CUI Compliant
0 NIST 800-171 gaps detected. FedRAMP authorized at High impact level. Approved for CUI handling in DoD environments.
OneDrive GCC High
by Microsoft
FedRAMP Status
FedRAMP Authorized
Impact Level
High
Category
File Sharing
Authorized: March 20, 2018 | Sponsor: Department of Defense
Overview
OneDrive for Business GCC High provides personal cloud file storage and sharing on government infrastructure. It is FedRAMP High authorized and integrates with the Microsoft 365 GCC High ecosystem.
CUI Risk Assessment
FedRAMP authorized at High impact level. Approved for CUI handling in DoD environments.
Using OneDrive GCC High in a Defense Contractor Environment
OneDrive GCC High is specifically architected for defense contractors handling Controlled Unclassified Information (CUI) including technical data packages, procurement sensitive information, export-controlled technical specifications, and personally identifiable information under DFARS contracts. Within CMMC Level 2 authorization boundaries, OneDrive GCC High operates as a FedRAMP High authorized service that maintains logical separation from commercial Office 365 tenants, utilizing dedicated government cloud infrastructure with enhanced background screening for Microsoft personnel. The platform natively supports CUI markings, data loss prevention policies aligned with NIST 800-171 requirements, and integration with Azure Information Protection for automatic classification. DCMA and DIBCAC assessors consistently evaluate OneDrive GCC High's configuration during CMMC assessments, focusing on tenant isolation verification, audit log retention periods, and proper implementation of access controls that align with contractor personnel security clearances. Recent DCMA compliance reviews have specifically validated OneDrive GCC High's cryptographic implementations and data residency controls, with assessors requiring documentation of Microsoft's government cloud boundary segregation. The tool requires minimal compensating controls when properly configured, primarily focusing on ensuring contractor-specific access control policies align with their System Security Plan and that data classification workflows properly identify and protect CUI throughout the document lifecycle.
Deployment & Architecture
Deployment Model: Government Cloud (FedRAMP boundary)
OneDrive GCC High operates within a FedRAMP-authorized boundary. CUI can be processed within the authorization scope, but contractors must verify their specific use case falls within the system's security boundary as documented in the SSP.
Implementation Guide
Defense contractors implementing OneDrive GCC High for CUI handling should plan a 6-8 week phased deployment starting with tenant configuration and Azure AD integration aligned with existing PKI infrastructure. Phase 1 (weeks 1-2) involves establishing proper tenant segregation from commercial services and configuring data loss prevention policies specific to CUI categories outlined in contractor's Data Management Plan. Phase 2 (weeks 3-4) requires migrating existing file shares while maintaining chain of custody documentation for CUI, implementing Azure Information Protection labels that correspond to contractor's CUI marking requirements, and establishing automated backup procedures that comply with NIST 800-171 media protection controls. Phase 3 (weeks 5-6) focuses on user training covering proper CUI handling, document marking procedures, and incident reporting protocols, while updating the System Security Plan to reflect OneDrive GCC High within the authorization boundary. Phase 4 (weeks 7-8) involves final compliance validation including penetration testing of configured access controls and updating POA&M entries to reflect residual risks. Implementation costs typically range from $15,000-$35,000 including licensing, professional services for compliance configuration, and staff training. Contractors must update authorization boundary diagrams to show data flows between OneDrive GCC High and existing CUI systems, and ensure audit logging configurations meet DFARS 252.204-7012 requirements for incident response and forensic analysis.
Configuration Checklist
- 1ISSO must verify OneDrive GCC High tenant is properly segregated from commercial Office 365 services and document boundary controls in the System Security Plan.
- 2System administrator should configure Azure Information Protection labels aligned with contractor's CUI categories and marking requirements per NIST 800-171 MP-3.
- 3ISSO must implement data loss prevention policies that prevent CUI exfiltration and document these controls under NIST 800-171 SC-7 boundary protection.
- 4System administrator should establish audit logging configuration to capture file access, sharing, and modification events per DFARS 252.204-7012 incident reporting requirements.
- 5ISSO must update authorization boundary diagram to include OneDrive GCC High data flows and integration points with existing CUI systems.
- 6System administrator should configure conditional access policies restricting OneDrive access to government-issued devices and authorized locations per AC-3 access enforcement.
- 7Training coordinator must provide CUI handling training to all users covering proper document marking, sharing restrictions, and incident reporting procedures.
- 8ISSO must validate encryption-in-transit and encryption-at-rest configurations meet FIPS 140-2 requirements under NIST 800-171 SC-13.
- 9System administrator should implement automated backup procedures for CUI stored in OneDrive with appropriate retention periods per NIST 800-171 MP-6.
- 10ISSO must conduct penetration testing of configured access controls and update POA&M entries with any residual risks identified during implementation.
Compliance Cross-References
OneDrive GCC High's FedRAMP High authorization directly satisfies NIST 800-171 requirements across multiple control families including Access Control (AC-3, AC-6) through Azure AD integration and conditional access policies, System and Communications Protection (SC-7, SC-8, SC-13) via boundary controls and encryption implementations, and Audit and Accountability (AU-2, AU-3, AU-12) through comprehensive logging capabilities. Under DFARS 252.204-7012, OneDrive GCC High enables contractors to meet safeguarding requirements for CUI through its government cloud boundary and enhanced security controls. For CMMC Level 2 assessments, OneDrive GCC High impacts the Identification and Authentication (IA), System and Information Integrity (SI), and Configuration Management (CM) domains, requiring assessors to validate proper tenant configuration and integration with contractor's broader CUI environment. DFARS 252.204-7021 compliance is supported through OneDrive's incident reporting capabilities and Microsoft's contractor disclosure obligations for cyber incidents affecting government data.
Other FedRAMP Authorized File Sharing Tools
Related Compliance Assessments
Frequently Asked Questions
Is OneDrive GCC High FedRAMP authorized?
Yes. OneDrive GCC High is FedRAMP High authorized as part of Microsoft 365 GCC High.
Can I use OneDrive GCC High with CUI?
Yes. OneDrive GCC High is approved for storing and sharing CUI files within the GCC High environment.
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