CVE-2022-46539 : Exploit Details and Defense Strategies

Tenda F1203 V2.0.1.6 was discovered to contain a buffer overflow via the security_5g parameter at /goform/WifiBasicSet.

Understanding CVE-2022-46539

This CVE identifies a buffer overflow vulnerability in Tenda F1203 V2.0.1.6, impacting the security_5g parameter at /goform/WifiBasicSet.

What is CVE-2022-46539?

The CVE-2022-46539 vulnerability involves a buffer overflow in the Tenda F1203 V2.0.1.6 router, specifically within the security_5g parameter of the /goform/WifiBasicSet endpoint.

The Impact of CVE-2022-46539

Exploitation of this vulnerability could allow an attacker to execute arbitrary code, leading to unauthorized access, data theft, or disruption of service on affected devices.

Technical Details of CVE-2022-46539

This section outlines the specifics of the vulnerability.

Vulnerability Description

The buffer overflow in Tenda F1203 V2.0.1.6 enables attackers to overwrite adjacent memory locations, potentially leading to code execution.

Affected Systems and Versions

Tenda F1203 V2.0.1.6 is confirmed to be affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specially crafted input to the security_5g parameter at /goform/WifiBasicSet, triggering the buffer overflow.

Mitigation and Prevention

To mitigate the risks associated with CVE-2022-46539, follow the steps below.

Immediate Steps to Take

Disable remote access to affected Tenda F1203 V2.0.1.6 devices if not required.
Monitor network traffic for any suspicious activity.
Implement firewall rules to restrict unauthorized access.

Long-Term Security Practices

Regularly update firmware and apply security patches provided by the vendor.
Conduct security assessments and penetration testing on a routine basis.
Educate users on best practices for network security.

Patching and Updates

Contact Tenda for the latest firmware updates and security patches to address the CVE-2022-46539 vulnerability.