Tag Archives: Exchange

Update for Exchange Extended Protection script, but still errors

[German]August 2022 security updates for Microsoft Exchange (on-premises solution) requires, to enable Extended Protection (EP) to close all vulnerabilities. The activation is done via script, which Microsoft provided – but this script caused isses. Now Microsoft has released an updated … Continue reading

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Exchange Server 2013: Microsoft's tips on decommissioning the systems

[German]Administrators responsible for managing Exchange Server 2013 systems should start planning about replacing these systems. Because in April 2023, its support will expire. Microsoft has now published some advice on replacing Exchange Server 2013. Advertising

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Is Windows Update KB5015811 causing Exchange performance issues?

[German]Quick poll to the administrators among the readership who are running a Microsoft Exchange on-premises installation on Windows Server 2019. Have you experienced any performance issues with Microsoft Exchange after installing the July 2022 update? I got a report from … Continue reading

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Kaspersky finds SessionManager backdoor left by malware in IIS/Exchange servers worldwide

[German]Security vendor Kaspersky has come across a little-known backdoor, undetected by antivirus solutions, that leaves malware on Microsoft Exchange servers in the IIS module. There are infections of the so-called SessionManager backdoor in Exchange systems worldwide. The SessionManager backdoor enables … Continue reading

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Microsoft Exchange Server: Remote Code Execution vulnerability CVE-2022-23277 exploitable despite patch?

[German]Are Microsoft Exchange servers on the current patch level still vulnerable via the remote code execution vulnerability CVE-2022-23277? Some fragments of information have just come to my attention that at least raise questions. In any case, the disclosure of the … Continue reading

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Exchange 2016/2019 Mitigation Service Error 1008 due to expired certificate

[German]Today another piece of information for administrators of Microsoft Exchange servers who this week suddenly receive an Error 1008 on Exchange 2016 or 2019 in the event logs, which is triggered by the Mitigation Service. A blog reader brought this … Continue reading

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Exchange Server Security Updates (May 10, 2022)

[German]Microsoft has released security updates for Exchange Server 2013, Exchange Server 2016 and Exchange Server 2019 as of May 10, 2022. These updates are required to address vulnerabilities reported by external security partners and found through Microsoft's internal processes. The … Continue reading

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Exchange Server CUs (April 20, 2022)

[German]Microsoft has released quarterly Exchange Cumulative Updates (CU) for April 20, 2022. The cumulative updates (CUs), which will now only be offered semi-annually, are available for Exchange Server 2016 and Exchange Server 2019. These CUs include fixes for customer-reported issues, … Continue reading

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New IcedID malware campaign targets unpatched Exchange Server (March 2022)

[German]Another note to administrators of Microsoft Exchange Servers. Security researchers have observed a malware campaign that distributes the IcedID banking Trojan and targets Microsoft Exchange Servers that have not received all security updates. The attackers are attempting to hook into … Continue reading

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Issues with Exchange March 2022 Updates

[German]As of March 8, 2022, Microsoft has released several cumulative updates for Microsoft Exchange Server 2013, 2016 and 2019. However, some systems are experiencing issues such as Exchange Control Panel (ECP) no longer working. On some systems, the "Microsoft Exchange … Continue reading

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