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Security

Microsoft to Begin Upgrading Windows 7 Security in March 2019

In November 2018, Microsoft communicated upcoming changes to Windows 7 security, moving to the SHA-2 algorithm exclusively. We now know the timeline for these changes. The company will deploy the changes methodically, but start the process with March 2019 updates and finishing up in July 2019. Customers running legacy OS versions (Windows 7 SP1, Windows Server 2008 R2 SP1 and Windows Server 2008 SP2) will be required to have SHA-2 code signing support installed on their devices by July 2019. Any devices without SHA-2 support will not be offered Windows updates after July 2019. To help prepare you for this change, we will release support for SHA-2 signing in 2019. Some older versions of Windows Server Update Services (WSUS) will also receive SHA-2 support to properly deliver SHA-2 signed up...

February 2019 .NET Update Contains Security Fixes for Domain Spoofing and Remote Code Execution

Many customers try hard not to have to update the .NET code for Windows. These days, some consider every Windows update as a potential timebomb, but the .NET updates have a long history of being a difficult problem child. Microsoft delivered .NET updates for February 2019 and these updates come with some fixes that may cause some to do a double-take. These may warrant some heightened attention. Here is what’s up… CVE-2019-0613 – Remote Code Execution Vulnerability This security update resolves a vulnerability in .NET Framework software if the software does not check the source markup of a file. An attacker who successfully exploits the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on by using administrative user rights,...

Shared Calendar Workarounds for CUs for Exchange 2016 and 2019

According to Microsoft a bug exists in Cumulative Update 1 for Exchange Server 2019 and Cumulative Update 12 for Exchange Server 2016 where users can no longer accept Share Calendars through an email invitation. Microsoft has supplied the following workarounds. Use one of these until a final resolution is available. > Open the invitation from the Notifications pane in Outlook on the web. > Add the shared calendar manually in Outlook on the web. > Open the invitation in Outlook, and then add the shared calendar.  

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