{"id":5746,"date":"2025-08-04T08:10:40","date_gmt":"2025-08-04T06:10:40","guid":{"rendered":"https:\/\/www.tec4net.com\/web\/?p=5746"},"modified":"2025-07-27T13:58:17","modified_gmt":"2025-07-27T11:58:17","slug":"31351","status":"publish","type":"post","link":"https:\/\/www.tec4net.com\/web\/2025\/08\/04\/31351\/","title":{"rendered":"Kritische Sharepoint-L\u00fccke: Hacker-Angriff trifft 100 Organisationen"},"content":{"rendered":"<p data-start=\"386\" data-end=\"1650\">Noch bevor Microsoft Sicherheitsupdates f\u00fcr die schwerwiegende Sharepoint-L\u00fccke &#8222;ToolShell&#8220; ver\u00f6ffentlicht hat, sind etwa 100 Organisationen von Cyberangriffen betroffen gewesen. Laut Reuters, das sich auf das Sicherheitsunternehmen Eye Security bezieht, fand die erste Angriffswelle bereits vor Ver\u00f6ffentlichung eines Patches statt. Die Angriffe betrafen vor allem Installationen in den USA und Deutschland.<\/p>\n<p data-start=\"386\" data-end=\"1650\">Googles Sicherheitsabteilung Mandiant identifizierte dabei mindestens einen Angreifer, dessen Spur nach China f\u00fchrt. Microsoft ver\u00f6ffentlichte die Information zur Schwachstelle zun\u00e4chst ohne Patch und empfahl lediglich den Einsatz von Microsoft Defender Antivirus. Sp\u00e4ter folgten erste Updates, die allein jedoch nicht ausreichen. Zus\u00e4tzlich m\u00fcssen sogenannte ASP.Net &#8222;Machine Keys&#8220; erneuert und der IIS-Webserver neu gestartet werden.<\/p>\n<p data-start=\"386\" data-end=\"1650\">Ein IT-Sicherheitsexperte erkl\u00e4rte gegen\u00fcber TechCrunch, dass sich die ersten Attacken auf wenige Ziele konzentrierten. Inzwischen wird von bis zu 10.000 verwundbaren Sharepoint-Systemen ausgegangen. Zu den ersten betroffenen Einrichtungen z\u00e4hlten ein gro\u00dfes Energieunternehmen und mehrere europ\u00e4ische Regierungsstellen.<\/p>\n<p data-start=\"1652\" data-end=\"1784\">Quelle:<br data-start=\"1663\" data-end=\"1666\" \/><a class=\"\" href=\"https:\/\/www.heise.de\/news\/Schwere-Sharepoint-Luecke-Schon-am-Wochenende-100-Organisationen-kompomittiert-10495463.html\" target=\"_new\" rel=\"noopener\" data-start=\"1666\" data-end=\"1784\">https:\/\/www.heise.de\/news\/Schwere-Sharepoint-Luecke-Schon-am-Wochenende-100-Organisationen-kompomittiert-10495463.html<\/a><\/p>\n<p>Endet der Datenschutzpakt zwischen der EU und den USA?<br \/>\n<a href=\"https:\/\/www.tec4net.com\/web\/wp-admin\/post.php?post=4989&amp;action=edit\">https:\/\/www.tec4net.com\/web\/wp-admin\/post.php?post=4989&amp;action=edit<\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Wir sind Experten f\u00fcr Datenschutz und IT-Sicherheit &#8211; seit 2003<br \/>\n<\/strong><\/p>\n<p>Unsere erfahrenen Spezialisten unterst\u00fctzen Sie unter anderem bei:<\/p>\n<p>&#8211; der Einf\u00fchrung und Beachtung von DSGVO, BDSG und TTDSG<br \/>\n&#8211; der Umsetzung von ISO 27001, TISAX, PCI-DSS oder NIS-2<br \/>\n&#8211; der Vorbereitung auf Audits und Zertifizierungen<\/p>\n<p>Kostenloses Erstgespr\u00e4ch &#8211; unverbindlich &amp; transparent -&gt; <a href=\"https:\/\/www.tec4net.com\/web\/impressum\">www.tec4net.com\/web\/impressum<\/a><\/p>\n<p><strong>tec4net GmbH &#8211; Datenschutz und IT-Sicherheit praktikabel umsetzen.<\/strong><\/p>\n<hr \/>\n<p><a href=\"https:\/\/www.tec4net.com\">www.tec4net.com<\/a> \u2013 <a href=\"https:\/\/www.it-news-blog.com\">www.it-news-blog.com<\/a> \u2013 <a href=\"https:\/\/www.it-sachverstand.info\">www.it-sachverstand.info<\/a> \u2013 <a href=\"https:\/\/www.datenschutz-muenchen.com\">www.datenschutz-muenchen.com<\/a> \u2013 <a href=\"http:\/\/it-sicherheit-muenchen.com\">www.it-sicherheit-muenchen.com<\/a><\/p>\n<p>&nbsp;<\/p>\n<p><span data-slate-fragment=\"JTVCJTdCJTIydHlwZSUyMiUzQSUyMnBhcmFncmFwaCUyMiUyQyUyMmNoaWxkcmVuJTIyJTNBJTVCJTdCJTIydGV4dCUyMiUzQSUyMkFsbGUlMjB1bnNlcmUlMjBORVdTJTIwdW50ZXIlMjAtJTIwaHR0cHMlM0ElMkYlMkZ3d3cudGVjNG5ldC5jb20lMkZ3ZWIlMkZjYXRlZ29yeSUyRmFsbGdlbWVpbiUyMiU3RCU1RCU3RCU1RA==\">Alle unsere NEWS -&gt; <a href=\"http:\/\/news.tec4net.com\">http:\/\/news.tec4net.com<\/a> \u2013 <a href=\"https:\/\/x.com\/tec4net\">https:\/\/x.com\/tec4net<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Noch bevor Microsoft Sicherheitsupdates f\u00fcr die schwerwiegende Sharepoint-L\u00fccke &#8222;ToolShell&#8220; ver\u00f6ffentlicht hat, sind etwa 100 Organisationen von Cyberangriffen betroffen gewesen. Laut Reuters, das sich auf das Sicherheitsunternehmen Eye Security bezieht, fand die erste Angriffswelle bereits vor Ver\u00f6ffentlichung eines Patches statt. Die Angriffe betrafen vor allem Installationen in den USA und Deutschland. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[3891,2092,3675,3890,3893,3892,3889],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Kritische Sharepoint-L\u00fccke: Hacker-Angriff trifft 100 Organisationen - tec4net<\/title>\n<meta name=\"description\" content=\"Unsere IT-Experten beraten Sie im Bereich Consulting, IT-Security und Datenschutz in M\u00fcnchen | tec4net GmbH - seit 2003\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.tec4net.com\/web\/2025\/08\/04\/31351\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kritische Sharepoint-L\u00fccke: Hacker-Angriff trifft 100 Organisationen - 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