Tag Archives: Windows Server

Exploit for Kerberos authentication vulnerability CVE-2020-17049

[German]A security researcher from NetSPI, who discovered the Kerberos authentication vulnerability CVE-2020-17049, has now published the details as well as an exploit. Anyone running an affected environment on Windows Server should react and patch now at the latest. Advertising

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Microsoft patches new Windows Kerberos vulnerability CVE-2020-16996 with Dec 2020 updates

[German]With the December 2020 updates, Microsoft is making another attempt to use a layered approach to address the new Kerberos vulnerability CVE-2020-16996 in Active Directory Domain Controllers (DCs). This is stated in a support article published on December 8, 2020. … Continue reading

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Windows: Incorrect disk layout causes trouble with updates and feature upgrades

[German]If the disk layout on Windows machines does not comply with Microsoft specifications, this can quickly lead to trouble. During update installation, rollbacks occur and the installation of the feature updates fails due to an error message. Here is a … Continue reading

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0patch fixes 0-day vulnerability in Windows 7/Server 2008 R2

[German]ACROS Security has released a micropatch for a 0-day vulnerability in Windows 7 and Server 2008 R2 (without ESU license). Here is some information about this micropatch. Advertising

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Windows-Updates with Fix for Kerberos-Authentication-Problem (11/19/2020)

[German]Microsoft has published further special updates for various Windows Server versions as of November 19, 2020. These are intended to fix the problems with Kerberos authentication of ticket renewals on domain controllers for the operating system versions concerned. Advertising

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0patch fixes CVE-2020-1300 in Windows 7/Server 2008 R2

[German]ACROS Security has released a micropatch for the CVE-2020-1300C (RCE) vulnerability for Windows 7 and Server 2008 R2 (without ESU license). Here is some information about this micropatch. Advertising

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Windows out-of-band updates with fix for Kerberos authentication ticket renewal issue

[German]Microsoft has been rolling out special updates for various versions of Windows Server since November 17, 2020. These are intended to solve the problems with Kerberos authentication of ticket renewals on domain controllers. Advertising

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Windows 10/Windows Server: Update KB4586781 causes issues with Kerberos DC authentication

[German]Short information for administrators in Windows 10 environments (version 2004 and 20H2), where Windows Server 2004/20H2 is already in use. Update KB4586781, released on November 10, 2020, causes issues with Kerberos authentication on domain controllers (DC) in very specific environments … Continue reading

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Office 365: Download fails (in ConfigMgr) after Oct. 2020 Updates

[German]Administrators (or users) who have installed the October 2020 updates (for Windows 10 and Windows Server pendants) are probably facing issues. ConfigMgr and other tools will (possibly) not be able to download files for Microsoft Office 365 updates afterwards. The … Continue reading

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Microsoft specifies patching of the Netlogon vulnerability (CVE-2020-1472)

[German]Microsoft has revised and clarified its guidance on how to close the Netlogon vulnerability in Windows Server installations that act as domain controllers. This is in response to feedback from users who were confused by previous support posts. Advertising

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