Overview
  1. 03.01: Access Control
  2. 03.02: Awareness and Training
  3. 03.03: Audit and Accountability
  4. 03.04: Configuration Management
  5. 03.05: Identification and Authentication
  6. 03.06: Incident Response
  7. 03.07: Maintenance
  8. 03.08: Media Protection
  9. 03.09: Personnel Security
  10. 03.10: Physical Protection
  11. 03.11: Risk Assessment
  12. 03.12: Security Assessment
  13. 03.13: System and Communications Protection
  14. 03.14: System and Information Integrity

Security Requirements for 03.01.14 Remote Access Routing

Routing remote access through managed access control points enhances explicit, organizational control over such connections, reducing the susceptibility to unauthorized access to organizational systems resulting in the unauthorized disclosure of CUI.

Assessment GuidanceExamine 0/8

How an assessor determines this requirement is met. Source: CMMC Assessment Guide – Level 2, Version 2.13 (NIST SP 800-171 Rev. 2).

Discussion

The OSA can route all remote access through a limited number of remote access control points to reduce the attack surface and simplify network management. This allows for better monitoring and control of the remote connections. This requirement, AC.L2-3.1.14, limits remote access to specific access control points and complements five other requirements dealing with remote access (AC.L2-3.1.12, AC.L23.1.13, AC.L2-3.1.15, IA.L2-3.5.3, and MA.L2-3.7.5):

AC.L2-3.1.12 requires the control of remote access sessions.

AC.L2-3.1.13 requires the use of cryptographic mechanisms when enabling remote sessions.

AC.L2-3.1.15 requires authorization for privileged commands executed during a remote session.

IA.L2-3.5.3 requires multifactor authentication for network access to non-privileged accounts.

Finally, MA.L2-3.7.5 requires the addition of multifactor authentication for remote maintenance sessions.

Examples

  1. Example 1

    You manage systems for a company that processes CUI at multiple locations, and several employees at different locations need to connect to the organization’s networks while working remotely. Because each company location has a direct connection to headquarters, you decide to route all remote access through the headquarters location [a]. All remote traffic is routed through a single location to simplify monitoring [b].

Assessment Methods

Examine
The process of reviewing, inspecting, observing, studying, or analyzing assessment objects (e.g., policies, procedures, plans, system designs, mechanisms) to facilitate understanding, achieve clarification, or obtain evidence.Example: An assessor reads the access control policy and inspects system configuration settings to confirm they match.

Not all of the evidence listed is required to meet this requirement — check the items your organization has collected.

Interview
The process of holding discussions with individuals or groups within an organization to facilitate understanding, achieve clarification, or identify the location of evidence.Example: An assessor asks a system administrator to describe how user accounts are approved, reviewed, and disabled.
  • System or network administrators
  • Personnel with information security responsibilities
Test
The process of exercising assessment objects (e.g., activities, mechanisms) under specified conditions to compare actual behavior with expected behavior.Example: An assessor attempts to sign in with a disabled account to confirm that access is denied.
  • Mechanisms routing all remote accesses through managed network access control points

Potential Assessment Considerations

  • How many managed access control points are implemented [a]?
  • Is all remote access routed through the managed access control points [b]?

Key References

NIST SP 800-171 Rev. 2 3.1.14

Evidence

  1. 03.01.14.a

    Managed access control points are identified and implemented

  1. 03.01.14.b

    Remote access is routed through managed network access control points