Issue: Authentication failure if Entra username and local username differ in upper and lower case #530
Description
Is there an existing issue for this?
- I have searched the existing issues and found none that matched mine
Describe the issue
Login fails with "Authentication failure" if e.g. the username in Entra contains uppercase letters but I'm trying to log in with the username in lowercase.
The log shows
Sep 12 12:14:33 ubuntu login[215574]: pam_unix(login:account): could not identify user (from getpwnam([email protected]))
Sep 12 12:14:33 ubuntu login[215574]: Authentication failure
Steps to reproduce
- Log in with a username which differs in upper- or lowercase from the username in Entra. For example, let's say the username in Entra is
[email protected]and you try to log in with:sudo login [email protected] - Complete the device authentication
- Set a password
- Observe that login fails with
Authentication failure
System information and logs
authd version
authd 0.3.4~ppa3
authd-msentraid broker version
name: authd-msentraid
summary: MS EntraID Broker for authd
publisher: --
store-url: https://snapcraft.io/authd-msentraid
license: GPL-3.0
description: |
Broker that enables OIDC authentication with MS EntraID group management
for authd.
services:
authd-msentraid: simple, enabled, active
refresh-date: today at 12:03 CEST
channels:
0.x/stable: 0.1 2024-08-23 (33) 17MB -
0.x/candidate: ^
0.x/beta: ^
0.x/edge: 0.1 2024-09-10 (44) 17MB -
installed: main~2182c5f4 (x1) 17MB -
gnome-shell version
gnome-shell:
Installed: 46.3.1-1ubuntu1~24.04.1authd1
Candidate: 46.3.1-1ubuntu1~24.04.1authd1
Version table:
*** 46.3.1-1ubuntu1~24.04.1authd1 500
500 https://ppa.launchpadcontent.net/ubuntu-enterprise-desktop/authd-edge/ubuntu noble/main amd64 Packages
100 /var/lib/dpkg/status
46.3.1-1ubuntu1~24.04.1 500
500 https://ppa.launchpadcontent.net/ubuntu-enterprise-desktop/authd/ubuntu noble/main amd64 Packages
46.0-0ubuntu6~24.04.4 500
500 http://de.archive.ubuntu.com/ubuntu noble-updates/main amd64 Packages
46.0-0ubuntu6~24.04.3 500
500 http://security.ubuntu.com/ubuntu noble-security/main amd64 Packages
46.0-0ubuntu5 500
500 http://de.archive.ubuntu.com/ubuntu noble/main amd64 Packages
Distribution
Distributor ID: Ubuntu
Description: Ubuntu 24.04.1 LTS
Release: 24.04
Codename: noble
Logs
[666773.117338] ubuntu authd[215459]: DEBUG User "<username in lowercase>" is unknown
[666794.091449] ubuntu authd[215459]: 2024/09/12 12:14:33 WARN rpc error: code = NotFound desc =
[666794.095322] ubuntu authd[215459]: 2024/09/12 12:14:33 WARN rpc error: code = NotFound desc =
[666794.095322] ubuntu authd[215459]: 2024/09/12 12:14:33 WARN rpc error: code = NotFound desc =
authd broker configuration
/etc/authd/brokers.d/authd-msentraid.conf
[authd]
name = Microsoft Entra ID
brand_icon = /snap/authd-msentraid/current/broker_icon.png
dbus_name = com.ubuntu.authd.MSEntraID
dbus_object = /com/ubuntu/authd/MSEntraID
authd-msentraid configuration
[oidc]
issuer = https://login.microsoftonline.com/<UUID redacted>/v2.0
client_id = <UUID redacted>
#client_id = <UUID redacted>
Double check your logs
- I have redacted any sensitive information from the logs