STIGQter: STIG Summary: Microsoft Windows 2012 Server Domain Name System Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 23 Apr 2021:

The Windows 2012 DNS Server must use DNS Notify to prevent denial of service through increase in workload.

DISA Rule

SV-215633r561297_rule

Vulnerability Number

V-215633

Group Title

SRG-APP-000247-DNS-000036

Rule Version

WDNS-SC-000027

Severity

CAT II

CCI(s)

• CCI-001095 - The information system manages excess capacity, bandwidth, or other redundancy to limit the effects of information flooding types of denial of service attacks.

Weight

10

Fix Recommendation

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

Press Windows Key + R, execute dnsmgmt.msc.

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

From the expanded list, click to select the zone.

In the list of hosts, review the Name Server (NS) records. Determine if any of the hosts listed as NS records are non-AD-integrated servers.

If the DNS server only hosts AD-integrated zones and there are not any non-AD-integrated DNS servers acting as secondary DNS servers for the zones, this check is Not Applicable.

For a non-AD-integrated DNS server, Log on to the DNS server using the Domain Admin or Enterprise Admin account or Local Administrator account.

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.

From the displayed context menu, click the “Properties” option.

On the opened zone's properties box, go to the “Zone Transfers” tab.

On the displayed interface, verify if the "Allow zone transfers" check box is selected.

If the "Allow zone transfers" check box is selected, click on the “Notify” button and enable Notify to the non-AD-integrated DNS servers.

Check Contents

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

Press Windows Key + R, execute dnsmgmt.msc.

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

From the expanded list, click to select the zone.

In the list of hosts, review the Name Server (NS) records. Determine if any of the hosts listed as NS records are non-AD-integrated servers.

If the DNS server only hosts AD-integrated zones and there are not any non-AD-integrated DNS servers acting as secondary DNS servers for the zones, this check is not applicable.

For a non-AD-integrated DNS server, right click on the Forward Lookup zone and select “Properties”.
On the opened zone's properties box, go to the “Zone Transfers” tab.

On the displayed interface, verify if the "Allow zone transfers" check box is selected.

If the "Allow zone transfers" check box is selected, click on the “Notify” button and verify “Automatically notify with Servers” is listed on the “Name Servers” tab is selected.

If the “Notify” button is not enabled for non-AD-integrated DNS servers, this is a finding.

Vulnerability Number

V-215633

Documentable

False

Rule Version

WDNS-SC-000027

Severity Override Guidance

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

Press Windows Key + R, execute dnsmgmt.msc.

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

From the expanded list, click to select the zone.

In the list of hosts, review the Name Server (NS) records. Determine if any of the hosts listed as NS records are non-AD-integrated servers.

If the DNS server only hosts AD-integrated zones and there are not any non-AD-integrated DNS servers acting as secondary DNS servers for the zones, this check is not applicable.

For a non-AD-integrated DNS server, right click on the Forward Lookup zone and select “Properties”.
On the opened zone's properties box, go to the “Zone Transfers” tab.

On the displayed interface, verify if the "Allow zone transfers" check box is selected.

If the "Allow zone transfers" check box is selected, click on the “Notify” button and verify “Automatically notify with Servers” is listed on the “Name Servers” tab is selected.

If the “Notify” button is not enabled for non-AD-integrated DNS servers, this is a finding.

Check Content Reference

M

Target Key

4016

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