CVE-2024-40091 in Mesh WiFi System
Summary
by MITRE • 10/22/2024
Vilo 5 Mesh WiFi System <= 5.16.1.33 lacks authentication in the Boa webserver, which allows remote, unauthenticated attackers to retrieve logs with sensitive system.
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Analysis
by VulDB Data Team • 07/07/2025
The Vilo 5 Mesh WiFi System version 5.16.1.33 and earlier contains a critical security vulnerability that stems from inadequate authentication mechanisms within its embedded Boa webserver implementation. This flaw represents a fundamental failure in the system's access control architecture, where administrative functions remain completely exposed to remote network traffic without requiring any form of credential validation or session management. The vulnerability specifically affects the system's logging capabilities, which are designed to provide operational insights and security monitoring data but are inadvertently accessible to any remote attacker who can reach the device's network interface.
The technical nature of this vulnerability aligns with CWE-287 which addresses improper authentication issues in software systems. The Boa webserver component within the Vilo 5 system fails to implement proper authentication checks before allowing access to sensitive administrative functions, creating an unauthenticated attack surface that directly violates established security principles. This weakness enables attackers to bypass normal access controls and directly query the system's logging infrastructure, potentially exposing a wide range of sensitive operational data including network configurations, user activities, system performance metrics, and other diagnostic information that could be leveraged for further attacks.
From an operational impact perspective, this vulnerability creates significant risk for organizations and individuals who deploy these mesh WiFi systems in both enterprise and residential environments. Remote attackers can exploit this weakness to gain unauthorized access to system logs that may contain information about network topology, connected devices, user behavior patterns, and potentially even credentials or authentication tokens that could be present in log entries. The exposure of such data could facilitate advanced persistent threat campaigns, network reconnaissance activities, or provide attackers with intelligence needed to plan more sophisticated attacks against the affected network infrastructure. The vulnerability also creates opportunities for attackers to identify system vulnerabilities or misconfigurations that could be exploited for privilege escalation or lateral movement within the network.
The attack surface for this vulnerability extends beyond simple information disclosure to include potential system compromise scenarios. According to ATT&CK framework reference T1083, adversaries can use this vulnerability to perform reconnaissance activities and gather system information that could be used for subsequent attack phases. The lack of authentication in the webserver component creates a persistent threat vector that remains active until the device is updated or physically secured. Organizations using affected Vilo 5 systems should consider this vulnerability as a critical risk that could lead to complete system compromise if combined with other attack vectors or if the logs contain additional sensitive information that could be exploited.
Mitigation strategies for this vulnerability should focus on immediate remediation through firmware updates from the vendor, which would be expected to implement proper authentication mechanisms within the Boa webserver. Network administrators should also consider implementing firewall rules that restrict access to the affected system's web interface to trusted networks only, while monitoring for suspicious access patterns in existing logs that might indicate exploitation attempts. Additionally, organizations should conduct thorough network assessments to identify all affected devices and ensure that proper network segmentation is implemented to limit the potential impact of such vulnerabilities. The vulnerability highlights the importance of secure configuration practices and regular security assessments of network infrastructure components to prevent similar issues from occurring in the future.