IAC-13: Adaptive Identification & Authentication
Mechanisms exist to allow individuals to utilize alternative methods of authentication under specific circumstances or situations.
Control Question: Does the organization allow individuals to utilize alternative methods of authentication under specific circumstances or situations?
General (8)
| Framework | Mapping Values |
|---|---|
| AICPA TSC 2017:2022 (used for SOC 2) (source) | CC6.6-POF3 |
| NIST 800-53 R4 | IA-10 |
| NIST 800-53 R5 (source) | IA-10 |
| NIST 800-53 R5 (NOC) (source) | IA-10 |
| UL 2900-1 2017 | 8.9 |
| SCF CORE Mergers, Acquisitions & Divestitures (MA&D) | IAC-13 |
| SCF CORE ESP Level 2 Critical Infrastructure | IAC-13 |
| SCF CORE ESP Level 3 Advanced Threats | IAC-13 |
US (4)
| Framework | Mapping Values |
|---|---|
| US CERT RMM 1.2 | IMC:SG2.SP1 |
| US DHS CISA TIC 3.0 | 3.PEP.IN.AACON 3.PEP.ID.AAUTH |
| US DHS ZTCF | APP-02 USR-01 |
| US NISPOM 2020 | 8-607 |
Capability Maturity Model
Level 0 — Not Performed
There is no evidence of a capability to allow individuals to utilize alternative methods of authentication under specific circumstances or situations.
Level 1 — Performed Informally
C|P-CMM1 is N/A, since a structured process is required to allow individuals to utilize alternative methods of authentication under specific circumstances or situations.
Level 2 — Planned & Tracked
Identification & Authentication (IAC) efforts are requirements-driven and governed at a local/regional level, but are not consistent across the organization. CMM Level 2 control maturity would reasonably expect all, or at least most, the following criteria to exist: o Implement and maintain an Identity & Access Management (IAM) capability for all users to implement “least privileges” Role Based Access Control (RBAC) practices for the management of user, group and system accounts, including privileged accounts. o Govern IAM technologies via RBAC to prohibit privileged access by non-organizational users, unless there is an explicit support contract for privileged IT support services.
- Logical Access Control (LAC) is decentralized (e.g., a localized/regionalized function) and uses non-standardized methods to implement secure, resilient and compliant practices.
- IT/cybersecurity personnel identify cybersecurity and data protection controls that are appropriate to address applicable statutory, regulatory and contractual requirements for logical access control.
- IT personnel:
- Active Directory (AD), or a similar technology, is primarily used to centrally manage identities and permissions with RBAC. Due to technical or business limitations, asset/process owners are empowered to operate a decentralized access control program for their specific systems, applications and services that cannot be integrated into AD.
- IAM controls are primarily administrative in nature (e.g., policies & standards) to manage accounts and permissions.
Level 3 — Well Defined
Identification & Authentication (IAC) efforts are standardized across the organization and centrally managed, where technically feasible, to ensure consistency. CMM Level 3 control maturity would reasonably expect all, or at least most, the following criteria to exist:
- An Identity & Access Management (IAM) function, or similar function, centrally manages permissions and implements “least privileges” Role Based Access Control (RBAC) practices for the management of user, group and system accounts, including privileged accounts.
- The Human Resources (HR) department governs personnel management operations and notifies IAM personnel of personnel role changes for RBAC-based provisioning and deprovisioning actions.
- An IT Asset Management (ITAM) function, or similar function, categorizes endpoint devices according to the data the asset stores, transmits and/ or processes and applies the appropriate technology controls to protect the asset and data that conform to industry-recognized standards for hardening (e.g., DISA STIGs, CIS Benchmarks or OEM security guides).
- An IT infrastructure team, or similar function, ensures that statutory, regulatory and contractual cybersecurity and data privacy obligations are addressed to ensure secure configurations are designed, built and maintained.
- Active Directory (AD), or a similar technology, is used to centrally manage identities and permissions. Only by exception due to a technical or business limitation are solutions authorized to operate a decentralized access control program for systems, applications and services.
Level 4 — Quantitatively Controlled
See C|P-CMM3. There are no defined C|P-CMM4 criteria, since it is reasonable to assume a quantitatively-controlled process is not necessary to allow individuals to utilize alternative methods of authentication under specific circumstances or situations.
Level 5 — Continuously Improving
See C|P-CMM4. There are no defined C|P-CMM5 criteria, since it is reasonable to assume a continuously-improving process is not necessary to allow individuals to utilize alternative methods of authentication under specific circumstances or situations.
Assessment Objectives
- IAC-13_A01 supplemental authentication techniques or mechanisms to be employed when accessing the system under specific circumstances or situations are defined.
- IAC-13_A02 circumstances or situations that require individuals accessing the system to employ supplemental authentication techniques or mechanisms are defined.
- IAC-13_A03 individuals accessing the system are required to employ supplemental authentication techniques or mechanisms under specific circumstances or situations.