{"id":11569,"date":"2021-09-09T12:27:01","date_gmt":"2021-09-09T03:27:01","guid":{"rendered":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/?p=11569"},"modified":"2023-10-17T11:43:17","modified_gmt":"2023-10-17T02:43:17","slug":"microsoft-mshtml%e3%81%ae%e8%84%86%e5%bc%b1%e6%80%a7%ef%bc%88cve-2021-40444%ef%bc%89%e3%81%ab%e9%96%a2%e3%81%99%e3%82%8b%e6%b3%a8%e6%84%8f%e5%96%9a%e8%b5%b7","status":"publish","type":"post","link":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/public\/heads-up\/microsoft-mshtml%e3%81%ae%e8%84%86%e5%bc%b1%e6%80%a7%ef%bc%88cve-2021-40444%ef%bc%89%e3%81%ab%e9%96%a2%e3%81%99%e3%82%8b%e6%b3%a8%e6%84%8f%e5%96%9a%e8%b5%b7\/","title":{"rendered":"Microsoft MSHTML\u306e\u8106\u5f31\u6027\uff08CVE-2021-40444\uff09\u306b\u95a2\u3059\u308b\u6ce8\u610f\u559a\u8d77"},"content":{"rendered":"\n

I. \u6982\u8981
2021\u5e749\u67087\u65e5\uff08\u7c73\u56fd\u6642\u9593\uff09\u306b\u3001\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u304b\u3089Microsoft MSHTML\u306e\u8106\u5f31\u6027\uff08CVE-2021-40444\uff09\u306b\u95a2\u3059\u308b\u60c5\u5831\u304c\u516c\u958b\u3055\u308c\u307e\u3057\u305f\u3002
\u8106\u5f31\u6027\u304c\u60aa\u7528\u3055\u308c\u308b\u3068\u3001\u9060\u9694\u306e\u7b2c\u4e09\u8005\u304c\u3001\u7d30\u5de5\u3057\u305fMicrosoft Office\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u30e6\u30fc\u30b6\u30fc\u306b\u958b\u304b\u305b\u308b\u3053\u3068\u3067\u3001\u4efb\u610f\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3059\u308b\u306a\u3069\u306e\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002
\u53c2\u8003:https:\/\/www.jpcert.or.jp\/at\/2021\/at210038.html<\/a><\/p>\n

\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u682a\u5f0f\u4f1a\u793e
Microsoft MSHTML Remote Code Execution Vulnerability
https:\/\/msrc.microsoft.com\/update-guide\/vulnerability\/CVE-2021-40444<\/a><\/p>\n

\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u306f\u3001\u672c\u8106\u5f31\u6027\u3092\u60aa\u7528\u3059\u308bMicrosoft Office\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u7528\u3044\u305f\u653b\u6483\u3092\u78ba\u8a8d\u3057\u3066\u3044\u308b\u3068\u516c\u8868\u3057\u3066\u3044\u307e\u3059\u3002
\u4eca\u5f8c\u3001\u672c\u8106\u5f31\u6027\u3092\u60aa\u7528\u3059\u308bMicrosoftOffice\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u7528\u3044\u305f\u653b\u6483\u304c\u5897\u52a0\u3059\u308b\u53ef\u80fd\u6027\u3082\u3042\u308b\u305f\u3081\u3001\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u306e\u60c5\u5831\u3092\u78ba\u8a8d\u3057\u3001\u56de\u907f\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\u901f\u3084\u304b\u306b\u9069\u7528\u3059\u308b\u3053\u3068\u3092\u63a8\u5968\u3057\u307e\u3059\u3002

** \u66f4\u65b0: 2021\u5e749\u670810\u65e5\u8ffd\u8a18 ************************************************************************************
2021\u5e749\u67089\u65e5\uff08\u7c73\u56fd\u6642\u9593\uff09\u3001\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u304b\u3089\u672c\u8106\u5f31\u6027\u306b\u5bfe\u3059\u308b\u56de\u907f\u7b56\u306b\u3064\u3044\u3066\u8ffd\u52a0\u60c5\u5831\u304c\u516c\u958b\u3055\u308c\u3066\u3044\u307e\u3059\u3002
\u672c\u8106\u5f31\u6027\u306b\u3064\u3044\u3066\u306f\u3001\u5f15\u304d\u7d9a\u304d\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u306a\u3069\u304c\u516c\u958b\u3059\u308b\u60c5\u5831\u3092\u6ce8\u8996\u3057\u3001\u5fc5\u8981\u306a\u56de\u907f\u7b56\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3092\u63a8\u5968\u3057\u307e\u3059\u3002
\u307e\u305f\u3001\u4fe1\u983c\u3067\u304d\u306a\u3044Microsoft Office\u306a\u3069\u306e\u30d5\u30a1\u30a4\u30eb\u306f\u3001\u958b\u5c01\u3092\u3057\u306a\u3044\u3088\u3046\u3054\u6ce8\u610f\u304f\u3060\u3055\u3044\u3002
******************************************************************************************************************<\/p>\n


II. \u5bfe\u8c61
\u5bfe\u8c61\u3068\u306a\u308b\u88fd\u54c1\u3068\u30d0\u30fc\u30b8\u30e7\u30f3\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002
\u6700\u65b0\u306e\u60c5\u5831\u3084\u8a73\u7d30\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

– Windows Server 2022
– Windows Server 2019
– Windows Server 2016
– Windows Server 2012 R2
– Windows Server 2012
– Windows Server 2008 R2
– Windows Server 2008
– Windows Server, version 20H2
– Windows Server, version 2004
– Windows 10
– Windows RT 8.1
– Windows 8.1
– Windows 7<\/p>\n


III. \u5bfe\u7b56
2021\u5e749\u67089\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\u3002
\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\u3057\u307e\u3059\u3002<\/p>\n

** \u66f4\u65b0: 2021\u5e749\u670815\u65e5\u8ffd\u8a18 ************************************************************************************
2021\u5e749\u670814\u65e5\uff08\u7c73\u56fd\u6642\u9593\uff09\u3001\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u304b\u3089\u672c\u8106\u5f31\u6027\u306b\u5bfe\u3059\u308b\u4fee\u6b63\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u516c\u958b\u3055\u308c\u307e\u3057\u305f\u3002
\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u306e\u60c5\u5831\u3092\u78ba\u8a8d\u306e\u4e0a\u3001\u901f\u3084\u304b\u306b\u5bfe\u7b56\u3092\u5b9f\u65bd\u3059\u308b\u3053\u3068\u3092\u63a8\u5968\u3057\u307e\u3059\u3002<\/p>\n

CVE-2021-40444
Microsoft MSHTML \u306e\u30ea\u30e2\u30fc\u30c8\u3067\u30b3\u30fc\u30c9\u304c\u5b9f\u884c\u3055\u308c\u308b\u8106\u5f31\u6027
https:\/\/msrc.microsoft.com\/update-guide\/ja-JP\/vulnerability\/CVE-2021-40444<\/a>
******************************************************************************************************************<\/p>\n


IV. \u56de\u907f\u7b56
\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u304b\u3089\u3001\u8106\u5f31\u6027\u306b\u5bfe\u3059\u308b\u56de\u907f\u7b56\u3068\u3057\u3066\u3001Internet Explorer\u306b\u304a\u3051\u308b\u5168\u3066\u306eActiveX\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3092\u7121\u52b9\u306b\u3059\u308b\u3001\u30ec\u30b8\u30b9\u30c8\u30ea\u306e\u8a2d\u5b9a\u3092\u5909\u66f4\u3059\u308b\u65b9\u6cd5\u304c\u6848\u5185\u3055\u308c\u3066\u3044\u307e\u3059\u3002
\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

** \u66f4\u65b0: 2021\u5e749\u670810\u65e5\u8ffd\u8a18 ************************************************************************************
2021\u5e749\u67089\u65e5\uff08\u7c73\u56fd\u6642\u9593\uff09\u3001\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u304b\u3089\u672c\u8106\u5f31\u6027\u306b\u5bfe\u3059\u308b\u56de\u907f\u7b56\u306b\u3064\u3044\u3066\u8ffd\u52a0\u60c5\u5831\u304c\u516c\u958b\u3055\u308c\u3066\u3044\u307e\u3059\u3002
\u30b0\u30eb\u30fc\u30d7\u30dd\u30ea\u30b7\u30fc\u3067\u56de\u907f\u7b56\u3092\u9069\u7528\u3059\u308b\u65b9\u6cd5\u306b\u52a0\u3048\u3001Windows Explorer\u3067\u30d5\u30a1\u30a4\u30eb\u30d7\u30ec\u30d3\u30e5\u30fc\u3092\u7121\u52b9\u306b\u3059\u308b\u65b9\u6cd5\u304c\u6848\u5185\u3055\u308c\u3066\u3044\u307e\u3059\u3002
******************************************************************************************************************<\/p>\n


V. \u7de9\u548c\u7b56
\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u304b\u3089\u3001Microsoft Office\u306e\u300c\u4fdd\u8b77\u30d3\u30e5\u30fc\u300d\u3084\u300cApplicationGuard for Office\u300d\u304c\u7d39\u4ecb\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u682a\u5f0f\u4f1a\u793e
\u4fdd\u8b77\u30d3\u30e5\u30fc\u3068\u306f
https:\/\/support.microsoft.com\/ja-jp\/topic\/%E4%BF%9D%E8%AD%B7%E3%83%93%E3%83%A5%E3%83%BC%E3%81%A8%E3%81%AF-d6f09ac7-e6b9-4495-8e43-2bbcdbcb6653<\/a><\/p>\n

\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u682a\u5f0f\u4f1a\u793e
Application Guard for Office
https:\/\/support.microsoft.com\/ja-jp\/topic\/application-guard-for-office-9e0fb9c2-ffad-43bf-8ba3-78f785fdba46<\/a><\/p>\n


VI. \u53c2\u8003\u60c5\u5831
\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u682a\u5f0f\u4f1a\u793e
Microsoft MSHTML Remote Code Execution Vulnerability
https:\/\/msrc.microsoft.com\/update-guide\/vulnerability\/CVE-2021-40444<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

I. \u6982\u89812021\u5e749\u67087\u65e5\uff08\u7c73\u56fd\u6642\u9593\uff09\u306b\u3001\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u304b\u3089Microsoft MSHTML\u306e\u8106\u5f31\u6027\uff08CVE-2021-40444\uff09\u306b\u95a2\u3059\u308b\u60c5\u5831\u304c\u516c\u958b\u3055\u308c\u307e\u3057\u305f\u3002\u8106\u5f31\u6027\u304c\u60aa\u7528\u3055\u308c\u308b\u3068\u3001\u9060\u9694\u306e\u7b2c\u4e09\u8005\u304c\u3001\u7d30\u5de5\u3057\u305fMicro […]<\/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\/11569"}],"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=11569"}],"version-history":[{"count":4,"href":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/wp-json\/wp\/v2\/posts\/11569\/revisions"}],"predecessor-version":[{"id":11590,"href":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/wp-json\/wp\/v2\/posts\/11569\/revisions\/11590"}],"wp:attachment":[{"href":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/wp-json\/wp\/v2\/media?parent=11569"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/wp-json\/wp\/v2\/categories?post=11569"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/wp-json\/wp\/v2\/tags?post=11569"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}