SR-9 Tamper Resistance and Detection
High-Level Description
Family: Supply Chain Risk Management (SR) Framework: NIST SP 800-53 Rev 5
Anti-tamper technologies, tools, and techniques provide a level of protection for systems, system components, and services against many threats, including reverse engineering, modification, and substitution. Strong identification combined with tamper resistance and/or tamper detection is essential to protecting systems and components during distribution and when in use.
What to Check
- Verify SR-9 Tamper Resistance and Detection is documented in SSP
- Confirm control is operating effectively
- Review evidence of continuous monitoring for SR-9
How to Test
Step 1: Review Documentation
Examine the System Security Plan (SSP) and related artifacts for SR-9 implementation details. Verify the organization has documented how this control is satisfied.
Step 2: Validate Implementation
# For cloud environments, use cloud-audit-mcp tools
# For on-premises, review system configurations directly
# Example: Check if account management policies exist
grep -r "account.management\|access.control" /etc/security/ 2>/dev/null
Step 3: Test Operating Effectiveness
Verify the control is actively functioning, not just documented. Check logs, configurations, and operational evidence.
Tools
| Tool | Purpose | Usage |
|---|---|---|
| Manual Review | Documentation and interview-based | N/A |
Remediation Guide
Control Statement
Implement a tamper protection program for the system, system component, or system service.
Implementation Guidance
Anti-tamper technologies, tools, and techniques provide a level of protection for systems, system components, and services against many threats, including reverse engineering, modification, and substitution. Strong identification combined with tamper resistance and/or tamper detection is essential to protecting systems and components during distribution and when in use.
Risk Assessment
| Finding | Severity | Impact |
|---|---|---|
| SR-9 Tamper Resistance and Detection not implemented | Medium | Supply Chain Risk Management |
| SR-9 partially implemented | Low | Incomplete Supply Chain Risk Management |
CWE Categories
| CWE ID | Title |
|---|---|
| N/A | No direct CWE mapping |
References
- NIST SP 800-53 Rev 5 - SR-9
- NIST SP 800-53A Rev 5 (Assessment Procedures)
- NIST SP 800-53 Rev 5 Full Catalog
Checklist
- Control documented in SSP
- Implementation evidence collected
- Operating effectiveness validated
- Continuous monitoring in place
- Related controls (PE-3, PM-30, SA-15, SI-4, SI-7) reviewed