Microsoft Releases Quarterly Updates to Exchange Server

Microsoft, in their¬†February 2019 quarterly updates, announced their release of Exchange Server quarterly updates will include "critical security" fixes, plus changing architectures of all supported Exchange Server products. ¬†Very uncommon to include security updates along with a CU, and most assume that the EWS/NTLM relay attack issue accelerated this plan. One of the major changes... Continue Reading →

Exchange Web Services Change in February 2019 Update

One of those product changes within the February 2019 Exchange Updates affects the architecture of Exchange Web Services (EWS) for all supported Exchange Server products. The quarterly update is resolving push notification security issues in Exchange Web Services so that they can't be abused by NTLM relay attack methods. Microsoft has changed the notifications contract... Continue Reading →

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