IT koehler blog - all related IT news

Posted on 11. January 202211. January 2022 by A.K.

Today a new exchange update KB5008631 for all supported versions of exchange was released. See the original link to Exchange Team blog:https://techcommunity.microsoft.com/t5/exchange-team-blog/released-january-2022-exchange-server-security-updates/ba-p/3050699 Here are the links to download manually: Exchange Server 2013 CU23 Exchange Server 2016 CU21 and CU22 Exchange Server 2019 CU10 and CU11 They say there are some vulnerabilities but no exploit, so there is not that much pressure to […]

Category:common, Microsoft Exchange Server, security

TaggedExchange Patch, Exchange Security, Securitypatch

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Posted on 8. January 202219. January 2022 by A.K.

Some days ago Microsoft announced the final ending of basic authentication in Exchange Online. Today, we are announcing that, effective October 1, 2022, we will begin to permanently disable Basic Auth in all tenants, regardless of usage, with the exception of SMTP Auth. https://techcommunity.microsoft.com/t5/exchange-team-blog/basic-authentication-and-exchange-online-september-2021-update/ba-p/2772210 So why disabling Basic Auth? It works like a charm! Basic […]

Category:common, Microsoft 365, security

Taggedbasic auth, Basic Authentication, exchange online, M365, security

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Posted on 5. January 20225. January 2022 by A.K.

After some years (8 years more precisely) the moment arrived that Blog IT koehler renewed its coporate logo on turn of year 2022. This change has been in mind about some time and was implemented these days. Because I’m not a great talent in designing, I told a friend of mine to create a new […]

Category:common

Taggedci, Logo

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Posted on 23. December 202123. December 2021 by A.K.

I thought my holidays already started, but there is a very critical sercurity vulnerability included in Microsoft Active Directory. More precisely there are two vulnerabilities, CVE-2021-42287 and CVE-2021-42278 . Vulnerability CVE-2021-42278 contains an attack which is also known as sAMAccountName spoofing or impersonation. It is possible to rename Computer Accounts of DomainController to impersonate them. […]

Category:common, Microsoft active directory, security

Taggedactivedirectory, samaccountname, security, Securitypatch

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Posted on 21. December 202119. January 2022 by A.K.

Dear readers, I would like to take this opportunity to wish you a Merry Christmas and a good start into the year 2022. The year 2021 was very turbulent for my family and me. We have had a new family member and have also implemented some other projects around the house.Not to forget the professional […]

Category:common

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New Exchange Security Update January 2022 KB5008631

Exchange Online and disabling Basic Authentication by Microsoft

New logo IT koehler

Active Directory bugs / vulnerability november 2021 CVE-2021-42287

Merry Christmas everyone

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