Microsoft probably secretly fixes vulnerability in Defender under Windows

Posted on 2022-02-11 by guenni

Windows[German]Microsoft Defender attracted attention some time ago due to a vulnerability in Windows that allowed malware to query the folders left out by the antivirus. It now looks like Microsoft has quietly corrected this vulnerability, because administrator privileges are now required to access this information on Windows. However, it is probably not yet fixed on all Windows systems and it is also unclear whether the fix will come via Windows Update (February 2022 patchday) or via an update to Defender on Windows.

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QNAP Update QTS 5.0.0.1932 build 20220129 closes SAMBA vulnerability CVE-2021-44142

Posted on 2022-02-11 by guenni

Sicherheit (Pexels, allgemeine Nutzung)[German]Taiwanese manufacturer QNAP has provided firmware updates for its NAS systems that are supposed to fix the SMB root vulnerability (CVE-2021-44142) in SAMBA. Here are some notes on updating QTS 5.0.0 to close the vulnerability, published by manufacturer QNAP in a security advisory dated late January 2022. QNAP also warns about the CVE-2022-0336 vulnerability and recommends disabling SMBv1.

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Emsisoft releases decryptor for Maze, Egregor and Sekhmet ransomware

Posted on 2022-02-11 by guenni

Sicherheit (Pexels, allgemeine Nutzung)[German]Security vendor Emsisoft has released a decryptor for victims of the Maze, Egregor and Sekhmet ransomware. With it, files encrypted by this ransomware can be restored. The decryptor became possible after a member from the "developer circles" posted the master key and announced the exit of the ransomware groups. Here is some information about it.

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Exchange Online: Mysterious Outlook Disconnected Error 0x8004011D

Posted on 2022-02-11 by guenni

[German]A German blog reader just notified me about a problem with Microsoft Exchange Online that he was facing suddenly with Microsoft Outlook (from Office 365). A solution that had been running smoothly for years suddenly is causing issues, when synchronizing between Microsoft Outlook and Exchange Online. The error 0x8004011D (disconnected) was reported. With the help of Microsoft support, the problem could be solved – multifactor authentication played a role.

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Cyber attack on Vodafone Portugal affects all services

Posted on 2022-02-10 by guenni

Sicherheit (Pexels, allgemeine Nutzung)[German]Telecommunications provider Vodafone Portugal suffered a serious cyberattack on Monday, February 7, 2022. This was likely designed to cause maximum destruction, according to the company, and severely affected Vodafone services such as LTE and 5G mobile, TV cable network, SMS, and voice and voicemail services. Currently, the provider still seems to be struggling with restoring services.

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Why ISL Online: Critical factors when choosing a remote desktop solution

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.Net Framework Updates (February 8, 2022)

Posted on 2022-02-10 by guenni

Update[German]Another small addendum – as of February 8, 2022, Microsoft has released .NET Framework updates for various Windows versions. These updates fix bugs and security vulnerabilities in the affected .Net Framework versions. Here is an overview of these .NET Framework updates.

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Microsoft Security Update Revisions (Feb. 8, 2022)

Posted on 2022-02-10 by guenni

Sicherheit (Pexels, allgemeine Nutzung)[German]Microsoft emailed admins about various revisions to its security advisories as of Feb. 8. The talk about a Remote Desktop Services remote code execution vulnerability, a Windows Kernel Memory Information Disclosure vulnerability, a Microsoft Diagnostics Hub Standard Collector Runtime Elevation of Privilege vulnerability and a Microsoft Power BI Information Disclosure vulnerability. In addition, there was a new Servicing Stack Update (SSU) in Feb. 2022, see ADV990001. However, everything has only informal character, Microsoft only adjusted the descriptions. I'll just post the relevant information here in the blog without comment.

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Patchday: Microsoft Office Updates (February 8, 2022)

Posted on 2022-02-10 by guenni

Update[German]On February 8, 2022 (second Tuesday of the month, Microsoft Patchday), Microsoft released several security-related updates for still-supported Microsoft Office versions and other products. RCE vulnerabilities are closed again. Here you can find an overview of the available updates.

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Thunderbird 91.6.0

Posted on 2022-02-09 by guenni

[German]The developers of the Thunderbird email client have released Thunderbird 91.6.0 as of February 8, 2022. This is a maintenance update for the 91 development branch that makes fixes. Here is a brief overview.

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Firefox 97 and 91.6 ESR

Posted on 2022-02-09 by guenni

Mozilla[German]Mozilla Mozilla developers released versions 97.0 and 95.6esr of the Firefox browser on February 8, January 2022. Firefox 97 is a new development branch, while the ESR version is a bug-fix update to fix bugs.

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