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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for September 8th, 2023

At last: WireGuard VPN with FRITZ! | FRITZ!Box 7490 | AVM International

Posted by jpluimers on 2023/09/08

Early spring 2023 I posted Reminder to self: check if FritzOS 7.50 has become available for Fritz!Box 7490 because it would (likely partially) introduce WireGuard support as I knew it had been available for other Fritz!Box devices since december 2022: [Wayback/Archive] Fritzbox: AVM startet die Verteilung von FritzOS 7.50 | heise online

Das Betriebssystem FritzOS 7.50 für Fritzbox-Router ist fertig. Mit dabei sind das Wireguard-VPN und Verbesserungen im Smart-Home-Funktionsumfang.

Finally, early september 2023 my Fritz!Box 7490 devices updated from firmware version 7.29 to 7.57 so apparently it took AVM quite a while to test and stabilise the new features on Fritz!Box 7490.

The final push for 7.57 might actually be a security issue in prior versions that already looks like being exploited according to [Wayback/Archive] AVM: Fritzbox-Firmware 7.57 und 7.31 stopfen Sicherheitsleck | heise online

Fritzbox-Update: Bereits angegriffene Sicherheitslücke wahrscheinlich

In Internetforen finden sich Hinweise darauf, dass die mit dem Update geschlossene Sicherheitslücke bereits angegriffen wird. Den Gerüchten zufolge können Angreifer Zugriff durch den HTTPS-Port 443 erlangen und hätten dann Zugangsdaten zur Fritzbox sowie PPP-Zugangsdaten verändert. Dadurch sei kein Internetzugang mehr möglich, und auch der Zugriff auf die Fritzbox werde verhindert. Einzig ein Werksreset helfe dann, um wieder Zugriff zu erlangen.

The odd thing of the upgrade logs is that the fiber connected 7490 mentioning a DSL settings reset, but the DSL connected 7490 didn’t:

Read the rest of this entry »

Posted in Ethernet, Fritz!, Fritz!Box, FritzOS/Fritz!OS, Hardware, Network-and-equipment, Power User | Leave a Comment »

Windows 10: whitelisting domains so updates still work

Posted by jpluimers on 2023/09/08

The internet access for my mentally retarded brother is fully based on whitelists.

It’s a simple reasoning: his mental abilities is basically a fixed box that does not grow. If he gains one part, he loses on another part.

This makes his risks assessments low and unpredictable at best, especially on the rapidly changing internet, hence whitelisting at the router level.

Whitelisting also implicates I need to update the ever changing list of domains that Windows 10 uses to keep newer versions up-to-date.

If you don’t, then you get an error [Wayback] 0xc1900223 while searching for or a applying updates. The description of that error isn’t accurate; what it actually means is that your computer cannot connect to one or more of the many update locations.

These links should help finding the ones for newer Windows versions (at the time of writing, there was no documentation for Windows 10 21H1 or newer):

Maybe one day someone makes an overview of these in one big worksheet to easily spot the differences. Until then it is a trial and error process every 6 months or so.

Related: [Archive.is] Jeroen Wiert Pluimers on Twitter: “Anyone knows when the 21H1 update of these instructions will be available?  Need to update the site of my mentally retarded brother. Maybe @shanselman or @JenMsft can help me get in touch with the right people for this?”

–jeroen

Posted in Power User, Windows, Windows 10 | Leave a Comment »