Bonus Question: Are network time, logging, and synchronization mechanisms standardized across all devices and monitored for drift?
Why This Matters
Accurate time and consistent logs are critical for incident correlation and forensic accuracy. Clock drift can break event sequencing and weaken audit trails.
Maturity
No NTP configuration; logs unsynchronized.
Some devices manually synced; no validation.
Central NTP servers configured; manual drift checks.
Automated synchronization and log timestamp validation.
NTP and log servers monitored for tampering or failures.
End-to-end log integrity validation integrated with SIEM analytics.
How to Level Up
| From → To | Actions |
|—|—|
| 0 → 1 |Enable NTP on all critical devices.|
| 1 → 2 |Use central, authenticated time sources.|
| 2 → 3 |Automate drift detection and alerting.|
| 3 → 4 |Integrate time and log servers with SIEM.|
| 4 → 5 |Implement log-integrity validation and tamper-proof storage. |
Enablers
- People: Infrastructure Admin, SOC Analyst
- Process: Configure → Monitor → Validate
- Technology: NTP, Syslog, SIEM
Evidence
- NTP configuration snapshots
- Log correlation reports
- Drift or sync-failure alerts
KPIs
- Number of systems synchronized to NTP
- Average clock drift across devices
- Percentage of logs correlated by timestamp
Low-Cost / Open-Source Options (MSME)
| Purpose | Tool | Notes |
|—|—|—|
| NTP service | Chrony / ntpd | Authenticated sync |
| Log aggregation | Rsyslog / Fluent Bit | Centralized logging |
| Drift alerting | Prometheus exporter | Metric monitoring |
Common Pitfalls
- Using public NTP without authentication
- Ignoring failed synchronization alerts
- Logs with inconsistent time zones
Compliance Mapping
| Standard | Clauses / Notes | |—|—| | ISO/IEC 27001 | A.8.28 / A.8.29 | | NIST CSF 2.0 | DE.AE / GV.MA | | CERT-In 2022 | Section 17 | | NIRMATA Mapping | IS-Q21B enhances Infrastructure Security with time-sync and log-integrity assurance. |