The PASS_MAX_DAYS parameter in /etc/login.defs allows an administrator to force passwords to expire once they reach a defined age. It is recommended that the PASS_MAX_DAYS parameter be set to less than or equal to 60 days.
Rationale:
The window of opportunity for an attacker to leverage compromised credentials or successfully compromise credentials via an online brute force attack is limited by the age of the password. Therefore, reducing the maximum age of a password also reduces an attackers window of opportunity.
[password maximum days]
Set the PASS_MAX_DAYS parameter to 90 in /etc/login.defs:
PASS_MAX_DAYS 60
Modify active user parameters to match:
# chage -maxdays 60 <user>
oval:org.secpod.oval:def:65959
oval:org.secpod.oval:def:92276
oval:org.secpod.oval:def:87306
oval:org.secpod.oval:def:85163
SCAP Repo OVAL Definition
2023-08-23