CVE-2023-43129 : Exploit Details and Defense Strategies

D-LINK DIR-806 1200M11AC wireless router DIR806A1_FW100CNb11 is vulnerable to command injection due to lax filtering of REMOTE_PORT parameters.

Understanding CVE-2023-43129

This CVE highlights a vulnerability in the D-LINK DIR-806 1200M11AC wireless router that can be exploited through command injection.

What is CVE-2023-43129?

The CVE-2023-43129 vulnerability exists in the DIR806A1_FW100CNb11 firmware of the D-LINK DIR-806 1200M11AC wireless router. Attackers can leverage this flaw by manipulating REMOTE_PORT parameters due to insufficient filtering.

The Impact of CVE-2023-43129

Exploitation of this vulnerability can lead to unauthorized remote command execution, potentially allowing threat actors to take control of the affected device.

Technical Details of CVE-2023-43129

The following sections provide more insight into the technical aspects of CVE-2023-43129.

Vulnerability Description

The vulnerability arises from inadequate validation of REMOTE_PORT parameters, enabling attackers to inject and execute arbitrary commands on the router remotely.

Affected Systems and Versions

The D-LINK DIR-806 1200M11AC wireless router running the DIR806A1_FW100CNb11 firmware version is susceptible to this command injection vulnerability.

Exploitation Mechanism

By manipulating the REMOTE_PORT parameters, threat actors can craft malicious commands that, when executed, give them unauthorized access to the affected router.

Mitigation and Prevention

To address CVE-2023-43129 and enhance the security posture of your network, consider the following mitigation strategies.

Immediate Steps to Take

Disable remote management access to the router if not required.
Regularly monitor network traffic and look for any unusual activity.

Long-Term Security Practices

Keep firmware and software up to date to patch known vulnerabilities.
Implement strong access controls and authentication mechanisms to restrict unauthorized access.

Patching and Updates

Stay informed about security updates released by D-LINK for the DIR-806 1200M11AC wireless router and promptly apply patches to mitigate the risk of exploitation.