{"id":3081,"date":"2021-05-06T11:34:40","date_gmt":"2021-05-06T11:34:40","guid":{"rendered":"https:\/\/partnernews.sophos.com\/en-us\/?p=3081"},"modified":"2021-09-21T15:03:05","modified_gmt":"2021-09-21T15:03:05","slug":"using-sophos-edr-to-identify-endpoints-impacted-by-dell-kernel-driver-vulnerability-cve-2021-21551","status":"publish","type":"post","link":"https:\/\/partnernews.sophos.com\/ja-jp\/2021\/05\/resources\/using-sophos-edr-to-identify-endpoints-impacted-by-dell-kernel-driver-vulnerability-cve-2021-21551\/","title":{"rendered":"Sophos EDR \u3092\u4f7f\u7528\u3057\u3066\u3001Dell \u30ab\u30fc\u30cd\u30eb\u30c9\u30e9\u30a4\u30d0\u306e\u8106\u5f31\u6027 (CVE-2021-21551) \u306e\u5f71\u97ff\u3092\u53d7\u3051\u305f\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3092\u7279\u5b9a"},"content":{"rendered":"<p>Dell \u306e Windows \u30ab\u30fc\u30cd\u30eb\u30c9\u30e9\u30a4\u30d0\u306e 1\u3064\u306b\u8907\u6570\u306e\u8106\u5f31\u6027\u304c\u767a\u898b\u3055\u308c\u307e\u3057\u305f\u3002\u6a29\u9650\u6607\u683c\u3001\u30b5\u30fc\u30d3\u30b9\u62d2\u5426\u3001\u60c5\u5831\u6f0f\u6d29\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b 5\u3064\u306e\u95a2\u9023\u30d0\u30b0\u306f\u3001\u307e\u3068\u3081\u3066 CVE-2021-21551 \u306b\u5206\u985e\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>Dell \u306f\u30012021\u5e74 5\u6708 4\u65e5\u306b<a href=\"https:\/\/www.dell.com\/support\/kbdoc\/en-uk\/000186019\/dsa-2021-088-dell-client-platform-security-update-for-dell-driver-insufficient-access-control-vulnerability\">\u3053\u308c\u3089\u306e\u8106\u5f31\u6027\u306b\u5bfe\u3059\u308b\u30d1\u30c3\u30c1<\/a>\u3092\u767a\u884c\u3057\u307e\u3057\u305f\u3002\u306a\u308b\u3079\u304f\u65e9\u304f\u9069\u7528\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n<p>\u30d0\u30b0\u306f 2009 \u5e74\u307e\u3067\u9061\u308a\u3001Dell \u516c\u5f0f\u30ea\u30b9\u30c8\u3067\u306f\u5f71\u97ff\u3092\u53d7\u3051\u308b\u88fd\u54c1\u304c\u591a\u304f\u306e\u30da\u30fc\u30b8\u306b\u53ca\u3073\u307e\u3059\u3002\u305d\u306e\u7d50\u679c\u3001IT \u30c1\u30fc\u30e0\u306b\u3068\u3063\u3066\u306e\u8ab2\u984c\u306f\u3001\u7d44\u7e54\u304c\u3053\u306e\u554f\u984c\u306b\u5f71\u97ff\u3092\u53d7\u3051\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3001\u305d\u306e\u5f71\u97ff\u7bc4\u56f2\u3001\u6642\u9593\u3068\u4fee\u5fa9\u4f5c\u696d\u306b\u9069\u5207\u306b\u7126\u70b9\u3092\u5f53\u3066\u308b\u65b9\u6cd5\u3092\u7279\u5b9a\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n<h2>Sophos EDR \u3092\u4f7f\u7528\u3057\u305f\u30af\u30a8\u30ea\u30fc<\/h2>\n<p><a href=\"https:\/\/www.sophos.com\/ja-jp\/products\/endpoint-antivirus\/edr.aspx\">Sophos Endpoint Detection and Response<\/a>\u00a0(EDR) \u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30c7\u30d0\u30a4\u30b9\u306b\u3053\u306e\u8106\u5f31\u6027\u306b\u95a2\u9023\u3059\u308b\u30d5\u30a1\u30a4\u30eb\u304c\u3042\u308b\u304b\u3069\u3046\u304b\u3001\u305d\u3057\u3066\u305d\u306e\u30d5\u30a1\u30a4\u30eb\u304c\u3042\u308b\u30c7\u30d0\u30a4\u30b9\u306e\u6570\u3092\u7c21\u5358\u306b\u7279\u5b9a\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u4fee\u5fa9\u4f5c\u696d\u306b\u96c6\u4e2d\u3057\u3001\u554f\u984c\u3092\u8fc5\u901f\u306b\u5bfe\u51e6\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u30bd\u30d5\u30a9\u30b9\u306f\u3001\u304a\u5ba2\u69d8\u306e\u7d44\u7e54\u5168\u4f53\u306b\u304a\u3044\u3066\u3069\u306e\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u304c\u8106\u5f31\u3067\u3001\u6ce8\u610f\u3055\u308c\u308b\u3079\u304d\u304b\u3092\u7279\u5b9a\u3059\u308b\u30ab\u30b9\u30bf\u30e0\u30af\u30a8\u30ea\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f\u3002\u307e\u305f\u3001\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306b\u8106\u5f31\u6027\u304c<em>\u306a\u3044<\/em>\u304b\u3069\u3046\u304b\u3082\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<p>Sophos Central \u306e\u8105\u5a01\u89e3\u6790\u30bb\u30f3\u30bf\u30fc\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3001\u300cLive Discover\u300d\u3092\u9078\u629e\u3057\u3066\u3001\u65b0\u3057\u3044\u30af\u30a8\u30ea\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_74908\" class=\"wp-caption aligncenter\" aria-describedby=\"caption-attachment-74908\"><a href=\"https:\/\/news.sophos.com\/wp-content\/uploads\/2021\/05\/EDR-create-query.png\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-74908 size-full\" src=\"https:\/\/news.sophos.com\/wp-content\/uploads\/2021\/05\/EDR-create-query.png\" sizes=\"auto, (max-width: 3094px) 100vw, 3094px\" srcset=\"https:\/\/news.sophos.com\/wp-content\/uploads\/2021\/05\/EDR-create-query.png 3094w, https:\/\/news.sophos.com\/wp-content\/uploads\/2021\/05\/EDR-create-query.png?resize=300,255 300w, https:\/\/news.sophos.com\/wp-content\/uploads\/2021\/05\/EDR-create-query.png?resize=768,652 768w, https:\/\/news.sophos.com\/wp-content\/uploads\/2021\/05\/EDR-create-query.png?resize=1024,870 1024w, https:\/\/news.sophos.com\/wp-content\/uploads\/2021\/05\/EDR-create-query.png?resize=1536,1305 1536w, https:\/\/news.sophos.com\/wp-content\/uploads\/2021\/05\/EDR-create-query.png?resize=2048,1740 2048w\" alt=\"\" width=\"3094\" height=\"2628\" \/><\/a><figcaption id=\"caption-attachment-74908\" class=\"wp-caption-text\">\u300c\u65b0\u3057\u3044\u30af\u30a8\u30ea\u306e\u4f5c\u6210\u300d\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/figcaption><\/figure>\n<p>\u4ee5\u4e0b\u306e\u30af\u30a8\u30ea\u3092\u30b3\u30d4\u30fc\u3057\u307e\u3059\u3002<\/p>\n<pre>\u00a0 -- Check if the dbutil_2_3.sys file is present or not <strong>SELECT<\/strong> \u00a0 \u00a0<strong>CASE<\/strong>\u00a0<strong>WHEN<\/strong>\u00a0(<strong>SELECT<\/strong>\u00a01 <strong>FROM<\/strong>\u00a0<strong>file<\/strong>\u00a0<strong>WHERE<\/strong>\u00a0path <strong>LIKE<\/strong>\u00a0'C:\\Users\\%\\AppData\\Local\\Temp\\dbutil_2_3.sys'\u00a0<strong>OR<\/strong>\u00a0path <strong>LIKE<\/strong>\u00a0'C:\\Windows\\Temp\\dbutil_2_3.sys') = 1 \u00a0 \u00a0 \u00a0 <strong>THEN<\/strong> 'SYSTEM REQUIRES ATTENTION: File for CVE-2021-21551 (dbutil_2.3.sys) located in directory '|| (<strong>SELECT<\/strong>\u00a0<strong>directory<\/strong>\u00a0<strong>FROM<\/strong>\u00a0<strong>file<\/strong>\u00a0<strong>WHERE<\/strong>\u00a0path <strong>LIKE<\/strong>\u00a0'C:\\Users\\%\\AppData\\Local\\Temp\\dbutil_2_3.sys'\u00a0<strong>OR<\/strong>\u00a0path <strong>LIKE<\/strong>\u00a0'C:\\Windows\\Temp\\dbutil_2_3.sys') \u00a0 \u00a0 \u00a0 <strong>ELSE<\/strong> 'File for CVE-2021-21551 (dbutil_2_3.sys) not found' \u00a0 <strong>END<\/strong>\u00a0Status<\/pre>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/news.sophos.com\/wp-content\/uploads\/2021\/05\/Paste-query.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-74916 size-full\" src=\"https:\/\/news.sophos.com\/wp-content\/uploads\/2021\/05\/Paste-query.png\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" srcset=\"https:\/\/news.sophos.com\/wp-content\/uploads\/2021\/05\/Paste-query.png 3094w, https:\/\/news.sophos.com\/wp-content\/uploads\/2021\/05\/Paste-query.png?resize=300,255 300w, https:\/\/news.sophos.com\/wp-content\/uploads\/2021\/05\/Paste-query.png?resize=768,652 768w, https:\/\/news.sophos.com\/wp-content\/uploads\/2021\/05\/Paste-query.png?resize=1024,870 1024w, https:\/\/news.sophos.com\/wp-content\/uploads\/2021\/05\/Paste-query.png?resize=1536,1305 1536w, https:\/\/news.sophos.com\/wp-content\/uploads\/2021\/05\/Paste-query.png?resize=2048,1740 2048w\" alt=\"\" width=\"640\" height=\"544\" \/><\/a><\/p>\n<p>\u7d44\u7e54\u5168\u4f53\u3067\u30af\u30a8\u30ea\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/news.sophos.com\/wp-content\/uploads\/2021\/05\/Run-query.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-74917 size-full\" src=\"https:\/\/news.sophos.com\/wp-content\/uploads\/2021\/05\/Run-query.png\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" srcset=\"https:\/\/news.sophos.com\/wp-content\/uploads\/2021\/05\/Run-query.png 3094w, https:\/\/news.sophos.com\/wp-content\/uploads\/2021\/05\/Run-query.png?resize=300,255 300w, https:\/\/news.sophos.com\/wp-content\/uploads\/2021\/05\/Run-query.png?resize=768,652 768w, https:\/\/news.sophos.com\/wp-content\/uploads\/2021\/05\/Run-query.png?resize=1024,870 1024w, https:\/\/news.sophos.com\/wp-content\/uploads\/2021\/05\/Run-query.png?resize=1536,1305 1536w, https:\/\/news.sophos.com\/wp-content\/uploads\/2021\/05\/Run-query.png?resize=2048,1740 2048w\" alt=\"\" width=\"640\" height=\"544\" \/><\/a><\/p>\n<h2>\u5f71\u97ff\u3092\u53d7\u3051\u305f\u30c7\u30d0\u30a4\u30b9\u306e\u4fee\u6b63<\/h2>\n<p>Dell\u3067\u306f\u3001\u554f\u984c\u306e\u3042\u308b\u30ab\u30fc\u30cd\u30eb\u30c9\u30e9\u30a4\u30d0\u3092\u624b\u52d5\u3067\u524a\u9664\u3059\u308b<a href=\"https:\/\/www.dell.com\/support\/kbdoc\/en-uk\/000186019\/dsa-2021-088-dell-client-platform-security-update-for-dell-driver-insufficient-access-control-vulnerability\">\u624b\u9806\u3092\u63d0\u4f9b<\/a>\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u624b\u9806\u306b\u306f\u3001\u6b21\u306e 2 \u3064\u306e\u5834\u6240\u306e\u3044\u305a\u308c\u304b\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li>C:\\Users\\%USERNAME%\\AppData\\Local\\Temp\\dbutil_2_3.sys<\/li>\n<li>C:\\Windows\\Temp\\dbutil_2_3.sys<\/li>\n<\/ul>\n<p>\u30b7\u30b9\u30c6\u30e0\u30d5\u30a1\u30a4\u30eb\u3092\u624b\u52d5\u3067\u524a\u9664\u3059\u308b\u3053\u3068\u306b\u4e0d\u5b89\u3092\u611f\u3058\u3066\u3044\u308b\u5834\u5408\u306f\u3001Dell \u306e\u30b5\u30a4\u30c8\u3067\u81ea\u52d5\u30c9\u30e9\u30a4\u30d0\u30fc\u30ea\u30e0\u30fc\u30d0\u30fc\u3092\u5099\u3048\u305f<a href=\"https:\/\/www.dell.com\/support\/home\/en-uk\/drivers\/driversdetails?driverid=7PR57\">\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u30da\u30fc\u30b8<\/a>\u3092\u516c\u958b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u8a73\u7d30\u306f\u3053\u3061\u3089<\/h2>\n<p>\u8106\u5f31\u6027\u3068\u305d\u306e\u60aa\u7528\u65b9\u6cd5\u306b\u95a2\u3059\u308b\u8a73\u7d30\u306f Sophos\u00a0<a href=\"https:\/\/nakedsecurity.sophos.com\/2021\/05\/05\/dell-fixes-exploitable-holes-its-own-firmware-update-driver-patch-now\/\">Naked Security \u306e\u8a18\u4e8b<\/a> (\u82f1\u8a9e) \u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><a href=\"https:\/\/www.sophos.com\/ja-jp\/products\/endpoint-antivirus\/edr.aspx\">Sophos EDR<\/a>\u00a0\u306f\u3001\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3068\u30b5\u30fc\u30d0\u30fc\u306e\u4e21\u65b9\u3067\u5229\u7528\u53ef\u80fd\u3067\u3001Intercept X \u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u306b\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u3061\u3089\u306f\u300130\u65e5\u9593\u7121\u511f\u3067\u304a\u8a66\u3057\u3044\u305f\u3060\u3051\u307e\u3059\u3002<\/p>\n<ul>\n<li>Sophos Central \u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u65e2\u5b58\u306e\u30bd\u30d5\u30a9\u30b9\u306e\u304a\u5ba2\u69d8\u306f\u3001\u7ba1\u7406\u30b3\u30f3\u30bd\u30fc\u30eb\u5185\u3067\u76f4\u63a5\u7121\u511f\u8a55\u4fa1\u7248\u3092\u6709\u52b9\u5316\u3067\u304d\u307e\u3059\u3002\u5de6\u5074\u306e\u30ca\u30d3\u30b2\u30fc\u30b7\u30e7\u30f3\u30d0\u30fc\u306e\u4e0b\u306b\u3042\u308b\u300c\u7121\u511f\u8a55\u4fa1\u7248\u300d\u3092\u9078\u629e\u3059\u308b\u3060\u3051\u3067\u3059\u3002<\/li>\n<li>\u30bd\u30d5\u30a9\u30b9\u88fd\u54c1\u3092\u4f7f\u7528\u3057\u3066\u3044\u306a\u3044\u65b9\u306f\u3001\u5f0a\u793e\u306e Web \u30b5\u30a4\u30c8\u304b\u3089<a href=\"https:\/\/www.sophos.com\/ja-jp\/products\/free-trials.aspx\">\u7121\u511f\u8a55\u4fa1\u7248\u3092\u958b\u59cb<\/a>\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u306e\u30af\u30a8\u30ea\u3092\u4f7f\u7528\u3057\u3066\u3001Dell \u30ab\u30fc\u30cd\u30eb\u30c9\u30e9\u30a4\u30d0\u306e\u8106\u5f31\u6027 CVE-2021-21551 \u306e\u5f71\u97ff\u3092\u53d7\u3051\u308b\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3068\u3001\u5f71\u97ff\u3092\u53d7\u3051\u306a\u3044\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"author":11,"featured_media":3000003401,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3],"tags":[53,21],"coauthors":[43],"class_list":["post-3081","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-resources","tag-sophos-edr","tag-threats-malware"],"jetpack_featured_media_url":"https:\/\/partnernews.sophos.com\/en-us\/wp-content\/uploads\/sites\/3\/2021\/07\/featured-image-sophos-endpopint-detection-and-response-app-icon-1600x960px.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/partnernews.sophos.com\/ja-jp\/wp-json\/wp\/v2\/posts\/3081","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/partnernews.sophos.com\/ja-jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/partnernews.sophos.com\/ja-jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/partnernews.sophos.com\/ja-jp\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/partnernews.sophos.com\/ja-jp\/wp-json\/wp\/v2\/comments?post=3081"}],"version-history":[{"count":1,"href":"https:\/\/partnernews.sophos.com\/ja-jp\/wp-json\/wp\/v2\/posts\/3081\/revisions"}],"predecessor-version":[{"id":3094,"href":"https:\/\/partnernews.sophos.com\/ja-jp\/wp-json\/wp\/v2\/posts\/3081\/revisions\/3094"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/partnernews.sophos.com\/ja-jp\/wp-json\/"}],"wp:attachment":[{"href":"https:\/\/partnernews.sophos.com\/ja-jp\/wp-json\/wp\/v2\/media?parent=3081"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/partnernews.sophos.com\/ja-jp\/wp-json\/wp\/v2\/categories?post=3081"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/partnernews.sophos.com\/ja-jp\/wp-json\/wp\/v2\/tags?post=3081"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/partnernews.sophos.com\/ja-jp\/wp-json\/wp\/v2\/coauthors?post=3081"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}