At a growing tech company, the IT team faced a serious security breach. A former employee’s account, left active in a SaaS platform due to manual offboarding gaps, was used to access sensitive customer data. Some employees also retained admin privileges they no longer needed, creating additional security risks.
This is not an isolated case, incomplete offboarding is a common cause of security incidents, with organizations facing unauthorized access due to outdated or unrevoked credentials [source].
The IT team faced challenges due to high employee turnover rates since they needed to maintain access alignment among several cloud applications. The organization required automated solutions for user access management to provide proper system privileges alongside protected security measures.
This write-up explores how SCIM (System for Cross-domain Identity Management) and ADFS (Active Directory Federation Services) work together to automate identity lifecycle management, their security benefits, and best practices for implementation.
The security breach exposed the IT team to the understanding that manual user access management had reached its limit. Their immediate need was an automated system that could control access provisioning along with deprovisioning so that employees would have appropriate access but not over an extended period.
SCIM and ADFS work together to streamline identity lifecycle management:
By integrating SCIM with ADFS, the IT team eliminated security risks from outdated accounts, enforced centralized access management, and reduced the burden of manual identity administration.
After implementing SCIM, the IT team quickly realized a gap: while SCIM automated user provisioning, it did not handle authentication. Employees still needed a way to securely access applications without managing multiple credentials. This is where Active Directory Federation Services (ADFS) bridges the gap by enabling authenticated access through Single Sign-On (SSO) and centralized authentication.
SCIM and ADFS eliminate manual account management, reducing security risks, and enforcing consistent access policies.
By integrating SCIM’s application-level provisioning with ADFS’s directory-level authentication, organizations achieve a seamless and secure identity management experience across cloud and on-premises environments.
Through collaboration between SCIM and ADFS, the IT team achieved automatic user access updates. An automated system processed all changes in Active Directory (AD) through a response sequence to handle user creation and offboard events, which maintained continuous identity management for all applications.
The proxy service plays a critical role in facilitating the integration of ADFS with external applications by enabling single sign-on (SSO) and linking user identity and claim rules between Active Directory and third-party systems.
By integrating SCIM with ADFS, organizations eliminate manual identity management, improve security, and ensure users always have the right level of access- no more, no less.
After struggling with manual provisioning and authentication gaps, the IT team knew they needed a centralized system to manage identities efficiently. SCIM alone automated user provisioning, but authentication remained fragmented across multiple applications. This created security risks, compliance challenges, and additional administrative workload.
By integrating SCIM with ADFS, organizations can:
While SCIM automates user provisioning across applications, it does not handle authentication on its own. Without ADFS, authentication remains a challenge, requiring users to log in separately to each application and leading to inconsistent access policies.
By integrating ADFS with SCIM, organizations get a fully automated identity management system that:
By using SCIM for provisioning and ADFS for authentication, organizations achieve secure, seamless identity management with reduced security risks and lower administrative overhead.
Organizations achieve automated identity management security enhancements by integrating SCIM with ADFS. This ensures that authorized users can securely access applications, while departed employees immediately lose access, reducing security risks.
Organizations achieve improved security and easier management and compliance through the combination of SCIM for provisioning with ADFS to secure authentication.
Unsecured configurations or controls implemented during SCIM and ADFS deployment may create opportunities for security vulnerabilities to appear. IT teams need to resolve these security risks because overcoming unauthorized access and data breaches, along with compliance violations is essential.
SCIM relies on APIs to manage user accounts, making it a potential target for attackers. SCIM authentication typically uses bearer tokens, which, if compromised, can allow unauthorized modifications to user data.
If an attacker gains access to a SCIM bearer token, they could:
Sync errors or misconfigurations can result in ex-employees retaining access to SaaS applications. These orphaned accounts pose a security risk if left unmanaged, increasing the likelihood of unauthorized access.
Some SaaS applications may not enforce SCIM deprovisioning properly, leading to users retaining access outside IT oversight. This creates security gaps where unauthorized access can go undetected.
By proactively addressing these risks, organizations can maximize the security benefits of SCIM and ADFS while ensuring strong access control and compliance.
To ensure a secure SCIM and ADFS deployment, IT teams should follow these best practices:
Organizations that adopt the security best practices can utilize SCIM and ADFS for secure automated identity management solutions that minimize potential security risks.
Using SCIM with ADFS streamlines both user provisioning processes and authentication functions, which decreases security vulnerabilities while sustaining regulatory protocols. The SCIM system supports identity lifecycle operations and, when combined with ADFS, users gain access through Single Sign-On authentication, which eliminates time-wasting repeated logins and manual access administration. The combined deployment of SCIM with ADFS stops orphaned accounts by implementing uniform access protocols and adding security benefits from MFA while automatically ending user access.
The risks of vulnerabilities appear through poorly configured systems, insufficient API security measures, and uncontrolled SCIM integration implementations. Organizations need to track SCIM logs alongside enforcing least privilege access and enabling MFA to protect their identity infrastructure. Through the combination of SCIM technology and ADFS, organizations achieve easier identity management while enhancing security measures and maintaining complete control over access permissions.
Through SCIM in Active Directory, users can synchronize their AD account properties with third-party cloud applications that include Salesforce, Slack, and ServiceNow. The system performs automated account maintenance and automatically creates, updates, and deactivates profiles from Active Directory changes as part of maintaining application synchronization.
SSO stands as the core principle of Single Sign-On (SSO) that allows users to authenticate once for many application logins without the need for extra authentication steps. ADFS delivers SSO authentication through its evaluation service of user identities, which generates authentication tokens using SAML, OAuth, and OpenID Connect protocols. The functionality resides in Single Sign-On, while ADFS acts as the implementation mechanism for this functionality.
Windows Server-based ADFS operates as an on-premises identity management system that uses Active Directory for authentication functions. The system allows identity federation with cloud applications but remains suitable when organizations need to secure hybrid environments that use on-prem and cloud-based authentication.
If SCIM sync fails, user data may become outdated or inconsistent across applications, leading to potential security risks. Orphaned accounts may remain active, allowing unauthorized access, or deactivated users may still retain access to critical systems. To prevent this, organizations should enable real-time sync monitoring, implement fallback scripts for manual deprovisioning, and audit SCIM logs to detect and resolve sync failures promptly.