AAA Services must be configured to prohibit password reuse for a minimum of five generations.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-80921	SRG-APP-000165-AAA-000550	SV-95631r1_rule		Medium

Description
Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. To meet password policy requirements, passwords need to be changed at specific policy-based intervals. If the information system or application allows the user to consecutively reuse their password when that password has exceeded its defined lifetime, the end result is a password that is not changed as per policy requirements.

Description

Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. To meet password policy requirements, passwords need to be changed at specific policy-based intervals. If the information system or application allows the user to consecutively reuse their password when that password has exceeded its defined lifetime, the end result is a password that is not changed as per policy requirements.

STIG	Date
Authentication, Authorization, and Accounting Services (AAA) Security Requirements Guide	2018-10-01

Details

Check Text ( C-80659r3_chk )
If AAA Services rely on directory services for user account management, this is not applicable and the connected directory services must perform this function. This requirement is not applicable to service account passwords (e.g. shared secrets, pre-shared keys) or the account of last resort. Where passwords are used, such as temporary or emergency accounts, verify AAA Services are configured to prohibit password reuse for a minimum of five generations. This requirement may be verified by demonstration or configuration review. If AAA Services are not configured to prohibit password reuse for a minimum of five generations, this is a finding.

Check Text ( C-80659r3_chk )

If AAA Services rely on directory services for user account management, this is not applicable and the connected directory services must perform this function. This requirement is not applicable to service account passwords (e.g. shared secrets, pre-shared keys) or the account of last resort.

Where passwords are used, such as temporary or emergency accounts, verify AAA Services are configured to prohibit password reuse for a minimum of five generations. This requirement may be verified by demonstration or configuration review.

If AAA Services are not configured to prohibit password reuse for a minimum of five generations, this is a finding.

Fix Text (F-87777r2_fix)
Configure AAA Services to prohibit password reuse for a minimum of five generations. This requirement is not applicable to service account passwords (e.g. shared secrets, pre-shared keys) or the account of last resort.