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

The validity period for the RRSIGs covering the DS RR for a zones delegated children must be no less than two days and no more than one week.

DISA Rule

SV-215661r561297_rule

Vulnerability Number

V-215661

Group Title

SRG-APP-000214-DNS-000079

Rule Version

WDNS-CM-000001

Severity

CAT II

CCI(s)

• CCI-000366 - The organization implements the security configuration settings.

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.

Right-click on the zone, choose DNSSEC->Properties.

On the ZSK tab, for DS signature validity period (hours), choose more than 48 and less than 168.

Check Contents

Note: This check is Not applicable for Windows 2012 DNS Servers that only host Active Directory integrated zones or for Windows 2012 DNS servers on a Classified network.

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.

View the validity period for the DS Resource Record.

If the validity period for the DS Resource Record for the child domain is less than two days (48 hours) or more than one week (168 hours), this is a finding.

Vulnerability Number

V-215661

Documentable

False

Rule Version

WDNS-CM-000001

Severity Override Guidance

Note: This check is Not applicable for Windows 2012 DNS Servers that only host Active Directory integrated zones or for Windows 2012 DNS servers on a Classified network.

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.

View the validity period for the DS Resource Record.

If the validity period for the DS Resource Record for the child domain is less than two days (48 hours) or more than one week (168 hours), this is a finding.

Check Content Reference

M

Target Key

4016

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