{"id":4785,"date":"2020-09-04T01:22:47","date_gmt":"2020-09-04T01:22:47","guid":{"rendered":"https:\/\/pariswells.com\/blog\/?p=4785"},"modified":"2020-09-04T01:22:47","modified_gmt":"2020-09-04T01:22:47","slug":"ms-august-rollup-to-domain-controller-the-netlogon-service-denied-a-vulnerable-netlogon-secure-channel-connection-from-a-machine-account","status":"publish","type":"post","link":"https:\/\/pariswells.com\/blog\/research\/ms-august-rollup-to-domain-controller-the-netlogon-service-denied-a-vulnerable-netlogon-secure-channel-connection-from-a-machine-account","title":{"rendered":"MS August Rollup to domain controller &#8211; The Netlogon service denied a vulnerable Netlogon secure channel connection from a machine account. \u00a0"},"content":{"rendered":"<p class=\"x_MsoNormal\">Symptoms \u2013 staff unable to login to Outlook for Desktop\u00a0<\/p><p class=\"x_MsoNormal\">Error found in event log on patched Domain controller<\/p><p class=\"x_MsoNormal\"><strong>The Netlogon service denied a vulnerable Netlogon secure channel connection from a machine account. \u00a0<\/strong><\/p><p class=\"x_MsoNormal\">Workaround<\/p><p class=\"x_MsoNormal\">Deploy GPO to allow insecure connections (this should be done only until machines are patched)<\/p><p class=\"x_MsoNormal\">\u00a0<\/p><p class=\"x_MsoNormal\">Refer to\u00a0<a href=\"https:\/\/support.microsoft.com\/en-au\/help\/4557222\/how-to-manage-the-changes-in-netlogon-secure-channel-connections-assoc\" target=\"_blank\" rel=\"noopener noreferrer\" data-auth=\"NotApplicable\">https:\/\/support.microsoft.com\/en-au\/help\/4557222\/how-to-manage-the-changes-in-netlogon-secure-channel-connections-assoc<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Symptoms \u2013 staff unable to login to Outlook for Desktop\u00a0Error found in event log on patched Domain controllerThe Netlogon service denied a vulnerable Netlogon secure channel connection [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[3337,618,2284,3336],"class_list":["post-4785","post","type-post","status-publish","format-standard","hentry","category-research","tag-august","tag-exchange","tag-gpo","tag-the-netlogon-service-denied-a-vulnerable-netlogon-secure-channel-connection-from-a-machine-account"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/pariswells.com\/blog\/wp-json\/wp\/v2\/posts\/4785","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pariswells.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pariswells.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pariswells.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pariswells.com\/blog\/wp-json\/wp\/v2\/comments?post=4785"}],"version-history":[{"count":1,"href":"https:\/\/pariswells.com\/blog\/wp-json\/wp\/v2\/posts\/4785\/revisions"}],"predecessor-version":[{"id":4786,"href":"https:\/\/pariswells.com\/blog\/wp-json\/wp\/v2\/posts\/4785\/revisions\/4786"}],"wp:attachment":[{"href":"https:\/\/pariswells.com\/blog\/wp-json\/wp\/v2\/media?parent=4785"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pariswells.com\/blog\/wp-json\/wp\/v2\/categories?post=4785"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pariswells.com\/blog\/wp-json\/wp\/v2\/tags?post=4785"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}