The operating system must synchronize internal information system clocks to the authoritative time source when the time difference is greater than one second.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-203712	SRG-OS-000356-GPOS-00144	SV-203712r982209_rule	CCI-004926	medium
Description
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. Synchronizing internal information system clocks provides uniformity of time stamps for information systems with multiple system clocks and systems connected over a network. Organizations should consider setting time periods for different types of systems (e.g., financial, legal, or mission-critical systems). Organizations should also consider endpoints that may not have regular access to the authoritative time server (e.g., mobile, teleworking, and tactical endpoints). This requirement is related to the comparison done every 24 hours in SRG-OS-000355 because a comparison must be done in order to determine the time difference.
STIG			Date
General Purpose Operating System Security Requirements Guide			2024-12-04

Related Frameworks

1 mapping across 3 frameworks

SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

MON-07.1Synchronization With Authoritative Time Source

1.00

DISA STIG Benchmark (XCCDF)3intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)
SCF Secure Traceability Relationship Mapping (STRM)2026.2equal to

NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (6) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-17(9)Disconnect or Disable Access

1.00

DISA STIG Benchmark (XCCDF)3intersects(normalised)
DISA STIG Benchmark (XCCDF)V1R1our copyintersects(normalised)
DISA STIG Benchmark (XCCDF)V1R1intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)

AU-8Time Stamps

1.00

DISA STIG Benchmark (XCCDF)3intersects(normalised)
DISA STIG Benchmark (XCCDF)1our copyintersects(normalised)
DISA STIG Benchmark (XCCDF)1intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)

AU-8(1)Synchronization with Authoritative Time Source

1.00

DISA STIG Benchmark (XCCDF)3intersects(normalised)
DISA STIG Benchmark (XCCDF)3our copyintersects(normalised)
DISA STIG Benchmark (XCCDF)3intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)

CM-6Configuration Settings

1.00

DISA STIG Benchmark (XCCDF)3intersects(normalised)
DISA STIG Benchmark (XCCDF)V3R3our copyintersects(normalised)
DISA STIG Benchmark (XCCDF)V3R3intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)

SC-45System Time Synchronization

1.00

DISA STIG Benchmark (XCCDF)3intersects(normalised)
DISA STIG Benchmark (XCCDF)1our copyintersects(normalised)
DISA STIG Benchmark (XCCDF)1intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)

SC-45(1)Synchronization with Authoritative Time Source

1.00

DISA STIG Benchmark (XCCDF)3intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)

CCI1 mapping

CCI-004926

1.00

DISA STIG Benchmark (XCCDF)3intersects(normalised)

Details

Check Text (C-203712r982209_chk)

Verify the operating system synchronizes internal information system clocks to the authoritative time source when the time difference is greater than one second. If it does not, this is a finding.

Fix Text (F-3837r375144_fix)

Configure the operating system to synchronize internal information system clocks to the authoritative time source when the time difference is greater than the organization-defined time period.