CVE-2024-30571 in R6850
Summary
by MITRE • 04/03/2024
An information leak in the BRS_top.html component of Netgear R6850 v1.1.0.88 allows attackers to obtain sensitive information without any authentication required.
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Analysis
by VulDB Data Team • 03/29/2025
The vulnerability identified as CVE-2024-30571 represents a critical information disclosure flaw within the Netgear R6850 router firmware version 1.1.0.88. This issue specifically affects the BRS_top.html component, which serves as a bridge routing setup page within the device's web interface. The vulnerability stems from inadequate access controls and improper input validation mechanisms that fail to properly restrict unauthorized access to sensitive system information. Attackers can exploit this weakness to retrieve confidential data through simple unauthenticated requests, bypassing all standard security measures typically implemented in network infrastructure devices.
The technical nature of this vulnerability aligns with CWE-200, which describes improper exposure of sensitive information, and demonstrates how web application flaws can compromise network security. The BRS_top.html component likely contains configuration details, system parameters, or administrative credentials that should remain protected from public access. This type of information leak can provide attackers with comprehensive insights into the router's operational environment, including potential network topology details, firmware versions, and system configurations that could aid in subsequent attack phases. The lack of authentication requirements means that any remote attacker can access this information without requiring credentials, making the vulnerability particularly dangerous in exposed network environments.
The operational impact of this vulnerability extends beyond simple information disclosure, as it creates a foundation for more sophisticated attacks within the network infrastructure. An attacker who successfully exploits this vulnerability can gain detailed knowledge about the router's internal structure, which may reveal weaknesses in the overall network security posture. This information can be leveraged to identify potential attack vectors, understand the device's capabilities, and plan more targeted exploitation attempts. The vulnerability particularly affects enterprise and home network environments where routers are often exposed to external networks, potentially allowing attackers to map internal network structures and identify additional targets for compromise. The implications are significant for network administrators who may unknowingly leave critical infrastructure components accessible to unauthorized parties.
Mitigation strategies for CVE-2024-30571 should prioritize immediate firmware updates from Netgear to address the information disclosure vulnerability. Network administrators should implement network segmentation and access controls to limit exposure of critical infrastructure components to untrusted networks. Regular security assessments and vulnerability scanning should be conducted to identify similar weaknesses in other network devices. The implementation of web application firewalls and network monitoring solutions can help detect and prevent exploitation attempts. Additionally, organizations should follow the principle of least privilege by ensuring that only authorized personnel have access to administrative interfaces, and that default credentials are changed immediately upon device deployment. This vulnerability serves as a reminder of the importance of secure coding practices and proper input validation in network infrastructure components, as highlighted by the ATT&CK framework's emphasis on initial access and reconnaissance techniques.