AWS IAM Identity Center Integration with Active Directory
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This document provides technical guidance for implementing AWS IAM Identity Center (formerly AWS Single Sign-On) integration with on-premises Active Directory using SAML 2.0 federation and SCIM for user provisioning.
Active AWS Organizations implementation
Existing on-premises Active Directory
Configured AWS Site-to-Site VPN connection
Administrative access to both AWS Organizations management account and Active Directory
SSL certificate for secure SAML communication
AWS IAM Identity Center
On-premises Active Directory
SAML 2.0 federation
SCIM v2.0 protocol
Attribute-based access controls (ABAC)
AWS Organizations
1.1. Install and configure Active Directory Federation Services (AD FS)
Install AD FS role on Windows Server
Configure service account with appropriate permissions
Install and configure required SSL certificates
1.2. Set up required Active Directory groups
Create security groups for different access levels
Ensure group naming convention aligns with planned ABAC strategy
2.1. Enable IAM Identity Center
Navigate to IAM Identity Center console
Enable service in Organizations management account
Select region for IAM Identity Center
2.2. Configure Identity Source
Choose "External identity provider"
Select SAML 2.0 federation
Download AWS service provider metadata file
3.1. Set up AD FS Relying Party Trust
Import AWS service provider metadata
Configure claim rules for:
NameID
Groups
Given name
Family name
Department
3.2. Export AD FS Metadata
Download federation metadata XML file
Import into IAM Identity Center
4.1. Configure SCIM Endpoint
Enable automatic provisioning in IAM Identity Center
Generate SCIM endpoint URL and access token
Configure SCIM client in AD FS
4.2. Set up User and Group Synchronization
Configure filtering rules for user sync
Set up group mapping
Test synchronization process
5.1. Define ABAC Strategy
Create attribute-based access control policies
Map AD groups to AWS permissions
Configure permission sets for different access levels
5.2. Set up Permission Sets
Create permission sets for common job functions
Configure AWS managed policies
Set up custom permission policies as needed
5.3. Configure AWS Account Access
Assign permission sets to groups
Configure account access assignments
Set up multi-account access
Implement least privilege access
Enable MFA for all users
Regular review of access patterns
Audit logging and monitoring
Password policy enforcement
Network security controls
Configure CloudWatch metrics
Set up alerting for failed authentications
Monitor SCIM synchronization status
Track access patterns
Review and update permission sets
Audit group memberships
Update SSL certificates
Patch AD FS servers
Review security policies
SAML authentication failures
Check certificate expiration
Verify claim rules
Validate metadata configuration
SCIM synchronization issues
Verify network connectivity
Check SCIM token validity
Review synchronization logs
Access permission issues
Validate group memberships
Check permission set assignments
Verify ABAC policy conditions
Regular backup of AD FS configuration
Documentation of all settings
Backup of SSL certificates
DR plan for identity provider failure
Alternate access methods for emergencies
Implement change management procedures
Regular security reviews
Documentation maintenance
User training
Regular testing of DR procedures
Periodic access reviews
Configuration version control
Define support processes
Document escalation procedures
Maintain contact information
Set up incident response plan
Enable AWS CloudTrail
Configure audit logging
Regular compliance reviews
Documentation of controls
Access review procedures
This implementation provides a secure, scalable, and maintainable solution for AWS account access management using existing Active Directory infrastructure while maintaining security best practices and enabling proper governance.