NIST SP 800-171 Compliance
NIST SP 800-171 sets the security requirements for protecting Controlled Unclassified Information and underpins CMMC. Learn how ImmuniWeb supports its vulnerability scanning and security testing requirements.
Cumplimiento con NIST SP 800-171 (Rev.3)
What Is NIST SP 800-171?
NIST SP 800-171 specifies the security requirements a contractor or other nonfederal organization must meet when CUI resides on its systems. The requirements span families such as access control, audit and accountability, configuration management, risk assessment, security assessment, system and communications protection, and system and information integrity.
NIST SP 800-171 specifies the security requirements a contractor or other nonfederal organization must meet when CUI resides on its systems. The requirements span families such as access control, audit and accountability, configuration management, risk assessment, security assessment, system and communications protection, and system and information integrity.
Descubra cómo ImmuniWeb soporta el escaneo de vulnerabilidades y la remediación de fallos según NIST 800-171 - probando los sistemas donde reside la CUI. Solicite una demostración· o ejecute una prueba gratuita de Community Edition.
Who Must Comply with NIST 800-171?
NIST SP 800-171 applies to:
- Department of Defense contractorshandling CUI, under DFARS 252.204-7012.
- Suppliers and subcontractors in the defense industrial base that receive or generate CUI.
- Other federal contractors required by contract to protect CUI.
Where CUI is processed by internet-facing applications, those applications must be secured and tested.
Key NIST 800-171 Requirements for Application Security
Several requirement families drive application-security work:
- Risk Assessment - vulnerability monitoring and scanning: scan systems and applications for vulnerabilities at an organization-defined frequency and when new vulnerabilities are identified.
- Security Assessment: assess the security controls protecting CUI to determine whether they are effective.
- System and Information Integrity - flaw remediation: identify, report and correct system and application flaws in a timely way.
NIST 800-171 Security Requirements in Depth
Vulnerability Monitoring and Scanning
NIST 800-171 requires ongoing vulnerability scanning of systems and applications, with the scope updated as new vulnerabilities emerge. Automated scanning of internet-facing web and mobile applications feeds this requirement directly, and attack-surface management keeps the scope complete.
Security Assessment and Flaw Remediation
Las organizaciones deben evaluar si los controles de seguridad son eficaces y subsanar los fallos de manera oportuna. Las pruebas de penetración validan la eficacia de los controles frente a ataques reales, y los informes claros de remediación evidencian la corrección oportuna.
Riesgos comunes en aplicaciones web y móviles a abordar
Las vulnerabilidades de las aplicaciones que estos requisitos buscan detectar se corresponden estrechamente con el OWASP Top 10:
- Broken Access Control — users reaching data or actions they should not.
- Fallos Criptográficos: cifrado débil o ausente que expone datos sensibles.
- Injection — SQL, command or other injection via unvalidated input.
- Insecure Design —missing security controls by design, not just by bug.
- Security Misconfiguration — default, incomplete or unsafe configuration.
- Componentes vulnerables y obsoletos: bibliotecas y frameworks sin parches.
- Identification & Authentication Failures —weak login, session or credential handling.
- Fallos en la integridad del software y de los datos: actualizaciones no fiables, procesos de CI/CD inseguros.
- Fallos en el registro de seguridad y la monitorización — ataques que pasan desapercibidos.
- Server-Side Request Forgery (SSRF) — the server tricked into making malicious requests.
For mobile apps, the OWASP Mobile Top 10 is the equivalent reference (insecure data storage, insecure communication, weak cryptography, and so on). Reliably finding these issues requires testing the running application, not just a documentation review.
How to Support NIST 800-171 with ImmuniWeb
- Alcance de los sistemas CUI. Mapear aplicaciones y activos expuestos a Internet que gestionan información CUI con ImmuniWeb Discovery.
- Scan for vulnerabilities with Neuron at your defined frequency.
- Assess controls with On-Demand and MobileSuite penetration testing.
- Remediate flaws using actionable, zero-false-positive reports.
- Secure development with Continuous in CI/CD.
- Re-test after changes and on a recurring basis.
How ImmuniWeb Helps You Achieve NIST 800-171 Compliance
ImmuniWeb supports the vulnerability-scanning, security-assessment and flaw-remediation requirements with testing that produces assessment-ready evidence.
| Requisito | Lo que requiere | Productos ImmuniWeb |
|---|---|---|
| Escaneo de vulnerabilidades | Scan systems/applications for vulnerabilities. | Neuron, Discovery |
| Security assessment | Assess control effectiveness via penetration testing. | On-Demand, MobileSuite |
| Flaw remediation / secure dev | Correct flaws; secure the development life cycle. | Neuron, On-Demand, Continuous |
ImmuniWeb Neuron and Neuron Mobile provide automated scanning; On-Demand and MobileSuite deliver penetration testing; Continuous embeds testing into CI/CD; and Discovery maps the attack surface where CUI may be exposed - together producing evidence for CMMC and DFARS assessments.
NIST 800-171 vs International Frameworks
Si ya trabaja con estándares internacionales, las mismas pruebas de ImmuniWeb apoyan todos ellos:
| Framework | Perspectiva de la seguridad de aplicaciones | Cómo mapea ImmuniWeb |
|---|---|---|
| NIST SP 800-171 | Vulnerability scanning, assessment, flaw remediation | Web/mobile pentest + scanning + ASM |
| CMMC (Level 2) | Verifies 800-171 implementation | Las pruebas como evidencia de evaluación |
| NIST SP 800-53 | Broader control catalog | Pruebas y monitoreo de aplicaciones |
| ISO/IEC 27001 | Controles técnicos del Anexo A | Pruebas como evidencia de controles |
Pruebas de penetración frente a escaneo de seguridad
Both are needed. El escaneo automatizado (DAST) proporciona una cobertura amplia y frecuente, siendo ideal para las pruebas continuas en CI/CD; las pruebas de penetración manuales detectan vulnerabilidades de lógica de negocio y complejas que los escáneres pasan por alto, y ofrecen la profundidad que esperan los auditores y reguladores. Combina el escaneo continuo con pruebas de penetración manuales periódicas, y vuelve a probar tras cambios significativos.
Lista de verificación de cumplimiento (Application Security)
- CUI systems and internet-facing apps inventoried
- Vulnerability scanning at the defined frequency
- Security controls assessed via penetration testing
- Flaws remediated promptly and re-tested
- Secure development practices applied
- Evidence retained for SPRS / CMMC assessment
- Correct 800-171 revision confirmed for each contract
Why NIST 800-171 Compliance Matters
Compliance with NIST 800-171 is a condition of winning and keeping U.S. Department of Defense contracts, and CMMC now verifies it through self-assessment or third-party assessment. A low SPRS score or failed assessment can put contracts at risk.
Because web and mobile applications that handle CUI are a real attack surface, demonstrable vulnerability scanning and security testing are among the most direct ways to evidence the relevant requirements.