Individual skill

analyzing-active-directory-acl-abuse

Detect dangerous ACL misconfigurations in Active Directory using ldap3 to identify GenericAll, WriteDACL, and WriteOwner abuse paths

skills/analyzing-active-directory-acl-abuse/SKILL.md

Read pinned source

Source commit 54a798831d2266a3ca61ce68a7acb80b81160d57

What was checked

Matches the observed repository HEAD: Yes
Scanner rules are current: No
Repository scan complete: No
Skill scan complete: Yes
Observed behavior: Not checked yet
Last checked: Nov 2, 2026

These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.

Install this skill

Choose an agent in your Stack or copy a command below. Commands fetch the pinned commit and copy only this skill directory. Existing destinations are refused. Copying a command does not install anything.

An install command is unavailable: current rules, complete repository and skill scans, an eligible behavior level and a permitted license are required.

Repository context

Repository stars (not skill ratings): 35,796
Repository last updated: Aug 31, 2026
License: Apache-2.0

Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.

ai-agents Repository topic
claude-code Repository topic
cybersecurity Repository topic
incident-response Repository topic
mitre-attack Repository topic
penetration-testing Repository topic
red-team Repository topic
security Repository topic
cloud-security Repository topic
malware-analysis Repository topic
active-directory Declared skill tag
acl-abuse Declared skill tag
ldap Declared skill tag
privilege-escalation Declared skill tag
engineering Derived category

Files and excerpt

File metadata and permitted, redacted excerpts come from the recorded scan. Source links are pinned to that commit.

Browse files

LICENSEasset · 11,255 bytes
SKILL.mdcore · 4,248 bytes
references/api-reference.mddoc · 2,951 bytes
scripts/agent.pyruns · 9,526 bytes

Read excerpt



# Analyzing Active Directory ACL Abuse

## Overview

Active Directory Access Control Lists (ACLs) define permissions on AD objects through Discretionary Access Control Lists (DACLs) containing Access Control Entries (ACEs). Misconfigured ACEs can grant non-privileged users dangerous permissions such as GenericAll (full control), WriteDACL (modify permissions), WriteOwner (take ownership), and GenericWrite (modify attributes) on sensitive objects like Domain Admins groups, domain controllers, or GPOs.

This skill uses the ldap3 Python library to connect to a Domain Controller, query objects with their nTSecurityDescriptor attribute, parse the binary security descriptor into SDDL (Security Descriptor Definition Language) format, and identify ACEs that grant dangerous permissions to non-administrative principals. These misconfigurations are the basis for ACL-based attack paths discovered by tools like BloodHound.


## When to Use

- When investigating security incidents that require analyzing active directory acl abuse
- When building detection rules or threat hunting queries for this domain