The SUSE operating system must employ user passwords with a maximum lifetime of 60 days.

From SLES 12 Security Technical Implementation Guide

Associated with: CCI-000199

SV-91813r1_rule The SUSE operating system must employ user passwords with a maximum lifetime of 60 days.

Vulnerability discussion

Any password, no matter how complex, can eventually be cracked. Therefore, passwords need to be changed periodically. If the SUSE operating system does not limit the lifetime of passwords and force users to change their passwords, there is the risk that the SUSE operating system passwords could be compromised.

Check content

Verify that the SUSE operating system enforces a maximum user password age of "60" days or less. Check that the SUSE operating system enforces "60" days or less as the maximum user password age with the following command: # sudo cat /etc/shadow | cut -d':' -f1,5 | egrep -v "([0|60])" | grep -v ":$" If any results are returned, this is a finding.

Fix text

Configure the SUSE operating system to enforce a maximum password age of each [USER] account to "60" days. The command in the check text will give a list of users that need to be updated to be in compliance: # sudo passwd -x 60 [USER] The DoD requirement is "60" days.

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