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XCCDF
Cisco IOS XR Router NDM Security Technical Implementation Guide
SRG-APP-000395-NDM-000347
The Cisco router must be configured to authenticate NTP sources using authentication that is cryptographically based.
The Cisco router must be configured to authenticate NTP sources using authentication that is cryptographically based.
An XCCDF Rule
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The Cisco router must be configured to authenticate NTP sources using authentication that is cryptographically based.
Medium Severity
<VulnDiscussion>If Network Time Protocol is not authenticated, an attacker can introduce a rogue NTP server. This rogue server can then be used to send incorrect time information to network devices, which will make log timestamps inaccurate and affect scheduled actions. NTP authentication is used to prevent this tampering by authenticating the time source.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>