{"id":2738,"date":"2026-09-08T21:25:45","date_gmt":"2026-09-08T21:25:45","guid":{"rendered":"https:\/\/netguide.io\/news\/2026\/09\/08\/mikrotrick-mikrotik-router-ssh-luecken-uebernahme\/"},"modified":"2026-09-08T21:25:45","modified_gmt":"2026-09-08T21:25:45","slug":"mikrotrick-mikrotik-router-ssh-luecken-uebernahme","status":"publish","type":"post","link":"https:\/\/netguide.io\/news\/de\/2026\/09\/08\/mikrotrick-mikrotik-router-ssh-luecken-uebernahme\/","title":{"rendered":"MikroTrick: Angreifer kapern MikroTik-Router \u00fcber SSH-L\u00fccken"},"content":{"rendered":"<div id=\"netgu-1965075472\" class=\"netgu-before-content netgu-entity-placement\"><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6258556257245998\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-6258556257245998\" \ndata-ad-slot=\"3494115342\" \ndata-ad-format=\"auto\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div><p class=\"wp-block-paragraph\"><strong>Das polnische Computer-Notfallteam CERT Polska warnt vor einer aktiv ausgenutzten Angriffskette namens \u201eMikroTrick\u201c, mit der sich Unbekannte ohne g\u00fcltige Zugangsdaten die volle Kontrolle \u00fcber MikroTik-Router mit dem Betriebssystem RouterOS verschaffen. Betroffen sind Ger\u00e4te, deren SSH-Dienst aus dem \u00f6ffentlichen Netz erreichbar ist.<\/strong><\/p>\n\n<h3 class=\"wp-block-heading\">Zwei Schwachstellen bilden die Kette<\/h3>\n\n<p class=\"wp-block-paragraph\">Am 5. September 2026 ver\u00f6ffentlichte CERT Polska insgesamt sechs RouterOS-Schwachstellen. Zwei davon greifen bei \u201eMikroTrick\u201c ineinander: <strong>CVE-2026-67276<\/strong> (CVSS 9,2) ist ein Authentifizierungs-Bypass. RouterOS vergleicht beim Abgleich eines SSH-Schl\u00fcssels nicht den vollst\u00e4ndigen RSA-Public-Key, sondern pr\u00fcft nur Typ und Modulus und ignoriert den Exponenten. Ein Angreifer, der einen berechtigten Modulus kennt, kann so mit dem Exponenten 1 eine g\u00fcltige Signatur f\u00e4lschen und sich ohne privaten Schl\u00fcssel als legitimer Nutzer anmelden.<\/p><div id=\"netgu-376871598\" class=\"netgu-content netgu-entity-placement\"><aside class=\"deals-top deals-top--compact\">\n\n\t\t\t<h3 class=\"deals-top__title\">Top-Deals<\/h3>\n\t\n\t\t\t<ul class=\"deals-top__list\">\n\t\t\t\t\t\t\t<li class=\"deals-top__item\">\n\t\t\t\t\t<a class=\"deals-top__link\" href=\"https:\/\/netguide.io\/deals\/de\/deals\/ugreen-aluminium-tabletstaender-360-drehbar-hoehenverstellbar\/\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img class=\"deals-top__image\" src=\"https:\/\/netguide.io\/news\/wp-content\/uploads\/sites\/15\/2026\/09\/2825012_1-150x150.webp\" alt=\"\" width=\"52\" height=\"52\" loading=\"lazy\" \/>\n\t\t\t\t\t\t\n\t\t\t\t\t\t<span class=\"deals-top__body\">\n\t\t\t\t\t\t\t<span class=\"deals-top__name\">UGREEN Aluminium Tabletst\u00e4nder | 360\u00b0 Drehbar &amp; 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September \u2013 einen Tag bevor MikroTik am 3. September korrigierte RouterOS-Builds bereitstellte. Als Warnsignal f\u00fcr eine Kompromittierung gilt ein auff\u00e4lliger, mit einem verbotenen Zeichen beginnender SSH-Benutzer wie \u201e-2\u201c in den Protokollen.<\/p>\n\n<ul class=\"wp-block-list\"><li>Fehlerbereinigt in RouterOS 6.49.21 (Long-term), 7.23.4 (Long-term) und 7.24.2 (Stable)<\/li><li>SSH-Zugriff aus dem Internet sperren oder auf feste IP-Adressen einschr\u00e4nken<\/li><li>Konten und Firewall-Regeln nach verd\u00e4chtigen \u00c4nderungen pr\u00fcfen<\/li><\/ul>\n\n<p class=\"wp-block-paragraph\">MikroTik-Ger\u00e4te sind auch in Deutschland bei kleineren Providern, Unternehmen und im Homelab weit verbreitet. Administratoren sollten betroffene Router umgehend aktualisieren und die SSH-Erreichbarkeit einschr\u00e4nken.<\/p>\n\n<p class=\"wp-block-paragraph\"><em>Quellen: <a href=\"https:\/\/cert.pl\/en\/posts\/2026\/09\/mikrotik-routeros-cve\/\">CERT Polska<\/a> &middot; <a href=\"https:\/\/www.bleepingcomputer.com\/news\/security\/hackers-exploit-new-mikrotik-routeros-flaws-to-hijack-routers\/\">BleepingComputer<\/a> &middot; <a href=\"https:\/\/www.helpnetsecurity.com\/2026\/09\/07\/mikrotik-routeros-ssh-vulnerabilities-exploited\/\">Help Net Security<\/a><\/em><\/p><div id=\"netgu-193682119\" class=\"netgu-after-content netgu-entity-placement\"><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6258556257245998\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-6258556257245998\" \ndata-ad-slot=\"4559785002\" \ndata-ad-format=\"auto\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Das CERT Polska warnt vor der aktiv ausgenutzten Angriffskette \u201eMikroTrick\u201c: \u00dcber zwei SSH-Schwachstellen \u00fcbernehmen Unbekannte MikroTik-Router mit RouterOS ohne g\u00fcltige Zugangsdaten komplett.<\/p>\n","protected":false},"author":1,"featured_media":1722,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[],"tags":[],"class_list":["post-2738","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry"],"brizy_media":[],"_links":{"self":[{"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/posts\/2738","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/comments?post=2738"}],"version-history":[{"count":0,"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/posts\/2738\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/media\/1722"}],"wp:attachment":[{"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/media?parent=2738"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/categories?post=2738"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/tags?post=2738"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}