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Category Archives: Software
Exchange Server: Authentication bypass with ProxyToken
[German]In the April 2021 cumulative updates, Microsoft fixed a vulnerability in its on-premises Exchange servers that allowed attackers to change configuration without authentication. This would have allowed an unauthenticated attacker to change the configuration for mailboxes of arbitrary users. This … Continue reading
Exchange Server 2016-2019: Custom attributes in ECP no longer updatable after CU installation (July 2021)
[German]The installation of the latest CUs from July 2021 for Microsoft Exchange Server bricks the ability to update custom attributes in the Exchange Control Panel (ECP). That is what some user reports suggest. This affects different on-premises Exchange versions. Here's … Continue reading
Thunderbird 91.0.3
[German]The developers of the Thunderbird email client have already released another bug fix update on August 26, 2021 (version 91 is still dewy, on August 17, 2021 there was a maintenance and security update to version 91.0.1 and on 8/23/2021 … Continue reading
SteelSeries software enables admin rights (LPE) on Windows
[German]After the Razer case, the next clunker has now come to light. After it became known that standard users can become administrators with Razer mice via the driver installation, a security researcher took a closer look at the SteelSeries device … Continue reading
ProxyShell, ProxyLogon and Microsoft's contradictious Exchange doc for virus scan exceptions
[German]On August 20, 2021, Microsoft published recommendations on the subject of virus protection for on-premises Microsoft Exchange Servers. Recommendations are also given there regarding the exclusion of certain folders from virus scanning. On the other hand, we are experiencing waves … Continue reading
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 ...
Firefox 91.0.2
[English]On August 24, 2021, the Mozilla developers have already released version 91.0.2 as a maintenance update of the Firefox browser. According to the release notes, there are only two bug fixes. High contrast mode is no longer enabled by default … Continue reading
Outlook Add-On for Microsoft Edge
[German]Microsoft has an extension (add-on) for the Edge browser that allows access to various Outlook services (hotmail.com or outlook.com) such as Mail, Calendar, Teams, etc. directly in the browser.
Thunderbird 91.0.2
[German]The developers of the Thunderbird email client have recently released version 91 (only available as a download and not as an update). Now, a maintenance and security update to version 91.0.1 has been released on August 17, 2021, and version … Continue reading
Azure AD Connect 2.0.10.0 released as Hotfix
[German]Brief note to administrators who are also responsible for Microsoft Azure. Microsoft has released Azure AD Connect 2.0.10.0. This is intended as a hotfix to work around issues that occur when renaming a domain.
Wave of attacks, almost 2,000 Exchange servers hacked via ProxyShell
[German]I have been waiting for this for a long time, but now the feared has happened. Since Friday, there has been a massive wave of attacks on unpatched Microsoft Exchange servers via the ProxyShell vulnerability. Huntres has already discovered over … Continue reading