Security teams should inventory directory permissions, map who can reset passwords, add members, write DACLs, or control objects, and then trace how those rights combine into attack paths. The goal is not just to list permissions, but to understand which combinations can move an attacker from low privilege to administrative control. Prioritise the shortest paths to high value accounts first.
Why abusable directory permissions become escalation paths
Active Directory permissions are not dangerous because they exist, but because some of them can be chained into higher privilege. A right to reset a password, modify group membership, or edit access control can become the first step in a path to tier-zero control if it is reachable from a low-privilege account. The practical question is which permissions change the attacker’s options, not which ones merely look powerful on paper.
That means security teams need to evaluate permissions as part of the directory attack graph. A single delegated right may be acceptable in isolation, but the same right becomes material when it can be used on a user, group, computer, or administrative object that leads to broader control. This is why effective review focuses on reachability, inheritance, and who can act on high-value objects.
One useful way to think about the problem is to separate direct privilege from combinable privilege. Direct privilege is obvious, such as membership in a privileged group. Combinable privilege is more subtle, for example the ability to write a DACL, change a service account, or add a principal to a group that itself has privileged reach. Those weaker rights are often the real escalation mechanism.
Security teams should also treat AD delegation as a lifecycle problem, not a one-time audit. Rights change as groups evolve, objects are repurposed, and inherited permissions spread through OUs. A permission that was harmless when assigned can become abusable after a new admin group, computer account, or service object is introduced into the same path.
What to inventory and how to interpret the results
Start with the permissions that most often enable takeover: password reset, group membership changes, GenericAll, GenericWrite, WriteDACL, WriteOwner, and control over objects that can themselves delegate authority. Then map those rights to the objects they touch. A permission on a normal user is not the same as the same permission on a privileged service account, domain controller, or administrative group.
Next, evaluate whether the principal can influence authentication, authorization, or replication-related objects. In directory abuse work, the most important question is often not “does this account have many permissions?” but “can this account alter something that a more privileged identity trusts?” That may include nested groups, GPO-linked objects, delegated admin containers, or service accounts with broad downstream access.
To reduce noise, distinguish business delegation from escalation potential. Help desk rights, onboarding workflows, or application support access can be legitimate, but they should still be tested for blast radius. If a support role can reset credentials for users that are members of privileged groups, the control may be operationally justified yet still unsafe without compensating separation.
For practitioners, the most actionable output is a ranked list of shortest paths to privileged outcomes. That ranking should show which objects are reachable, which rights are involved, and where the chain crosses from routine administration into privilege escalation. MITRE ATT&CK Enterprise Matrix is useful here because it frames those chains in terms of credential access, privilege escalation, and lateral movement.
Shorten the attack graph before the attacker does
Once the risky combinations are identified, the goal is to remove unnecessary pathing, not to make every permission perfectly symmetric. The highest-value fixes are usually the ones that break a chain early: remove WriteDACL from non-admin roles, narrow password-reset authority, split delegated support roles from privileged targets, and ensure high-value groups cannot be modified through indirect inheritance. Active Directory and Entra ID Hardening Guide is a strong companion for prioritising tier-zero and delegation-related controls.
Reviewing only current permissions is not enough. Security teams should also verify where permissions are effective through inheritance, nested group membership, and shadow administration. An account may appear low privilege in a static export while still inheriting enough effective rights to modify the wrong object. That is why effective access analysis is more important than raw ACL counts.
Where possible, reduce standing administrative reach and use time-bound elevation for the small set of tasks that genuinely need it. If a permission exists only because a workflow needs occasional access, it should be eligible, auditable, and revocable rather than permanently present. Just-in-Time Access and Zero Standing Privilege Guide helps teams translate that principle into directory access design.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
MITRE ATT&CK addresses the attack surface, NIST SP 800-53 Rev 5 and NIST CSF 2.0 set the technical controls, and ISO/IEC 27001:2022 defines the regulatory obligations.
| Framework | Control / Reference | Relevance |
|---|---|---|
| MITRE ATT&CK | T1068 — Exploitation for Privilege Escalation | AD abuse often becomes an escalation chain to higher privileges. |
| Recommendation — Map risky directory rights to privilege-escalation paths and prioritize breaking the shortest chains. | ||
| NIST SP 800-53 Rev 5 | AC-6 — Least Privilege | Directory delegation should be constrained to the minimum rights needed. |
| AC-2 — Account Management | Permission review depends on knowing which accounts and groups exist and what they can do. | |
| IA-2 — Identification and Authentication (Organizational Users) | Password reset and admin control paths rely on authenticated user access. | |
| Recommendation — Restrict directory permissions to the smallest role-scoped set that still supports the workflow. Review accounts and group assignments for delegated rights that can affect privileged objects. Protect privileged directory actions with strong authentication and tightly scoped administrative access. | ||
| NIST CSF 2.0 | ID.AM-01 — Physical devices and systems are inventoried | Directory permission review starts with an accurate inventory of objects and relationships. |
| PR.AA-05 — Identity management, authentication, and access control are managed for users, devices, and systems | Abusable AD permissions are an access-control problem centered on who can do what. | |
| Recommendation — Maintain an inventory of directory objects and high-value relationships before assessing abuse paths. Apply role-scoped access controls to reduce who can alter privileged directory objects. | ||
| ISO/IEC 27001:2022 | A.5.15 — Access control | Directory permissions are an access-control design and review issue. |
| A.8.2 — Privileged access rights | The question is specifically about rights that can be turned into escalation paths. | |
| Recommendation — Define and review directory access rules so privileged objects cannot be changed by unnecessary principals. Periodically review privileged rights and remove directory privileges that are not strictly required. | ||
Practitioner Guidance
What to prioritise: Put the shortest paths to domain or tier-zero control at the top of the review queue, even if they involve only one or two seemingly ordinary rights. A single delegated permission on the wrong object is often more urgent than broad but inert access elsewhere.
What to verify: Confirm effective permissions, not just assigned ones. Check inheritance, nested groups, and object scope so you know whether a right can actually be exercised against privileged targets.
Practitioner takeaway: The best AD permission review is path-based, not inventory-based, because escalation usually comes from how permissions combine, not from any one permission in isolation.
Related resources from NHI Mgmt Group
- How should security teams identify privileged users in Active Directory before attackers abuse them?
- How can IAM teams identify privilege escalation paths before attackers do?
- How should security teams reduce Active Directory attack paths before attackers chain legacy protocols and overprivileged accounts?
- How should security teams assess cloud identity attack paths before attackers chain them?
Deepen Your Knowledge
Reviewed and updated by the NHIMG editorial team on September 26, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org
