AST-27: Jump Server
Mechanisms exist to conduct remote system administrative functions via a "jump box" or "jump server" that is located in a separate network zone to user workstations.
Control Question: Does the organization conduct remote system administrative functions via a "jump box" or "jump server" that is located in a separate network zone to user workstations?
General (4)
| Framework | Mapping Values |
|---|---|
| NIST 800-171 R3 (source) | 03.01.12.a 03.01.12.c |
| SCF CORE Mergers, Acquisitions & Divestitures (MA&D) | AST-27 |
| SCF CORE ESP Level 2 Critical Infrastructure | AST-27 |
| SCF CORE ESP Level 3 Advanced Threats | AST-27 |
US (1)
| Framework | Mapping Values |
|---|---|
| US CISA CPG 2022 | 2.F |
EMEA (2)
| Framework | Mapping Values |
|---|---|
| EMEA Saudi Arabia CSCC-1 2019 | 2-3-1-4 |
| EMEA Saudi Arabia SACS-002 | TPC-41 |
APAC (2)
| Framework | Mapping Values |
|---|---|
| APAC Australia Essential 8 | ML2-P4 ML3-P4 |
| APAC Australia ISM June 2024 | ISM-1385 ISM-1387 |
Americas (1)
| Framework | Mapping Values |
|---|---|
| Americas Canada ITSP-10-171 | 03.01.12.A 03.01.12.C |
Capability Maturity Model
Level 0 — Not Performed
There is no evidence of a capability to conduct remote system administrative functions via a "jump box" or "jump server" that is located in a separate network zone to user workstations.
Level 1 — Performed Informally
C|P-CMM1 is N/A, since a structured process is required to conduct remote system administrative functions via a "jump box" or "jump server" that is located in a separate network zone to user workstations.
Level 2 — Planned & Tracked
Asset Management (AST) 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:
- Asset management is decentralized (e.g., a localized/regionalized function) and uses non-standardized methods to implement secure, resilient and compliant practices.
- IT/cybersecurity personnel identify cybersecurity and data protection controls that are appropriate to address applicable statutory, regulatory and contractual requirements for asset management.
- Administrative processes and technologies focus on protecting High Value Assets (HVAs), including environments where sensitive/regulated data is stored, transmitted and processed.
- Asset management is formally assigned as an additional duty to existing IT/cybersecurity personnel.
- Technology assets are categorized according to data classification and business criticality.
- Inventories cover technology assets in scope for statutory, regulatory and/ or contractual compliance, which includes both physical and virtual assets.
- Software licensing is tracked as part of IT asset inventories.
- Users are educated on their responsibilities to protect technology assets assigned to them or under their supervision.
- IT/cybersecurity personnel maintain network diagrams to document the flow of sensitive/regulated data across the network.
- sensitive/regulated data environments are configured to require jump boxes to meet contractual obligations and prevent unauthorized access.
Level 3 — Well Defined
Asset Management (AST) 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:
- An IT Asset Management (ITAM) function, or similar function, governs asset management to help ensure compliance with requirements for asset management.
- An ITAM function, or similar function, maintains an inventory of IT assets, covering both physical and virtual assets, as well as centrally managed asset ownership assignments.
- Technology assets and data are categorized according to data classification and business criticality criteria.
- A Cybersecurity Supply Chain Risk Management (C-SCRM) function oversees supply chain risks including the removal and prevention of certain technology services and/ or equipment designated as supply chain threats by a statutory or regulatory body.
- Data/process owners document where sensitive/regulated data is stored, transmitted and processed, generating Data Flow Diagrams (DFDs) and network diagrams to document the flow of data.
- Remote users are configured to use jump boxes as part of a Zero Trust Architecture (ZTA).
- Server environments are configured to require jump boxes for remote maintenance purposes.
Level 4 — Quantitatively Controlled
See C|P-CMM3. There are no defined C|P-CMM4 criteria, since it is reasonable to assume a quantitatively-controlled process is not necessary to conduct remote system administrative functions via a "jump box" or "jump server" that is located in a separate network zone to user workstations.
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 conduct remote system administrative functions via a "jump box" or "jump server" that is located in a separate network zone to user workstations.
Assessment Objectives
- AST-27_A01 a "jump box" or "jump server" is established in secure enclaves that are in a separate network zone to user workstations.
- AST-27_A02 non-console system administrative functions are restricted to connect to secure enclaves via a "jump box" or "jump server" that is located in a separate network zone to user workstations.
Technology Recommendations
Micro/Small
- IT Asset Management (ITAM) program
- Secure Baseline Configurations (SBC)
- Network segmentation
Small
- IT Asset Management (ITAM) program
- Secure Baseline Configurations (SBC)
- Network segmentation
Medium
- IT Asset Management (ITAM) program
- Secure Baseline Configurations (SBC)
- Network segmentation
Large
- IT Asset Management (ITAM) program
- Secure Baseline Configurations (SBC)
- Network segmentation
Enterprise
- IT Asset Management (ITAM) program
- Secure Baseline Configurations (SBC)
- Network segmentation