CVE-2002-0974 in Windows
Summary
by MITRE
Help and Support Center for Windows XP allows remote attackers to delete arbitrary files via a link to the hcp: protocol that accesses uplddrvinfo.htm.
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Analysis
by VulDB Data Team • 06/25/2025
The vulnerability identified as CVE-2002-0974 resides within the Help and Support Center component of Microsoft Windows XP operating systems, representing a significant security flaw that enables remote attackers to execute unauthorized file deletion operations. This vulnerability specifically leverages the hcp: protocol handler to access the uplddrvinfo.htm file, which serves as an entry point for malicious file manipulation. The issue stems from inadequate input validation and insufficient access controls within the Windows XP help system architecture, creating a pathway for remote exploitation that bypasses normal file system permissions and security boundaries.
The technical implementation of this vulnerability exploits the Windows Help and Support Center's handling of hypertext help protocol (hcp:) links, which are designed to provide contextual help information within the operating system. When a maliciously crafted hcp: link directs to the uplddrvinfo.htm file, the system processes this request without proper validation of the target file path or user permissions. This allows attackers to manipulate the help system into deleting arbitrary files on the target machine, potentially including critical system files or user data. The vulnerability operates at the application level within the Windows XP operating system, specifically targeting components that handle help file protocols and file system operations.
The operational impact of CVE-2002-0974 extends beyond simple file deletion capabilities, as it represents a privilege escalation vector that can be exploited to compromise entire systems. Attackers can leverage this vulnerability to remove critical system files, disable security features, or create persistent access points through file manipulation. The remote nature of this attack means that exploitation can occur without physical access to the target system, making it particularly dangerous in networked environments. This vulnerability aligns with CWE-22, which describes improper limitation of a pathname to a restricted directory, and represents a classic example of path traversal attacks that have been documented in various security frameworks including the MITRE ATT&CK framework under the technique of privilege escalation through file system manipulation.
Mitigation strategies for this vulnerability require immediate patching through Microsoft security updates, as the official fix addresses the core protocol handling issue within the Help and Support Center component. Organizations should implement network segmentation and access controls to limit exposure to potentially compromised systems, while also monitoring for suspicious hcp: protocol usage in network traffic. Security administrators should consider disabling unnecessary help system components when possible, and implement application whitelisting policies that restrict execution of help protocol handlers. The vulnerability demonstrates the importance of proper input validation and privilege separation in operating system components, and serves as a reminder of the critical need for maintaining up-to-date security patches in enterprise environments. Additionally, user education regarding suspicious links and protocol handlers can provide an additional layer of defense against exploitation attempts.