CVE-2023-43198 : Security Advisory and Response

A detailed overview of CVE-2023-43198 focusing on the impact, technical details, and mitigation strategies.

Understanding CVE-2023-43198

In this section, we will explore what CVE-2023-43198 is and its implications.

What is CVE-2023-43198?

The vulnerability affects D-Link device DI-7200GV2.E1 v21.04.09E1 due to a stack overflow in the H5/hi_block.asp function via the popupId parameter.

The Impact of CVE-2023-43198

The vulnerability could potentially allow attackers to execute arbitrary code or crash the affected system, leading to a possible denial of service (DoS) condition.

Technical Details of CVE-2023-43198

This section delves into specific technical aspects of the CVE-2023-43198 vulnerability.

Vulnerability Description

The stack overflow vulnerability arises from improper handling of input supplied to the popupId parameter in the H5/hi_block.asp function of the D-Link device firmware.

Affected Systems and Versions

The issue impacts D-Link device DI-7200GV2.E1 running version 21.04.09E1 of the firmware.

Exploitation Mechanism

An attacker can exploit the vulnerability by providing specially crafted input to the popupId parameter, triggering the stack overflow and potentially gaining unauthorized access to the device.

Mitigation and Prevention

This section outlines steps to mitigate the risks associated with CVE-2023-43198.

Immediate Steps to Take

Users are advised to restrict network access to the affected device and implement firewall rules to limit exposure until a patch is available.

Long-Term Security Practices

Regularly updating firmware, monitoring for security advisories, and employing network segmentation can enhance overall device security.

Patching and Updates

Vendor patches and updates for the D-Link device firmware should be promptly applied to address the vulnerability and protect against potential exploitation.