Shared user accounts must not be permitted on the system.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-226039	WN12-00-000012	SV-226039r794694_rule		Medium

Description
Shared accounts (accounts where two or more people log in with the same user identification) do not provide adequate identification and authentication. There is no way to provide for nonrepudiation or individual accountability for system access and resource usage.

STIG	Date
Microsoft Windows Server 2012/2012 R2 Domain Controller Security Technical Implementation Guide	2022-03-01

Details

Check Text ( C-27741r475440_chk )
Determine whether any shared accounts exist. If no shared accounts exist, this is NA. Shared accounts, such as required by an application, may be approved by the organization. This must be documented with the ISSO. Documentation must include the reason for the account, who has access to the account, and how the risk of using the shared account is mitigated to include monitoring account activity. If unapproved shared accounts exist, this is a finding.

Check Text ( C-27741r475440_chk )

Determine whether any shared accounts exist. If no shared accounts exist, this is NA.

Shared accounts, such as required by an application, may be approved by the organization. This must be documented with the ISSO. Documentation must include the reason for the account, who has access to the account, and how the risk of using the shared account is mitigated to include monitoring account activity.

If unapproved shared accounts exist, this is a finding.

Fix Text (F-27729r794693_fix)
Remove unapproved shared accounts from the system. Document required shared accounts with the ISSO. Documentation must include the reason for the account, who has access to the account, and how the risk of using the shared account is mitigated, to include monitoring account activity.