CVE-2000-0737 in Windows
Summary
by MITRE
The Service Control Manager (SCM) in Windows 2000 creates predictable named pipes, which allows a local user with console access to gain administrator privileges, aka the "Service Control Manager Named Pipe Impersonation" vulnerability.
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Analysis
by VulDB Data Team • 03/31/2025
The vulnerability identified as CVE-2000-0737 represents a critical privilege escalation flaw within the Windows 2000 Service Control Manager component that fundamentally undermines system security through predictable named pipe exploitation. This vulnerability specifically affects the Windows 2000 operating system and stems from the Service Control Manager's improper handling of named pipe creation processes, creating a pathway for local users with console access to elevate their privileges to administrator level. The flaw exploits the predictable naming conventions used by the SCM when creating named pipes, which are essential for service management communication between the service control manager and service processes.
The technical implementation of this vulnerability relies on the predictable nature of named pipe identifiers used by the Windows 2000 Service Control Manager, which follows a deterministic pattern that can be easily enumerated by local attackers. When a local user with console access attempts to interact with the service control manager, the system creates named pipes with predictable names that follow a specific format based on the service control manager's internal implementation. Attackers can exploit this predictability by creating their own named pipes with the same predictable names before the legitimate service control manager attempts to use them, effectively intercepting the communication and impersonating the service control manager process. This impersonation allows the attacker to execute arbitrary code with elevated privileges, as the service control manager process runs with administrator privileges.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it provides attackers with complete administrative control over the compromised Windows 2000 system, enabling them to modify system files, install malicious software, access sensitive data, and potentially establish persistent backdoors. The vulnerability is particularly dangerous because it requires only local console access, which is often readily available in many corporate environments where users have legitimate console access to their workstations. This means that a user with basic access rights could potentially compromise an entire system and gain access to network resources that would otherwise be protected by proper authentication mechanisms. The attack vector is particularly concerning because it can be executed without network connectivity requirements and does not require specialized tools beyond standard local system access.
This vulnerability aligns with CWE-264, which covers permissions, privileges, and access control issues, specifically addressing improper privileges in service management components. The attack pattern corresponds to techniques described in the MITRE ATT&CK framework under privilege escalation tactics, particularly focusing on service manipulation and process injection methods. The vulnerability demonstrates a classic case of insufficient randomization in system resource naming, which falls under the broader category of predictable resource handling that can lead to privilege escalation attacks. Organizations running Windows 2000 systems were particularly vulnerable to this attack as the operating system lacked proper randomization mechanisms in its named pipe creation process, making it susceptible to race condition exploitation.
The recommended mitigations for this vulnerability include immediate application of Microsoft security patches that address the predictable named pipe creation behavior in the Service Control Manager, along with implementing proper access controls and monitoring for unauthorized named pipe creation activities. System administrators should also consider implementing additional security measures such as disabling unnecessary services, restricting local console access to authorized personnel only, and monitoring for suspicious named pipe activity that could indicate exploitation attempts. The vulnerability highlights the importance of proper randomization in system resource allocation and demonstrates why predictable naming schemes in security-critical components should be avoided. Organizations should also implement comprehensive security monitoring to detect potential exploitation attempts and establish incident response procedures specifically addressing privilege escalation vulnerabilities in legacy systems.