The AAA Service must be configured to enforce 24 hours as the minimum password lifetime.

From Authentication Authorization and Accounting Service Security Requirements Guide

Part of SRG-APP-000173-AAA-000053

Associated with: CCI-000198

SRG-APP-000173-AAA-000053_rule The AAA Service must be configured to enforce 24 hours as the minimum password lifetime.

Vulnerability discussion

Enforcing a minimum password lifetime helps prevent repeated password changes to defeat the password reuse or history enforcement requirement.Restricting this setting limits the user's ability to change their password. Passwords need to be changed at specific policy based intervals; however, if the application allows the user 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

If the AAA Service relies on directory services for user account management this is not applicable and the connected directory services must perform this function. Verify the AAA Service is configured to enforce 24 hours as the minimum password lifetime. When the AAA Service configuration setting is for "1 day", it is required that the length be 24 hours. If the AAA Service is not configured to enforce 24 hours as the minimum password lifetime, this is a finding.

Fix text

Configure the AAA Service to enforce 24 hours as the minimum password lifetime. When the AAA Service configuration setting is for "1 day", it is required that the length be 24 hours.

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