Field guide

Uncovering Active Directory Attack Paths: How Automated Posture Auditing Protects Against Lateral Movement

Active Directory remains the primary target for corporate network compromise. We map how automated, read-only AD auditing exposes delegation gaps and credential risks before hackers exploit them.

AssurePort engineering team 7 min read

The primary vector: Active Directory in corporate cyberattacks

Active Directory (AD) manages the identities, permissions, and computers in 90% of global enterprise environments. Because of its scale and complexity, AD configurations naturally drift over time. This configuration drift creates hidden relationships, over-privileged Service Principal Names (SPNs), and weak access control list (ACL) delegations. During a breach, lateral movement often leverages these AD flaws to pivot from a low-privilege employee workstation to a Domain Controller (DC) in hours.

Key AD vulnerabilities targeted by lateral attacks

  • Kerberoasting: Legitimate domain users request Kerberos ticket-granting service (TGS) tickets for any service account with an SPN. Attackers extract these tickets from memory and crack the service account passwords offline.
  • AS-REP Roasting: Identifies accounts that do not require Kerberos pre-authentication, enabling attackers to grab the AS-REP response package and brute-force the account password offline.
  • ACL & Delegation Gaps: Over-permissive ACL settings (e.g., GenericWrite, WriteDacl, or WriteOwner) on high-value group or user objects allow attackers to take control of domains without raising alarms.
  • Group Policy Object (GPO) Misconfigurations: Weak GPO permissions allow adversaries to modify policies, resulting in code execution or authorization changes across hundreds of client devices.

A modern alternative: Automated, non-destructive AD auditing

Historically, AD assessments required installing local agent binaries or executing invasive, resource-heavy scanning tools. Active exploitation tools like Mimikatz or BloodHound, while effective, can trigger operational risks or operational outages if configured aggressively in production domains.

AssurePort AD Security Assessment approaches auditing differently. It operates strictly as a **read-only, non-destructive agent**. By querying the domain catalog passively via LDAP and reading Group Policies without writing or injecting memory payloads, AssurePort builds a complete attack-path graph. It maps every security relationship, Kerberoasting exposure, and delegation pathway safely in under 20 minutes.

Remediation priority: Identifying AD vulnerabilities is only half the battle. AssurePort triages finding severity based on CVSS scoring and provides remediation steps, such as setting up Group Managed Service Accounts (gMSA), enabling AES encryption, and hardening Delegation parameters.