TOCTOU Race Condition in Windows Win32 Kernel Subsystem

Executive Summary

This is a time-of-check time-of-use (TOCTOU) race condition in the Windows Win32 Kernel Subsystem. It allows an authorized attacker to exploit timing differences in system operations to disclose information locally.

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Detection Guidance

This vulnerability is a local information disclosure issue in the Windows Win32 Kernel Subsystem. Detection typically requires monitoring for unusual local privilege escalation or information access patterns. Use Windows Event Viewer to check for suspicious kernel-level events or unauthorized access attempts. No specific public commands are provided in the available resources.

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Impact Analysis

An attacker with local access could exploit this flaw to read sensitive information from the system, potentially leading to unauthorized data exposure or further attacks.

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Compliance Impact

This vulnerability allows local information disclosure due to a race condition in the Windows Win32 Kernel Subsystem. It may impact compliance with GDPR by potentially exposing personal data and HIPAA by risking unauthorized access to protected health information if exploited.

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Mitigation Strategies

Apply the latest Windows security updates from Microsoft Update as soon as they become available. Enable automatic updates to ensure timely patching. Monitor Microsoft's security advisories for specific guidance on this CVE.

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