Some May 2022 Microsoft Security Updates Are Leading to Authentication Failures. Microsoft reported : “After installing updates released May 10, 2022 on your domain controllers, you might see authentication failures on the server or client for services such as Network Policy Server (NPS), Routing and Remote access Service (RRAS), Radius, Extensible Authentication Protocol (EAP), and Protected Extensible Authentication Protocol (PEAP),”.Continue reading “Microsoft May Patch Updates Cause Windows AD Authentication Errors”
Category Archives: microsoft
Released: May 2022 Exchange Server Security Updates
Microsoft released an SU for exchange servers. Starting with this release of Security Updates, Microsoft are releasing updates in a self-extracting auto-elevating .exe package These SUs are available for the following specific builds of Exchange Server: Exchange Server 2013 CU23 Exchange Server 2016 CU22 and CU23 Exchange Server 2019 CU11 and CU12 Manual run of /PrepareAllDomains is required : Because of additionalContinue reading “Released: May 2022 Exchange Server Security Updates”
Exchange 2022 Cumulative Update
After almost an year Microsoft released new cu for exchange 2019 and exchange 2016. the update includes the latest SUs including the updates released in the March 2022 SUs. As published on The Exchange Team (https://techcommunity.microsoft.com/t5/exchange-team-blog/released-2022-h1-cumulative-updates-for-exchange-server/ba-p/3285026) the most update are : Servicing Model Changes Microsoft announcing changes to there update delivery model for Exchange Server. Microsoft areContinue reading “Exchange 2022 Cumulative Update”
something went wrong OWA Exchange Server
After apply Security Update (SU) on exchange server you get the error : “something went wrong” (error 500) when you try to work with OWA. The two reasons for this error are : apply the SU without admin elevated permissions (run the msp file form “cmd window” without “run as administrator”) Missing or Expire AuthContinue reading “something went wrong OWA Exchange Server”
Microsoft March 2022 Patch Tuesday – fixes 71 flaws, 3 zero-days
Microsoft has fixed 71 vulnerabilities with three classified as Critical. Three of the bugs are listed as publicly known zero-days, but none of them are listed as having been exploited in the wild (thus far) : CVE-2022-21990 – Remote Desktop Client Remote Code Execution Vulnerability CVE-2022-24459 – Windows Fax and Scan Service Elevation of Privilege Vulnerability CVE-2022-24512 – .NETContinue reading “Microsoft March 2022 Patch Tuesday – fixes 71 flaws, 3 zero-days”
Microsoft February 2022 Security Updates
Microsoft has fixed 48 vulnerabilities and with it comes fixes for one zero-day vulnerability CVE-2022-21989 – Windows Kernel Elevation of Privilege Vulnerability This release consists of security updates for the following products, features and roles. Azure Data Explorer Kestrel Web Server Microsoft Dynamics Microsoft Dynamics GP Microsoft Edge (Chromium-based) Microsoft Office Microsoft Office Excel Microsoft Office OutlookContinue reading “Microsoft February 2022 Security Updates”
Recent emails might not appear in search results in the Microsoft Outlook desktop app KB5008212
After installing the November 22, 2021 or later updates, recent emails might not appear in search results in the Microsoft Outlook desktop app. This issue is related to emails that have been stored locally in a PST or OST files. It might affect POP and IMAP accounts, as well as accounts hosted on Microsoft ExchangeContinue reading “Recent emails might not appear in search results in the Microsoft Outlook desktop app KB5008212”
January 2022 updates causing unexpected reboots
Update (18/1/22) Microsoft released OOB updates they are available for download on the Microsoft Update Catalog, and some of them can also be installed directly through Windows Update as optional updates. Microsoft Update Catalog UPDATE (17/1/22): Microsoft has confirmed they are investigating the issues. The updates are remove from the windows update , but they availableContinue reading “January 2022 updates causing unexpected reboots”
Released: January 2022 Exchange Server Security Updates
Microsoft has released security updates for vulnerabilities found in any version of: Exchange Server 2013 Exchange Server 2016 Exchange Server 2019 These updates are available for the following specific builds of Exchange Server: IMPORTANT: If manually installing security updates, you must install .msp from elevated command prompt (see Known Issues in update KB article). Exchange Server 2013 CU23 ExchangeContinue reading “Released: January 2022 Exchange Server Security Updates”
CLIUSR certificate expiration
What is the CLIUSR Account? With Exchange 2016-19 / Server 2016-19 set up in DAG. you get an alert in ECP that says “The certificate ‘CLIUSR’ on server ‘servername’ is about to expire on ‘date’” The CLIUSR account is a local user account created by the Failover Cluster feature. Windows Server Failover Cluster service uses thisContinue reading “CLIUSR certificate expiration”