CVE-2022-28752 in Rooms for Conference Rooms
Summary
by MITRE • 08/18/2022
Zoom Rooms for Conference Rooms for Windows versions before 5.11.0 are susceptible to a Local Privilege Escalation vulnerability. A local low-privileged malicious user could exploit this vulnerability to escalate their privileges to the SYSTEM user.
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Analysis
by VulDB Data Team • 09/18/2022
The vulnerability identified as CVE-2022-28752 represents a critical local privilege escalation flaw within Zoom Rooms for Conference Rooms software on Windows platforms. This vulnerability affects versions prior to 5.11.0 and poses significant security risks to organizations that deploy this video conferencing solution in their conference rooms. The flaw allows a local attacker with low-privileged user access to elevate their privileges to the SYSTEM level, which provides complete control over the affected system. The implications of such a vulnerability are severe as it enables attackers to bypass normal access controls and potentially gain unrestricted access to sensitive organizational data, system resources, and network infrastructure.
The technical nature of this privilege escalation vulnerability stems from improper access control mechanisms within the Zoom Rooms application. When a malicious user with standard user privileges executes crafted code or exploits a weakness in the application's privilege handling, they can manipulate the system to grant themselves elevated privileges. This typically occurs through flaws in how the application manages user sessions, process execution, or system resource access. The vulnerability may involve insecure coding practices such as improper privilege checks, unsafe file operations, or inadequate validation of user inputs that allow privilege elevation. According to CWE classification, this vulnerability likely maps to CWE-276, which covers improper privileges, or CWE-782, which addresses exposed service that allows privilege escalation.
The operational impact of CVE-2022-28752 extends beyond simple privilege escalation as it creates a persistent backdoor for attackers within conference room environments. Conference rooms often serve as critical collaboration spaces where sensitive business meetings occur, making them attractive targets for information gathering and persistent access. Once an attacker achieves SYSTEM-level privileges, they can install malicious software, modify system configurations, access all user data, and potentially use the compromised system as a launch point for further attacks within the network. This vulnerability particularly affects organizations that rely heavily on Zoom Rooms for their video conferencing infrastructure, as it creates an attack vector that could be exploited during routine conference room usage.
Organizations should immediately implement mitigations including deploying the patched version 5.11.0 or later of Zoom Rooms for Conference Rooms, which addresses the privilege escalation vulnerability through proper access control implementation. System administrators should also enforce the principle of least privilege by limiting user accounts to the minimum necessary permissions and regularly auditing access controls. Additionally, monitoring should be implemented to detect suspicious privilege escalation attempts and unusual system activities that may indicate exploitation attempts. From an ATT&CK framework perspective, this vulnerability aligns with T1068, which covers exploit for privilege escalation, and T1547, which covers registry run keys or startup folder. Organizations should also consider implementing application whitelisting policies and ensuring that only authorized Zoom Rooms versions are installed in conference room environments to prevent exploitation through unauthorized software installations.