CVE-2024-40830 in iOS
Summary
by MITRE • 09/17/2024
This issue was addressed with improved data protection. This issue is fixed in iOS 18 and iPadOS 18. An app may be able to enumerate a user's installed apps.
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Analysis
by VulDB Data Team • 09/23/2024
This vulnerability represents a significant privacy and security concern within Apple's mobile operating systems, specifically affecting versions prior to iOS 18 and iPadOS 18. The issue stems from insufficient data protection mechanisms that allow malicious applications to enumerate or discover the list of installed applications on a user's device. Such enumeration capabilities can provide attackers with valuable reconnaissance information that may be leveraged for further exploitation. The vulnerability exists at the system level where proper access controls and data isolation mechanisms are not adequately enforced between applications and the underlying operating system. This flaw enables an attacker to gather information about the target device's application ecosystem without proper authorization, potentially revealing sensitive details about user behavior and system configuration.
The technical implementation of this vulnerability likely involves improper sandboxing mechanisms or insufficient privilege separation between applications and system services. When an app attempts to access information about other installed applications, the system should enforce strict access controls and authorization checks. However, in this case, the system fails to properly validate or restrict such queries, allowing unauthorized applications to obtain this sensitive information. The flaw may be related to improper implementation of application enumeration APIs or insufficient validation of application permissions. This type of vulnerability can be categorized under CWE-200, which deals with exposure of sensitive information to an unauthorized actor, and potentially CWE-264, which addresses permissions, privileges, and access controls. The vulnerability directly impacts the principle of least privilege and can be classified as a privilege escalation issue within the application sandboxing model.
The operational impact of this vulnerability extends beyond simple information disclosure, as it can serve as a foundational element for more sophisticated attacks. An attacker who successfully enumerates installed applications can identify potential targets for social engineering attacks, exploit specific application vulnerabilities, or determine the user's digital footprint and habits. This information can be particularly valuable for attackers planning targeted attacks against specific applications or for conducting reconnaissance for privilege escalation attacks. The ability to enumerate applications provides insight into the user's software environment, potentially revealing the presence of security tools, productivity applications, or other software that might contain additional vulnerabilities. From an adversarial perspective, this vulnerability aligns with techniques described in the ATT&CK framework under T1518, which covers 'Software Discovery,' and T1082, which deals with 'System Information Discovery.' The vulnerability essentially undermines the security boundary between applications and the operating system, potentially enabling more advanced attack vectors.
The mitigation for this vulnerability requires the implementation of proper access controls and data protection mechanisms within the operating system. Apple's fix in iOS 18 and iPadOS 18 addresses the root cause by strengthening the application sandboxing model and enforcing stricter access controls for application enumeration requests. Users should immediately update to the latest operating system versions to protect against exploitation of this vulnerability. Organizations should also ensure that their mobile device management policies include mandatory operating system updates and regular security assessments. The fix likely involves enhanced validation of application permissions, stricter enforcement of sandbox boundaries, and improved access control mechanisms for system-level information. Security teams should monitor for any potential exploitation attempts related to this vulnerability and consider implementing additional network monitoring to detect suspicious application behavior that might indicate exploitation attempts. The vulnerability demonstrates the importance of maintaining up-to-date security patches and the critical need for robust application isolation mechanisms in mobile operating systems.