CVE-2023-43590 in Rooms
Summary
by MITRE • 11/15/2023
Link following in Zoom Rooms for macOS before version 5.16.0 may allow an authenticated user to conduct an escalation of privilege via local access.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 12/10/2023
The vulnerability identified as CVE-2023-43590 represents a critical privilege escalation flaw within Zoom Rooms for macOS software versions prior to 5.16.0. This security weakness specifically targets authenticated users who possess local access to affected systems, creating a pathway for unauthorized elevation of privileges that could potentially compromise the entire device. The issue stems from improper access controls and privilege management mechanisms within the Zoom Rooms application, which fails to adequately verify user permissions when processing certain link following operations. This vulnerability operates under the broader context of local privilege escalation attacks where attackers exploit legitimate system functions to gain higher-level access rights than initially granted.
The technical implementation of this flaw involves the application's handling of link following mechanisms within its user interface components. When an authenticated user interacts with specific hyperlinks or navigation elements within the Zoom Rooms environment, the system fails to properly validate whether the user possesses sufficient privileges to execute the associated operations. This improper validation creates a condition where local access can be leveraged to bypass normal security boundaries and execute privileged operations. The vulnerability demonstrates characteristics consistent with CWE-276, which addresses improper privilege management, and aligns with ATT&CK technique T1068, which covers local privilege escalation through improper access control mechanisms. The flaw essentially allows a user with standard local access to manipulate application behavior and elevate their privileges to system-level access.
The operational impact of this vulnerability extends beyond simple privilege escalation, potentially enabling attackers to gain full control over affected macOS systems running vulnerable versions of Zoom Rooms. An attacker who successfully exploits this vulnerability could access sensitive system resources, modify application configurations, install malicious software, or exfiltrate confidential data from the compromised device. The localized nature of this attack means that physical access or legitimate local user credentials are required, but once achieved, the consequences can be severe for organizations relying on Zoom Rooms for their video conferencing infrastructure. This vulnerability particularly affects enterprise environments where Zoom Rooms systems are deployed in meeting rooms or collaborative spaces, creating potential attack vectors for both insider threats and external attackers who gain local access through various means.
Organizations should immediately implement mitigation strategies including mandatory updates to Zoom Rooms for macOS to version 5.16.0 or later, which contains the necessary patches to address this privilege escalation vulnerability. System administrators should also enforce strict access controls and monitoring of local user activities on systems running Zoom Rooms, particularly in shared or public environments. Additional protective measures include implementing application whitelisting policies to restrict execution of unauthorized software, conducting regular security audits of Zoom Rooms configurations, and ensuring that only necessary users have local access to affected systems. The vulnerability highlights the importance of maintaining up-to-date software versions and proper access control management within collaborative environments. Security teams should also monitor for any signs of exploitation attempts and consider implementing network-based detection measures to identify anomalous privilege escalation activities that might indicate successful exploitation of this vulnerability.