Adobe Acrobat (Reader) DC 21.001.20155

Posted on 2021-05-12 by guenni

[German]Adobe released a security update for Adobe Acrobat (Reader) DC to version 21.001.20155 on May 11, 2021. The release notes provide download addresses for the Windows and macOS installers. Security bulletin APSB21-29 states that the update to the product is intended to address several critical and important vulnerabilities. Successful exploitation could lead to the execution of arbitrary code in the context of the current user.  Adobe has received a report that CVE-2021-28550 has been exploited on a limited basis in attacks against Adobe Reader users on Windows.  (via)

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Patchday: Windows 7/Server 2008 R2-Updates (May 11, 2021)

Posted on 2021-05-12 by guenni

Windows[German]As of May 11, Microsoft has released various updates for Windows 7 SP1 systems that are still in ESU support. However, these security updates are also available for Windows Server 2008 R2 with ESU support. Here is some information about the Monthly Rollup and Security only updates for this operating system.

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Patchday: Windows 8.1/Server 2012-Updates (May 11, 2021)

Posted on 2021-05-12 by guenni

Windows[German]As of May 11, Microsoft has released various updates for Windows 8.1. These security updates are also available for Windows Server 2012 R2. Here is some information on the Monthly Rollup and Security only updates for these operating systems.

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Patchday: Windows 10-Updates (May 11, 2021)

Posted on 2021-05-12 by guenni

[German]On May 11, 2021 (Microsoft's second Tuesday of the month patchday), several cumulative updates were released for supported Windows 10 builds. Here are some details about the respective security updates for the May 2021 patchday.

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Ransomware attack on the US pipeline – the house is burning

Posted on 2021-05-12 by guenni

Sicherheit (Pexels, allgemeine Nutzung)[German]Last week, there was a ransomware attack on the operator of a pipeline on the US East Coast, as a result of which the pipeline had to be shut down. Now, figuratively speaking, everywhere is on fire. The U.S. president has declared a local state of emergency. And the consequences are stirring up so much dust that the DarkSide gang has announced extraordinary steps. In addition, it has just come to light that the insurance company AXA will no longer reimburse ransomware ransom payments.

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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 ...

Microsoft Security Update Summary (May 11, 2021)

Posted on 2021-05-12 by guenni

[German]On May 11, 2021, Microsoft released security updates for Windows clients and servers, for Office, etc. – as well as for Microsoft Exchange – have been released. Below is a compact overview of these updates.

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Bug: Outlook shows only the first lines of an e-mail (May 10/11, 2021)

Posted on 2021-05-12 by guenni

[German]Currently, reports are piling up that an update of Outlook (C2R version) may have caused a bug. The mail program suddenly displays only the first lines of emails. Here is a summary of what has come to my attention. Addendum: Microsoft has released a Fix.

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Security Updates (KB5003435) for Microsoft Exchange Server (May 11, 2021)

Posted on 2021-05-12 by guenni

Sicherheit (Pexels, allgemeine Nutzung)[German]Microsoft has announced on May 11, 2021 – the expected (see Is a hotfix for Microsoft Exchange coming today? (May 11, 2021)) Security updates released for Exchange Server 2013, Exchange Server 2016 and Exchange Server 2019. This is to immediately close a Microsoft Exchange Server spoofing vulnerability (CVE-2021-31209). Security update KB5003435 is available for download from the Microsoft Update Catalog.

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WSUS does not receive updates (May 11, 2021)

Posted on 2021-05-11 by guenni

Windows Update[German]Currently, there are more and more reports that no updates are found in the Windows Server Update Service (WSUS). Only Defender updates are trickling in – it looks like Microsoft is not (yet) making the May 11, 2021 security updates available in WSUS.

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Is a hotfix for Microsoft Exchange coming today? (May 11, 2021)

Posted on 2021-05-11 by guenni

Sicherheit (Pexels, allgemeine Nutzung)[German]A brief note and heads up for administrators of Microsoft Exchange on-premises systems. Reserve some time today (05/11/2021) to patch Exchange servers.  If the available information is correct, Microsoft is rolling out a critical hotfix for Microsoft Exchange Server in the coming hours (around 10:00 a.m. PST), which should be installed promptly.

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