Deprecation of TLS version 1.0

For most people, it’s been looming about pretty silently over the past few years, but TLS v1.0, the oldest and earliest version of Transport Layer Security is considered deprecated. The Payment Card Industry (PCI) data security standard (DSS) version 3.2 from April 2016 recommends full deprecation by the end of June 2018.

In compliance with these standards, while originating from the payment card industry, widely regarded to as a guiding standard for other industries, Kolab Now has disabled support for TLS v1.0.

Why? What does that mean?

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Announcing Service Windows: Reboot Weekend

As may have already been brought to your attention, some software mitigation is needed for vulnerabilities dubbed “Meltdown” (CVE-2017-5754) and “Spectre” (CVE-2017-5753, CVE-2017-5715).

If I were to summarize the issue with these vulnerabilities then in principle they would, when successfully exploited, allow reading memory that doesn’t belong to the process, the user or even the same operating system instance. In just that way, the Kolab Now infrastructure isn’t impacted.

However, we’re still going to need to patch this out. The only way we can is by updating software and rebooting systems, and this will happen during the weekend of Saturday January 13th and Sunday January 14th.

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Annual SSL Certificate Refresh

This is a reminder that our annual certificate renewal period is coming up soon. Usually, we have our certificates issued some time in December, and certificate issuers allow for a grace period up to some time in January. We’re now in that grace period, so our certificates are going to be renewed and cycled throughout our infrastructure.

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Experimenting with TOTP Two Factor Authentication

We’re currently experimenting with an implementation of TOTP-based 2 factor authentication, allowing our customers to use a second factor.

Until now, Kolab Now required its users to supply a username and a password. This is considered only a single factor, since the username is your email address and thus known to third parties.

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