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

An XCCDF Rule

Description

<VulnDiscussion>In the case of application DoS attacks, care must be taken when designing the application to ensure it makes the best use of system resources. SQL queries have the potential to consume large amounts of CPU cycles if they are not tuned for optimal performance. Web services containing complex calculations requiring large amounts of time to complete can bog down if too many requests for the service are encountered within a short period of time.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>

ID: SV-259396r945336_rule
Severity: Medium
References: CCI-001095
Updated: 8 months ago

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

Press the Windows key + R and 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 NS records. Determine if any of the hosts listed as NS records are non-AD-integrated servers.

If the DNS server hosts only AD-integrated zones and no non-AD-integrated DNS servers are acting as secondary DNS servers for the zones, this 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, determine if the "Allow zone transfers" check box is selected.

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

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

Description

Remediation - Manual Procedure