Use After Free in Windows Error Reporting Allows Local Privilege Escalation

Executive Summary

This is a use after free vulnerability in Windows Error Reporting. An authorized attacker can exploit it to elevate their privileges locally on affected systems.

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Detection Guidance

Detection of this vulnerability typically requires monitoring for unusual privilege escalation events or crashes in Windows Error Reporting. Check system logs for application crashes related to WerFault.exe or Windows Error Reporting services. Use Event Viewer to inspect Security and System logs for anomalies.

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Impact Analysis

An attacker with local access could exploit this to gain higher privileges, potentially allowing them to install programs, view or delete data, or create new accounts with full user rights.

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Compliance Impact

This vulnerability allows local privilege escalation through a use-after-free flaw in Windows Error Reporting. While not directly impacting data protection standards like GDPR or HIPAA, unauthorized privilege escalation could lead to unauthorized access to sensitive data, potentially violating compliance requirements for data confidentiality and integrity.

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Mitigation Strategies

Apply the latest Windows updates from Microsoft Update to patch the Windows Error Reporting use-after-free vulnerability. Monitor Microsoft's security advisories for patches and install them promptly.

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