Social networks
Awards
MVP:
2013 – 2016
WIMVP:
2017 – 2020
Category Archives: Security
Citrix Security Updates (Feb. 2023) and Issues with the Citrix App
[German]Another addendum from this week regarding the manufacturer Citrix. Citrix has issued a security bulletin for the vulnerabilities CVE-2023-24484 and CVE-2023-24485 in the Citrix Workspace App for Windows. So administrators using the Workspace app should update. In addition, a blog … Continue reading
Cyberattack on German airports, was Lufthansa disruption also a Killnet cyberattack?
[German]On February 16, 2023 the websites of several German airports were down due to DDoS attacks by suspected Russian cyber attackers. And this week Wednesday, after all, there was a Lufthansa IT outage that was originally attributed to fiber optic … Continue reading
February 2023 Patchday: EWS problems after Exchange Server security update
[German]After the installation of the February 14, 2023 security updates, I got some reports from administrators that Exchange Web Services (EWS) is causing issues. For example, the calendar update isn't working. Uninstalling the security update solved the problem. Microsoft has … Continue reading
Patchday: Microsoft Office Updates (February 14, 2023)
[German]On February 14, 2023 (second Tuesday of the month, Microsoft Patchday), Microsoft released several security-related updates for still-supported Microsoft Office versions and other products. A critical remote code execution vulnerability in Word is closed. Below is an overview of the … Continue reading
Windows 7/Server 2008 R2; Server 2012 R2: Updates (February 14, 2023)
[German]As of February 14, various security updates have been released for Windows Server 2008 R2 (in its 4th ESU year) as well as Windows Server 2012/R2 (the updates may still install on Windows 7 SP1 and Windows 8.1). Here is … Continue reading
Posted in Security, Update, Windows
Tagged Patchday 2.2023, Security, Update, Windows Server
Leave a comment
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 ...
Patchday: Windows 11/Server 2022 Updates (February 14, 2023)
[German]On February 14, 2023 (second Tuesday of the month, Patchday at Microsoft), Microsoft also released cumulative updates for Windows 11 22H1 and 22H2. In addition, Windows Server 2022 received an update. Here are some details about these updates, which are … Continue reading
Posted in Security, Update, Windows
Tagged Patchday 2.2023, Security, Update, Windows 11, Windows Server 2022
Leave a comment
Patchday: Windows 10 Updates (February 14, 2023)
[German]On February 14, 2023 (second Tuesday of the month, Patchday at Microsoft), several cumulative updates were released for the supported Windows 10 builds (from RTM version to current version) as well as for the Windows Server counterparts. Here are some … Continue reading
Posted in Security, Update, Windows
Tagged Patchday 2.2023, Sicherheit, Update, Windows 10
Leave a comment
Exchange Server Security Updates (February 14, 2023)
[German]Microsoft has released security updates for Exchange Server 2013, Exchange Server 2016, and Exchange Server 2019 as of February 14, 2023. These security updates close four vulnerabilities (rated as important) in this software. The updates are intended to be installed … Continue reading
Microsoft Security Update Summary (February 14, 2023)
[German]On February 14, 2023, Microsoft released security updates for Windows clients and servers, for Office, etc. – as well as for other products – released. The security updates fix 75 vulnerabilities, of which 9 are critical, 66 are important and … Continue reading
LocalPotato NTLM Authentication Vulnerability (CVE-2023-21746)
[German]In mid-January 2023 month, I had pointed out a local NTLM authentication vulnerability (CVE-2023-21746) in my German blog post Nach RemotePotato0 kommt die Windows Local Potato NTLM-Schwachstelle (CVE-2023-21746). The two security researchers Andrea Pierini &anAntonio Cocomazzi refer to this as … Continue reading