SI-13(5) Failover Capability
Enhancement of: SI-13
High-Level Description
Family: System and Information Integrity (SI) Framework: NIST SP 800-53 Rev 5
Failover refers to the automatic switchover to an alternate system upon the failure of the primary system. Failover capability includes incorporating mirrored system operations at alternate processing sites or periodic data mirroring at regular intervals defined by the recovery time periods of organizations.
What to Check
- Verify SI-13(5) Failover Capability is documented in SSP
- Confirm control is operating effectively
- Review evidence of continuous monitoring for SI-13(5)
- Verify enhancement builds upon base control SI-13
How to Test
Step 1: Review Documentation
Examine the System Security Plan (SSP) and related artifacts for SI-13(5) 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 |
|---|---|---|
| cloud-audit-mcp | Check integrity monitoring | cloud_audit_monitoring |
| AWS CLI | Review GuardDuty/Inspector | aws guardduty list-detectors |
Remediation Guide
Control Statement
Provide [organization-defined] [organization-defined] for the system.
Implementation Guidance
Failover refers to the automatic switchover to an alternate system upon the failure of the primary system. Failover capability includes incorporating mirrored system operations at alternate processing sites or periodic data mirroring at regular intervals defined by the recovery time periods of organizations.
Risk Assessment
| Finding | Severity | Impact |
|---|---|---|
| SI-13(5) Failover Capability not implemented | High | System and Information Integrity |
| SI-13(5) partially implemented | Medium | Incomplete System and Information Integrity |
CWE Categories
| CWE ID | Title |
|---|---|
| CWE-20 | Improper Input Validation |
References
- NIST SP 800-53 Rev 5 - SI-13(5)
- 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 (CP-6, CP-7, CP-9) reviewed