PrintNightmare: Point-and-Print allows installation of arbitrary files

Posted on 2021-07-19 by guenni

Sicherheit (Pexels, allgemeine Nutzung)[German]Regarding the problem, originally called PrintNightmare, that Windows systems are vulnerable via the print spooler service, there is a new warning. A remote print server that can be accessed by unauthorized parties allows arbitrary malicious files to be installed on clients via point-and-print. The US-CERT has issued a new warning about this. However, there is a possibility to mitigate this vulnerability via group policies.

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DevilsTongue spyware from Israeli company Candiru exploited Windows vulnerabilities

Posted on 2021-07-19 by guenni

Sicherheit (Pexels, allgemeine Nutzung)[German]After I just reported about spy Trojans of the Israeli NSO Group on smartphones (see Pegasus spy software of NSO Group on many smartphones), I can also reveal the second case. The Israeli company Candiru exploited vulnerabilities in Windows to install their spyware called DevilsTongue. However, the vulnerabilities have been fixed in the meantime.

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NSO Group's Pegasus spyware on many smartphones

Posted on 2021-07-19 by guenni

Sicherheit (Pexels, allgemeine Nutzung)[German]It started with a leaked list of about 50,000 phone numbers. Investigative research by the media then shed light on the surveillance of smartphone users by governments and private organizations. Numerous people around the world were spied on using Pegasus spy software from Israel's NSO Group. The company seems to provided authoritarian states with the opportunity to surveil journalists, human rights activists and members from NGOs.

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Reading: What was learned when Microsoft switched to a zero trust network architecture

Posted on 2021-07-18 by guenni

Sicherheit (Pexels, allgemeine Nutzung)[German]Zero Trust is a timely approach to addressing the cybersecurity challenges posed by the rise of telecommuting, the proliferation of personal devices and outdated physical security perimeters. At Microsoft, they have taken this step and learned various lessons, which Abbas Kudrati, Cloud & Cybersecurity Strategist, summarized in an article.

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Security Settings for Failover Clustering

Posted on 2021-07-17 by guenni

[German]Security is at the forefront of many administrator's minds and with Failover Clustering. Microsoft did some improvements with Windows Server 2019 and Azure Stack HCI with regards to security.

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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 ...

Exchange security updates from July 2021 breaks ECP and OWA

Posted on 2021-07-17 by guenni

Update[German]As of July 13, 2021, Microsoft has released security updates for Exchange Server 2013, Exchange Server 2016 and Exchange Server 2019. These July updates are intended to address vulnerabilities reported by external security partners and found by Microsoft's internal processes on Exchange Server on-premises installations. However, on some systems, installing the security updates causes the Exchange Control Panel (OWA) and Outlook Web App (OWA) to stop working. Microsoft has since confirmed the issue (seems an OAuth certificate thing).

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Microsoft Defender for Identity can detect PrintNightmare attacks

Posted on 2021-07-17 by guenni

Sicherheit (Pexels, allgemeine Nutzung)[German]Microsoft Defender for Identity (formerly Azure Advanced Threat Protection or Azure ATP) has been given the ability by Microsoft to detect and defend against attacks via the PrintNightmare vulnerability. This primarily affects exploitation of vulnerabilities in the Windows Print Spooler service (including the actively exploited CVE-2021-34527).

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Google Chrome 91.0.4472.164 fixes 0-day vulnerability

Posted on 2021-07-17 by guenni

[German]Google has released Google Chrome 91.0.4472.164 for Windows, Mac and Linux on July 15, 2021. It is a security update that fixes 7 vulnerabilities in older browser versions at once. The browser should be patched quickly, as a 0-day vulnerability CVE-2021-30563, rated as high, is already being exploited in the wild.

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Windows vulnerability PrintNightmare: It's not over yet (July 15, 2021)

Posted on 2021-07-16 by guenni

Windows[German]Bad news for Windows users, because the issue known as PrintNightmare, which vulnerabilities in the Print Spooler service can lead to privilege escalation, still exists. The special updates of July 6 and 7, as well as the regular security updates of 7/13/2021, leave more vulnerabilities open. On Twitter, someone demonstrated how to install printers as a standard user on a fully patched system. And Microsoft released a new security advisory earlier in the day.

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Windows 10 21H2 announced and first Insider Preview released

Posted on 2021-07-16 by guenni

Windows[German]Microsoft has announced the next Windows 10 feature update to version 21H2 on July 15, 2021. This is supposed to be generally released in the second half of 2021 – I assume in October. Currently, the first preview is available for Windows Insiders to test. The new version will again be distributed as a small feature update. In addition, an LTSC version based on 21H2 with five years of support and an IoT version with 10 years of support are planned. Here is an overview of what is known.

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