CVE-2023-43241 Explained : Impact and Mitigation

Understanding CVE-2023-43241

A stack overflow vulnerability was discovered in D-Link DIR-823G v1.0.2B05, affecting the SetWLanRadioSecurity function.

What is CVE-2023-43241?

CVE-2023-43241 is a CVE ID assigned to a stack overflow vulnerability in D-Link DIR-823G v1.0.2B05, specifically via the parameters TXPower and GuardInt in SetWLanRadioSecurity.

The Impact of CVE-2023-43241

This vulnerability could potentially allow an attacker to execute arbitrary code or cause a denial of service by exploiting the stack overflow in the affected device.

Technical Details of CVE-2023-43241

The following technical details outline the vulnerability:

Vulnerability Description

The vulnerability exists in the SetWLanRadioSecurity function of D-Link DIR-823G v1.0.2B05 due to improper handling of the TXPower and GuardInt parameters, resulting in a stack overflow.

Affected Systems and Versions

The D-Link DIR-823G model with firmware version 1.0.2B05 is affected by this vulnerability.

Exploitation Mechanism

An attacker can exploit this vulnerability by sending crafted input values for the TXPower and GuardInt parameters, leading to a stack overflow condition.

Mitigation and Prevention

To mitigate the risks associated with CVE-2023-43241, consider the following steps:

Immediate Steps to Take

Disable remote access to the affected device if not required.
Monitor vendor updates and patches for a security fix.

Long-Term Security Practices

Regularly update firmware and software to the latest versions.
Implement network segmentation to isolate critical devices.

Patching and Updates

Apply patches or firmware updates provided by D-Link to address the vulnerability.