CVE-2015-0005 in Windows
Summary
by MITRE
The NETLOGON service in Microsoft Windows Server 2003 SP2, Windows Server 2008 SP2 and R2 SP1, and Windows Server 2012 Gold and R2, when a Domain Controller is configured, allows remote attackers to spoof the computer name of a secure channel's endpoint, and obtain sensitive session information, by running a crafted application and leveraging the ability to sniff network traffic, aka "NETLOGON Spoofing Vulnerability."
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Analysis
by VulDB Data Team • 04/15/2022
The CVE-2015-0005 vulnerability represents a critical security flaw in Microsoft Windows Server operating systems that affects the NETLOGON service implementation. This vulnerability specifically targets domain controller configurations where the NETLOGON service is active, creating a pathway for remote attackers to manipulate secure channel communications between domain controllers and member servers. The flaw enables attackers to spoof computer names within the secure channel endpoint, effectively allowing them to masquerade as legitimate domain controller endpoints. The vulnerability stems from insufficient validation of secure channel names during authentication processes, creating opportunities for man-in-the-middle attacks that can compromise the integrity of Windows domain authentication mechanisms. The security implications extend beyond simple name spoofing, as this vulnerability can lead to unauthorized access to sensitive session information and potentially full domain compromise.
The technical root cause of this vulnerability lies in the NETLOGON protocol's failure to properly validate the computer names presented during secure channel establishment. When a domain controller establishes a secure channel with a member server, it should verify that the endpoint computer name matches the expected domain controller identity. However, the implementation in affected Windows Server versions allows attackers to present falsified computer names that bypass these validation checks. The vulnerability specifically requires network traffic sniffing capabilities to observe legitimate authentication exchanges, then leverage this information to construct spoofed responses that appear authentic to the target system. This type of attack falls under the category of credential relay attacks and can be classified as a weakness in authentication protocols according to CWE-287. The vulnerability operates at the network layer where the NETLOGON service communicates, making it particularly dangerous as it can be exploited without requiring direct system access or elevated privileges.
The operational impact of CVE-2015-0005 is severe and far-reaching for organizations relying on Windows domain infrastructure. Successful exploitation can result in complete domain controller compromise, allowing attackers to escalate privileges and gain unauthorized access to sensitive domain resources. The vulnerability enables attackers to obtain session keys and other cryptographic material that can be used to authenticate as domain controllers, potentially leading to complete network infiltration. Organizations may experience unauthorized access to critical systems, data breaches, and disruption of business operations. The vulnerability affects multiple Windows Server versions including Windows Server 2003 SP2, Windows Server 2008 SP2 and R2 SP1, and Windows Server 2012 Gold and R2, representing a substantial portion of enterprise infrastructure that was prevalent during the affected time period. This vulnerability directly impacts the confidentiality, integrity, and availability of domain-based authentication systems and can be categorized under the ATT&CK technique T1550.001 - Use of stolen credentials for lateral movement and privilege escalation.
Mitigation strategies for CVE-2015-0005 should focus on immediate patch deployment as the primary defense mechanism, with Microsoft releasing security updates to address the validation flaw in the NETLOGON service. Organizations should implement network segmentation and monitoring to detect unusual authentication patterns that may indicate spoofing attempts. The deployment of network intrusion detection systems and enhanced monitoring of secure channel communications can help identify exploitation attempts. Additionally, implementing strong network authentication controls, including the use of secure channel encryption and certificate-based authentication, can reduce the attack surface. Security teams should also consider disabling unnecessary NETLOGON service functionality and implementing strict access controls for domain controller communication. The vulnerability demonstrates the importance of proper authentication protocol implementation and the need for continuous security assessment of core infrastructure services. Organizations should conduct thorough vulnerability assessments to identify systems running affected versions and ensure comprehensive patch management processes are in place to prevent similar vulnerabilities from compromising domain security infrastructure.