CVE-2023-43236 Explained : Impact and Mitigation

A stack overflow vulnerability was found in D-Link DIR-816 A2 v1.10CNB05, allowing attackers to execute arbitrary code via a specific parameter in dir_setWanWifi.

Understanding CVE-2023-43236

This section delves into the details of the CVE-2023-43236 vulnerability.

What is CVE-2023-43236?

CVE-2023-43236 is a stack overflow vulnerability present in D-Link DIR-816 A2 v1.10CNB05, which can be exploited by malicious actors to trigger arbitrary code execution.

The Impact of CVE-2023-43236

The impact of this vulnerability could lead to unauthorized remote code execution, potentially compromising the security and integrity of systems.

Technical Details of CVE-2023-43236

Exploring the technical aspects of the CVE-2023-43236 vulnerability.

Vulnerability Description

The vulnerability exists due to improper handling of specific parameters in the dir_setWanWifi function, resulting in a stack overflow condition.

Affected Systems and Versions

The vulnerability affects D-Link DIR-816 A2 v1.10CNB05.

Exploitation Mechanism

Attackers can exploit this vulnerability by supplying a crafted parameter (statuscheckpppoeuser) to the dir_setWanWifi function, leading to a stack overflow and potential code execution.

Mitigation and Prevention

Guidelines to mitigate and prevent the CVE-2023-43236 vulnerability.

Immediate Steps to Take

Disable remote access if not required
Implement network segmentation to limit attacker movement
Monitor network traffic for any suspicious activity

Long-Term Security Practices

Regularly update firmware and software patches
Conduct security audits and penetration testing
Educate users on safe browsing practices and security awareness

Patching and Updates

Ensure to apply the latest security patches provided by D-Link to address the CVE-2023-43236 vulnerability.