Inherent Security Design Patterns for SDN/NFV Deployments
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The document discusses the inherent security design patterns for Software-Defined Networking (SDN) and Network Functions Virtualization (NFV) deployments, emphasizing the need for security measures that evolve with technology. It highlights the importance of a zero-trust security model, manual deployment challenges, and strategies to protect against cyber attacks throughout their lifecycle. Ultimately, it asserts that security can now be integrated into NFV infrastructure, making it a scalable resource for application workloads.
Inherent Security Design Patterns for SDN/NFV Deployments
- 1. Inherent Security Design Patterns for SDN/NFV Deployments John McDowall Palo Alto Networks
- 2. Drivers for Consumers and Providers of Cloud/NFV Automa'on Minimize OPEX & CAPEX Dynamic Resources Self-‐Service Portals Scalability Agility Producers Consumers Make security easy-to-deploy by consumers No Bottlenecks Need well-defined security posture New Business Models
- 3. “….if innova+on doesn’t get ahead of the hackers, we will likely see roadblocks to rolling out new SDx applica+ons …. …. because of the fear that SDx Infrastructure cannot protect against and contain new aAacks. “ SDxCentral SDx Infrastructure Security Report 2015 Edition
- 4. Key Security Perspectives The security perimeter no longer exists. Understanding the Cyber Attack Pattern Lifecycle How do we prevent attacks with SDN/NFV ?
- 5. Preventing Across the Cyber Attack* Life Cycle Unauthorized Access Unauthorized Use Gather Intelligence Leverage Exploit Execute Malware Command & Control Actions on the objective Reconnaissance Weaponization & Delivery Malware Communicates with Attacker Exploitation Data Theft, Sabotage, Destruction * Intelligence-Driven Computer Network Defense Informed by Analysis of Adversary Campaigns and Intrusion Kill Chains Eric M. Hutchins, Michael J. Cloppert, Rohan M. Amin, Ph.D. Lockheed Martin Corporation Breach the Perimeter 1 Deliver the Malware 2 Exfiltrate Data 4Lateral Movement 3
- 6. Security Challenges with NFV Manual Deployments Slow and error-‐ prone processes to enable security Transient Workloads Workload lifespan is in hours, days or weeks Sta'c Remedia'on Lack of dynamic remediaCon measures Malware 30,000 new malware /day
- 7. Security Design Patterns for NFV
- 8. Applying Zero Trust* to NFV FoundationalSecurity DesignPattern * No More Chewy Centers: The Zero Trust Model of Information Security John Kindervag, Forester Research, 2014 Verify and Never Trust Inspect and Log all Traffic Design Network Inside-‐Out Predefine: • User-Access Controls • Layer-7 Interactions Build: • Security Compliance • Auditable Entities Enable: • Fine grained kill switch • Real-time Security Updates
- 9. Foundation Security Blueprint FoundationalSecurity DesignPattern • Define allowable interacCons • Add applicaCon security paOern • Sign-‐off by security team • Deploy zero-‐trust applicaCon security paOern. • Merge parameterized paOern with tenant instance • Deny-‐All to Only-‐ Allowed • Real-‐Cme InspecCon • Update threat paOerns, sigs et al • Disrupt and/or block cyber aOacks • Archive logs & policies • Perform forensics • Generate report Prepare Deploy Update Remove 1 2 3 4 Virtual Function Security Model Virtual Function
- 10. Implementation of Foundation Security Pattern SecureEncapsulation DesignPattern Enforce zero-trust model – block all traffic until policy is applied. Security Enforcement Point VM-‐A Security Enforcement Point VM-‐A Security Enforcement Point VM-‐A Security Enforcement Point VM-‐A 1 Security Controller Get signed “security pattern” from VM deployment Descriptor and deploy with application. 2 Get VNI/Tenant ID for instance mapping bridge vxlan nic Apply policy/tenant based on tenant ID and application security pattern retrieved from deployment. 4 3 v-‐wire v-wire NFV deployed security enforcement point. 1 Data link Control link v-‐wire
- 11. Summary • Security was one on the biggest impediments to deployment of NFV. • Leveraging NFV to define a foundational pattern to protect application workloads. • Application Security patterns can now be applied to the foundational pattern to implement security from the inside out • Security is now a resource that scales with your NFV infra-structure. 11