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V-248695

CAT II (Medium)

OL 8 passwords for new users or password changes must have a 24 hours/one day minimum password lifetime restriction in "/etc/login.defs".

Rule ID

SV-248695r1015055_rule

STIG

Oracle Linux 8 Security Technical Implementation Guide

Version

V2R8

CCIs

CCI-004066 CCI-000198

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

Check Content

Verify the operating system enforces 24 hours/one day as the minimum password lifetime for new user accounts. 
 
Check for the value of "PASS_MIN_DAYS" in "/etc/login.defs" 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 OL 8 to enforce 24 hours/one day as the minimum password lifetime. 
 
Add the following line in "/etc/login.defs" (or modify the line to have the required value): 
 
PASS_MIN_DAYS 1