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Users must not be able to change passwords more than once every 24 hours.


Overview

Finding ID Version Rule ID IA Controls Severity
V-239498 VROM-SL-000380 SV-239498r661945_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, then the password could be repeatedly changed in a short period of time to defeat the organization's policy regarding password reuse.
STIG Date
VMware vRealize Operations Manager 6.x SLES Security Technical Implementation Guide 2021-07-01

Details

Check Text ( C-42731r661943_chk )
Check the minimum time period between password changes for each user account is "1" day.

# cat /etc/shadow | cut -d ':' -f1,4 | grep -v 1 | grep -v ":$"

If any results are returned, this is a finding.
Fix Text (F-42690r661944_fix)
Change the minimum time period between password changes for each [USER] account to "1" day. The command in the check text will give you a list of users that need to be updated to be in compliance.

# passwd -n 1 [USER]