Login Loop

[w33ha-zxc]

Hi @konstruktoid,

Executing the hardening procedure deletes the home directories for all the users on the system causing loops at the login window.

To Reproduce - This issue seems to impact VMs created on HyperV, worked fine with Vmware Workstation.

1. Spin up a VM on HyperV with Ubuntu 22.04.
2. Execute the script.
3. Reboot the server.

executing mkhomedir_helper from recovery mode fixes the issue

HyperV Version: 10.0.17763.1 Replicated for both Ubuntu 20.04 LTS and Ubuntu 22.04 LTS OS

[konstruktoid]

Hi again @w33ha-zxc, I got no idea why a Ubuntu VM is different on Hyper-V than on AWS, VirtualBox or Workstation. Did you use an official ISO?

I'll have to find a way to run Hyper-V and then try to debug this.

Can you get some kind of log when the accounts actually gets removed?

[w33ha-zxc]

Hi @konstruktoid,

I was wondering the same.

I indeed downloaded the ISO twice from the official source, checked checksum just to double check.

Does the hardening script generate a log somewhere I can look at ? or else what I could do is re setup the VM, configure the auditd beforehand and then try executing the script for detailed logging on the actions the script performs.

[konstruktoid]

There's no log created by default, but in ubuntu.cfg change VERBOSE to VERBOSE='Y' and run sudo bash -x ubuntu.sh &>logfilename

[w33ha-zxc]

Will try it out over the weekend and keep you posted.

[w33ha-zxc]

Closing this out, the issue was fixed by upgrading Hyper-V patches it seems.

Unable to reconstruct the issue. Will reopen if needed be.