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Category Archives: Software
ProxyLogon hack: Administrator's Repository for affected Exchange systems
[German]What can I do as an Exchange Server administrator in light of the ongoing waves of attacks on ProxyLogon vulnerabilities? What do I need to be aware of? How do I find out if instances are already compromised? The repository … Continue reading
Chrome News: Version 89.0.4389.90 fixes 0-day vulnerability, new update cycle
[German]Google developers have updated the Chrome browser to version 89.0.4389.90 as of March 12, 20201in the desktop version for Linux, macOS and Windows. This security update fixes a 0-day vulnerability in the older browser versions. And the browser is supposed … Continue reading
Adobe Acrobat (Reader) DC 21.001.20145
[German]Adobe has released an optional update to version 21.001.20145 for Adobe Acrobat DC and Reader DC, effective March 10, 2021. Only one bug has been fixed: Comments are missing from the shared review when done with Reader DC. The update … Continue reading
Exchange hack: new victims, new patches, new attacks
[German]Another short addendum to the never-ending topic of Proxylogon vulnerability and hafnium mass hack. Microsoft has released new updates for old CUs. Around 10 hacker groups are now trying to exploit the vulnerabilities in unpatched Exchange servers, and the list … Continue reading
Microsoft Security Update Summary (March 9, 2021)
[German]On March 9, 2021, Microsoft has released security updates for Windows clients and servers, for Office, Internet Explorer, and so on. Below is a compact overview of these updates.
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 hack: new patches and new findings
[German]Microsoft issued more out-of-band updates for older Microsoft Exchange Server CUs (which have already fallen out of support) last night. In addition, it is now clear, when the attack waves started and what could have protected against the hack, although … Continue reading
Thunderbird 78.8.1 released
[German]The developers of the Thunderbird email client have released Thunderbird 78.8.1 on March 8, 2021. This is a maintenance update for the 78 main version of the email client, which fixes various bugs.
Exchange isues with ECP/OWA search after installing security update (March 2021)
[German]Brief information for administrators of Microsoft Exchange servers who have yet to install the March 2021 security update. The security update released this week by Microsoft for Microsoft on-premise Exchange servers (2010 to 2019) is indeed intended to close four … Continue reading
Important notes from Microsoft regarding the Exchange server security update (March 2021)
[German]Microsoft warns, that installing the March 2021 cumulative security updates for Exchange servers need to be done with administrative privileges. Otherwise the patch will not close the vulnerabilities. In addition, German BSI (Federal Office for Information Security) warns that thousands … Continue reading
Edge 89.0.774.45 released
[German]Microsoft has released the update to Edge 89.0.774.45 on March 4, 2021. It is a new development branch, with this version fixing various vulnerabilities that have already been fixed in Google Chrome. Here is some information about it.