Entra ID attack labs expose where identity governance breaks down

At a glance

What this is: Semperis’s EntraGoat is a deliberately vulnerable Entra ID lab that simulates real identity attack paths for defenders.

Why it matters: It matters because identity teams need safe ways to validate how service principals, app permissions, and privileged roles can be abused before attackers do.

By the numbers:

• Only 5.7% of organisations have full visibility into their service accounts.
• 97% of NHIs carry excessive privileges, increasing unauthorised access and broadening the attack surface.
• 91.6% of secrets remain valid five days after the targeted organisation is notified, showing a critical gap in remediation procedures.

👉 Read Semperis's EntraGoat post on Entra ID attack-path training and abuse scenarios

Context

Entra ID attack paths fail in practice when teams only review configuration states and never rehearse how privilege actually expands during abuse. EntraGoat is a deliberately vulnerable Entra ID lab that gives defenders a safe tenant in which to test those paths, especially around service principals, app permissions, and privileged role escalation.

For IAM and NHI programmes, the gap is not awareness but validation. Defenders can spot misconfigurations on paper, but many programmes still lack a repeatable way to prove how an over-permissioned application, stale group membership, or certificate-based impersonation becomes account takeover or Global Administrator access.

Semperis positions the lab as a learning environment rather than a broader cloud simulation, which keeps the focus on identity control failure. That makes it a useful proxy for how many real Entra ID environments are attacked today: through identity relationships, not malware or perimeter compromise.

Key questions

Q: What breaks when Entra ID privileges are only reviewed on paper?

A: Paper reviews miss the way ownership, Graph permissions, and eligible roles combine into actual escalation paths. An identity can look low risk in isolation and still become administrative when a linked permission, activation rule, or ownership right is abused. Teams need to test the chain, not just the entitlement list.

Q: Why do service principals create hidden privilege risk in Entra ID?

A: Service principals can carry powerful directory permissions even when they are not treated like human admins. If ownership, consent, or API rights are weakly governed, they become a route to broader access and persistence. That is why machine identities need the same lifecycle and privilege scrutiny as people.

Q: How do security teams know whether PIM is actually reducing risk?

A: PIM is working only if eligible access cannot be combined with ownership, consent, or role-chaining to reach privileged state faster than governance expects. Teams should test whether activation paths still allow an attacker to move from limited access to administrative control through indirect relationships.

Q: Who should be accountable for abuse of certificate-based admin impersonation?

A: Accountability sits with the teams that own certificate issuance, identity trust, and privileged access governance. If a certificate can impersonate an admin principal, the failure is in lifecycle control and revocation oversight, not only in authentication design. Those responsibilities need explicit ownership and audit trails.

Technical breakdown

How Entra ID privilege escalation starts with ownership and permission abuse

In Entra ID, privilege escalation often begins when an attacker controls something that can grant or extend access, such as an application owner, a service principal with Graph permissions, or an eligible privileged role. Ownership matters because owners can frequently modify settings, grant consent, or add credentials that were not intended for broad use. Graph API permissions become dangerous when they allow directory-wide reads or writes. EntraGoat models these paths so defenders can observe the chain from initial foothold to elevated control.

Practical implication: validate which identities can change directory state, not just which ones can authenticate.

Why PIM and eligible role chains still need abuse testing

Privileged Identity Management reduces standing privilege, but it does not remove the possibility of chained abuse. If an attacker can influence activation conditions, abuse a linked role, or combine group ownership with eligible access, the control boundary can still be crossed. The risk is not only permanent privilege, but privilege that becomes reachable through indirect identity relationships and weak approval assumptions. Lab work is valuable here because it shows whether your activation logic resists adversarial sequencing, not just normal administrator use.

Practical implication: test whether PIM activation paths can be combined with ownership, role assignment, or consent abuse.

Certificate-based persistence turns identity trust into long-lived access

Certificate-based authentication can create durable impersonation risk when a certificate authority or related trust chain is misused. In identity terms, the issue is not simply that a secret exists, but that the trust material can be replayed to impersonate a high-value principal such as a Global Administrator. EntraGoat includes this pattern to show how credential type shapes persistence. This is especially relevant where organisations treat passwordless or certificate-backed access as inherently safer without tracing the full trust lifecycle.

Practical implication: review certificate issuance, storage, and revocation as part of privileged identity governance.

Threat narrative

Attacker objective: The objective is to demonstrate how identity misconfiguration can be chained into privileged Entra ID takeover and defender-relevant escalation paths.

1. Entry begins with a compromised identity foothold inside an Entra ID scenario rather than external reconnaissance, reflecting the lab's attack-path focus.
2. Escalation occurs through service principal abuse, application ownership, Graph API permissions, PIM activation chains, or dynamic administrative unit manipulation.
3. Impact is achieved when the attacker reaches privileged control, including Global Administrator impersonation through certificate-based authentication or related trust abuse.

Breaches seen in the wild

• Cisco DevHub NHI breach — IntelBroker exploited exposed Cisco credentials, API tokens and keys in DevHub.
• DeepSeek breach — DeepSeek breach exposed 1M+ log lines and sensitive secret keys.

Read our 52 NHI Breaches Analysis report for a comprehensive view of breaches impacting Non-Human Identities including AI Agents.

NHI Mgmt Group analysis

Attack-path rehearsal is now a core IAM control, not a training extra. Identity teams cannot assess Entra ID resilience by reviewing policy alone when privilege escalation depends on how ownership, role activation, and API permissions combine at runtime. A lab that reproduces real attack paths turns hidden assumptions into observable failure points. The practical conclusion is that governance needs execution testing, not just design approval.

Over-permissioned application trust is the named failure mode this lab exposes. The article repeatedly shows that app ownership and Graph permissions can become a privilege ladder when they are treated as administrative convenience instead of governed access. That is the control gap, not a theoretical weakness. The implication for practitioners is to treat application identities as first-class privileged subjects, not background plumbing.

Privileged Identity Management does not eliminate abuse when identity relationships are the attack surface. PIM reduces standing privilege, but this scenario set shows that eligible roles, ownership chains, and dynamic administrative units can still be bent into escalation paths. The broader lesson is that time-bounded privilege is not the same as abuse-resistant privilege. Practitioners should validate the full activation chain, not only the role catalogue.

Certificate-based impersonation shows why passwordless is not the same as low-risk. A certificate can be a durable trust token, and if the issuance or trust chain is compromised, impersonation can outlast ordinary credential resets. That makes certificate lifecycle governance a privileged identity problem, not merely an authentication one. The practical conclusion is that passwordless controls still need revocation, issuance, and trust-path review.

EntraGoat sharpens the identity blast radius concept for Entra ID programmes. When a single compromised identity can move from limited access to directory-wide control through a few governed relationships, the real risk is not the initial foothold but the size of the reachable trust graph. This is a useful named concept for practitioners because it reframes identity security around reachable privilege, not just credential strength. The practical conclusion is to measure how far one identity can travel before detection.

From our research:

• Only 5.7% of organisations have full visibility into their service accounts, according to Ultimate Guide to NHIs.
• Another 97% of NHIs carry excessive privileges, which is why identity attack-path validation matters as much as inventory.
• For a broader baseline on machine identity governance, see 52 NHI Breaches Analysis.

What this signals

Identity blast radius is the real unit of analysis: if one compromised Entra ID foothold can reach ownership, consent, or privileged activation, then your programme is measuring the wrong thing. The practical shift is toward reachable privilege graphs, not static role inventories, and that change matters across human, NHI, and agentic identity governance.

Teams should expect more pressure to prove that privileged identity controls resist chained abuse, not just policy drift. That means access review, PIM, and service principal governance will increasingly be judged by how they behave under attack-path testing, not by whether they exist in the control catalogue. For many programmes, this will expose gaps between stated coverage and actual recoverability.

If your identity programme still treats certificate-backed access as a safe default, the Entra ID use case should reset that assumption. Passwordless and non-password authentication can reduce some risks, but they also shift scrutiny toward issuance, revocation, and trust-chain control, which is where governance evidence now needs to live.

For practitioners

• Map escalation paths, not just entitlements Build test cases for ownership abuse, Graph permission misuse, PIM activation chains, and privileged role inheritance so you can see which identities can actually reach admin state.
• Validate service principal governance in a live tenant Review which service principals can modify directory objects, grant consent, or impersonate higher privilege, then compare that to what your access reviews currently cover.
• Exercise certificate lifecycle controls for privileged identities Test how quickly you can revoke, rotate, and detect misuse of certificate-backed access when impersonation is the attack path, not password theft.
• Use controlled labs to rehearse attack sequencing Run identity attack simulations in a test tenant so defenders can observe where approval workflows, role activation, or ownership rules fail under adversarial chaining.

Key takeaways

• EntraGoat shows that Entra ID failures often come from chained identity relationships, not simple login compromise.
• The practical risk is privilege escalation through ownership, Graph permissions, PIM, and certificate trust paths that defenders do not rehearse.
• Identity programmes need attack-path testing and lifecycle governance for service principals and privileged access, not just entitlement reviews.

Key terms

• Service Principal: A service principal is the identity an application uses inside Entra ID to authenticate and receive permissions. It is not a human user, but it can still hold powerful access, make API calls, and become a privilege escalation path if ownership or consent is poorly governed.
• Privileged Identity Management: Privileged Identity Management is a governance control that makes elevated access eligible or time-bounded instead of permanently assigned. It reduces standing privilege, but it does not stop abuse when attackers can chain activation logic, ownership rights, or consent paths into the privileged state.
• Certificate-based Authentication: Certificate-based authentication uses cryptographic certificates instead of passwords to prove identity. In privileged environments, the certificate becomes a trust object whose issuance, storage, and revocation must be tightly controlled, because misuse can enable durable impersonation even when passwords are not present.
• Identity Attack Path: An identity attack path is the sequence of permissions, relationships, and activation steps that lets an attacker move from limited access to a higher privilege outcome. It is the practical route through the trust graph, which is why attack-path validation matters more than isolated control checks.

Deepen your knowledge

NHI governance, agentic AI identity, and machine identity lifecycle are core topics in our NHI Foundation Level course, the industry's only accredited NHI security programme. If you are responsible for identity security strategy or NHI governance in your organisation, it is worth exploring.

This post draws on content published by Semperis: EntraGoat, a deliberately vulnerable Entra ID environment for defender practice. Read the original.