The Windows DNS Server must be configured to only allow zone information that reflects the environment for which it is authoritative, including IP ranges and IP versions.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-259401	WDNS-22-000073	SV-259401r945348_rule		Medium

Description
DNS zone data for which a Windows DNS Server is authoritative should represent the network for which it is responsible. If a Windows DNS Server hosts zone records for other networks or environments, the records could become invalid or stale or be redundant/conflicting with a DNS server truly authoritative for the other network environment.

STIG	Date
Microsoft Windows Server Domain Name System (DNS) Security Technical Implementation Guide	2024-01-09

Details

Check Text ( C-63140r939906_chk )
Consult with the system administrator to determine the IP ranges for the environment. Log on to the DNS server using the Domain Admin or Enterprise Admin account or Local Administrator account. If not automatically started, initialize the "Server Manager" window by clicking its icon from the bottom left corner of the screen. Once the "Server Manager" window is initialized, from the left pane, click to select the DNS category. From the right pane, under the "SERVERS" section, right-click the DNS server. From the context menu that appears, click "DNS Manager". On the opened DNS Manager snap-in from the left pane, expand the server name and then expand "Forward Lookup Zones". From the expanded list, click to select and then right-click the zone name. Review the zone information and compare it to the IP ranges for the environment. If any zone information is for a different IP range or domain, this is a finding.

Check Text ( C-63140r939906_chk )

Consult with the system administrator to determine the IP ranges for the environment.

Log on to the DNS server using the Domain Admin or Enterprise Admin account or Local Administrator account.

If not automatically started, initialize the "Server Manager" window by clicking its icon from the bottom left corner of the screen.

Once the "Server Manager" window is initialized, from the left pane, click to select the DNS category.

From the right pane, under the "SERVERS" section, right-click the DNS server.

From the context menu that appears, click "DNS Manager".

On the opened DNS Manager snap-in from the left pane, expand the server name and then expand "Forward Lookup Zones".

From the expanded list, click to select and then right-click the zone name.

Review the zone information and compare it to the IP ranges for the environment.

If any zone information is for a different IP range or domain, this is a finding.

Fix Text (F-63048r939907_fix)
Log on to the DNS server using the Domain Admin or Enterprise Admin account or Local Administrator account. If not automatically started, initialize the "Server Manager" window by clicking its icon from the bottom left corner of the screen. Once the "Server Manager" window is initialized, from the left pane, click to select the DNS category. From the right pane, under the "SERVERS" section, right-click the DNS server. From the context menu that appears, click "DNS Manager". On the opened DNS Manager snap-in from the left pane, expand the server name and then expand "Forward Lookup Zones". Remove any zone information that is not part of the environment.

Fix Text (F-63048r939907_fix)

Log on to the DNS server using the Domain Admin or Enterprise Admin account or Local Administrator account.

If not automatically started, initialize the "Server Manager" window by clicking its icon from the bottom left corner of the screen.

Once the "Server Manager" window is initialized, from the left pane, click to select the DNS category.

From the right pane, under the "SERVERS" section, right-click the DNS server.

From the context menu that appears, click "DNS Manager".

On the opened DNS Manager snap-in from the left pane, expand the server name and then expand "Forward Lookup Zones".

Remove any zone information that is not part of the environment.