{"id":3265,"date":"2020-12-08T08:06:38","date_gmt":"2020-12-08T08:06:38","guid":{"rendered":"https:\/\/visualitynq.com\/?p=3265"},"modified":"2023-02-14T10:56:11","modified_gmt":"2023-02-14T09:56:11","slug":"cve-2020-1472-microsoft-netlogon-vulnerability","status":"publish","type":"post","link":"https:\/\/visualitynq.com\/de\/resources\/articles\/cve-2020-1472-microsoft-netlogon-vulnerability\/","title":{"rendered":"CVE-2020-1472 \u2013 Microsoft Netlogon Vulnerability"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"3265\" class=\"elementor elementor-3265\">\n\t\t\t\t\t\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-46baed5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"46baed5\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-0732a6a\" data-id=\"0732a6a\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-975aa21 elementor-widget elementor-widget-heading\" data-id=\"975aa21\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.6.7 - 03-07-2022 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h2 class=\"elementor-heading-title elementor-size-default\">Visuality NQ Meets RPC Security Feature Update of Microsoft for Secure Netlogon Channels and RPC Calls\n<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f71bbef elementor-widget elementor-widget-text-editor\" data-id=\"f71bbef\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.6.7 - 03-07-2022 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#818a91;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#818a91;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p>Microsoft has recently come out with an update to protect against a new vulnerability (Netlogon vulnerability CVE-2020-1472)<a id=\"_ftnref1\" href=\"#further-reading\">[1]<\/a>\u00a0related to its remote protocol, MS-NRPC. According to a note that shares all the details, all domain controllers should use secure RPC with the Netlogon channel. Visuality\u2019s NQ products are built to meet this requirement with end-to-end encryption and secure RPC.<\/p><p>An attacker can use the MS-NRPC to create a vulnerable Netlogon secure channel connection with a domain controller. This is called an elevation of privilege vulnerability<a id=\"_ftnref2\" href=\"#further-reading\">[2]<\/a>. The attacker can then run special applications via a device on the vulnerable network as they can receive domain admin access.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c447a38 elementor-widget elementor-widget-template\" data-id=\"c447a38\" data-element_type=\"widget\" data-widget_type=\"template.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-template\">\n\t\t\t\t\t<div data-elementor-type=\"section\" data-elementor-id=\"2864\" class=\"elementor elementor-2864\">\n\t\t\t\t\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-d4283cb elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"d4283cb\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-921efa7\" data-id=\"921efa7\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b9c3274 elementor-widget elementor-widget-heading\" data-id=\"b9c3274\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div class=\"elementor-heading-title elementor-size-default\">Learn if Visuality Systems SMB solutions can work for you<\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-inner-section elementor-element elementor-element-d017e22 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"d017e22\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-82ae979\" data-id=\"82ae979\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9fe1e95 elementor-cta--skin-cover vyn-cta-slide vyn-cta-slide-static elementor-cta--valign-top elementor-widget elementor-widget-call-to-action\" data-id=\"9fe1e95\" data-element_type=\"widget\" data-widget_type=\"call-to-action.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<link rel=\"stylesheet\" href=\"https:\/\/visualitynq.com\/app\/uploads\/sites\/4\/elementor\/css\/custom-pro-widget-call-to-action.min.css?ver=1759280829\">\t\t<a class=\"elementor-cta\" href=\"https:\/\/visualitynq.com\/products\/ynq\/\">\n\t\t\t\t\t<div class=\"elementor-cta__bg-wrapper\">\n\t\t\t\t<div class=\"elementor-cta__bg elementor-bg\" style=\"background-image: url(https:\/\/visualitynq.com\/app\/uploads\/sites\/4\/ynq-cta-01.svg);\"><\/div>\n\t\t\t\t<div class=\"elementor-cta__bg-overlay\"><\/div>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-cta__content\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-content-item elementor-cta__content-item elementor-icon-wrapper elementor-cta__icon elementor-view-default\">\n\t\t\t\t\t\t<div class=\"elementor-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"183.052\" height=\"73.463\" viewBox=\"0 0 183.052 73.463\"><g id=\"Group_1192\" data-name=\"Group 1192\" transform=\"translate(-165.711 -2331.881)\"><path id=\"Subtraction_17\" 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transform=\"translate(153.394 2755.257)\" fill=\"#fe541d\"><\/path><\/g><\/svg>\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t<div class=\"elementor-cta__title elementor-cta__content-item elementor-content-item\">Robust SMB3 Server Implementation<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8a89da3 elementor-widget elementor-widget-heading\" data-id=\"8a89da3\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Versions of SMB: Understanding SMB v1, SMB v2, and SMB v3\n<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-94b5eda elementor-widget elementor-widget-text-editor\" data-id=\"94b5eda\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><a href=\"https:\/\/docs.microsoft.com\/en-us\/windows\/win32\/rpc\/rpc-security-essentials\">Remote procedure calls<\/a>\u00a0allow users to call procedures of other programs located at remote servers. Such a call requires the distributed application to create a binding between the client and the server. To accomplish this, the server requires a security provider and an authentication mechanism. The client then receives a binding on the server and can make remote procedure calls.\u00a0<a id=\"_ftnref3\" href=\"#further-reading\">[3]<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-57477e0 elementor-widget elementor-widget-heading\" data-id=\"57477e0\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Microsoft\u2019s update<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9b092f7 elementor-widget elementor-widget-text-editor\" data-id=\"9b092f7\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>The security update has been structured into two parts and is meant to modify the way Netlogon manages its secure channels. After the first update release on August 11, 2020, the enforcement phase will be rolled out on February 9, 2021.<\/p>\n<p>In the second phase, the domain controllers will be in enforcement mode, and all devices, whether Window or non-Windows, will be required to either use secure RPC with Netlogon secure channels, or allow exceptions by adding an account explicitly in case of a non-compliant device. The&nbsp;<a href=\"https:\/\/support.microsoft.com\/en-us\/help\/4557222\/how-to-manage-the-changes-in-netlogon-secure-channel-connections-assoc\">complete guidelines<\/a>&nbsp;are available online.<\/p>\n<p>MS-NRPC is an RPC interface used by domain connected devices. It offers an authentication method and a secure Netlogon channel. The updates are meant to enforce secure RPC usage with these channels between the Active Directory domain controllers and member computers. The AD forest protection requires all domain controllers to be updated.<\/p>\n<p>The update advises secure RPC for all Windows and non-Windows domain controllers, and all third-party clients or servers must use it with the Netlogon secure channel.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-23f94a2 elementor-widget elementor-widget-heading\" data-id=\"23f94a2\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Visuality NQ and Secure RPC<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6f71a35 elementor-widget elementor-widget-text-editor\" data-id=\"6f71a35\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><strong>The RPC security vulnerability does not exist in Visuality products and does not affect their functioning<\/strong>.<\/p>\n<p><a href=\"https:\/\/visualitynq.com\/products\/ynq\">YNQ\u2122<\/a>&nbsp;from Visuality will offer secure RPC connections with an update planned from the next version in Q1 2021. A new feature, called \u201cnaked RPC\u201d, is also under progress for the next major version release, which will offer secure RPC permanently to all devices for RPC communication.<\/p>\n<p><a id=\"_ftn1\" href=\"https:\/\/visualitynq.com\/resources\/articles\/cve-2020-1472-microsoft-netlogon-vulnerability#_ftnref1\">[1]<\/a>&nbsp;<a href=\"https:\/\/msrc.microsoft.com\/update-guide\/en-US\/vulnerability\/CVE-2020-1472\">https:\/\/msrc.microsoft.com\/update-guide\/en-US\/vulnerability\/CVE-2020-1472<\/a><\/p>\n<p><a id=\"_ftn2\" href=\"https:\/\/visualitynq.com\/resources\/articles\/cve-2020-1472-microsoft-netlogon-vulnerability#_ftnref2\">[2]<\/a>&nbsp;<a href=\"https:\/\/support.microsoft.com\/en-in\/help\/4557222\/how-to-manage-the-changes-in-netlogon-secure-channel-connections-assoc\">https:\/\/support.microsoft.com\/en-in\/help\/4557222\/how-to-manage-the-changes-in-netlogon-secure-channel-connections-assoc<\/a><\/p>\n<p><a id=\"_ftn3\" href=\"https:\/\/visualitynq.com\/resources\/articles\/cve-2020-1472-microsoft-netlogon-vulnerability#_ftnref3\">[3]<\/a>&nbsp;<a href=\"https:\/\/docs.microsoft.com\/en-us\/windows\/win32\/rpc\/rpc-security-essentials\">https:\/\/docs.microsoft.com\/en-us\/windows\/win32\/rpc\/rpc-security-essentials<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-493a18d elementor-widget elementor-widget-template\" data-id=\"493a18d\" data-element_type=\"widget\" data-widget_type=\"template.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-template\">\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Microsoft hat k\u00fcrzlich eine Meldung zum Schutz vor einer neuen Sicherheitsl\u00fccke ver\u00f6ffentlicht (Netlogon-Sicherheitsl\u00fccke CVE-2020-1472)<\/p>\n","protected":false},"author":3,"featured_media":4609,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[30,33,34,32,31],"class_list":["post-3265","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles","tag-cve-2020-1472","tag-cyber-attack","tag-rsync-examples","tag-security","tag-vulnerability"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.9 - 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