CVE-2024-42437 in Workplace Desktop App
Summary
by MITRE • 08/14/2024
Buffer overflow in some Zoom Workplace Apps, SDKs, Rooms Clients, and Rooms Controllers may allow an authenticated user to conduct a denial of service via network access.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 09/05/2024
The vulnerability identified as CVE-2024-42437 represents a critical buffer overflow flaw affecting multiple components within the Zoom ecosystem including Workplace Apps, Software Development Kits, Rooms Clients, and Rooms Controllers. This security weakness manifests when authenticated users exploit improper input validation mechanisms within the affected software components, creating opportunities for malicious actors to manipulate memory structures through network-based attacks. The vulnerability specifically impacts the handling of user-supplied data within buffer allocation routines, where insufficient bounds checking allows attackers to overwrite adjacent memory locations with arbitrary data.
The technical implementation of this buffer overflow vulnerability stems from inadequate validation of input parameters within the Zoom client applications and server components. When authenticated users submit malformed data through network interfaces, the applications fail to properly constrain buffer sizes, leading to memory corruption that can result in application crashes or system instability. This type of vulnerability falls under the CWE-121 category of stack-based buffer overflow, though the specific implementation may involve heap-based memory corruption depending on the affected component architecture. The flaw demonstrates characteristics of improper input validation and memory safety issues that are commonly exploited in privilege escalation and denial of service scenarios.
From an operational perspective, the impact of CVE-2024-42437 creates significant risks for organizations relying on Zoom services for business communications. An authenticated attacker with network access can leverage this vulnerability to disrupt service availability, potentially affecting thousands of concurrent users within a corporate environment. The denial of service condition can be particularly damaging in enterprise settings where video conferencing systems are critical infrastructure components for remote work operations. Attackers can exploit this vulnerability to cause repeated application crashes, system restarts, or complete service unavailability, leading to productivity losses and potential business disruption. The authenticated nature of the exploit means that attackers need valid credentials, but this requirement does not significantly reduce the threat level given the prevalence of credential compromise techniques.
Organizations should implement immediate mitigations including applying the latest security patches released by Zoom, implementing network segmentation to limit access to affected components, and monitoring for suspicious network activity patterns that may indicate exploitation attempts. The vulnerability aligns with ATT&CK technique T1499.004 for network denial of service and may also map to T1566.001 for credential harvesting if attackers gain access through compromised accounts. Additional defensive measures should include network traffic analysis to detect malformed packets targeting the vulnerable components, implementing application whitelisting policies, and conducting regular security assessments of Zoom deployment configurations. System administrators should also consider disabling unnecessary network services and ensuring that only authorized users have access to the affected Zoom client applications and controllers.