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Category Archives: Virtualization
No Hyper-V Server 2022, Hyper-V-Server is dead
[German]Microsoft released its Windows Server 2022 last month without much notice (see Windows Server 2022 LTSC released). Because users have already asked whether there is also a Hyper-V Server 2022, I'll cover it in a separate article. The bad news … Continue reading
Posted in Virtualization, Windows
Tagged Hyper-V Server, Virtualiszation, Windows Server
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VMware security updates (August 2021)
[German]VMware has released security updates to address vulnerabilities in several products. An attacker could exploit some of these vulnerabilities to take control of an affected system. VMware vRealize Operations, VMware Cloud Foundation and vRealize Suite Lifecycle Manager are affected. US-CERT … Continue reading
VirtualBox 6.1.26
[German]Small addendum: Oracle's developers have already released Virtualbox version 6.1.26 on July 28, 2020. It is a maintenance update that is supposed to fix bugs of previous versions.
VMware ESXi security updates fix vulnerabilities
[German]Vendor VMware has released a new VMware Security Advisory VMSA-2021-0014 with a severity rating of "Important" as of July 13, 2021. VMware ESXi updates fix authentication and denial of service vulnerabilities (CVE-2021-21994, CVE-2021-21995). The whole thing affects VMware ESXi and … Continue reading
Posted in Security, Update, Virtualization
Tagged Security, Update, Virtualisierung, VMware ESXi
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Windows 10: Outlook 2013 fails, if virtualization software is installed
[German]Today a blog post about a crude problem reported to me by a user (thanks for pointing it out). The Microsoft Outlook 2013 used in the environment seems to have problems under Windows 10 from version 2004, if one is … Continue reading
Posted in issue, Office, Virtualization, Windows
Tagged issue, Outlook, Virtualisierung
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Why ISL Online: Critical factors when choosing a remote desktop solution
[Sponsored Post]In the rapidly evolving IT world, choosing the right remote desktop software is critical for organizations that value security, ease of use and reliability. One provider of secure remote access that has been on the market since 2001 is ISL Online, which presents some considerations for choosing such software below. More ...
Windows Server 2019: VM dops BSOD due to Windows Defender
[German]German blog reader Carsten W. has already pointed out to me a few days ago a problem that was bothering him a bit. A virtual machine with Windows Server 2019 running under VMware ESX had gone bye-bye with a blue … Continue reading
Attacks on VMware vCenter servers, proof of concept available
[German]At the end of May, in the post Vulnerability CVE-2021-21985 in vSphere Client, patch it! I had reported about a CVE-2021-21985 vulnerability in VMware vSphere client and called for patching. Now, not only has a proof of concept (PoC) become … Continue reading
PoC for Hyper-V vulnerability (CVE-2021-28476) in vmswitch.sys
[German]There is a remote code execution vulnerability (CVE-2021-28476) in Microsoft's Hyper-V virtualization solution that allows a guest-to-host attack. Microsoft provided security updates in May 2021, so the vulnerability could be closed. Now a security researcher has published a proof of … Continue reading
Vulnerability CVE-2021-21985 in vSphere Client, patch it!
[German]VMware has issued an urgent security warning to users of vSphere. The vSphere Client (HTML5) contains a critical vulnerability CVE-2021-21985 that could allow remote code execution due to a lack of input validation in the Virtual SAN Health Check plug-in, … Continue reading
Posted in Security, Software, Virtualization
Tagged Security, Virtualization, VMware
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VMware publishes details of security vulnerability
[German]VMware has fixed an authentication bypass vulnerability in data center security software with a patch. The security update should be installed as soon as possible.