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Passwords must be restricted to a 24 hours/1 day minimum lifetime.


Overview

Finding ID Version Rule ID IA Controls Severity
V-71927 RHEL-07-010240 SV-86551r1_rule Medium
Description
Enforcing a minimum password lifetime helps to prevent repeated password changes to defeat the password reuse or history enforcement requirement. If users are allowed to immediately and continually change their password, the password could be repeatedly changed in a short period of time to defeat the organization's policy regarding password reuse.
STIG Date
Red Hat Enterprise Linux 7 Security Technical Implementation Guide 2017-12-14

Details

Check Text ( C-72159r1_chk )
Check whether the minimum time period between password changes for each user account is one day or greater.

# awk -F: '$4 < 1 {print $1}' /etc/shadow

If any results are returned that are not associated with a system account, this is a finding.
Fix Text (F-78279r1_fix)
Configure non-compliant accounts to enforce a 24 hours/1 day minimum password lifetime:

# chage -m 1 [user]