CVE-2022-42156 Explained : Impact and Mitigation

A command injection vulnerability was discovered in D-Link COVR 1200 and 1203 devices, allowing attackers to execute arbitrary commands via a specific parameter. Learn about the impact, technical details, and mitigation steps for CVE-2022-42156.

Understanding CVE-2022-42156

D-Link COVR 1200,1203 v1.08 was found to have a command injection vulnerability through the tomography_ping_number parameter in SetNetworkTomographySettings function.

What is CVE-2022-42156?

The CVE-2022-42156 vulnerability in D-Link COVR 1200,1203 devices enables threat actors to execute malicious commands by manipulating the tomography_ping_number parameter.

The Impact of CVE-2022-42156

This vulnerability can lead to unauthorized command execution, potentially resulting in full system compromise or disruption of services on affected devices.

Technical Details of CVE-2022-42156

Here are the technical specifics of CVE-2022-42156:

Vulnerability Description

The vulnerability allows remote attackers to inject arbitrary commands via the tomography_ping_number parameter.

Affected Systems and Versions

All D-Link COVR 1200 and 1203 devices running firmware version 1.08 are impacted by this vulnerability.

Exploitation Mechanism

Exploitation of this vulnerability involves sending crafted requests containing malicious commands to the affected devices.

Mitigation and Prevention

To secure your systems against CVE-2022-42156, consider the following steps:

Immediate Steps to Take

Disable remote management access if not required
Apply security patches provided by D-Link

Long-Term Security Practices

Regularly update firmware and software
Implement network segmentation to limit exposure

Patching and Updates

Visit D-Link's security bulletin and the provided GitHub link for detailed information on patches and updates.