CVE-2014-8832 in Mac OS X
Summary
by MITRE
The indexing functionality in Spotlight in Apple OS X before 10.10.2 writes memory contents to an external hard drive, which allows local users to obtain sensitive information by reading from this drive.
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Analysis
by VulDB Data Team • 12/16/2024
The vulnerability identified as CVE-2014-8832 represents a critical information disclosure flaw within Apple's Spotlight indexing system affecting macOS versions prior to 10.10.2. This security issue stems from improper memory management during the indexing process where Spotlight inadvertently persists sensitive data from system memory to external storage devices. The flaw manifests when the system performs indexing operations on external hard drives, creating an unintended data persistence mechanism that exposes confidential information to unauthorized local access. This vulnerability falls under the broader category of information exposure weaknesses classified as CWE-200, which encompasses various scenarios where sensitive information is unintentionally made available to unauthorized actors. The technical implementation involves Spotlight's memory handling during file system indexing, where memory contents containing potentially sensitive data are written to external storage without proper sanitization or access controls.
The operational impact of this vulnerability extends beyond simple data leakage, as it creates a persistent vector for information extraction that can be exploited by local attackers with physical access to the affected system. When users connect external storage devices to macOS systems running vulnerable versions, the Spotlight indexing process may inadvertently capture and store memory fragments containing user credentials, application data, system configurations, or other sensitive information. This creates a significant risk for environments where external storage devices are used in shared or unsecured locations, as the vulnerability allows for passive information harvesting without requiring network connectivity or complex attack vectors. The flaw particularly affects scenarios involving mobile computing where users frequently connect external drives for data transfer or backup operations, making the attack surface more extensive than initially apparent.
Security practitioners should recognize this vulnerability as a prime example of how seemingly benign system functionality can create security risks through improper memory handling and data persistence mechanisms. The ATT&CK framework categorizes this issue under T1005 - Data from Local System, where adversaries leverage system features to extract sensitive information from compromised systems. The vulnerability demonstrates the importance of proper memory management in system services and highlights the need for comprehensive security testing of indexing and data processing features. Organizations should prioritize immediate patching of affected systems to prevent exploitation, as the vulnerability requires no special privileges beyond local user access and can be exploited through routine system operations. Additionally, system administrators should implement monitoring for unusual external storage device usage patterns and consider disabling Spotlight indexing on external drives when sensitive data handling is required. The remediation process involves updating to macOS 10.10.2 or later versions where Apple has implemented proper memory sanitization during indexing operations, ensuring that no sensitive data is persisted to external storage devices during normal system operation.