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RHEL-09-411015 RHEL 9 user account passwords must have a 180-day maximum password lifetime restriction.

DISA STIG library V2R10
All changes in this version
first version loaded CAT II

Maps to IA-5(1) via CCI-000199, CCI-004066

Title

RHEL 9 user account passwords must have a 180-day maximum password lifetime restriction.

Control

Verify the maximum time period for existing passwords is restricted to 180 days with the following commands: $ sudo awk -F: '$5 > 180 {print $1 " " $5}' /etc/shadow $ sudo awk -F: '$5 <= 0 {print $1 " " $5}' /etc/shadow If any results are returned that are not associated with a system account, this is a finding.

Discussion

Any password, no matter how complex, can eventually be cracked; therefore, passwords need to be changed periodically. If RHEL 9 does not limit the lifetime of passwords and force users to change their passwords, there is the risk that RHEL 9 passwords could be compromised.

Related controls

CCI-000199, CCI-004066

Fix

Configure noncompliant accounts to enforce a 180-day maximum password lifetime restriction. $ sudo passwd -x 180 [user]