CVE-2024-44146 in macOS
Summary
by MITRE • 09/17/2024
A logic issue was addressed with improved file handling. This issue is fixed in macOS Sequoia 15. An app may be able to break out of its sandbox.
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Analysis
by VulDB Data Team • 09/24/2024
The vulnerability identified as CVE-2024-44146 represents a sandbox escape flaw in macOS Sequoia 15 that stems from inadequate file handling mechanisms within the operating system's security framework. This logic issue enables malicious applications to potentially bypass the sandbox restrictions that are designed to isolate applications from each other and from critical system resources. The sandboxing mechanism serves as a fundamental security control that prevents applications from accessing unauthorized files, system processes, or network resources without explicit permission. When such a flaw exists in the file handling logic, it creates an avenue for attackers to exploit the system's security boundaries and gain elevated privileges or access to restricted areas of the operating system.
The technical nature of this vulnerability places it within the scope of CWE-254, which addresses security weaknesses related to improper handling of file operations and access controls. The flaw specifically manifests when applications attempt to interact with files or directories that should be restricted by sandbox policies, but due to the logic error in file handling, these restrictions can be circumvented. This issue is particularly concerning because it directly undermines the core principle of application isolation that sandboxing is designed to enforce. The vulnerability likely involves improper validation of file paths, insufficient access control checks, or flawed permission handling during file operations that allows an application to traverse or access file system resources beyond its designated boundaries.
From an operational impact perspective, this vulnerability presents significant risks to system security and data integrity. An attacker who successfully exploits this sandbox escape could potentially access sensitive user data, system configuration files, or other applications' data stores that should remain isolated. The implications extend beyond individual application compromise to potentially enable broader system reconnaissance and privilege escalation attacks. The vulnerability affects the fundamental security model of macOS, which relies heavily on sandboxing to protect users from malicious software and prevent lateral movement within the system. This weakness could be leveraged by attackers to establish persistent access, exfiltrate data, or deploy additional malware components that would otherwise be blocked by normal sandbox restrictions.
Mitigation strategies for CVE-2024-44146 should prioritize immediate deployment of the macOS Sequoia 15 update that contains the fix for this issue. Organizations should conduct thorough security assessments to identify any applications that may be vulnerable to exploitation before the patch is applied, particularly focusing on applications that handle sensitive data or have elevated privileges. System administrators should implement monitoring solutions to detect anomalous file access patterns that might indicate exploitation attempts. The fix addresses the root cause by implementing improved file handling mechanisms that properly enforce sandbox boundaries and prevent unauthorized access to restricted resources. Security teams should also consider implementing additional defensive measures such as application whitelisting, enhanced file integrity monitoring, and regular security audits to identify potential exploitation vectors. This vulnerability highlights the importance of continuous security updates and the critical nature of maintaining up-to-date operating system versions to protect against known security flaws that could be exploited by threat actors. The remediation process should include verification that the updated sandboxing mechanisms are properly enforcing access controls and that no applications are experiencing compatibility issues due to the enhanced security restrictions.