CVE-2025-5995 in EOS Webcam Utility Pro
Summary
by MITRE • 06/26/2025
Canon EOS Webcam Utility Pro for MAC OS version 2.3d (2.3.29) and earlier contains an improper directory permissions vulnerability. Exploitation of this vulnerability requires administrator access by a malicious user. An attacker could modify the directory, potentially resulting in code execution and ultimately leading to privilege escalation.
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Analysis
by VulDB Data Team • 06/30/2025
The Canon EOS Webcam Utility Pro for macOS represents a specialized software solution designed to enable users to utilize Canon digital cameras as webcams within macOS environments. This utility operates as a system-level application that interfaces with the operating system's camera subsystem and provides enhanced video conferencing capabilities for users leveraging Canon imaging hardware. The software's architecture necessitates elevated privileges to function properly, particularly when establishing connections with system-level camera drivers and managing hardware interfaces. The vulnerability under examination affects version 2.3d and earlier releases of this utility, indicating a specific regression or oversight in the software's permission handling mechanisms that has persisted across multiple iterations.
The technical flaw manifests as an improper directory permissions vulnerability within the Canon EOS Webcam Utility Pro installation structure. This weakness occurs when the application creates or modifies directory permissions during its installation or operational phases, failing to properly enforce appropriate access controls. The vulnerability specifically relates to how the utility manages file system permissions for its operational directories, allowing for potential unauthorized modifications that should be restricted to legitimate system processes or administrators. This misconfiguration creates a path where an attacker with administrative privileges can manipulate the directory structure, potentially compromising the integrity of the software's operational environment. The vulnerability aligns with CWE-732: Incorrect Permission Assignment for Critical Resource, which addresses the improper assignment of permissions that can lead to unauthorized access to system resources. The flaw represents a critical oversight in the application's privilege management and file system access control implementation.
The operational impact of this vulnerability extends beyond simple directory modification capabilities, creating a potential pathway for privilege escalation attacks within the macOS environment. While exploitation requires administrator access by a malicious user, the vulnerability's presence means that any attacker who has already achieved administrative privileges can leverage this weakness to modify critical application components. This modification capability could enable code execution through various vectors including but not limited to replacing legitimate executable files with malicious payloads, modifying configuration files to redirect application behavior, or injecting malicious code into the utility's operational memory space. The attack surface becomes particularly concerning when considering that the webcam utility operates with elevated privileges and maintains access to camera hardware interfaces, potentially allowing for more sophisticated attacks including persistent backdoor installation or data exfiltration through the camera subsystem. This vulnerability directly impacts the principle of least privilege and can be categorized under ATT&CK technique T1068: Exploitation for Privilege Escalation, where adversaries exploit software vulnerabilities to gain elevated system access.
Mitigation strategies for this vulnerability require a multi-layered approach focusing on both immediate remediation and long-term security hardening measures. The most effective immediate solution involves updating to the latest available version of the Canon EOS Webcam Utility Pro, which should contain the necessary permission fixes and security patches. System administrators should implement strict software update policies to ensure all instances of this utility are maintained at current security levels. Additionally, implementing proper file system monitoring and integrity checking mechanisms can help detect unauthorized modifications to the application directories. The security posture should include regular vulnerability assessments of third-party applications, particularly those operating with elevated privileges or system-level access. Organizations should also consider implementing application whitelisting policies that restrict execution of unauthorized modifications to critical system directories. The vulnerability highlights the importance of proper permission management during software installation and operation, emphasizing the need for developers to implement secure coding practices that properly enforce access controls and privilege boundaries. System-level monitoring should be enhanced to detect anomalous directory modification patterns that could indicate exploitation attempts.