Title

Amazon Linux 2023 must enforce 24 hours/1 day as the minimum password lifetime. (Cat II impact)

Discussion

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, then the password could be repeatedly changed in a short period of time to defeat the organization's policy regarding password reuse.

Check Content

Verify Amazon Linux 2023 enforces 24 hours as the minimum password lifetime for new user accounts with the following command: $ sudo grep -i pass_min_days /etc/login.defs PASS_MIN_DAYS 1 If the "PASS_MIN_DAYS" parameter value is not "1" or greater, or is commented out, this is a finding.

Fix Text

Configure Amazon Linux 2023 to enforce 24 hours as the minimum password lifetime for new user accounts. Add the following line in "/etc/login.defs" (or modify the line to have the required value): PASS_MIN_DAYS 1

Additional Identifiers

Rule ID: SV-274143r1120417_rule

Vulnerability ID: V-274143

Group Title: SRG-OS-000075-GPOS-00043

Expert Comments

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