CVE-2024-35580

Comprehensive Technical Analysis of CVE-2024-35580

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2024-35580 Description: Tenda AX1806 v1.0.0.1 contains a stack overflow vulnerability via the adv.iptv.stbpvid parameter in the function formSetIptv. CVSS Score: 9.8

The CVSS score of 9.8 indicates a critical vulnerability. This high score is likely due to the potential for remote code execution, the ease of exploitation, and the significant impact on the confidentiality, integrity, and availability of the affected system.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Remote Exploitation: An attacker could exploit this vulnerability remotely by sending a specially crafted request to the affected device.
• Network-Based Attacks: Given that the Tenda AX1806 is a router, attackers could leverage this vulnerability to compromise the device over the network.

Exploitation Methods:

• Buffer Overflow: The attacker can send a maliciously crafted input to the adv.iptv.stbpvid parameter, causing a stack overflow.
• Code Execution: The stack overflow can be exploited to execute arbitrary code on the device, potentially leading to full control over the router.

3. Affected Systems and Software Versions

Affected Systems:

• Tenda AX1806 routers running firmware version v1.0.0.1.

Software Versions:

• Specifically, the vulnerability is present in firmware version v1.0.0.1.

4. Recommended Mitigation Strategies

Immediate Actions:

• Firmware Update: Users should immediately update their Tenda AX1806 routers to the latest firmware version provided by the manufacturer.
• Network Segmentation: Isolate the router from critical network segments to limit the potential impact of an exploit.
• Firewall Rules: Implement strict firewall rules to restrict access to the router's management interface.

Long-Term Strategies:

• Regular Patching: Ensure that all network devices are regularly updated with the latest security patches.
• Intrusion Detection Systems (IDS): Deploy IDS to monitor for suspicious activity that may indicate an attempt to exploit this vulnerability.
• Security Audits: Conduct regular security audits to identify and mitigate potential vulnerabilities in network devices.

5. Impact on Cybersecurity Landscape

Immediate Impact:

• Compromised Devices: Routers are critical network devices, and their compromise can lead to significant security risks, including data breaches and unauthorized access to internal networks.
• Lateral Movement: Attackers can use compromised routers as a pivot point to move laterally within the network, compromising other devices and systems.

Long-Term Impact:

• Increased Awareness: This vulnerability highlights the importance of securing IoT and network devices, which are often overlooked in security strategies.
• Enhanced Security Measures: The cybersecurity community may see an increased focus on securing firmware and implementing robust security measures for network devices.

6. Technical Details for Security Professionals

Vulnerability Details:

• Parameter: adv.iptv.stbpvid
• Function: formSetIptv
• Type: Stack Overflow

Exploitation Steps:

1. Identify Target: Locate a Tenda AX1806 router running the vulnerable firmware version.
2. Craft Payload: Create a payload that exceeds the buffer size for the adv.iptv.stbpvid parameter.
3. Send Request: Send the crafted payload to the router's management interface.
4. Execute Code: If successful, the payload will cause a stack overflow, allowing the attacker to execute arbitrary code.

Detection and Response:

• Log Analysis: Monitor router logs for unusual activity, such as repeated failed login attempts or unexpected traffic patterns.
• Behavioral Analysis: Use behavioral analysis tools to detect anomalies in network traffic that may indicate an exploit attempt.
• Incident Response: Have an incident response plan in place to quickly address and mitigate any successful exploitation of this vulnerability.

Conclusion

CVE-2024-35580 represents a critical vulnerability in Tenda AX1806 routers that can be exploited remotely to gain control over the device. Immediate mitigation strategies include updating the firmware, implementing network segmentation, and deploying intrusion detection systems. The cybersecurity community should take this as a reminder to prioritize the security of network devices and ensure regular patching and monitoring.