EUVD-2024-47988

Comprehensive Technical Analysis of EUVD-2024-47988

1. Vulnerability Assessment and Severity Evaluation

Vulnerability Description: The vulnerability EUVD-2024-47988 affects the Wyze Cam v3 IP cameras, specifically within the Realtek Wi-Fi kernel module. The issue arises from a heap-based buffer overflow due to insufficient validation of user-supplied data length before copying it to a heap-based buffer. This flaw allows network-adjacent attackers to execute arbitrary code on the affected devices without requiring authentication.

Severity Evaluation: The vulnerability has a CVSS Base Score of 9.6, which is classified as critical. The CVSS vector CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H indicates the following:

• Attack Vector (AV): Adjacent network
• Attack Complexity (AC): Low
• Privileges Required (PR): None
• User Interaction (UI): None
• Scope (S): Changed
• Confidentiality (C): High
• Integrity (I): High
• Availability (A): High

This high severity score underscores the critical nature of the vulnerability, which can lead to complete system compromise.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Network-Adjacent Attack: An attacker on the same local network as the Wyze Cam v3 can exploit this vulnerability.
• Remote Attack: If the camera is exposed to the internet without proper firewalling, remote attackers could potentially exploit this vulnerability.

Exploitation Methods:

• Crafted Packets: An attacker can send specially crafted packets to the Realtek Wi-Fi driver, causing a buffer overflow.
• Arbitrary Code Execution: By exploiting the buffer overflow, an attacker can execute arbitrary code in the context of the kernel, leading to full control over the device.

3. Affected Systems and Software Versions

Affected Systems:

• Wyze Cam v3 IP cameras

Software Versions:

• Firmware version 4.36.11.7071

4. Recommended Mitigation Strategies

Immediate Mitigation:

• Network Segmentation: Isolate Wyze Cam v3 devices on a separate network segment to limit exposure.
• Firewall Rules: Implement strict firewall rules to block unauthorized access to the cameras.
• Firmware Update: Apply the latest firmware updates provided by Wyze as soon as they are available.

Long-Term Mitigation:

• Regular Patching: Ensure that all IoT devices, including Wyze Cam v3, are regularly updated with the latest security patches.
• Intrusion Detection Systems (IDS): Deploy IDS to monitor network traffic for suspicious activities.
• Access Control: Implement strong access control measures to restrict access to the camera's management interface.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to the European cybersecurity landscape, particularly in environments where Wyze Cam v3 cameras are widely deployed, such as smart homes, businesses, and public spaces. The potential for unauthorized access and control over these devices can lead to privacy breaches, data theft, and disruption of services.

6. Technical Details for Security Professionals

Vulnerability Details:

• CVE ID: CVE-2024-6246
• Affected Component: Realtek Wi-Fi kernel module
• Root Cause: Lack of proper validation of user-supplied data length before copying it to a heap-based buffer.

Exploitation Steps:

1. Identify Target: Locate Wyze Cam v3 devices on the network.
2. Craft Exploit: Develop a payload that triggers the buffer overflow in the Realtek Wi-Fi driver.
3. Deliver Payload: Send the crafted payload to the target device via network packets.
4. Execute Code: Gain control over the device by executing arbitrary code in the kernel context.

Detection and Monitoring:

• Network Traffic Analysis: Monitor for unusual network traffic patterns that may indicate an exploitation attempt.
• Log Analysis: Review system logs for any anomalies or indicators of compromise.
• Behavioral Analysis: Use behavioral analysis tools to detect unusual device behavior.

Conclusion: The EUVD-2024-47988 vulnerability in Wyze Cam v3 IP cameras is a critical issue that requires immediate attention. Organizations and individuals using these devices should prioritize applying the latest firmware updates and implementing robust security measures to mitigate the risk of exploitation. Continuous monitoring and regular security assessments are essential to maintain the integrity and security of IoT devices in the European cybersecurity landscape.