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XCCDF
Microsoft Exchange 2019 Edge Server Security Technical Implementation Guide
SRG-APP-000424
The Exchange Edge server must point to a trusted list of DNS servers for external and internal resolution.
The Exchange Edge server must point to a trusted list of DNS servers for external and internal resolution.
An XCCDF Rule
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The Exchange Edge server must point to a trusted list of DNS servers for external and internal resolution.
Medium Severity
<VulnDiscussion>To mitigate the risk of possible erroneous queries that may have been coopted by bad actors, the Exchange Edge server must use DNS servers that utilize DNSSEC to resolve external hosts and internal hosts before routing messages to the appropriate destination.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>