Check: WN19-DC-000310
Microsoft Windows Server 2019 STIG:
WN19-DC-000310
(in versions v3 r2 through v1 r1)
Title
Windows Server 2019 Active Directory user accounts, including administrators, must be configured to require the use of a Common Access Card (CAC), Personal Identity Verification (PIV)-compliant hardware token, or Alternate Logon Token (ALT) for user authentication. (Cat II impact)
Discussion
Smart cards such as the CAC support a two-factor authentication technique. This provides a higher level of trust in the asserted identity than use of the username and password for authentication. Satisfies: SRG-OS-000105-GPOS-00052, SRG-OS-000106-GPOS-00053, SRG-OS-000107-GPOS-00054, SRG-OS-000108-GPOS-00055, SRG-OS-000375-GPOS-00160
Check Content
This applies to domain controllers. It is NA for other systems. Open "PowerShell". Enter the following: "Get-ADUser -Filter {(Enabled -eq $True) -and (SmartcardLogonRequired -eq $False)} | FT Name" ("DistinguishedName" may be substituted for "Name" for more detailed output.) If any user accounts, including administrators, are listed, this is a finding. Alternately: To view sample accounts in "Active Directory Users and Computers" (available from various menus or run "dsa.msc"): Select the Organizational Unit (OU) where the user accounts are located. (By default, this is the Users node; however, accounts may be under other organization-defined OUs.) Right-click the sample user account and select "Properties". Select the "Account" tab. If any user accounts, including administrators, do not have "Smart card is required for interactive logon" checked in the "Account Options" area, this is a finding.
Fix Text
Configure all user accounts, including administrator accounts, in Active Directory to enable the option "Smart card is required for interactive logon". Run "Active Directory Users and Computers" (available from various menus or run "dsa.msc"): Select the OU where the user accounts are located. (By default this is the Users node; however, accounts may be under other organization-defined OUs.) Right-click the user account and select "Properties". Select the "Account" tab. Check "Smart card is required for interactive logon" in the "Account Options" area.
Additional Identifiers
Rule ID: SV-205701r1016455_rule
Vulnerability ID: V-205701
Group Title: SRG-OS-000105-GPOS-00052
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-000366 |
Implement the security configuration settings. |
| CCI-000765 |
Implement multifactor authentication for access to privileged accounts. |
| CCI-000766 |
Implement multifactor authentication for access to non-privileged accounts. |
| CCI-000767 |
The information system implements multifactor authentication for local access to privileged accounts. |
| CCI-000768 |
The information system implements multifactor authentication for local access to non-privileged accounts. |
| CCI-001948 |
The information system implements multifactor authentication for remote access to privileged accounts such that one of the factors is provided by a device separate from the system gaining access. |
Controls
| Number | Title |
|---|---|
| CM-6 |
Configuration Settings |
| IA-2(1) |
Network Access to Privileged Accounts |
| IA-2(2) |
Network Access to Non-privileged Accounts |
| IA-2(3) |
Local Access to Privileged Accounts |
| IA-2(4) |
Local Access to Non-privileged Accounts |
| IA-2(11) |
Remote Access - Separate Device |