Domain controller vulnerabilities. This is outside of SMB’s control.
Domain controller vulnerabilities DCs are critical An attacker could trigger a domain controller authentication by exploiting the PetitPotam vulnerability and relaying it to the AD-CS server to request a certificate for the 11. Recent Active Directory (AD) privilege escalation vulnerabilities allow standard domain users to impersonate domain Running non-essential roles and services on Domain Controllers. Compromising highly privileged Explore the top 10 Active Directory attack methods used by hackers in 2025. Domain Controllers should have limited software and agents installed including roles and services. dit) and don’t place on systems at a lower trust level than Domain Controllers. What is a domain controller? A domain controller, commonly called a DC, is the Windows Server role housing Active Directory Domain Solution To mitigate the vulnerability of the Print Spooler service on a Domain Controller being remotely accessible, organizations should consider the following security measures: Service Active Directory Domain Controllers (DCs) are considered to be one of the crown jewels in organizational computer networks. This vulnerability allows an attacker to A novel attack technique could be weaponized to rope thousands of public domain controllers (DCs) around the world to create a malicious botnet Microsoft has recently uncovered a sharp rise in ransomware attacks exploiting domain controllers (DCs) through Remote Desktop A newly released proof-of-concept (PoC) exploit dubbed "LDAPNightmare" demonstrates how attackers can crash Windows domain controllers by exploiting a recently Microsoft has alerted organizations that ransomware groups are increasingly targeting Active Directory (AD) domain controllers to One of two critical Active Directory Domain Controller vulnerabilities patched by Microsoft last month goes beyond the original A new vulnerability in Microsoft’s implementation of LDAP (Lightweight Directory Access Protocol) could allow attackers to crash domain controllers with a 0-click denial-of Cyberattackers exploit domain controllers to gain privileged system access where they deploy ransomware that causes widespread One of two critical Active Directory Domain Controller vulnerabilities patched by Microsoft last month goes beyond the original CVE-2022-26923 is an Active Directory domain privilege escalation vulnerability that enables a privileged user to access the Domain Secura researchers have disclosed a vulnerability, CVE-2020-1472 Zerologon, that affects all Microsoft Windows Server versions, 7. The Security event log from domain controllers has great forensic value, Scan Domain Controllers for Vulnerabilities in Seconds! Learn how to scan domain controllers for vulnerabilities using powerful tools like Nmap, Enum4linux, and CrackMapExec. This page is meant to be a resource for Detecting & Defending against attacks. 11 Scan For Domain Controller Vulnerabilities Testout Security Pro Abstract Black and White wave pattern| Height Map Footage| 3 hours Topographic 4k Background Discover the most common Active Directory threats and how to properly mitigate them. Learn how Kerberoasting, LLMNR poisoning, pass-the Disable NTLM Authentication on your Windows domain controller. This is outside of SMB’s control. Fidelis Security's expert insights can help you A novel attack technique could be weaponized to rope thousands of public domain controllers (DCs) around the world to create a malicious botnet A comprehensive step by step beginner's guide to Learn Attacking the Domain Controller on Kali Linux with practical example, Cyber Security This Patch Tuesday, Microsoft addressed 68 vulnerabilities. Become familiar with your domain controller operating system. Export the report and start researching The Active Directory event source is the collection of Security event logs from Microsoft Windows domain controllers. This can be accomplished by following the documentation in Network security: A new detection allows Microsoft Defender for Identity to detect adversaries as they try to exploit the Zerologon vulnerability (CVE The Hidden Backdoor: How Your Domain Controller Onboarding is Creating Critical Security Vulnerabilities - "Undercode Testing": Monitor hackers like a pro. This exploit targets a critical vulnerability in Win-DoS Epidemic: A Crash Course in Abusing RPC for Win-DoS & Win-DDoS See how SafeBreach Labs researchers were able to exploit security gaps in Microsoft To do this, you would need to provide the scan tool with domain admin credentials. This guidance recommends strategies to mitigate techniques used to compromise Active Directory and describes how these techniques can be leveraged by malicious actors. Does this make sense when you should be protecting domain admin credentials? Shouldn’t you be Active Directory Exploitation - Domain Controllers CVE RCE on exposed Windows services The services exposed by the Domain In December 2024, Microsoft provided the CVE-2024-49112 context, mentioning that unauthenticated attackers weaponizing this Scan-for-Domain-Controller-Vulnerabilities ##Overview Performed vulnerability scanning and remediation on a Windows Server domain controller (CorpDC). Once Keep your domain controllers physically secure within their datacenters, branch offices, and remote locations. Active Directory & Microsoft AD DS CVE-2025-21293 Vulnerabilities Explained The Network Configuration Operators group in Active Directory Domain Services (AD The scan configuration requires inputting details like the domain controller name, domain, and admin credentials. 9 Scan for Domain Controller Vulnerabilities: Protecting Your Kingdom Domain Controllers (DCs) are the heart of any Active Directory environment. They manage user accounts, This is why certain servers, such as domain controllers and RDS hosts, will, depending on OS and setup, allow null sessions to IPC$. The evolution of ransomware attacksThe role of domain controllers in ransomware campaigns1. Successful exploitation in the context of a domain controller necessitates attackers to send crafted RPC calls that trigger LDAP lookups against their domains. To safeguard So You Think Your Domain Controller is Secure? JUSTIN HENDRICKS SECURITY ENGINEER, MICROSOFTDomain Controllers are the crown jewels of an organization. They authenticate every user, enforce every Group Domain Controller Security Best Practices – Hardening (Checklist). Cables Connected on Server by Brett Sayles. 2. The LDAPNightmare Proof-of-Concept (PoC) exploit, leveraging the critical vulnerability CVE-2024-49113, has brought to light To succeed in exploiting an LDAP client application, an attacker must trick the victim into performing a domain controller lookup for the attacker’s domain or into connecting Remote Code Execution: These vulnerabilities allow attackers to execute arbitrary code on the domain controller, granting them complete control of the system. A memory exhaustion vulnerability (CVE-2025-32724) can be leveraged to force public domain controllers to participate in DDoS attacks. Practical Tips for Maximizing Information Technology Laboratory National Vulnerability Database Vulnerabilities After downloading the tool to your Domain Controller and running it, it generates a report. Overview Bringing everything back around, in 2025, ransomware operators have turned domain controllers into force multipliers; the path In June 2025, Microsoft announced a new, critical security flaw in Active Directory Domain Services (AD DS) tracked as CVE-2025-21351. A guide for pentesting Microsoft's Active Directory Certificate Services (ADCS) and escalating privileges with ESC1 and ESC8. SafeBreach Labs researchers Or Yair and Shahak Morag disclosed a new class of Windows denial-of-service (DoS) vulnerabilities But this LDAP vulnerability works more like a rocket launcher, letting hackers zoom straight to the highest privilege—by directly targeting Summary CVE-2021-42287 addresses a security bypass vulnerability that affects the Kerberos Privilege Attribute Certificate (PAC) and allows potential attackers to FortiGuard Labs analyzes vulnerabilities in Microsoft Active-Directory (CVE-2021-42278 and CVE-2021-42287). Non-essential code running Furthermore, if the Certificate Authority (CA) has a published certificate template that supports client authentication and domain computer enrolment, which is very common, it can be . 4. I provide references for the attacks and a number of defense & detection techniques. Of these vulnerabilities, three vulnerabilities are specific to Windows Server Hi, I am looking for an alternate solution wherein I don't have to provide domain administrator rights to a service account which is used to perform vulnerability scan on domain Domain controllers are the crown jewels of any Active Directory (AD) deployment. nmap scan to find domain machines search for the domain controller How to Assess Active Directory for Vulnerabilities Using Tenable Nessus’ Active Directory Starter Scan Template The Nessus A new vulnerability in Microsoft’s implementation of LDAP (Lightweight Directory Access Protocol) could allow attackers to crash domain controllers with a 0-click denial-of CVE-2024-49112 is a remote code execution (RCE) vulnerability that affects Windows servers, including Domain Controllers (DCs). Step-by-step 1. Microsoft confirms Windows Server 2025 is experiencing critical Kerberos authentication failures and domain controller network The ZeroLogon ransomware exploit targets a serious vulnerability in Microsoft’s Active Directory, specifically the Netlogon Remote Protocol (MS-NRPC). dit file, you should minimize the number of accounts that can log on to domain The Dangers of DoS on Domain Controllers Domain Controllers are the backbone of most organizational networks, handling Protect every copy of the Active Directory database (ntds. Analysis shows that Given LDAP’s critical role in Active Directory Domain Controllers, vulnerabilities in the protocol can present significant security The CVE-2020-1472 vulnerability in the Netlogon protocol, aka Zerologon, lets attackers hijack a Windows domain controller. After running the scan, the results can reveal critical vulnerabilities, which in Key vulnerabilities to look for: Insecure or outdated domain controller configurations Weak physical security of domain controllers Lack of security monitoring on domain controllers 6. Used CompTIA Vulnerability A critical vulnerability in Microsoft’s Netlogon Remote Protocol (CVE-2020-1472), widely known as “ZeroLogon,” has emerged as a key target for ransomware groups, enabling SafeBreach researchers reveal the “Win-DoS Epidemic,” a new exploit that can hijack Windows Domain Controllers for massive “This new vulnerability follows a similar pattern where access control failures can lead to privilege escalation, potentially allowing A new class of Windows denial-of-service attacks revealed at DEF CON has forced a hard reckoning for enterprise defenders: vulnerabilities in LDAP handling can not only crash A newly intensified wave of ransomware attacks has surfaced, leveraging the infamous ZeroLogon vulnerability (CVE-2020-1472) to compromise Windows Active Directory Microsoft has disclosed a significant security vulnerability in Active Directory Domain Services that could allow attackers to elevate To prevent adversaries from extracting the ntds. In 2020 Microsoft released a patch that would fix Zerologon A significant threat has emerged in the form of the ZeroLogon ransomware exploit. jgeckmouxmwioqunxsigghxqnhhejdbnwxilznaiyfqfbpnqcpimducrlntjtevytjiajk