Category Archives: Software

Exchange Server security updates (March 12, 2024)

[German]Microsoft has released security updates for Exchange Server 2016 and 2019 on March 12, 2024. These updates fix security vulnerabilities reported to Microsoft by security partners and found by Microsoft's internal processes. According to Microsoft, the updates should be installed … Continue reading

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Microsoft Security Update Summary (March 12, 2024)

[German]On March 12, 2024, Microsoft released security updates for Windows clients and servers, for Office – and for other products. The security updates eliminate 73 vulnerabilities (CVEs), two of which are 0-day vulnerabilities that are already being exploited. Below is … Continue reading

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How to find weak passwords in Active Directory and eliminate them with PowerShell

[Sponsored Post]Weak or compromised passwords are a known gateway for attackers. If you are able to identify which users in Active Directory (AD) are threatened by this, then PowerShell can help to remedy it. However, PowerShell scripts cannot eliminate basic AD deficits, other tools are needed for this. More ...

Microsoft Outlook RCE vulnerability CVE-2024-21378; patched in February 2024

[German]On February 13, 2024, the remote code execution vulnerability CVE-2024-21378 in Microsoft Outlook was also closed with the security updates. As of March 11, 2024, an in-depth analysis of the vulnerability has now been published, as I saw in a … Continue reading

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Critical vulnerability CVE-2024-21899 allows QNAP NAS access without authentication

[German]Owners of QNAP NAS drives are at risk from the critical vulnerability CVE-2024-21899. This allows access to devices without requiring authentication via username and password. The manufacturer has released security updates to its vulnerable operating systems to close the vulnerability. … Continue reading

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Critical vulnerabilities in VMware products (March 5, 2024)

[German]A short addendum from last week. I recently reported on updates to VMware products. VMware has now classified certain vulnerabilities in its virtualization products as critical in a security advisory. It should therefore be patched quickly, if not already done. … Continue reading

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Exchange Online: Microsoft confirms outgoing emails are rejected as spam (March 2024)

[German]Microsoft has a problem with its Exchange Online instances that can easily sideline its customers. The sender domains for emails are classified as spam and rejected. This means that companies can no longer send mail. After I discussed this several … Continue reading

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Outlook 365 message "Windows search module disabled", Windows Server 2022, terminal server environment (Feb. 2024)

[German]I'm posting a problem here in the blog that was brought to my attention by a blog reader recently. The administrator in question is struggling with the fact that he keeps seeing the message "Windows search module deactivated" in Outlook … Continue reading

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Private equity firm KKR buys VMware end customer business for 4 billion dollars

[German]Another short news from the Broadcom VMware cosmos that reached me at the end of February 2024. According to an announcement, the private equity company KKR will take over the end customer business including the VMware product portfolio. The purchase … Continue reading

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Leap year problem 29 February: Citrix and Sophos on board

[German]It's a leap year, which happens roughly every four years. And there is something even more memorable: Sophos is struggling with the leap year 2024 because there are problems with SSL/TLS decryption in the SOPHOS Central Endpoint Agent. And at … Continue reading

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Microsoft Defender blocks Anydesk clients (since 28 February 2024)

[German]Brief information for everyone. I have just heard from blog readers that the clients of the remote maintenance provider AnyDesk will probably be blocked by Microsoft Defender under Windows from today (28 February 2024). The whole thing is related to … Continue reading

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