CVE-2021-28144 : Exploit Details and Defense Strategies

A command injection vulnerability, CVE-2021-28144, impacting D-Link DIR-3060 devices before version 1.11b04 HF2 has been discovered. This CVE allows remote authenticated users to execute arbitrary commands in an admin or root context by manipulating the SetVirtualServerSettings function.

Understanding CVE-2021-28144

This section provides insights into the nature of the vulnerability, its impact, technical details, and mitigation strategies.

What is CVE-2021-28144?

CVE-2021-28144 is a security flaw in the prog.cgi component of D-Link DIR-3060 devices. It enables authenticated remote attackers to inject and run arbitrary commands as an administrator or root user, exploiting vulnerabilities in the SetVirtualServerSettings function.

The Impact of CVE-2021-28144

The vulnerability in D-Link DIR-3060 devices exposes them to the risk of unauthorized command executions by malicious actors with authenticated access. Attackers can leverage this flaw to compromise the integrity and confidentiality of the affected systems.

Technical Details of CVE-2021-28144

Explore the specifics of the vulnerability to understand its implications and potential risks better.

Vulnerability Description

The vulnerability arises due to inadequate input validation mechanisms in the SetVirtualServerSettings function, allowing for the execution of arbitrary commands in a privileged context.

Affected Systems and Versions

D-Link DIR-3060 devices running versions prior to 1.11b04 HF2 are susceptible to this command injection vulnerability.

Exploitation Mechanism

Attackers with authenticated access can manipulate the prog.cgi component to inject malicious commands, leading to unauthorized execution in an admin or root context.

Mitigation and Prevention

Learn how to protect your systems against CVE-2021-28144 and implement effective security measures.

Immediate Steps to Take

It is crucial to apply security patches provided by the vendor to remediate this vulnerability. Additionally, restrict network access to the affected devices and monitor for any suspicious activities.

Long-Term Security Practices

Enhance the security posture of your network by enforcing the principle of least privilege, conducting regular security audits, and educating users about safe computing practices.

Patching and Updates

Stay vigilant for security updates released by D-Link for the DIR-3060 devices. Regularly check for firmware patches and ensure timely application to mitigate potential risks.