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MNT-06: Authorized Maintenance Personnel

MNT 9 — Critical Protect

Mechanisms exist to maintain a current list of authorized maintenance organizations or personnel.

Control Question: Does the organization maintain a current list of authorized maintenance organizations or personnel?

General (29)
Framework Mapping Values
GovRAMP Low MA-05
GovRAMP Low+ MA-05
GovRAMP Moderate MA-05
GovRAMP High MA-05
MITRE ATT&CK 10 T1606
NIST 800-53 R4 MA-5
NIST 800-53 R4 (low) MA-5
NIST 800-53 R4 (moderate) MA-5
NIST 800-53 R4 (high) MA-5
NIST 800-53 R5 (source) MA-5
NIST 800-53B R5 (low) (source) MA-5
NIST 800-53B R5 (moderate) (source) MA-5
NIST 800-53B R5 (high) (source) MA-5
NIST 800-82 R3 LOW OT Overlay MA-5
NIST 800-82 R3 MODERATE OT Overlay MA-5
NIST 800-82 R3 HIGH OT Overlay MA-5
NIST 800-160 3.4.13
NIST 800-161 R1 MA-5
NIST 800-161 R1 C-SCRM Baseline MA-5
NIST 800-161 R1 Level 2 MA-5
NIST 800-161 R1 Level 3 MA-5
NIST 800-171 R2 (source) 3.7.6
NIST 800-171A (source) 3.7.6
NIST 800-171 R3 (source) 03.07.06.a 03.07.06.b 03.07.06.c 03.07.06.d
NIST 800-171A R3 (source) A.03.07.06.a A.03.07.06.b A.03.07.06.c A.03.07.06.d[01] A.03.07.06.d[02]
SCF CORE Mergers, Acquisitions & Divestitures (MA&D) MNT-06
SCF CORE ESP Level 1 Foundational MNT-06
SCF CORE ESP Level 2 Critical Infrastructure MNT-06
SCF CORE ESP Level 3 Advanced Threats MNT-06
US (21)
EMEA (2)
Framework Mapping Values
EMEA Israel CDMO 1.0 12.7
EMEA Saudi Arabia OTCC-1 2022 2-13-1-7
APAC (1)
Framework Mapping Values
APAC Australia ISM June 2024 ISM-0305 ISM-0307
Americas (1)
Framework Mapping Values
Americas Canada ITSP-10-171 03.07.06.A 03.07.06.B 03.07.06.C 03.07.06.D

Capability Maturity Model

Level 0 — Not Performed

There is no evidence of a capability to maintain a current list of authorized maintenance organizations or personnel.

Level 1 — Performed Informally

Maintenance (MNT) efforts are ad hoc and inconsistent. CMM Level 1 control maturity would reasonably expect all, or at least most, the following criteria to exist:

  • IT personnel use an informal process to implement secure and timely technology asset-specific maintenance operations, including preventative and reactive maintenance operations.
  • Facilities management uses an informal process to facilitate the secure and timely implementation of non-IT maintenance operations, including preventative and reactive maintenance operations.
  • Maintenance operations are decentralized both in terms of change management and execution.
Level 2 — Planned & Tracked

Maintenance (MNT) efforts are requirements-driven and governed at a local/regional level, but are not consistent across the organization. CMM Level 2 control maturity would reasonably expect all, or at least most, the following criteria to exist: o Identify cybersecurity and data protection controls to appropriately address applicable statutory, regulatory and contractual requirements for technology asset maintenance. o Develop and disseminate formal guidance to facilitate a localized/regionalized process to implement secure and timely technology asset-specific maintenance operations, including preventative and reactionary maintenance operations.

  • Technology asset maintenance is decentralized (e.g., a localized/regionalized function) and uses non-standardized methods to implement secure, resilient and compliant practices.
  • IT/cybersecurity personnel:
  • Maintenance controls are primarily administrative in nature (e.g., policies & standards) to manage change control processes associated with maintenance operations.
  • Asset custodians develop and maintain formalized procedures to conduct controlled and timely maintenance activities throughout the lifecycle of the system, application or service.
  • Maintenance operations may be centralized for certain locations (e.g., datacenters) and decentralized for other locations, both in terms of change management and execution.
  • Facilities management uses a localized/regionalized process to facilitate the secure and timely implementation of non-IT maintenance operations, including preventative and reactionary maintenance operations.
  • Administrative processes maintain a current list of authorized maintenance organizations or personnel.
  • Administrative processes ensure the risks associated with maintenance personnel who do not have appropriate access authorizations, clearances or formal access approvals are appropriately mitigated.
Level 3 — Well Defined

Maintenance (MNT) efforts are standardized across the organization and centrally managed, where technically feasible, to ensure consistency. CMM Level 3 control maturity would reasonably expect all, or at least most, the following criteria to exist:

  • IT/cybersecurity personnel develop and disseminate formal practices to implement enterprise-wide capability to conduct secure and timely technology asset-specific maintenance operations, including preventative and reactionary maintenance operations.
  • Technology asset-related maintenance operations are centralized in terms of change management and governance. Local/regional practices fall under the broader enterprise-wide technology asset maintenance program.
  • Facilities management uses an enterprise-wide process to facilitate the secure and timely implementation of non-IT maintenance operations, including preventative and reactionary maintenance operations. Local/regional practices fall under the broader enterprise-wide facilities management program.
  • A Change Control Board (CCB), or similar function, centrally manages the process of IT and non-IT maintenance operations to reduce the chance of business interruptions from maintenance operations.
  • Administrative processes maintain a current list of authorized maintenance organizations or personnel.
  • Administrative processes ensure the risks associated with maintenance personnel who do not have appropriate access authorizations, clearances or formal access approvals are appropriately mitigated.
Level 4 — Quantitatively Controlled

Maintenance (MNT) efforts are metrics driven and provide sufficient management insight (based on a quantitative understanding of process capabilities) to predict optimal performance, ensure continued operations and identify areas for improvement. In addition to CMM Level 3 criteria, CMM Level 4 control maturity would reasonably expect all, or at least most, the following criteria to exist:

  • Metrics reporting includes quantitative analysis of Key Performance Indicators (KPIs).
  • Metrics reporting includes quantitative analysis of Key Risk Indicators (KRIs).
  • Scope of metrics, KPIs and KRIs covers organization-wide cybersecurity and data protection controls, including functions performed by third-parties.
  • Organizational leadership maintains a formal process to objectively review and respond to metrics, KPIs and KRIs (e.g., monthly or quarterly review).
  • Based on metrics analysis, process improvement recommendations are submitted for review and are handled in accordance with change control processes.
  • Both business and technical stakeholders are involved in reviewing and approving proposed changes.
Level 5 — Continuously Improving

See C|P-CMM4. There are no defined C|P-CMM5 criteria, since it is reasonable to assume a continuously-improving process is not necessary to maintain a current list of authorized maintenance organizations or personnel.

Assessment Objectives

  1. MNT-06_A01 a process for maintenance personnel authorization is established.
  2. MNT-06_A02 a list of authorized maintenance organizations or personnel is maintained.
  3. MNT-06_A03 non-escorted personnel who perform maintenance on the system possess the required access authorizations.

Technology Recommendations

Micro/Small

  • Role Based Access Control (RBAC)

Small

  • Role Based Access Control (RBAC)

Medium

  • Role Based Access Control (RBAC)
  • Separation of Duties (SoD)

Large

  • Role Based Access Control (RBAC)
  • Separation of Duties (SoD)

Enterprise

  • Role Based Access Control (RBAC)
  • Separation of Duties (SoD)

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