The Windows 2012 DNS Server must be configured to only allow zone information that reflects the environment for which it is authoritative, to include IP ranges and IP versions.

An XCCDF Rule

Description

<VulnDiscussion>DNS zone data for which a Windows 2012 DNS server is authoritative should represent the network for which it is responsible. If a Windows 2012 DNS server hosts zone records for other networks or environments, there is the possibility for the records to become invalid or stale or be redundant/conflicting with a DNS server truly authoritative for the other network environment.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>

ID: SV-215638r561297_rule
Severity: Medium
References: CCI-001310
Updated: about 1 year ago

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 which is not part of the environment.

The Windows 2012 DNS Server must be configured to only allow zone information that reflects the environment for which it is authoritative, to include IP ranges and IP versions.

Description

Remediation - Manual Procedure