CVE-2022-3210 : What You Need to Know

This CVE article provides insights into a critical vulnerability found in D-Link DIR-2150 4.0.1 routers that allows attackers to execute arbitrary commands without authentication.

Understanding CVE-2022-3210

This section delves into the details of CVE-2022-3210 and its impact, technical description, affected systems, exploitation mechanism, mitigation, and prevention methods.

What is CVE-2022-3210?

CVE-2022-3210 is a vulnerability in the xupnpd service of D-Link DIR-2150 4.0.1 routers, allowing network-adjacent attackers to execute arbitrary commands without needing authentication. The flaw arises from improper validation of user-supplied strings.

The Impact of CVE-2022-3210

The vulnerability presents a high-risk scenario where attackers can exploit the xupnpd service on TCP port 4044 to execute code with elevated privileges in the service account context. This can lead to unauthorized system access and data compromise.

Technical Details of CVE-2022-3210

This section outlines the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The flaw in the xupnpd service of D-Link DIR-2150 4.0.1 routers stems from the lack of proper validation of user-supplied strings before executing system calls, enabling attackers to run arbitrary commands.

Affected Systems and Versions

D-Link DIR-2150 routers with version 4.0.1 are impacted by this vulnerability, exposing them to potential exploitation by threat actors.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending malicious input to the xupnpd service on TCP port 4044, allowing them to execute unauthorized commands with elevated privileges.

Mitigation and Prevention

In light of CVE-2022-3210, taking immediate steps, implementing long-term security practices, and regularly applying patches is crucial to safeguarding systems.

Immediate Steps to Take

Immediately apply security patches provided by the vendor, restrict network access to vulnerable devices, and monitor for any suspicious activities indicating exploitation attempts.

Long-Term Security Practices

Implement network segmentation, enforce the principle of least privilege, conduct regular security audits, and educate users on safe browsing habits to enhance overall cybersecurity posture.

Patching and Updates

Regularly check for updates and patches from D-Link, apply them promptly, and stay informed about emerging threats and security best practices.