Configuring Active Directory Tiered Model
Overview
Implement Microsoft's Enhanced Security Admin Environment (ESAE) tiered administration model for Active Directory. Covers Tier 0/1/2 separation, privileged access workstations (PAWs), administrative forest design, authentication policy silos, and credential theft mitigation.
When to Use
Trigger phrases:
"configuring active directory tiered model"
"Implement Microsoft's Enhanced Security Admin Environment (ESAE) tiered administ"
When deploying or configuring configuring active directory tiered model capabilities in your environment
When establishing security controls aligned to compliance requirements
When building or improving security architecture for this domain
When conducting security assessments that require this implementation
Prerequisites
- Familiarity with identity access management concepts and tools
- Access to a test or lab environment for safe execution
- Python 3.8+ with required dependencies installed
- Appropriate authorization for any testing activities
Objectives
- Implement comprehensive configuring active directory tiered model capability
- Establish automated discovery and monitoring processes
- Integrate with enterprise IAM and security tools
- Generate compliance-ready documentation and reports
- Align with NIST 800-53 access control requirements
Security Controls
| Control | NIST 800-53 | Description |
|---|---|---|
| Account Management | AC-2 | Lifecycle management |
| Access Enforcement | AC-3 | Policy-based access control |
| Least Privilege | AC-6 | Minimum necessary permissions |
| Audit Logging | AU-3 | Authentication and access events |
| Identification | IA-2 | User and service identification |
Verification
- Implementation tested in non-production environment
- Security policies configured and enforced
- Audit logging enabled and forwarding to SIEM
- Documentation and runbooks complete
- Compliance evidence generated
When NOT to Use
- You need to implement from scratch (use implementing-* skills)
- Task is about testing the configuration (use performing-* skills)
- You need to analyze misconfigurations (use analyzing-* skills)
- Task is about building automation (use building-* skills)
- You don't have admin access to the system
- Task requires vendor professional services
Red Flags
- Performing actions without explicit written authorization from the asset owner
- Testing against production systems without a defined scope and rules of engagement
- Treating compliance checklists as security guarantees rather than minimum baselines
- Failing to document exceptions and risk acceptance decisions
- Relying on point-in-time audits instead of continuous monitoring
Process
# Example: IOC detection
import re
IOC_PATTERNS = {
"ip": r"\b(?:\d{1,3}\.){3}\d{1,3}\b",
"domain": r"\b[a-z0-9-]+\.[a-z]{2,}\b",
"hash_md5": r"\b[a-f0-9]{32}\b",
"hash_sha256": r"\b[a-f0-9]{64}\b",
}
def extract_iocs(text: str) -> dict:
return {k: re.findall(v, text) for k, v in IOC_PATTERNS.items()}
- Analyze the task requirements
- Apply domain expertise
- Verify output quality
Anti-Rationalization Table
| Rationalization | Reality |
|---|---|
| "We are too small to be targeted" | Automated attacks target everyone. Size does not matter. |
| "Security slows us down" | A breach slows you down 100x more. Build security in from the start. |
| "We will fix it after launch" | Vulnerabilities in production are exploited within hours. Fix before deploy. |