All news with #active directory tag

Kerberoasting in 2025: Protecting Service Accounts

🔒 Kerberoasting remains a persistent threat to Active Directory environments, enabling attackers to request service tickets for SPNs and crack their password hashes offline to escalate privileges. Adversaries use freely available tools like GetUserSPNs.py and Rubeus to extract tickets tied to service accounts, then perform offline brute-force attacks against the ticket encryption. Mitigations recommended include regular AD password audits, using gMSAs with auto-managed long passwords, preferring AES over RC4, enforcing non-reusable 25+ character passwords with rotation, and deploying MFA and robust password policies.

Active Directory Under Siege: Risks in Hybrid Environments

🔐 Active Directory remains the critical authentication backbone for most enterprises, and its growing complexity across on‑premises and cloud hybrids has expanded attackers' opportunities. The article highlights common AD techniques — Golden Ticket, DCSync, and Kerberoasting — and frequent vulnerabilities such as weak and reused passwords, lingering service accounts, and poor visibility. It recommends layered defenses: strong password hygiene, privileged access management, zero‑trust conditional access, continuous monitoring, and rapid patching. The piece stresses that AD security is continuous and highlights solutions that block compromised credentials in real time.

Amazon FSx Integrates with AWS Secrets Manager for AD

🔒 Amazon FSx now integrates with AWS Secrets Manager to store and manage Active Directory domain service account credentials for FSx for Windows File Server and FSx for NetApp ONTAP Storage Virtual Machines (SVMs). This removes the need to supply plain-text service account usernames and passwords in the console, APIs, CLI, or CloudFormation, and enables credential rotation and improved credential hygiene. The capability is available in all AWS Regions where FSx is offered.

Cut IT Costs with Secure Self-Service Password Resets

🔐 Self-service password reset (SSPR) can significantly cut help desk costs and reduce downtime by letting users securely change forgotten or expired credentials without contacting support. Industry research cited in the article highlights that password-related calls are common and expensive — Gartner and Forrester figures are referenced and a Specops analysis reports average savings per user. The piece outlines security best practices including tiered risk controls, MFA, enrollment hygiene, and detection measures like rate limiting and location checks. It describes Specops uReset capabilities for Entra ID and Active Directory, automated enrollment, reporting, and a First Day Password add-on to reduce onboarding friction.

September 2025 Windows Server Updates Break AD Sync

⚠️ Microsoft confirmed that the September 2025 security updates are causing Active Directory synchronization problems on Windows Server 2025, affecting applications that use the DirSync control such as Microsoft Entra Connect Sync. The issue can result in incomplete synchronization of large AD security groups exceeding 10,000 members. Microsoft recommends a registry workaround (DWORD 2362988687 = 0) while engineers work on a fix, and warns about risks of editing the registry.

Amazon RDS for SQL Server: Kerberos via Self-Managed AD

🔐 Amazon Relational Database Service (RDS) for SQL Server now supports Kerberos authentication when instances are joined to a self-managed Microsoft Active Directory. Previously, Kerberos integration required AWS Managed Microsoft AD; customers can now enable Kerberos authentication with their existing on-premises or self-managed AD environments. This change simplifies migrations and preserves enterprise identity configurations while continuing to support existing integrations with AWS Managed AD. The feature is available in all AWS Commercial and AWS GovCloud (US) Regions.

BadSuccessor: dMSA Privilege Escalation in Windows Server

🔒 Unit 42 details BadSuccessor, a critical post-Windows Server 2025 attack vector that abuses delegated Managed Service Accounts (dMSAs) to escalate privileges in Active Directory. The write-up explains how attackers who can create or modify dMSAs may set msDS-ManagedAccountPrecededByLink and msDS-DelegatedMSAState to impersonate superseded accounts and obtain elevated rights. It provides practical detection guidance using Windows Security auditing and offers hunting queries and mitigation recommendations. Palo Alto Networks solutions such as Cortex XDR and XSIAM are highlighted as able to detect this activity when auditing is enabled.