CVE-2004-1085 in Mac OS X
Summary
by MITRE
human interface toolbox (hitoolbox) for apple mac 0s x 10.3.6 allows local users to exit applications via the force-quit key combination even when the system is running in kiosk mode.
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Analysis
by VulDB Data Team • 06/12/2019
The vulnerability described in CVE-2004-1085 represents a significant security flaw in Apple Mac OS X 10.3.6's Human Interface Toolbox implementation that undermines the fundamental security assumptions of kiosk mode operations. This issue specifically affects the system's ability to maintain restricted user access when applications are running in kiosk mode, which is designed to prevent unauthorized users from accessing system functions or alternative applications. The flaw exists in how the operating system handles the force-quit key combination, which traditionally should be disabled or restricted in kiosk environments where user interaction is limited to specific applications or functions.
The technical nature of this vulnerability stems from the improper implementation of access controls within the Human Interface Toolbox component of Mac OS X. When a system operates in kiosk mode, it should enforce strict limitations on user interaction to prevent unauthorized access to system resources, application switching, or administrative functions. However, the vulnerability allows local users to bypass these restrictions through the standard force-quit key combination, effectively undermining the security posture that kiosk mode is intended to provide. This represents a direct violation of the principle of least privilege and demonstrates a failure in the operating system's security model to properly enforce access restrictions.
From an operational perspective, this vulnerability creates serious security implications for organizations that rely on kiosk mode for controlled access environments such as public terminals, point-of-sale systems, or restricted access workstations. The ability to exit applications through force-quit combinations means that unauthorized users can potentially access the system's desktop environment, launch alternative applications, or perform actions that should be restricted in kiosk configurations. This vulnerability essentially provides a backdoor mechanism that allows users to escape the intended application constraints, effectively nullifying the security benefits of kiosk mode deployment. The impact extends beyond simple unauthorized access to include potential data exposure, system integrity compromise, and violation of organizational security policies.
The vulnerability aligns with CWE-284 (Improper Access Control) and demonstrates how insufficient privilege enforcement can lead to security breaches in operating system components. From an ATT&CK framework perspective, this weakness maps to T1068 (Local Privilege Escalation) and T1548.001 (Abuse Elevation Control Mechanism) where the attacker can leverage the system's access control mechanisms to bypass intended restrictions. Organizations using Mac OS X kiosk deployments should implement immediate mitigations including system updates, manual configuration changes to disable force-quit combinations in kiosk mode, and additional access control measures. The vulnerability highlights the importance of comprehensive security testing for operating system components that handle user interface interactions, particularly in restricted access environments where security boundaries must be strictly enforced. System administrators should also consider implementing additional monitoring and logging mechanisms to detect unauthorized access attempts that may exploit this vulnerability in kiosk configurations.