CVE-2022-29778 : Security Advisory and Response

D-Link DIR-890L 1.20b01 contains a critical vulnerability that allows attackers to execute arbitrary code by exploiting the hardcoded Wake-On-Lan option for the 'descriptor' parameter in SetVirtualServerSettings.php.

Understanding CVE-2022-29778

This CVE details a security flaw in the D-Link DIR-890L 1.20b01 model that can lead to arbitrary code execution.

What is CVE-2022-29778?

The vulnerability in D-Link DIR-890L 1.20b01 enables malicious actors to run arbitrary code due to the hardcoded Wake-On-Lan option in the 'descriptor' parameter of SetVirtualServerSettings.php.

The Impact of CVE-2022-29778

Exploitation of this CVE can result in unauthorized execution of code, potentially leading to unauthorized access, data theft, or further network compromise.

Technical Details of CVE-2022-29778

Below are the critical technical details associated with CVE-2022-29778:

Vulnerability Description

D-Link DIR-890L 1.20b01 is susceptible to remote code execution through the Wake-On-Lan setting within the 'descriptor' parameter of SetVirtualServerSettings.php.

Affected Systems and Versions

The specific version impacted by this vulnerability is D-Link DIR-890L 1.20b01, with no other versions affected.

Exploitation Mechanism

Attackers can exploit the hardcoded Wake-On-Lan setting to execute malicious code remotely on vulnerable D-Link DIR-890L 1.20b01 devices.

Mitigation and Prevention

Protect your system from CVE-2022-29778 using the following guidelines:

Immediate Steps to Take

Disable remote access to vulnerable D-Link DIR-890L 1.20b01 devices.
Apply security best practices to limit exposure to potential threats.

Long-Term Security Practices

Regularly update firmware to patch known vulnerabilities.
Implement network segmentation to minimize the impact of potential breaches.

Patching and Updates

Check the official D-Link security bulletin and GitHub repository for patches and updates addressing CVE-2022-29778.