Stuck on 2FA auth when login on Umbrel 0.4.10

Support and Troubleshooting
1

Today I updated Umbrel to latest version 0.4.10 and after that I activated 2FA for Umbrel login.

I am using Yubico authenticator.

Activation went well but after logging out and trying to login again nothing happens after I input the 2FA numbers from the authenticator app. If I reload the page I get back to the input password page for Umbrel then back to 2FA auth and then nothing happens after inputting the new 2FA numbers.

I have restarted Umbrel and the also updated and restarted the Ubuntu 18.04 server its running on, no change.

Any suggestions for a fix or how to disable 2FA again?

Thanks

1 Like
2

Hey flowerpot28, sorry to hear that you’re having issues with the 2FA. I’ve seen this happen once before, and it was actually an issue with the browser:

Alternatively, if you really just want to kill 2fa and start over, if you can ssh in, this command will delete 2fa (it deletes a otpURI parameter in user.json which stores your 2fa):
json_file=“/home/umbrel/umbrel/db/user.json” && contents=“$(jq ‘del(.otpUri)’ ${json_file})” && echo “${contents}” > ${json_file}

1 Like
3

Thank for the quick help @jonsyu!

The chrome trick worked like a charm. I am running Edge and that is also a chromium browser so I guess its an issue with chrome.

Thanks.

4

json_file="/home/umbrel/umbrel/db/user.json" && contents="$(jq ‘del(.otpUri)’ ${json_file})" && echo “${contents}” > ${json_file}

i am getting this error can someone correct this
-bash: command substitution: line 17: syntax error near unexpected token (' -bash: command substitution: line 17: jq ‘del(.otpUri)’ ${json_file})"’

5

@BaleNordicWinter Can you please try this command instead (it fixes a comma in the previous command):

json_file="/home/umbrel/umbrel/db/user.json" && contents="$(jq 'del(.otpUri)' ${json_file})" && echo "${contents}" > ${json_file}

2 Likes
6

I noticed with version 0.4.12 this issue has been resolved, for me at least. No need to move to first digit anymore. Thanks Umbrel team!

7

Really cool, lost my authenticator. It works very fine big THX to you !

1 Like
8

My 2FA broke after an unexpected power outage/hard shutdown and this saved the day - thank you!

9

Hi!,
My umbrel will not 2FA. I would like to SSH and delete the @FA usig the JSON command. However. How do I log into the PI using SSH. Total Noob, Sorry. Thanks in advance for your help.

10

I figured SSH out now im getting this response
json_file="/home/umbrel/umbrel/db/user.json" && contents="$(jq ‘del(.otpUri)’ ${json_file})" && echo “${contents}” > ${json_file}: permission denied

11

I am getting an error “permission denied” when I try this command. Please help. locked out of my Umbrel.

12

Can you please try:

json_file="/home/umbrel/umbrel/db/user.json" && contents="$(jq 'del(.otpUri)' ${json_file})" && echo "${contents}" | sudo tee ${json_file}
13

Thanks for the response. I was able to research and find out i needed to use a ssh command that gave me permission; sudo. This allowed me to delete to 2fa script! Works great now!

14

jonsyu- I’m very new but have this problem. Can you tell me what ‘ssh in’ means? Thanks in advance!

15

hey @nelson157 if you’re still having any issue you can reference steps under “How to SSH” in the Official FAQ here

Steps for v5+ are also there under “Lost Two-Factor Authentication (2FA) Access”

16

2FA problem still occurs using Chrome v117.0.5938.132 and Umbrel v0.5.4. Click first number plus Enter button as a workaround is still good thankfully. Any new insights on how to resolve this permanently?