CVE-2023-44838 : Security Advisory and Response

This article provides insights into CVE-2023-44838, a vulnerability in D-Link DIR-823G A1V1.0.2B05 that could lead to a Denial of Service (DoS) attack.

Understanding CVE-2023-44838

This section delves into the details of the vulnerability in D-Link DIR-823G A1V1.0.2B05.

What is CVE-2023-44838?

The CVE-2023-44838 vulnerability involves a buffer overflow in the SetWLanRadioSettings function due to the TXPower parameter in D-Link DIR-823G A1V1.0.2B05. Attackers exploiting this flaw can trigger a DoS attack with a carefully crafted input.

The Impact of CVE-2023-44838

The impact of this vulnerability is significant as it allows malicious actors to disrupt the normal functioning of the affected device, potentially leading to service downtime.

Technical Details of CVE-2023-44838

This section provides a deeper dive into the technical aspects of CVE-2023-44838.

Vulnerability Description

The vulnerability stems from a buffer overflow in the SetWLanRadioSettings function, specifically related to the TXPower parameter, in D-Link DIR-823G A1V1.0.2B05.

Affected Systems and Versions

The affected system is D-Link DIR-823G A1V1.0.2B05. The specific affected versions are not applicable (n/a).

Exploitation Mechanism

Attackers can exploit this vulnerability by providing a malicious input to the TXPower parameter, triggering a buffer overflow that results in a DoS condition.

Mitigation and Prevention

In this section, we discuss mitigation strategies and preventive measures for CVE-2023-44838.

Immediate Steps to Take

Users and administrators are advised to apply security patches released by D-Link promptly. Additionally, network segmentation and access controls can help reduce the attack surface.

Long-Term Security Practices

It is recommended to regularly update firmware and systems, conduct security assessments, and monitor network traffic for any suspicious activities.

Patching and Updates

Stay informed about security advisories from D-Link and apply patches as soon as they are available to avoid exploitation of known vulnerabilities.