CVE-2023-34571 Explained : Impact and Mitigation

This article provides detailed information about CVE-2023-34571, a stack overflow vulnerability found in Tenda AC10 v4 US_AC10V4.0si_V16.03.10.13_cn that could be exploited via a specific parameter.

Understanding CVE-2023-34571

CVE-2023-34571 highlights a critical stack overflow in Tenda AC10 v4 US_AC10V4.0si_V16.03.10.13_cn routers when interacting with the 'shareSpeed' parameter in the /goform/WifiGuestSet path.

What is CVE-2023-34571?

CVE-2023-34571 involves a stack overflow vulnerability in Tenda AC10 v4 US_AC10V4.0si_V16.03.10.13_cn routers due to improper handling of user input, potentially leading to remote code execution.

The Impact of CVE-2023-34571

This vulnerability could allow an attacker to execute arbitrary code on the affected router, compromise user data, disrupt network services, and potentially launch further attacks within the network.

Technical Details of CVE-2023-34571

This section dives into the specifics of the vulnerability, affected systems, and exploitation methods.

Vulnerability Description

The vulnerability arises from a lack of proper input validation when processing the 'shareSpeed' parameter, leading to a stack overflow condition that could be abused by a remote attacker.

Affected Systems and Versions

Tenda AC10 v4 US_AC10V4.0si_V16.03.10.13_cn routers are specifically impacted by this vulnerability, with the exact version mentioned being vulnerable to exploitation.

Exploitation Mechanism

By sending a specially crafted request containing a large amount of data to the 'shareSpeed' parameter, an attacker can trigger the stack overflow and potentially gain control over the router remotely.

Mitigation and Prevention

Protecting against CVE-2023-34571 requires immediate action to mitigate the risks and prevent unauthorized access.

Immediate Steps to Take

Users are advised to restrict access to vulnerable routers, apply security patches as soon as they become available, and monitor network traffic for any suspicious activity.

Long-Term Security Practices

Implementing strong firewall rules, regularly updating router firmware, and conducting periodic security audits can help reduce the likelihood of successful attacks targeting this vulnerability.

Patching and Updates

Vendor-provided patches for Tenda AC10 v4 US_AC10V4.0si_V16.03.10.13_cn routers should be promptly applied to address the stack overflow vulnerability and enhance the security posture of the affected devices.