CVE-2023-24798 : Security Advisory and Response

This CVE record, published on April 7, 2023, highlights a vulnerability in the D-Link DIR878 DIR_878_FW120B05 firmware that could potentially lead to a Denial of Service (DoS) attack or the execution of arbitrary code by malicious actors.

Understanding CVE-2023-24798

This section delves into the specifics of CVE-2023-24798, shedding light on the nature of the vulnerability and its potential impact.

What is CVE-2023-24798?

The vulnerability identified in the D-Link DIR878 DIR_878_FW120B05 firmware stems from a stack overflow in the sub_475FB0 function. Exploiting this vulnerability could enable attackers to launch a Denial of Service (DoS) attack or execute arbitrary code on the affected system by leveraging a specially crafted payload.

The Impact of CVE-2023-24798

The impact of CVE-2023-24798 could be severe, as threat actors could disrupt services by causing a Denial of Service (DoS) condition or gain unauthorized access and control over the affected device via arbitrary code execution.

Technical Details of CVE-2023-24798

This section provides a more detailed overview of the vulnerability, including its description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability in the D-Link DIR878 DIR_878_FW120B05 firmware arises from a stack overflow within the sub_475FB0 function. This flaw can be exploited by attackers to either trigger a Denial of Service (DoS) scenario or execute arbitrary code on the target system using a carefully crafted payload.

Affected Systems and Versions

The vulnerability impacts the D-Link DIR878 DIR_878_FW120B05 firmware. The specific affected versions and product details are not available, as indicated in the CVE data.

Exploitation Mechanism

Malicious actors can exploit this vulnerability by sending a specially crafted payload to the target system, triggering the stack overflow in the sub_475FB0 function. This could lead to the execution of arbitrary code or a Denial of Service (DoS) attack.

Mitigation and Prevention

In this section, we outline key steps that organizations and users can take to mitigate the risks associated with CVE-2023-24798 and prevent potential exploitation of the vulnerability.

Immediate Steps to Take

Update the firmware: Users should promptly apply any security patches or updates released by D-Link to address the vulnerability in the DIR878 DIR_878_FW120B05 firmware.
Network segmentation: Implement network segmentation to limit the impact of potential attacks and improve overall security posture.

Long-Term Security Practices

Regular security audits: Conduct periodic security audits and assessments to proactively identify and address vulnerabilities in network devices.
Employee training: Provide cybersecurity awareness training to employees to enhance their understanding of potential threats and best security practices.

Patching and Updates

Stay informed: Monitor official D-Link security bulletins and announcements for any new updates or patches addressing CVE-2023-24798.
Timely implementation: Ensure timely application of firmware updates and security patches to mitigate the risk of exploitation and enhance system security.