🏛️NIST 800-53 SI-7Rule: NIST-SI-007high

Software, Firmware, and Information Integrity

Description

Employ integrity-verification tools to detect unauthorized changes to software, firmware, and information; respond to detected violations.

⚠️ Risk Impact

Integrity violations indicate active compromise. Without integrity monitoring, attackers modify code or configuration silently — establishing persistence, planting backdoors, or modifying logging.

🔍 How EchelonGraph Detects This

NIST-SI-007Automated scanner rule

EchelonGraph's Tier 1 Cloud Scanner automatically checks for this condition across all connected cloud accounts. Violations are flagged as high-severity findings with remediation guidance.

🔧 Remediation

Deploy file-integrity monitoring (FIM) on critical systems. Use immutable infrastructure where possible (containers, IaC-driven). Cryptographically sign deployed artifacts. Verify signatures at deployment time.

💀 Real-World Attack Scenario

A 2023 supply-chain breach modified a CI/CD pipeline to inject a backdoor into every container build. Without integrity monitoring, the modification went undetected for 4 months. 200+ customer organizations downloaded the backdoored containers. Forensic recovery cost: $14M industry-wide.

💰 Cost of Non-Compliance

Supply-chain integrity breaches: avg $4.55M per affected organization (IBM 2024). FedRAMP SI-7 deficiencies result in ATO suspension.

📋 Audit Questions

  • 1.What integrity monitoring is deployed?
  • 2.How are critical system files protected?
  • 3.Are deployed artifacts cryptographically signed + verified?
  • 4.Show last 30 days of integrity events.

🎯 MITRE ATT&CK Mapping

T1554 — Compromise Client Software BinaryT1195 — Supply Chain Compromise

⚡ Common Pitfalls

  • FIM deployed but excluded directories accumulate without review
  • Signing artifacts but not verifying signatures at deployment
  • Immutable-infrastructure language not matched by immutable-deployment practice

📈 Business Value

Integrity monitoring catches the actions that other controls miss — silent modifications that establish persistent attacker presence. Material for supply-chain risk management.

⏱️ Effort Estimate

Manual

40-80 hours FIM deployment + cryptographic signing pipeline

With EchelonGraph

EchelonGraph monitors integrity events + verifies signing across CI/CD pipelines

🔗 Cross-Framework References

SOC2-CC7.1ISO27001-A.8.32

Automate NIST 800-53 SI-7 compliance

EchelonGraph continuously monitors this control across all your cloud accounts.

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