The network device must compare internal information system clocks at least every 24 hours with an authoritative time server.

From Network Device Management Security Requirements Guide

Associated with: CCI-001891

SV-69327r1_rule The network device must compare internal information system clocks at least every 24 hours with an authoritative time server.

Vulnerability discussion

Inaccurate time stamps make it more difficult to correlate events and can lead to an inaccurate analysis. Determining the correct time a particular event occurred on a system is critical when conducting forensic analysis and investigating system events. Sources outside of the configured acceptable allowance (drift) may be inaccurate. Additionally, unnecessary synchronization may have an adverse impact on system performance and may indicate malicious activity. Synchronizing internal information system clocks provides uniformity of time stamps for information systems with multiple system clocks and systems connected over a network.

Check content

Check the network device configuration to determine if the device compares internal information system clocks at least every 24 hours with an authoritative time server. If this comparison does not occur at least every 24 hours, this is a finding.

Fix text

Configure the network device to compare internal information system clocks at least every 24 hours with an authoritative time server.

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