CVE-2023-44837 : Vulnerability Insights and Analysis

This article provides detailed information about CVE-2023-44837, a vulnerability found in D-Link DIR-823G A1V1.0.2B05 that could lead to a Denial of Service (DoS) attack.

Understanding CVE-2023-44837

CVE-2023-44837 is a buffer overflow vulnerability discovered in the Password parameter of the SetWanSettings function in D-Link DIR-823G A1V1.0.2B05. Exploiting this vulnerability can allow attackers to perform a DoS attack.

What is CVE-2023-44837?

CVE-2023-44837 is a security flaw in D-Link DIR-823G A1V1.0.2B05 that arises from improper input validation in the Password parameter of the SetWanSettings function. Attackers can exploit this issue by providing crafted input, leading to a buffer overflow condition that can result in a DoS attack.

The Impact of CVE-2023-44837

The impact of CVE-2023-44837 is the potential for attackers to disrupt the normal operation of the affected D-Link DIR-823G A1V1.0.2B05 device by causing a Denial of Service (DoS) scenario. This can result in loss of service availability and potential disruption to critical network operations.

Technical Details of CVE-2023-44837

This section provides additional technical insights into the vulnerability.

Vulnerability Description

The vulnerability exists in the Password parameter of the SetWanSettings function in D-Link DIR-823G A1V1.0.2B05, allowing for buffer overflow exploitation. This flaw can be abused by attackers to execute a DoS attack.

Affected Systems and Versions

The affected system is D-Link DIR-823G A1V1.0.2B05 with all versions being susceptible to this buffer overflow vulnerability.

Exploitation Mechanism

Attackers can exploit the CVE-2023-44837 vulnerability by sending specially crafted input to the Password parameter in the SetWanSettings function, triggering a buffer overflow that can lead to a DoS condition.

Mitigation and Prevention

To mitigate the risks associated with CVE-2023-44837, immediate action and long-term security practices are essential.

Immediate Steps to Take

Consider applying security patches or updates provided by D-Link to address the vulnerability promptly.
Implement network-level protections to filter out malicious traffic targeting the vulnerable function.

Long-Term Security Practices

Regularly monitor security advisories from D-Link and other relevant sources to stay informed about potential vulnerabilities.
Conduct regular security assessments and penetration testing to identify and remediate security weaknesses.

Patching and Updates

Ensure that your D-Link DIR-823G A1V1.0.2B05 device is running the latest firmware version provided by the vendor to mitigate the CVE-2023-44837 vulnerability.