CVE-2005-3176 in Windows
Summary
by MITRE
Microsoft Windows 2000 before Update Rollup 1 for SP4 does not record the IP address of a Windows Terminal Services client in a security log event if the client connects successfully, which could make it easier for attackers to escape detection.
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Analysis
by VulDB Data Team • 04/14/2019
This vulnerability exists in Microsoft Windows 2000 operating systems prior to Update Rollup 1 for Service Pack 4, specifically affecting Windows Terminal Services functionality. The flaw represents a significant logging deficiency that undermines security monitoring capabilities for remote access sessions. When legitimate Windows Terminal Services clients establish successful connections to affected systems, the IP address information fails to be recorded in the security event logs, creating a critical gap in audit trails that adversaries can exploit for persistent access and evasion.
The technical implementation of this vulnerability stems from incomplete event logging mechanisms within the Windows Terminal Services component. Under normal circumstances, successful authentication and connection events should capture and store the originating IP address as part of the security audit trail. However, in the affected Windows 2000 configurations, this IP address information is omitted from the generated security log entries despite successful client connections. This omission occurs specifically during the successful authentication phase of Terminal Services sessions, where the system should be capturing comprehensive connection metadata for forensic analysis.
The operational impact of this vulnerability extends beyond simple logging deficiencies to create substantial security risks for organizations relying on Windows 2000 systems for remote access. Attackers can leverage this weakness to conduct prolonged reconnaissance and exploitation activities without leaving detectable traces in the security logs, making it significantly harder for security operations teams to identify unauthorized access attempts or track attacker movement within the network. This vulnerability particularly affects environments where Terminal Services is actively used for remote administration, as it eliminates a crucial forensic capability for tracking connection sources and identifying potential malicious activity.
From a cybersecurity perspective, this vulnerability aligns with CWE-778 (Insufficient Logging) and represents a critical weakness in the security logging infrastructure that directly impacts the ability to perform effective incident response and threat hunting activities. The missing IP address information creates a gap that adversaries can exploit to establish persistent access while remaining undetected, as security monitoring systems cannot correlate successful connections to specific source addresses. Organizations utilizing Windows 2000 systems without the appropriate update rollup are particularly vulnerable to this issue, as the flaw exists in the core authentication and logging mechanisms of the Terminal Services implementation.
The remediation approach for this vulnerability requires immediate deployment of Update Rollup 1 for Service Pack 4 on all affected Windows 2000 systems. This update addresses the underlying logging mechanism to ensure that successful Terminal Services connections properly record the originating IP address information in security event logs. Security administrators should also implement additional monitoring controls and network-level logging to compensate for the missing information until the patch is fully deployed across all systems. Organizations should conduct comprehensive vulnerability assessments to identify all Windows 2000 systems that may be running Terminal Services and ensure proper patch management procedures are in place to prevent similar issues from occurring in other system components. The vulnerability demonstrates the critical importance of maintaining up-to-date security patches and proper logging configurations as fundamental defense-in-depth measures against sophisticated threat actors.