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Possible root access via TTY

High
silkeh published GHSA-v524-6wx8-9vfh Sep 27, 2024

Package

pam (solus)

Affected versions

>=1.5.3-27

Patched versions

1.6.1-37

Description

Summary

In some cases, root accounts without a password were allowed to locally login via TTY1-6.

Details

On installations created with the Solus 4.4 ISOs or lower, the root account was created with an empty password. If the root password was not changed, or root logins were disabled entirely, this allowed local logins with the pam package starting from 1.5.3-27. This regression is fixed with pam 1.6.1-37.

Installations based on Solus 4.5, or those with changed root credentials were not affected.

Advice

While the issue is fixed with the pam update. It is recommended to lock the root account.
This can be done using the following terminal command:

sudo passwd -l root

Severity

High

CVE ID

No known CVE

Weaknesses

No CWEs

Credits