CVE-2023-42943 in macOS
Summary
by MITRE • 07/30/2024
A privacy issue was addressed with improved private data redaction for log entries. This issue is fixed in macOS Sonoma 14. An app may be able to read sensitive location information.
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Analysis
by VulDB Data Team • 08/12/2024
The vulnerability identified as CVE-2023-42943 represents a privacy flaw in macOS Sonoma 14 that stems from inadequate redaction of sensitive location data within log entries. This issue falls under the broader category of information exposure vulnerabilities and aligns with CWE-200, which addresses the improper exposure of sensitive information. The flaw manifests when applications fail to properly redact location-based data that should remain private, potentially allowing unauthorized access to geolocation information that users expect to be protected. This vulnerability specifically impacts the logging mechanisms within the operating system where location data may persist in log files even after standard privacy measures should have been applied. The issue represents a regression in privacy protection mechanisms that were previously implemented to ensure sensitive location information remains confidential during system operations.
The technical implementation of this vulnerability occurs at the system logging layer where location data is collected and stored in log entries without proper sanitization. When applications generate log messages that contain location information, the redaction process fails to adequately obscure this data, leaving it accessible to processes or users who might have access to these log files. This flaw typically occurs when the system's logging infrastructure does not properly distinguish between different types of data within log entries, failing to apply appropriate redaction rules to location-specific fields. The vulnerability can be exploited by malicious applications or processes that gain access to system logs, potentially exposing sensitive location information such as coordinates, addresses, or other geolocation data that users consider private. This type of flaw demonstrates a breakdown in the principle of least privilege and data minimization, where sensitive information flows beyond its intended scope.
The operational impact of CVE-2023-42943 extends beyond simple privacy concerns to encompass potential security risks that could be leveraged by threat actors. When location data remains accessible through log files, it provides attackers with valuable intelligence for social engineering attacks, tracking activities, or planning targeted operations. The vulnerability creates an information leakage channel that could be exploited in conjunction with other techniques to build comprehensive profiles of user activities and movements. This issue particularly affects scenarios where users expect their location data to remain private, such as when using location-based services, traveling, or conducting sensitive business activities. The exposure of location information through log files could enable adversaries to correlate user activities with specific geographic locations, potentially compromising personal safety, business operations, or national security interests. The vulnerability's impact is particularly concerning in enterprise environments where log files may be centrally stored and accessible to multiple system administrators or security personnel.
Mitigation strategies for CVE-2023-42943 require immediate deployment of macOS Sonoma 14 updates that address the improper redaction of location data in log entries. System administrators should implement comprehensive log access controls and monitoring to detect unauthorized access to sensitive log files containing location information. The fix implemented in macOS Sonoma 14 includes enhanced private data redaction mechanisms that properly sanitize location data within log entries, ensuring that sensitive geolocation information is appropriately obscured before storage. Organizations should conduct regular log reviews to identify any remaining instances of unredacted location data and implement automated scanning tools to detect such issues. The remediation process should also include updating application security practices to ensure that location data is properly handled and redacted at the application level before being logged. This vulnerability highlights the importance of continuous security testing and validation of privacy controls, particularly in systems that handle sensitive personal data. Security teams should also consider implementing additional logging controls and access restrictions to minimize the potential impact of similar privacy flaws in other system components. The fix addresses the underlying cause by strengthening the logging infrastructure's ability to properly identify and redact sensitive location information, aligning with security best practices outlined in various cybersecurity frameworks and standards.