Exchange Hafnium Vulnerability March 2021

Let’s mention the important things first: Please patch you vulnerable Exchange 2013, 2016 and 2019 immediately! The page msxfaq has published an infosite to this vulnerability including the instructions how to fix your Exchange.

Even though we, as Boll Engineering AG, are not associated in any way with the affected product, a lot of our customer reported, that they have vulnerable systems in place and may be affected by this bug. We have been asked if IPS signatures and WAF patches are already implemented. Therefore we decided to post this blog to raise the awareness of this vulnerability once more, even after the broad press has already published a lot of releases regarding this matter.

This blog post regards the following CVE reports:

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Upgrade your FortiMail now!

There seems to be a vulnerarbility in some FortiMail versions, that allow an unauthenticated remote attacker to access the system by requesting a password change. Please refer to the FortiGuard PSIRT article.

The problem here is not only the unauthorized access to the system, but also the change of the password of all configured administrative accounts. Also, the maintainer functionality to reset the administrator password over a serial console of the FortiMail is being disabled from the attacker.

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