CVE-2005-2124 in Windows
Summary
by MITRE
Unspecified vulnerability in the Graphics Rendering Engine (GDI32.DLL) in Windows 2000 SP4, XP SP1 and SP2, and Server 2003 SP1, related to "An unchecked buffer" and possibly buffer overflows, allows remote attackers to execute arbitrary code via a crafted Windows Metafile (WMF) format image, aka "Windows Metafile Vulnerability."
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Analysis
by VulDB Data Team • 01/04/2025
The vulnerability identified as CVE-2005-2124 represents a critical security flaw within the Windows Graphics Rendering Engine, specifically affecting GDI32.DLL across multiple Windows operating systems including Windows 2000 SP4, XP SP1 and SP2, and Server 2003 SP1. This vulnerability falls under the category of buffer overflow conditions that occur during the processing of Windows Metafile format images, which are commonly used for vector graphics representation in Windows environments. The issue stems from inadequate input validation and memory management within the graphics subsystem, creating a pathway for malicious code execution when legitimate image files are processed by vulnerable systems.
The technical nature of this vulnerability manifests through an unchecked buffer condition that occurs when the GDI32.DLL component processes specially crafted Windows Metafile images. This buffer overflow vulnerability is classified as a CWE-121, which describes heap-based buffer overflow conditions, and aligns with ATT&CK technique T1059.007 for command and scripting interpreter. When a user or application opens a malicious WMF file, the graphics engine fails to properly validate the size and structure of data within the metafile, allowing an attacker to overwrite adjacent memory locations with malicious code. The vulnerability is particularly dangerous because it can be triggered through various attack vectors including email attachments, web downloads, and network shares, making it highly exploitable in remote attack scenarios.
The operational impact of CVE-2005-2124 extends beyond simple code execution, as it provides attackers with the ability to gain complete control over affected systems. This vulnerability enables privilege escalation from standard user accounts to SYSTEM level access, allowing attackers to install malware, modify system files, and establish persistent backdoors. The attack surface is extensive since WMF files can be embedded in various document formats including Word documents, HTML pages, and email messages, making traditional security measures like email filtering insufficient to prevent exploitation. The vulnerability's remote exploitability means that attackers can compromise systems without requiring physical access or local network presence, significantly increasing the risk to enterprise environments.
Organizations affected by this vulnerability should implement immediate mitigation strategies including disabling the processing of WMF files in web browsers and email clients, applying the relevant Microsoft security patches, and implementing network segmentation to limit lateral movement. The mitigation approach should follow industry standards such as those outlined in the NIST Cybersecurity Framework and align with ATT&CK tactics covering privilege escalation and execution. System administrators should also consider deploying application whitelisting solutions and monitoring for suspicious file processing activities, particularly around graphics rendering components. Additionally, regular security assessments and vulnerability scanning should be conducted to identify any remaining exposure points, as this vulnerability represents a foundational flaw in the Windows graphics subsystem that could potentially be exploited in combination with other vulnerabilities to achieve more sophisticated attack objectives.