[German]The question why NAS manufacturer QNAP recently updated its devices via forced update has now been answered. The attacks by the DeadBolt ransomware that took place in January 2022 were only possible if the NAS owners made them accessible on the Internet on the one hand and did not install any updates on the other. This is because the exploited vulnerability was patched in December 2021.
Citrix, a cloud computing and virtualization company, has announced plans to be acquired by affiliates of global investment firm Vista Equity Partners and an affiliate of Elliott Investment Management called Evergreen Coast Capital Corporation. Continue reading
[German]Microsoft has just released information that affects Windows 10 and Windows 11, as well as their server counterparts. In order to successfully install updates on these machines, they apparently have to be accessible online via the Internet for a longer period of time every month (at least two, sometimes up to six hours). Microsoft talks about update compliance and update connectivity – that is, a certain behavior, which is required. If this is not ensured, the system will not receive appropriate updates.
[German]In January 2022, Microsoft closed the CVE-2022-21882 (Win32k Privilege Escalation) vulnerability in Windows 10/11 and Windows Server 20H2 on Patchday. However, the patch was not installed everywhere because of the many collateral damages. Now a public proof of concept (PoC) for this vulnerability is available. Administrators should check if the January 2022 fix updates can be installed to close the vulnerability. Here is a brief overview of this issue.
Microsoft has released Sharepoint Migration Tool (SPMT) 3.5.123.0 in January 2022 with new features to allows users to migrate SharePoint Server 2010.
[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 ...
[German]Microsoft recommends installing the November 2021 security updates on Windows servers that operate as DCs as protection against a domain takeover caused by the vulnerabilities CVE-2021-42287 and CVE-2021-42278. And Micrsooft also recommends enabling so-called enforcement mode to protect against the exploit on all Active Directory domain controllers (in Juli 2022 this will be activated by an update). However, a blog reader now pointed out that this causes collateral damage and Linux clients are often unable to do an AD-join.
[German]Advisory for administrators of HPE Proliant servers running outdated or unpatched HPEs Integrated Lights-out versions. The Internet Storm Center (SANS ISC) warned this week that more than 20,000 HPE Proliant servers were accessible via the Internet. Wouldn't be such a problem if those servers weren't running an outdated iLO version, or hadn't patched known iLO vulnerabilities.
[GermanGeman]QNAP users are currently victims of the DeadBolt ransomware – I didn't have it in the blog, but within a week there were probably over 3,600 victims. The NAS manufacturer is now resorting to drastic measures and is trying to forcibly update the firmware of affected devices. However, this leads to malfunctions on some devices (iSCSI devices no longer work). [German]Microsoft released last night an an email about various revisions to its security advisories. It is about a Windows DCOM server vulnerability and Defender for IoT vulnerabilities. However, everything is only of an informal nature, Microsoft has only adjusted the descriptions. I'll just post the relevant information here on the blog without comment.
[German]The Internet Storm Center (SANS ISC) warns about some new attack scam that is attempted via phishing emails. The attackers are trying to distribute malicious content to users via an ISO file embedded in an HTML page. What was interesting to me was that the ISO cannot be mounted with Windows 10, but contains a VBS file with a dropper for further downloads. It looks like there is an attack vector in testing that tries to disguise the malware from the usual detection methods. That's why I'm posting the whole thing here on the blog.
MVP:
2013 – 2016
WIMVP:
2017 – 2020
