CVE-2024-24690 in Desktop Client
Summary
by MITRE • 02/14/2024
Improper input validation in some Zoom clients may allow an authenticated user to conduct a denial of service via network access.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 10/04/2024
The vulnerability identified as CVE-2024-24690 represents a critical weakness in Zoom client software that stems from inadequate input validation mechanisms. This flaw specifically affects authenticated users who can exploit the vulnerability through network access to initiate denial of service attacks against the targeted system. The issue manifests when the Zoom client fails to properly validate incoming data inputs, creating potential entry points for malicious actors to disrupt service availability. The vulnerability impacts various Zoom client implementations across different operating systems and platforms, making it particularly concerning for organizations relying on Zoom for their communication infrastructure.
From a technical perspective, the vulnerability arises from the client-side validation process where user-supplied data is not adequately sanitized or verified before being processed. This improper input validation creates opportunities for attackers to craft malicious inputs that can cause the client application to crash or become unresponsive. The flaw typically involves scenarios where the application does not properly handle malformed or unexpected data inputs, leading to buffer overflows, memory corruption, or other execution anomalies that result in service disruption. The authentication requirement means that attackers must first establish a valid session within the Zoom environment before exploiting this vulnerability, though this does not significantly reduce the risk level given the potential for widespread impact.
The operational impact of CVE-2024-24690 extends beyond simple service interruption to potentially compromise the entire communication infrastructure of affected organizations. When exploited, this vulnerability can cause authenticated users to render Zoom clients unavailable to legitimate users, effectively disrupting business continuity and collaboration workflows. Organizations relying heavily on Zoom for video conferencing, webinars, and remote work capabilities face significant operational risks as this vulnerability can be leveraged to create sustained denial of service conditions. The attack vector through network access means that the vulnerability can be exploited from remote locations, potentially allowing attackers to target multiple clients simultaneously across different network segments.
Security professionals should consider this vulnerability in the context of broader attack patterns documented in the MITRE ATT&CK framework, particularly within the privilege escalation and denial of service categories. The vulnerability aligns with CWE-20, which specifically addresses improper input validation as a fundamental weakness in software security design. Organizations should implement immediate mitigations including applying the latest security patches from Zoom, implementing network segmentation to limit access to Zoom services, and monitoring for unusual network activity patterns that may indicate exploitation attempts. Additionally, administrators should consider deploying intrusion detection systems that can identify potential exploitation attempts targeting this specific vulnerability. The remediation process requires careful coordination to ensure that patch deployment does not disrupt existing business operations while maintaining security posture. Regular security assessments should be conducted to verify that the vulnerability has been properly addressed and that no other similar validation flaws exist within the Zoom client implementation or related systems.