CVE-2023-31986 Explained : Impact and Mitigation

A Command Injection vulnerability in Edimax Wireless Router N300 Firmware BR-6428NS_v4 allows an attacker to execute arbitrary code via the setWAN function in /bin/webs without any limitations.

Understanding CVE-2023-31986

This article delves into the details of a Command Injection vulnerability in the Edimax Wireless Router N300 Firmware BR-6428NS_v4.

What is CVE-2023-31986?

CVE-2023-31986 is a Command Injection vulnerability that enables an attacker to run arbitrary code using the setWAN function in /bin/webs on the Edimax Wireless Router N300 Firmware BR-6428NS_v4.

The Impact of CVE-2023-31986

If exploited, this vulnerability can allow malicious actors to execute commands without any restrictions, potentially leading to unauthorized access, data theft, or further compromise of the affected system.

Technical Details of CVE-2023-31986

In this section, the technical aspects of CVE-2023-31986 are discussed in detail.

Vulnerability Description

The vulnerability arises from improper input validation in the setWAN function, which can be exploited by an attacker to inject and execute arbitrary commands.

Affected Systems and Versions

The Command Injection vulnerability impacts Edimax Wireless Router N300 Firmware BR-6428NS_v4.

Exploitation Mechanism

By leveraging the setWAN function in /bin/webs, threat actors can craft malicious inputs to execute arbitrary code on the target system.

Mitigation and Prevention

Discover the measures to mitigate and prevent the exploitation of CVE-2023-31986.

Immediate Steps to Take

Disable remote access if not required
Implement network segmentation to minimize the attack surface

Long-Term Security Practices

Regularly update firmware to patch known vulnerabilities
Conduct security assessments and penetration testing to identify and address weaknesses

Patching and Updates

Stay informed about security advisories from Edimax and promptly apply any released patches to secure your devices.