Vulnerability Discussion

Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example, registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections.

Check

Verify users are provided with feedback on when account accesses last occurred with the following command:

$ grep pam_lastlog /etc/pam.d/login
session required pam_lastlog.so showfailed

If the line containing "pam_lastlog" is not set to "required", or the "silent" option is present, or the line is commented out, or the line is missing , this is a finding.

Fix

Configure Ubuntu 24.04 LTS to provide users with feedback on when account accesses last occurred by setting the required configuration options in "/etc/pam.d/login".

Add the following line to the top of "/etc/pam.d/login":

session required pam_lastlog.so showfailed