The Windows DNS Server must only contain zone records that have been validated annually.
An XCCDF Rule
Description
<VulnDiscussion>If zone information has not been validated in more than a year, there is no assurance that it is still valid. If invalid records are in a zone, an adversary could potentially use their existence for improper purposes. A standard operating procedure detailing this process can resolve this requirement.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-259394r961599_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
Create a separate database to maintain record documentation for non-AD-integrated zones.
Develop a procedure to validate annually all zone information on the DNS server against the separately maintained database.
Log on to the DNS server using the Domain Admin or Enterprise Admin account or Local Administrator account.