Accountability sits with the system owner, the platform team, and the identity team together, because the failure spans application design, host enforcement, and downstream trust architecture. Frameworks such as NIST CSF and zero trust treat that as shared control ownership, not a single-team defect.
Why This Matters for Security Teams
When a management portal can relay into certificate infrastructure, the problem is not just a bad screen or a weak role. It is a trust-path failure that can let one administrative action reach certificate authorities, enrollment services, or signing workflows that define downstream identity. That is why accountability must be shared across the system owner, the platform team, and the identity team, with governance mapped to NIST Cybersecurity Framework 2.0 and zero trust principles rather than treated as a narrow app defect. NHIs are especially exposed here because certificate and workload trust is often scattered across teams and tools. NHIMG research shows that 57% of organisations lack a complete inventory of their machine identities, and 59% say auditing them is harder because ownership and visibility are unclear, which is exactly how relay paths survive review. See also Top 10 NHI Issues and the Ultimate Guide to NHIs — Regulatory and Audit Perspectives for the audit angle. In practice, many security teams encounter this only after a certificate issuance path has already been abused, rather than through intentional design review.
How It Works in Practice
The accountable party is usually the control owner for the management portal, but remediation requires coordinated ownership across application security, infrastructure, and identity operations. The portal team must ensure it cannot be used as a generic relay into certificate services. The platform team must harden the host, constrain service accounts, and remove local privilege paths that enable pivoting. The identity team must define how certificates are requested, issued, scoped, and revoked, because the certificate plane is part of the trust architecture, not a separate back office system. Current guidance suggests treating this as a workload identity and privileged access issue, not only an application authorization issue.
A practical response usually includes:
- Removing direct relay functions unless there is a documented business need.
- Putting certificate enrollment behind explicit approval, RBAC, and just-in-time access.
- Using short-lived secrets and workload identity instead of standing credentials for administrative workflows.
- Logging every certificate request, relay attempt, and authority change as a security event.
- Reviewing the trust boundary between portal, host, and CA using NIST Cybersecurity Framework 2.0 controls for access, monitoring, and recovery.
This matters because certificate abuse can convert a single portal flaw into persistent trust. NHIMG’s NHI Lifecycle Management Guide and Ultimate Guide to NHIs — Lifecycle Processes for Managing NHIs both emphasize lifecycle control because certificates that are easy to mint are also easy to misuse. These controls tend to break down when legacy certificate services are reachable through shared admin portals with broad service account rights because the relay path becomes indistinguishable from legitimate administration.
Common Variations and Edge Cases
Tighter certificate controls often increase operational overhead, so organisations must balance rapid admin workflows against the risk of trust escalation. There is no universal standard for every portal-to-CA pattern yet, but current guidance is clear that any relay path needs explicit ownership and runtime guardrails. In shared services environments, responsibility may sit with a central platform team, while the certificate authority is governed by a separate PKI or identity team; that split is acceptable only if the boundary is documented and tested. In SaaS or outsourced PKI models, the vendor may run the infrastructure, but accountability for configuration, access approvals, and monitoring still remains with the customer.
A common edge case is a portal that does not issue certificates directly but can pass authenticated requests to an internal service that does. That indirection does not remove liability. It usually increases it, because incident responders must trace both the application control plane and the downstream trust chain. For that reason, frameworks such as NIST Cybersecurity Framework 2.0 and Sisense breach are useful reference points for understanding how indirect access and weak segmentation amplify impact. The practical rule is simple: if the portal can reach certificate authority functions, the owner of that reach is accountable for the control failure, even when another team runs the backend.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
OWASP Non-Human Identity Top 10 address the attack and risk surface, while NIST CSF 2.0 and NIST AI RMF set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| NIST CSF 2.0 | PR.AC-4 | Access control ownership is central when a portal can relay into certificate services. |
| OWASP Non-Human Identity Top 10 | NHI-03 | Certificate relay often exposes unmanaged machine identities and weak lifecycle controls. |
| NIST AI RMF | AI RMF governance concepts help structure accountability across multiple control owners. |
Assign clear governance, testing, and monitoring responsibilities across portal, platform, and identity teams.
