Tag Archives: Security

Mirai malware variant V3G4 enables remote access to IoT devices via vulnerabilities

[German]Palo Alto Networks has discovered a new variant of the Mirai malware. The Mirai variant V3G4 exploits multiple vulnerabilities in the firmware of IoT devices to allow remote access. Palo Alto Networks Unit 42 security researchers observed the Mirai variant, … Continue reading

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U.S. Defense Department email server unprotected on the Internet for 2 weeks

[German]Big fail that happened to U.S. Department of Defense (DoD) IT administrators. This week Monday, U.S. Department of Defense strategists secured an unprotected server that had been used to leak terabytes of internal U.S. military emails onto the Internet for … Continue reading

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Caution: Exposed Wi Fi password in Windows

[German]Maybe it is common knowledge – I was not aware of it: Locally logged in users can retrieve the password of a Wi Fi (WLAN) under Windows if it was entered under the same user account. This does not require … Continue reading

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Fortinet fixes critical RCE vulnerabilities in FortiNAC and FortiWeb

[German]Administrators of Fortinet's FortiNAC and FortiWeb need to take action. The vendor released a security advisory this week and fixed critical RCE vulnerabilities. The question that arises: Why only now, isn't the vulnerability CVE-2021-42756 probably known since 2021? Is there … Continue reading

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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

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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 ...


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

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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

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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

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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

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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

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