two factor login authenticator code fails successfully

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paul 11 posts 101 karma points

Dec 02, 2022 @ 01:23

0

Two Factor Login Authenticator Code Fails Successfully

Dear all,

This issue is about two-factor authentication for members on a clean site.

Umbraco.Cms 10.3.2 GoogleAuthenticator 3.0.0 Clean install on Ubuntu, NGINX, dotnet sdk 6.0.301, docker 20.10.21, latest azure-sql-edge image (tnx Sebastiaan Janssen!)

I'm using the "New partial view macro from snippets". My goal is to get the Two-factor Authentication to work (for learning purposes). The basic Member Registration and Login is also from a Umbraco Snippet

All is working well! As a member using the site i can: - create an account, - Log in and out without 2fa, - Update my account to use 2fa, - Log in and out using 2fa!

But when i log in with 2fa after i enter the code from Google Authenticator it says "invalid code" because:

<div asp-validation-summary="All" class="text-danger"></div>

(line 29 from the login snippet) even though the login status (a partial view snippet) says "welcome member!"! The login still asks for the correct authentication code but when i input anything i get a 404 (probably because the UmbTwoFactorLoginController does not want me to redirect back to a Login view since it knows i have logged in!). When i return to my homepage all looks well: i am logged in, the Login view is not present in the navigation anymore and it says "welcome member!". I get no errors in the DevTools (chrome and firefox) and the log files are also not indicating a problem (unless i enter a code again, then i get the 404 and the log says: PostVerify2FACode :: No verified member found, returning 404 ,,, which is incorrect)

Sumarry: I do log in with 2fa even though it says im logged in successfully it says the 2fa code is incorrect (see picture...)

I think i could fix it in the "UmbTwoFactorLoginController" but i cannot find it. Im working "remote (ssh)" so refractor tools are not working in vs code. It is already compiled to a dll i think though appsettings.json Mode = development.

I hope i've made my issue clear, it's my first time on this forum!

Kind regards, Paul

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Darren McGrath 1 post 21 karma points

Feb 10, 2023 @ 17:41
0
It is because it is expecting a return url to be sent to it.

Add on to the UmbracoForm call the return url e.g.
```
@using (Html.BeginUmbracoForm<UmbTwoFactorLoginController>(nameof(UmbTwoFactorLoginController.Verify2FACode),  new { returnUrl = loginModel.RedirectUrl }))
```
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paul 11 posts 101 karma points

Feb 10, 2023 @ 22:00
100
Dear Darren,

Thanks for your reply!

You are right, this is how i fixed it a few months ago:
```
@if (profileModel != null) {
   if (success) {
      profileModel.RedirectUrl = "/";
```
if put that in front of everything else that came with the QR Registration Macro snippet.

I think it would be awesome if the snippets would work right out of the box! With a lot of explanatory comments to help beginners.

Thanks again for your input, i should have posted my fix before, sorry.

Kind regards, Paul
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Two Factor Login Authenticator Code Fails Successfully