\u30c9\u5b9f\u884c\u306b\u3064\u306a\u304c\u308a\u3046\u308b\u6df1\u523b\u306aRPC\u306e\u8106\u5f31\u6027\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u8106\u5f31\u6027\u304c\u60aa\u7528\u3055\u308c\u308b\u3068\u3001\u653b\u6483\u8005\u306f\u30ea\u30e2\u30fc\u30c8\u304b\u3089\u306e\u653b\u6483\u5bfe\u8c61\u9818\u57df\u3092\u53d6\u5f97\u3057\u3001Windows SMB\u30b5\u30fc\u30d3\u30b9\u3092\u30ea\u30e2\u30fc\u30c8\u304b\u3089\u653b\u6483\u3057\u3066\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u8105\u5a01\u306fWindows SMB \u30b5\u30fc\u30d3\u30b9\u306b\u9650\u5b9a\u3055\u308c\u307e\u305b\u3093\u3002\u8106\u5f31\u306aRPC\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u4f7f\u3046\u307b\u304b\u306e\u30b5\u30fc\u30d3\u30b9\u306b\u3082\u5f71\u97ff\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>2022\u5e745\u67081\u65e5\u306b\u79c1\u305f\u3061\u306fGitHub\u4e0a\u306bPoC\uff08\u6982\u5ff5\u5b9f\u8a3c\u30b3\u30fc\u30c9: Proof of Concept\uff09\u304c\u516c\u958b\u3055\u308c\u305f\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3059\u3002\u540c\u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u306fCVE-2022-26809\u306e\u5206\u6790\u3092\u884c\u3044\u3001\u8106\u5f31\u306a\u95a2\u6570OSF_SCALL::GetCoalescedBuffer\u3092\u30c8\u30ea\u30ac\u30fc\u3059\u308bPoC\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f\u3002\u3053\u306ePoC\u306f<a href=\"https:\/\/github.com\/microsoft\/Windows-classic-samples\/blob\/main\/Samples\/Win7Samples\/netds\/rpc\/hello\">Microsoft<\/a>\u306eRPC\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u300cHello\u300d\u3092\u30d9\u30fc\u30b9\u306b\u4f5c\u6210\u3055\u308c\u305f\u3082\u306e\u3067\u3059\u3002RPC\u3092\u4f7f\u3046\u30d7\u30ed\u30b0\u30e9\u30e0 \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u306b\u306fMicrosoft Interface Definition Language (MIDL) \u306b\u3088\u308b\u5b9a\u7fa9\u3068MIDL\u30b3\u30f3\u30d1\u30a4\u30e9\u306b\u3088\u308b\u30b3\u30f3\u30d1\u30a4\u30eb\u304c\u5fc5\u8981\u3068\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u5f53\u8a72\u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u306fIDL\u30d5\u30a1\u30a4\u30eb\u306b\u65b0\u305f\u306a\u30d1\u30a4\u30d7\u578b\u3068\u8907\u6570\u306e\u95a2\u6570\u3092\u8ffd\u52a0\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u8ffd\u52a0\u306e\u7406\u7531\u306f\u8106\u5f31\u6027\u306e\u30c8\u30ea\u30ac\u30fc\u306b\u30b5\u30fc\u30d0\u30fc\u5074\u3067\u306e\u30d1\u30a4\u30d7\u306e\u5229\u7528\u304c\u5fc5\u8981\u306a\u305f\u3081\u3067\u3059\u3002\u95a2\u9023\u3059\u308b\u5909\u66f4\u3092\u56f31\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_124221\" aria-describedby=\"caption-attachment-124221\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-124222 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/07\/word-image-112.png\" alt=\"RPC\u3092\u4f7f\u3046\u30d7\u30ed\u30b0\u30e9\u30e0 \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u306f\u3001Microsoft Interface Definition Language (MIDL) \u306b\u3088\u308b\u5b9a\u7fa9\u3068MIDL\u30b3\u30f3\u30d1\u30a4\u30e9\u306b\u3088\u308b\u30b3\u30f3\u30d1\u30a4\u30eb\u304c\u5fc5\u8981\u3068\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u3001\u5f53\u8a72\u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u306fIDL\u30d5\u30a1\u30a4\u30eb\u306b\u65b0\u305f\u306a\u30d1\u30a4\u30d7\u578b\u3068\u8907\u6570\u306e\u95a2\u6570\u3092\u8ffd\u52a0\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u304c\u8ffd\u52a0\u3055\u308c\u305f\u7406\u7531\u306f\u3001\u8106\u5f31\u6027\u306e\u30c8\u30ea\u30ac\u30fc\u306b\u30b5\u30fc\u30d0\u30fc\u5074\u3067\u306e\u30d1\u30a4\u30d7\u306e\u5229\u7528\u304c\u5fc5\u8981\u306a\u305f\u3081\u3067\u3059\u3002\u95a2\u9023\u3059\u308b\u5909\u66f4\u3092\u3053\u306e\u56f3\u306b\u793a\u3057\u307e\u3059\u3002\" width=\"900\" height=\"366\" \/><figcaption id=\"caption-attachment-124221\" class=\"wp-caption-text\">\u56f31. IDL\u30d5\u30a1\u30a4\u30eb\u306e\u5909\u66f4<\/figcaption><\/figure>\n<p>\u3053\u306ePoC\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u30c7\u30fc\u30bf\u9001\u4fe1\u306bimpacket.dcerpc.v5.rpcrt\u3092\u5229\u7528\u3057\u307e\u3059\u3002\u3055\u3089\u306b\u3053\u306e\u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u306frpcrt\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u30d1\u30b1\u30c3\u30c8\u51e6\u7406\u30ed\u30b8\u30c3\u30af\u3092\u5909\u66f4\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u3053\u306ePoC\u306f\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3055\u308c\u305fRPC\u30b5\u30fc\u30d0\u30fc\u3067\u306e\u307f\u5b9f\u884c\u53ef\u80fd\u3067\u3001\u672c\u8106\u5f31\u6027\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u6210\u529f\u306b\u306f\u30b5\u30fc\u30d0\u30fc\u5074\u306b\u7279\u5b9a\u306e\u8a2d\u5b9a\u304c\u5fc5\u8981\u3067\u3059\u304c\u3001\u653b\u6483\u8005\u304c\u3053\u306ePoC\u3092\u5909\u66f4\u3057\u3066\u30c7\u30d5\u30a9\u30eb\u30c8\u72b6\u614b\u306eWindows\u30b5\u30fc\u30d3\u30b9\u306b\u5bfe\u3057\u3066\u3082\u5b9f\u884c\u53ef\u80fd\u306a\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3092\u4f5c\u6210\u3059\u308b\u53ef\u80fd\u6027\u306f\u3042\u308a\u307e\u3059\u3002\u79c1\u305f\u3061\u306fCVE-2022-26809\u306b\u5bfe\u3059\u308b\u4fee\u6b63\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u65e9\u6025\u306b\u9069\u7528\u3059\u308b\u3053\u3068\u3092\u5f37\u304f\u63a8\u5968\u3057\u307e\u3059\u3002<\/p>\n<h3><a id=\"post-124224-_qv44u7f3i8a8\"><\/a>CVE-2022-26923 \u2013 Active Directory\u30c9\u30e1\u30a4\u30f3\u30b5\u30fc\u30d3\u30b9\u306b\u304a\u3051\u308b\u7279\u6a29\u6607\u683c\u306e\u8106\u5f31\u6027<\/h3>\n<p>\u3053\u306e\u8106\u5f31\u6027\u306b\u3088\u308a\u300cActive Directory Certificate Services\u300d\u306e\u30b5\u30fc\u30d0\u30fc \u30ed\u30fc\u30eb\u304c\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u305f\u30c7\u30d5\u30a9\u30eb\u30c8\u306e Active Directory\u74b0\u5883\u306b\u304a\u3044\u3066\u3001\u6a29\u9650\u306e\u4f4e\u3044\u30e6\u30fc\u30b6\u30fc\u304c\u30c9\u30e1\u30a4\u30f3\u7ba1\u7406\u8005\u306b\u6a29\u9650\u3092\u6607\u683c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306f\u507d\u306e\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9dNSHostName\u3092\u4f7f\u3063\u3066\u6709\u52b9\u306a\u8a3c\u660e\u66f8\u3092\u53d6\u5f97\u3057\u3001\u305d\u306e\u8a3c\u660e\u66f8\u3092\u3053\u306e\u507d\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306b\u5bfe\u3057\u3066\u8a8d\u8a3c\u3059\u308b\u3053\u3068\u3067\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u6a29\u9650\u3092\u53d6\u5f97\u3059\u308b\u30ed\u30b8\u30c3\u30af\u4e0a\u306e\u554f\u984c\u3067\u3059\u3002Microsoft\u306f5\u6708\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u3067CVE-2022-26923\u3092\u4fee\u6b63\u3057\u307e\u3057\u305f\u304c\u3001\u5f53\u8a72\u306e\u8106\u5f31\u6027\u3068\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306e\u8a73\u7d30\u306f\u4e00\u822c\u516c\u958b\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u306a\u308b\u3079\u304f\u65e9\u304f\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n<h3><a id=\"post-124224-_wwujsg4na91e\"><\/a>CVE-2022-26925 \u2013 Windows LSA \u306e\u306a\u308a\u3059\u307e\u3057\u306e\u8106\u5f31\u6027<\/h3>\n<p>\u3053\u306e\u8106\u5f31\u6027\u306f\u3001\u672a\u8a8d\u8a3c\u306e\u653b\u6483\u8005\u304cLSARPC\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\u4e0a\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u3001NTLM\u3092\u4f7f\u3063\u3066\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306b\u5bfe\u3057\u653b\u6483\u8005\u3092\u8a8d\u8a3c\u3059\u308b\u3088\u3046\u5f37\u8981\u3067\u304d\u308b\u3068\u3044\u3046\u3082\u306e\u3067\u3059\u3002NTLM\u30ea\u30ec\u30fc\u653b\u6483\u3067NTLM\u30cf\u30c3\u30b7\u30e5\u3092\u53d6\u5f97\u3057\u305f\u653b\u6483\u8005\u306f\u3001\u6f0f\u3048\u3044\u3057\u305f\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306eNTLM\u30cf\u30c3\u30b7\u30e5\u3092\u4f7f\u3063\u3066\u3055\u3089\u306b\u30b7\u30b9\u30c6\u30e0\u3092\u653b\u6483\u53ef\u80fd\u3067\u3059\u3002CVE-2022-26925\u306f\u5b9f\u969b\u306e\u60aa\u7528\u304c\u78ba\u8a8d\u3055\u308c\u3066\u304a\u308a\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3082\u516c\u958b\u3055\u308c\u3066\u3044\u307e\u3059\u3002Microsoft\u306f\u5f53\u8a72\u8106\u5f31\u6027\u30925\u6708\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u3067\u4fee\u6b63\u6e08\u307f\u3067\u3059\u3002\u306a\u308b\u3079\u304f\u65e9\u304f\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n<h2><a id=\"post-124224-_xrtic6xk9oin\"><\/a>\u7d50\u8ad6<\/h2>\n<p>CVE-2022-26809\u306f\u5e83\u304f\u653b\u6483\u306b\u60aa\u7528\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3053\u3068\u304b\u3089\u3001\u79c1\u305f\u3061\u306f\u73fe\u5728\u3082\u5f15\u304d\u7d9a\u304d\u96c6\u4e2d\u7684\u306b\u3053\u306e\u8106\u5f31\u6027\u3092\u76e3\u8996\u3057\u3066\u3044\u307e\u3059\u3002\u73fe\u5728\u5165\u624b\u53ef\u80fd\u306a\u60c5\u5831\u304b\u3089\u3053\u306e\u8106\u5f31\u6027\u306f\u5c06\u6765\u7684\u306b\u6df1\u523b\u306a\u5f71\u97ff\u3092\u53ca\u307c\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002RPC\u306fWindows\u3084Windows Server\u306e\u5404\u7a2e\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u5e83\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3057\u3001\u8106\u5f31\u6027\u306e\u3042\u308brpcrt4.dll\u306fMicrosoft\u306e\u30b5\u30fc\u30d3\u30b9\u306e\u307b\u304b\u306b\u3082\u3055\u307e\u3056\u307e\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002CVE-2022-26923\u3068CVE-2022-26925\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306f\u3059\u3067\u306b\u4e00\u822c\u516c\u958b\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304b\u3089\u3053\u308c\u3089\u306e\u8106\u5f31\u6027\u304c\u653b\u6483\u8005\u306b\u60aa\u7528\u3055\u308c\u308b\u306e\u306f\u6642\u9593\u306e\u554f\u984c\u3067\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u306f\u3053\u308c\u3089\u306e\u8106\u5f31\u6027\u304b\u3089\u306e\u4fdd\u8b77\u306b\u5fc5\u8981\u306a\u3059\u3079\u3066\u306e\u63aa\u7f6e\u3092\u8b1b\u3058\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u8105\u5a01\u9632\u5fa1\u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u304c\u6709\u52b9\u306a\u5f0a\u793eNGFW\u88fd\u54c1\u306f\u3053\u308c\u3089\u306e\u8106\u5f31\u6027\u306b\u95a2\u9023\u3059\u308b\u653b\u6483\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u30d6\u30ed\u30c3\u30af\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li>CVE-2022-26809\u306e\u30ab\u30d0\u30ec\u30c3\u30b8: \u8105\u5a01ID 92490 (Application and Threat content update 8557)<\/li>\n<li>CVE-2022-26923\u306e\u30ab\u30d0\u30ec\u30c3\u30b8: \u8105\u5a01ID 92548 (Application and Threat content update 8568)<\/li>\n<li>CVE-2022-26925\u306e\u30ab\u30d0\u30ec\u30c3\u30b8: \u8105\u5a01ID 92549 (Application and Threat content update 8568)<\/li>\n<\/ul>\n<p>Cortex\u88fd\u54c1\u3092\u3054\u5229\u7528\u4e2d\u306e\u304a\u5ba2\u69d8\u306f\u3001CVE-2022-26923\u304a\u3088\u3073CVE-2022-26925\u304b\u3089\u4fdd\u8b77\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2><a id=\"post-124224-_570cbe1pdhwx\"><\/a>\u8ffd\u52a0\u30ea\u30bd\u30fc\u30b9<\/h2>\n<p><a href=\"https:\/\/msrc.microsoft.com\/update-guide\/vulnerability\/CVE-2022-26809\">\u30ea\u30e2\u30fc\u30c8 \u30d7\u30ed\u30b7\u30fc\u30b8\u30e3 \u30b3\u30fc\u30eb \u30e9\u30f3\u30bf\u30a4\u30e0\u306e\u30ea\u30e2\u30fc\u30c8\u3067\u30b3\u30fc\u30c9\u304c\u5b9f\u884c\u3055\u308c\u308b\u8106\u5f31\u6027<\/a> \u2013 Microsoft<br \/>\n<a href=\"https:\/\/msrc.microsoft.com\/update-guide\/vulnerability\/CVE-2022-26923\">Active Directory Domain Services Elevation of Privilege Vulnerability<\/a> \u2013 Microsoft<br \/>\n<a href=\"https:\/\/research.ifcr.dk\/certifried-active-directory-domain-privilege-escalation-cve-2022-26923-9e098fe298f4\">Certifried: Active Directory Domain Privilege Escalation (CVE-2022\u201326923)<\/a> \u2013 IFCR<br \/>\n<a href=\"https:\/\/github.com\/topotam\/PetitPotam\">PetitPotam<\/a> \u2013 GitHub<br \/>\n<a href=\"https:\/\/www.bleepingcomputer.com\/news\/security\/microsoft-fixes-new-petitpotam-windows-ntlm-relay-attack-vector\/\">Microsoft fixes new PetitPotam Windows NTLM Relay attack vector<\/a> \u2013 BleepingComputer<br \/>\n<a href=\"https:\/\/msrc.microsoft.com\/update-guide\/vulnerability\/CVE-2022-26925\">Windows LSA \u306e\u306a\u308a\u3059\u307e\u3057\u306e\u8106\u5f31\u6027<\/a> \u2013 Microsoft<br \/>\n<a href=\"https:\/\/docs.microsoft.com\/ja-jp\/windows\/win32\/rpc\/rpc-start-page\">\u30ea\u30e2\u30fc\u30c8 \u30d7\u30ed\u30b7\u30fc\u30b8\u30e3\u547c\u3073\u51fa\u3057 (RPC)<\/a> \u2013 Microsoft<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u8981 Microsoft\u306f2022\u5e744\u6708\u304a\u3088\u30735\u6708\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3001\u4ee5\u4e0b\u306e\u8106\u5f31\u6027\u3092\u542b\u3080\u8907\u6570\u306e\u91cd\u5927\u306a\u8106\u5f31\u6027\u306b\u5bfe\u3059\u308b\u4fee\u6b63\u3092\u63d0\u4f9b\u3057\u307e\u3057\u305f\u3002 CVE-2022-26809: \u672a\u8a31\u53ef\u306e\u653b\u6483\u8005\u304c\u3053\u306e\u8106\u5f31\u6027\u3092\u5229\u7528\u3057\u3001\u7279\u5225<\/p>\n","protected":false},"author":57,"featured_media":134418,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[4469,4432,4470],"tags":[5541,5543,5545,5546,5051],"product_categories":[4346,4442,4448,4456],"coauthors":[3549,71,2070,1348],"class_list":["post-124224","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vulnerabilities","category-top-cyberthreats-ja","category-vulnerabilities-ja","tag-cve-2022-26809-ja","tag-cve-2022-26923-ja","tag-cve-2022-26925-ja","tag-microsoft","tag-microsoft-windows-ja","product_categories-advanced-threat-prevention","product_categories-advanced-threat-prevention-ja","product_categories-cortex-xdr-ja","product_categories-next-generation-firewall-ja"],"yoast_head":"<!-- This site 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