Case studies on Authentication, Authorization and Audit in SOA Environments Dr. Srini Kankanahalli

ClearAvenue, LLC Headquartered in Columbia, Maryland Focused on Systems Integration, Data Management, Information Security, Storage networking, Custom Software development Premier IBM Business Partner CMMi Maturity Level 3 clearAvenue, LLC is a 8(a) certified minority women owned Small Disadvantaged Business

Authentication, Authorization, and Audit– The Challenge Identity and Access Management is a major challenge for all federal agencies Multitude of Applications, Legacy as well as state-of the art Systems pose additional challenges The complexity of Federal laws as well as federal contracting regulations further adds to the complexity Comprehensive End-to-End Audits across multiple systems poses a significant challenge Security is a major challenge for most organizations because of the threats. In federal agencies, it is even more complicated by the various federal mandates as well as complex federal contracts and contracting rules. Performing end-to-end audits, while a Certification and Accreditation mandate, poses significant challenges.

Layers of Security Perimeter Defense Control Layer Assurance Layer Keep out unwanted with Firewalls Anti-Virus Intrusion Detection, etc. Perimeter Defense Control Layer Assurance Layer Control Layer Which users can come in? What can users see and do? Are user preferences supported? Can user privacy be protected? Security involves a multitude of technologies, products and processes. The notion of defense in depth is illustrated. Every layer has a different role and poses different challenges Assurance Layer Can I comply with regulations? Can I deliver audit reports? Am I at risk? Can I respond to security events?

Services (Definitions) Supporting Middleware SOA Security Encompass All Solution Layers 5 5 5 5 consumers SCA Portlet WSRP B2B Other SOA Security Identity Authentication Authorization & Privacy Auditing Confidentiality, Integrity and Availability Compliance Administration and Policy Management Service Consumer Service Consumer 4 4 4 4 business processes business processes process choreography process choreography 3 3 3 3 Services (Definitions) services atomic and composite atomic and composite 2 2 2 2 Service components Service Provider Service Provider 1 1 1 1 ISV SAP Packaged Custom Custom OO OO While there is lot of talk around Service Oriented Architecture, implementing SOA poses multiple challenges. One of the major challenges is the propogation of identity across multiple services Outlook Packaged Application Custom Custom Application Application Application Application Application Application Application Operational systems Custom Apps Platform Supporting Middleware OS/390 Unix MQ DB2

Identity Management– the basis of comprehensive security Identity management is one of the main pillars of comprehensive security.

User Provisioning and De-provisioning User Provisioning across multiple enterprise systems poses significant challenges User De-provisioning is a greater challenge Role-based access and Role Management adds to the complexity Role Engineering encompasses very little “engineering” and lot of “Politics”

Implementing Role-based Access Control Successfully implemented RBAC with role-based provisioning to legacy as well as state-of the art systems A Role is a set of entitlements that has a “Business Context” Roles are not “cast in stone,” but is derived through a “trial and error” process Role Re-factoring has to be kept in mind during the design and implementation of any RBAC system

Role-based Access to Legacy and Modernized Systems

Legacy systems integration -- Seibel

Federated Identity Management-- Challenge In many situations, one federal agency has to communicate and access data from another agency This problem also may exist between multiple subdivisions of the same agency or organization The solution involves building and propagating trust across boundaries using industry standards Audits across agencies or subdivisions pose additional challenges

Organization B Organization A SAML Organization A Federated Identity Management Across Multiple Organizations

Federation Entities

SOA Federated Identity Management SAML TFIM SAML LDAP Internet Web Service Websphere ND

Multi-Factor Authentication There are multiple federal and commercial mandates for strong and Multi-factor authentication

Multi-factor based Certificate based Authentication architecture using IBM Tivoli Federated Identity manager

Conclusions We have implemented complex security patterns in multiple federal agencies Security is Multi-faceted and hence has to be carefully architected and implemented correctly The availability of multiple point products adds to the integration complexity Authentication, Authorization, Audit and Identity Management are all intertwined and has to be planned and implemented correctly to ensure that “Attack Surface” of an organization is minimized