CVE-2023-32441 in macOS
Summary
by MITRE • 07/27/2023
The issue was addressed with improved memory handling. This issue is fixed in macOS Monterey 12.6.8, iOS 15.7.8 and iPadOS 15.7.8, iOS 16.6 and iPadOS 16.6, tvOS 16.6, macOS Big Sur 11.7.9, macOS Ventura 13.5, watchOS 9.6. An app may be able to execute arbitrary code with kernel privileges.
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Analysis
by VulDB Data Team • 08/18/2023
This vulnerability represents a critical kernel-level memory handling flaw that could potentially allow malicious applications to execute arbitrary code with elevated privileges. The issue stems from inadequate memory management practices within the operating system kernel, creating potential attack vectors for privilege escalation. The vulnerability affects multiple Apple operating systems including macOS Monterey, iOS, iPadOS, tvOS, and watchOS across various versions, indicating a widespread impact across the Apple ecosystem. The flaw specifically relates to how the system handles memory allocation and deallocation processes, potentially allowing an attacker to manipulate kernel memory structures through carefully crafted applications.
The technical nature of this vulnerability aligns with common kernel exploitation patterns that leverage memory corruption issues to gain unauthorized access to system-level resources. According to CWE classification systems, this represents a memory safety issue that could manifest as a buffer overflow, use-after-free condition, or similar memory management error. The vulnerability's exploitation requires an app to be installed on the target system, making it a client-side privilege escalation vector that could be leveraged through malicious applications distributed via the app store or other attack vectors. The fix implemented by Apple addresses the underlying memory handling mechanisms to prevent unauthorized kernel memory manipulation.
The operational impact of this vulnerability is severe as it enables attackers to achieve kernel-level privileges, which would provide complete system control including access to all user data, ability to install malicious software, modify system files, and potentially exfiltrate sensitive information. This type of privilege escalation vulnerability represents a significant threat to device security and user privacy, as it allows attackers to bypass normal security boundaries that separate user applications from system-level processes. The vulnerability affects a broad range of Apple devices including iPhones, iPads, Mac computers, Apple Watches, and Apple TVs, making it particularly concerning from a threat landscape perspective.
Mitigation strategies should include immediate deployment of the security updates provided by Apple, which address the specific memory handling issues in the affected operating system versions. Organizations should implement comprehensive patch management procedures to ensure all affected devices receive the necessary updates. The vulnerability demonstrates the importance of maintaining up-to-date operating systems and following vendor security advisories. Additionally, security monitoring should be implemented to detect any suspicious application behavior that might indicate exploitation attempts. From an ATT&CK framework perspective, this vulnerability maps to privilege escalation techniques and could be leveraged as part of broader attack chains targeting Apple devices. Network administrators should consider implementing device isolation policies and monitoring for unusual system behavior that might indicate successful exploitation. The vulnerability underscores the critical need for continuous security assessment and proactive vulnerability management across all operating system platforms.