{"id":11327,"date":"2021-07-06T11:34:17","date_gmt":"2021-07-06T02:34:17","guid":{"rendered":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/?p=11327"},"modified":"2023-10-17T11:50:56","modified_gmt":"2023-10-17T02:50:56","slug":"windows%e3%81%ae%e5%8d%b0%e5%88%b7%e3%82%b9%e3%83%97%e3%83%bc%e3%83%a9%e3%83%bc%e3%81%ae%e8%84%86%e5%bc%b1%e6%80%a7%ef%bc%88cve-2021-34527%ef%bc%89%e3%81%ab%e9%96%a2%e3%81%99%e3%82%8b%e6%b3%a8","status":"publish","type":"post","link":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/public\/heads-up\/windows%e3%81%ae%e5%8d%b0%e5%88%b7%e3%82%b9%e3%83%97%e3%83%bc%e3%83%a9%e3%83%bc%e3%81%ae%e8%84%86%e5%bc%b1%e6%80%a7%ef%bc%88cve-2021-34527%ef%bc%89%e3%81%ab%e9%96%a2%e3%81%99%e3%82%8b%e6%b3%a8\/","title":{"rendered":"Windows\u306e\u5370\u5237\u30b9\u30d7\u30fc\u30e9\u30fc\u306e\u8106\u5f31\u6027\uff08CVE-2021-34527\uff09\u306b\u95a2\u3059\u308b\u6ce8\u610f\u559a\u8d77"},"content":{"rendered":"\n<p>I. \u6982\u8981<br \/>2021\u5e747\u67081\u65e5\uff08\u73fe\u5730\u6642\u9593\uff09\u306b\u3001\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u304b\u3089Windows\u306e\u5370\u5237\u30b9\u30d7\u30fc\u30e9\u30fc\u306e\u8106\u5f31\u6027\uff08CVE-2021-34527\uff09\u306b\u95a2\u3059\u308b\u60c5\u5831\u304c\u516c\u958b\u3055\u308c\u307e\u3057\u305f\u3002<br \/>\u8106\u5f31\u6027\u3092\u60aa\u7528\u3055\u308c\u308b\u3068\u3001\u5f71\u97ff\u3092\u53d7\u3051\u308bWindows\u30b7\u30b9\u30c6\u30e0\u4e0a\u3067\u8a8d\u8a3c\u3055\u308c\u305f\u30e6\u30fc\u30b6\u30fc\u304cSYSTEM\u6a29\u9650\u3067\u4efb\u610f\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<br \/>\u4f8b\u3048\u3070\u3001\u653b\u6483\u8005\u304c\u5185\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u4fb5\u5165\u3057\u3001\u30c9\u30e1\u30a4\u30f3\u30e6\u30fc\u30b6\u30fc\u306e\u6a29\u9650\u3092\u53d6\u5f97\u3057\u305f\u5f8c\u306b\u3001\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u4e0a\u3067\u4efb\u610f\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3057\u3001\u30c9\u30e1\u30a4\u30f3\u7ba1\u7406\u8005\u6a29\u9650\u306e\u4fb5\u5bb3\u304b\u3089\u66f4\u306a\u308b\u653b\u6483\u3092\u884c\u3046\u306a\u3069\u306e\u6050\u308c\u304c\u3042\u308a\u307e\u3059\u3002<br \/>\u53c2\u8003\uff1a<a href=\"https:\/\/www.jpcert.or.jp\/at\/2021\/at210029.html\" target=\"_blank\" rel=\"noopener\">https:\/\/www.jpcert.or.jp\/at\/2021\/at210029.html<\/a><\/p>\n<p>\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u682a\u5f0f\u4f1a\u793e<br \/>Windows Print Spooler Remote Code Execution Vulnerability<br \/><a href=\"https:\/\/msrc.microsoft.com\/update-guide\/vulnerability\/CVE-2021-34527\" target=\"_blank\" rel=\"noopener\">https:\/\/msrc.microsoft.com\/update-guide\/vulnerability\/CVE-2021-34527<\/a><\/p>\n<p>JPCERT\/CC\u306f\u672c\u8106\u5f31\u6027\u306b\u95a2\u3059\u308b\u8a73\u7d30\u89e3\u8aac\u8a18\u4e8b\u3084\u5b9f\u8a3c\u30b3\u30fc\u30c9\u306e\u516c\u958b\u3092\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\u672c\u8106\u5f31\u6027\u304c\u653b\u6483\u306b\u60aa\u7528\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3053\u3068\u304b\u3089\u3001\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u306e\u60c5\u5831\u3092\u78ba\u8a8d\u3057\u3001\u901f\u3084\u304b\u306b\u56de\u907f\u7b56\u3084\u7de9\u548c\u7b56\u306e\u9069\u7528\u3092\u691c\u8a0e\u3059\u308b\u3068\u3068\u3082\u306b\u3001\u8106\u5f31\u6027\u3078\u306e\u5bfe\u7b56\u304c\u516c\u958b\u3055\u308c\u6b21\u7b2c\u3001\u9069\u7528\u3059\u308b\u3053\u3068\u3092\u63a8\u5968\u3044\u305f\u3057\u307e\u3059\u3002<\/p>\n<p><br \/>II. \u5bfe\u8c61<br \/>\u8106\u5f31\u6027\u306e\u5bfe\u8c61\u3068\u306a\u308b\u88fd\u54c1\u304a\u3088\u3073\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u6700\u65b0\u306e\u60c5\u5831\u306b\u3064\u3044\u3066\u306f\u3001\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u306e\u60c5\u5831\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u8106\u5f31\u6027\u306e\u5bfe\u8c61\u3068\u306a\u308b\u30b3\u30fc\u30c9\u306f\u3059\u3079\u3066\u306eWindows\u306b\u542b\u307e\u308c\u3066\u304a\u308a\u3001\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u3084\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30b7\u30b9\u30c6\u30e0\u304c\u8106\u5f31\u6027\u306e\u5f71\u97ff\u3092\u53d7\u3051\u308b\u6761\u4ef6\u306b\u3064\u3044\u3066\u305d\u308c\u305e\u308c\u89e3\u8aac\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"text_3\">** \u66f4\u65b0: 2021\u5e747\u67087\u65e5\u8ffd\u8a18 *******************************************************************************\n\u672c\u8106\u5f31\u6027\u306e\u5f71\u97ff\u3092\u53d7\u3051\u308b\u88fd\u54c1\u304a\u3088\u3073\u30d0\u30fc\u30b8\u30e7\u30f3\u306f\u6b21\u306e\u901a\u308a\u3067\u3059\u3002\n\n  - Windows Server\n  - Windows Server 2019\n  - Windows Server 2016\n  - Windows Server 2012 R2\n  - Windows Server 2012\n  - Windows Server 2008 R2\n  - Windows Server 2008\n  - Windows 10\n  - Windows RT 8.1\n  - Windows 8.1\n  - Windows 7\n*********************************************************************************************************<\/pre>\n<p><br \/>III. \u5bfe\u7b56<br \/>2021\u5e747\u67085\u65e5\u6642\u70b9\u3067\u3001\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u304b\u3089\u672c\u8106\u5f31\u6027\u3092\u4fee\u6b63\u3059\u308b\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u516c\u958b\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u304c\u3001\u6e96\u5099\u51fa\u6765\u6b21\u7b2c\u30ea\u30ea\u30fc\u30b9\u4e88\u5b9a\u3068\u306e\u3053\u3068\u3067\u3059\u3002<br \/>\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u304b\u3089\u306e\u60c5\u5831\u3092\u6ce8\u8996\u3057\u3001\u5bfe\u7b56\u306b\u95a2\u3059\u308b\u60c5\u5831\u304c\u516c\u958b\u3055\u308c\u6b21\u7b2c\u3001\u901f\u3084\u304b\u306a\u5bfe\u7b56\u5b9f\u65bd\u3092\u63a8\u5968\u3044\u305f\u3057\u307e\u3059\u3002<\/p>\n<p>\u306a\u304a\u3001\u65e2\u77e5\u306e\u8106\u5f31\u6027\u3078\u306e\u5bfe\u7b56\u3068\u3057\u3066\u3001\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u306f\u30012021\u5e746\u6708\u306b\u516c\u958b\u3055\u308c\u305f\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3082\u63a8\u5968\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"text_3\">** \u66f4\u65b0: 2021\u5e747\u67087\u65e5\u8ffd\u8a18 *******************************************************************************\n2021\u5e747\u67086\u65e5\uff08\u7c73\u56fd\u6642\u9593\uff09\u3001\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u304b\u3089\u672c\u8106\u5f31\u6027\u3092\u4fee\u6b63\u3059\u308b\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u516c\u958b\u3055\u308c\u307e\u3057\u305f\u3002<br \/>\u4eca\u56de\u306e\u4fee\u6b63\u306b\u306f\u3001\u9060\u9694\u304b\u3089\u306e\u30b3\u30fc\u30c9\u5b9f\u884c\u304c\u53ef\u80fd\u3068\u306a\u308b\u8106\u5f31\u6027\uff08CVE-2021-34527\uff09\u306b\u5bfe\u3059\u308b\u4fee\u6b63\u306b\u52a0\u3048\u3066\u30012021\u5e746\u6708\u306b\u4fee\u6b63\u3055\u308c\u305f\u5370\u5237\u30b9\u30d7\u30fc\u30e9\u30fc\u306e\u8106\u5f31\u6027\uff08CVE-2021-1675\uff09\u306e\u4fdd\u8b77\u3082\u542b\u307e\u308c\u308b\u3068\u306e\u3053\u3068\u3067\u3059\u3002\n\n\u306a\u304a\u3001Windows 10 version 1607\u3001Windows Server 2016\u3001Windows Server 2012\u306b\u3064\u3044\u3066\u306f\u307e\u3060\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u516c\u958b\u3055\u308c\u3066\u304a\u3089\u305a\u3001\u4eca\u5f8c\u516c\u958b\u3092\u4e88\u5b9a\u3057\u3066\u3044\u308b\u3068\u306e\u3053\u3068\u3067\u3059\u3002\n*********************************************************************************************************\n\n** \u66f4\u65b0: 2021\u5e747\u67088\u65e5\u8ffd\u8a18 *******************************************************************************\n2021\u5e747\u67087\u65e5\uff08\u7c73\u56fd\u6642\u9593\uff09\u3001\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u304b\u3089Windows 10 version 1607\u3001Windows Server 2016\u3001Windows Server 2012\u306b\u5bfe\u5fdc\u3057\u305f\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u516c\u958b\u3055\u308c\u307e\u3057\u305f\u3002\n\n\u306a\u304a\u3001Windows\u3067Point and Print\u304c\u6709\u52b9\u3067\u3042\u308b\u5834\u5408\u3001\u8a2d\u5b9a\u6b21\u7b2c\u3067\u306f\u4ed5\u69d8\u4e0a\u8106\u5f31\u306a\u72b6\u614b\u306b\u306a\u308a\u307e\u3059\u3002\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u306e\u30a2\u30c9\u30d0\u30a4\u30b6\u30ea\u306b\u63a8\u5968\u3055\u308c\u308b\u8a2d\u5b9a\u5024\u304c\u63b2\u8f09\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u81ea\u7d44\u7e54\u306e\u74b0\u5883\u306b\u304a\u3051\u308b\u8a2d\u5b9a\u3092\u3054\u78ba\u8a8d\u3044\u305f\u3060\u304f\u3053\u3068\u3092\u63a8\u5968\u3057\u307e\u3059\u3002\n*********************************************************************************************************<\/pre>\n<p><br \/>IV. \u56de\u907f\u7b56<br \/>\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u304b\u3089\u3001\u8106\u5f31\u6027\u306b\u5bfe\u3059\u308b\u56de\u907f\u7b56\u304c\u63d0\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<br \/>\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u306e\u60c5\u5831\u3092\u53c2\u7167\u3057\u3001\u56de\u907f\u7b56\u306e\u9069\u7528\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u306b\u304a\u3051\u308b\u5370\u5237\u30b9\u30d7\u30fc\u30e9\u30fc\u30b5\u30fc\u30d3\u30b9\u306b\u3064\u3044\u3066\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af\u304c\u3042\u308b\u3053\u3068\u304b\u3089\u7121\u52b9\u5316\u3092\u63a8\u5968\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>Microsoft<br \/>Security assessment: Domain controllers with Print spooler service available<br \/><a href=\"https:\/\/docs.microsoft.com\/en-us\/defender-for-identity\/cas-isp-print-spooler\" target=\"_blank\" rel=\"noopener\">https:\/\/docs.microsoft.com\/en-us\/defender-for-identity\/cas-isp-print-spooler<\/a><\/p>\n<p><br \/>V. \u7de9\u548c\u7b56<br \/>\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u304b\u3089\u3001\u8106\u5f31\u6027\u3092\u60aa\u7528\u3059\u308b\u653b\u6483\u306e\u5bfe\u8c61\u3068\u306a\u308b\u9818\u57df\u3092\u5236\u9650\u3059\u308b\u305f\u3081\u3001\u307e\u305f\u306f\u56de\u907f\u7b56\u306e\u9069\u7528\u304c\u96e3\u3057\u3044\u5834\u5408\u306e\u4ee3\u66ff\u6848\u3068\u3057\u3066\u7de9\u548c\u7b56\u304c\u63d0\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<br \/>\u7279\u5b9a\u30b0\u30eb\u30fc\u30d7\u306b\u5c5e\u3059\u308b\u30e6\u30fc\u30b6\u30fc\u306e\u5236\u9650\u306b\u3088\u308a\u3001\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u3092\u6a19\u7684\u3068\u3057\u305f\u653b\u6483\u306e\u5bfe\u8c61\u9818\u57df\u3092\u5236\u9650\u3059\u308b\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><br \/>VI. \u53c2\u8003\u60c5\u5831<br \/>\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u682a\u5f0f\u4f1a\u793e<br \/>Windows Print Spooler Remote Code Execution Vulnerability<br \/><a href=\"https:\/\/msrc.microsoft.com\/update-guide\/vulnerability\/CVE-2021-34527\" target=\"_blank\" rel=\"noopener\">https:\/\/msrc.microsoft.com\/update-guide\/vulnerability\/CVE-2021-34527<\/a><\/p>\n<p>CERT\/CC Vulnerability Note VU#383432<br \/>Microsoft Windows Print Spooler RpcAddPrinterDriverEx() function allows for RCE<br \/><a href=\"https:\/\/www.kb.cert.org\/vuls\/id\/383432\" target=\"_blank\" rel=\"noopener\">https:\/\/www.kb.cert.org\/vuls\/id\/383432<\/a><\/p>\n<pre class=\"text_3\">** \u66f4\u65b0: 2021\u5e747\u67087\u65e5\u8ffd\u8a18 *******************************************************************************\n    \u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u682a\u5f0f\u4f1a\u793e\n    KB5005010: Restricting installation of new printer drivers after applying the July 6, 2021 updates\n    <a class=\"urllink\" href=\"https:\/\/support.microsoft.com\/ja-jp\/topic\/kb5005010-restricting-installation-of-new-printer-drivers-after-applying-the-july-6-2021-updates-31b91c02-05bc-4ada-a7ea-183b129578a7\" target=\"_blank\" rel=\"noopener\">https:\/\/support.microsoft.com\/ja-jp\/topic\/kb5005010-restricting-installation-of-new-printer-drivers-after-applying-the-july-6-2021-updates-31b91c02-05bc-4ada-a7ea-183b129578a7<\/a>\n\n    \u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u682a\u5f0f\u4f1a\u793e\n    Out-of-Band (OOB) Security Update available for CVE-2021-34527\n    <a class=\"urllink\" href=\"https:\/\/msrc-blog.microsoft.com\/2021\/07\/06\/out-of-band-oob-security-update-available-for-cve-2021-34527\/\" target=\"_blank\" rel=\"noopener\">https:\/\/msrc-blog.microsoft.com\/2021\/07\/06\/out-of-band-oob-security-update-available-for-cve-2021-34527\/<\/a>\n*********************************************************************************************************\n\n** \u66f4\u65b0: 2021\u5e747\u67088\u65e5\u8ffd\u8a18 *******************************************************************************\n    \u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u682a\u5f0f\u4f1a\u793e\n    Windows Print Spooler \u306e\u8106\u5f31\u6027\u60c5\u5831 (CVE-2021-34527) \u306b\u5bfe\u3059\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5b9a\u4f8b\u5916\u3067\u306e\u516c\u958b\n    <a class=\"urllink\" href=\"https:\/\/msrc-blog.microsoft.com\/2021\/07\/06\/20210707_windowsprintspooleroob\/\" target=\"_blank\" rel=\"noopener\">https:\/\/msrc-blog.microsoft.com\/2021\/07\/06\/20210707_windowsprintspooleroob\/<\/a>\n*********************************************************************************************************<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>I. \u6982\u89812021\u5e747\u67081\u65e5\uff08\u73fe\u5730\u6642\u9593\uff09\u306b\u3001\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u304b\u3089Windows\u306e\u5370\u5237\u30b9\u30d7\u30fc\u30e9\u30fc\u306e\u8106\u5f31\u6027\uff08CVE-2021-34527\uff09\u306b\u95a2\u3059\u308b\u60c5\u5831\u304c\u516c\u958b\u3055\u308c\u307e\u3057\u305f\u3002\u8106\u5f31\u6027\u3092\u60aa\u7528\u3055\u308c\u308b\u3068\u3001\u5f71\u97ff\u3092\u53d7\u3051\u308bWindows\u30b7\u30b9\u30c6\u30e0\u4e0a [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[5],"tags":[45],"_links":{"self":[{"href":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/wp-json\/wp\/v2\/posts\/11327"}],"collection":[{"href":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/wp-json\/wp\/v2\/comments?post=11327"}],"version-history":[{"count":4,"href":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/wp-json\/wp\/v2\/posts\/11327\/revisions"}],"predecessor-version":[{"id":11340,"href":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/wp-json\/wp\/v2\/posts\/11327\/revisions\/11340"}],"wp:attachment":[{"href":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/wp-json\/wp\/v2\/media?parent=11327"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/wp-json\/wp\/v2\/categories?post=11327"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/wp-json\/wp\/v2\/tags?post=11327"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}