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XCCDF
Cisco ASA NDM Security Technical Implementation Guide
SRG-APP-000395-NDM-000347
The Cisco ASA must be configured to authenticate Network Time Protocol sources using authentication that is cryptographically based.
The Cisco ASA must be configured to authenticate Network Time Protocol sources using authentication that is cryptographically based.
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The Cisco ASA must be configured to authenticate Network Time Protocol 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>