AST-15.1: Technology Asset Inspections
Mechanisms exist to physically and logically inspect critical technology assets to detect evidence of tampering.
Control Question: Does the organization physically and logically inspect critical technology assets to detect evidence of tampering?
General (23)
| Framework | Mapping Values |
|---|---|
| NIST 800-53 R4 | SA-18(2) |
| NIST 800-53 R5 (source) | SR-10 |
| NIST 800-53B R5 (low) (source) | SR-10 |
| NIST 800-53B R5 (moderate) (source) | SR-10 |
| NIST 800-53B R5 (high) (source) | SR-10 |
| NIST 800-82 R3 LOW OT Overlay | SR-10 |
| NIST 800-82 R3 MODERATE OT Overlay | SR-10 |
| NIST 800-82 R3 HIGH OT Overlay | SR-10 |
| NIST 800-161 R1 | SR-10 |
| NIST 800-161 R1 C-SCRM Baseline | SR-10 |
| NIST 800-161 R1 Flow Down | SR-10 |
| NIST 800-161 R1 Level 2 | SR-10 |
| NIST 800-161 R1 Level 3 | SR-10 |
| PCI DSS 4.0.1 (source) | 9.5.1 9.5.1.2 |
| PCI DSS 4.0.1 SAQ B (source) | 9.5.1 9.5.1.2 |
| PCI DSS 4.0.1 SAQ B-IP (source) | 9.5.1 9.5.1.2 |
| PCI DSS 4.0.1 SAQ C (source) | 9.5.1 9.5.1.2 |
| PCI DSS 4.0.1 SAQ D Merchant (source) | 9.5.1 9.5.1.2 |
| PCI DSS 4.0.1 SAQ D Service Provider (source) | 9.5.1 9.5.1.2 |
| PCI DSS 4.0.1 SAQ P2PE (source) | 9.5.1 9.5.1.2 |
| SCF CORE ESP Level 1 Foundational | AST-15.1 |
| SCF CORE ESP Level 2 Critical Infrastructure | AST-15.1 |
| SCF CORE ESP Level 3 Advanced Threats | AST-15.1 |
US (6)
| Framework | Mapping Values |
|---|---|
| US FedRAMP R5 (source) | SR-10 |
| US FedRAMP R5 (low) (source) | SR-10 |
| US FedRAMP R5 (moderate) (source) | SR-10 |
| US FedRAMP R5 (high) (source) | SR-10 |
| US FedRAMP R5 (LI-SaaS) (source) | SR-10 |
| US IRS 1075 | SR-10 |
Capability Maturity Model
Level 0 — Not Performed
There is no evidence of a capability to physically and logically inspect critical technology assets to detect evidence of tampering.
Level 1 — Performed Informally
Asset Management (AST) efforts are ad hoc and inconsistent. CMM Level 1 control maturity would reasonably expect all, or at least most, the following criteria to exist:
- Asset management is informally assigned as an additional duty to existing IT/cybersecurity personnel.
- Asset inventories are performed in an ad hoc manner.
- Software licensing is tracked as part of IT asset inventories.
- Data process owners maintain limited network diagrams to document the flow of sensitive/regulated data that is specific to their initiative.
- IT personnel work with data/process owners to help ensure secure practices are implemented throughout the System Development Lifecycle (SDLC) for all high-value projects.
- IT personnel should provide a list of dos and do nots for using laptops and mobile devices in high threat countries.
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.
- Security awareness training covers reporting of unauthorized alterations and evidence of tampering.
- Users traveling to high threat countries use tamper-resistant tape to aid in detecting physical tampering and/ or use a specially hardened device besides their normal company issued device.
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.
- Security awareness training covers reporting of unauthorized alterations and evidence of tampering.
- Users traveling to high threat countries use tamper-resistant tape to aid in detecting physical tampering and/ or use a specially hardened device besides their normal company issued device.
Level 4 — Quantitatively Controlled
Asset Management (AST) 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.
- 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
Asset Management (AST) efforts are “world-class” capabilities that leverage predictive analysis (e.g., machine learning, AI, etc.). In addition to CMM Level 4 criteria, CMM Level 5 control maturity would reasonably expect all, or at least most, the following criteria to exist:
- Stakeholders make time-sensitive decisions to support operational efficiency, which may include automated remediation actions.
- Based on predictive analysis, process improvements are implemented according to “continuous improvement” practices that affect process changes.
Assessment Objectives
- AST-15.1_A01 systems or system components that require inspection are defined.
- AST-15.1_A02 the frequency at which to inspect systems or system components is defined.
- AST-15.1_A03 indications of the need for an inspection of systems or system components are defined.
- AST-15.1_A04 systems or system components are inspected to detect tampering.
Technology Recommendations
Micro/Small
- Tamper detection tape
- Indicators of Compromise (IoC)
- File Integrity Monitoring (FIM)
Small
- Tamper detection tape
- Indicators of Compromise (IoC)
- File Integrity Monitoring (FIM)
Medium
- Tamper detection tape
- Indicators of Compromise (IoC)
- File Integrity Monitoring (FIM)
- CimTrak Integrity Suite (https://cimcor.com/cimtrak)
- Netwrix Auditor (https://netrix.com)
- Tripwire Enterprise (https://tripwire.com)
Large
- Tamper detection tape
- Indicators of Compromise (IoC)
- File Integrity Monitoring (FIM)
- CimTrak Integrity Suite (https://cimcor.com/cimtrak)
- Netwrix Auditor (https://netrix.com)
- Tripwire Enterprise (https://tripwire.com)
Enterprise
- Tamper detection tape
- Indicators of Compromise (IoC)
- File Integrity Monitoring (FIM)
- CimTrak Integrity Suite (https://cimcor.com/cimtrak)
- Netwrix Auditor (https://netrix.com)
- Tripwire Enterprise (https://tripwire.com)