CVE-2023-36187 : Vulnerability Insights and Analysis

A Buffer Overflow vulnerability in NETGEAR R6400v2 allows remote unauthenticated attackers to execute arbitrary code via a crafted URL to httpd.

Understanding CVE-2023-36187

This section will delve into the details of the Buffer Overflow vulnerability in NETGEAR R6400v2.

What is CVE-2023-36187?

The CVE-2023-36187 is a Buffer Overflow vulnerability in NETGEAR R6400v2 routers before version 1.0.4.118, which enables remote unauthenticated attackers to execute arbitrary code by sending a specially crafted URL to httpd.

The Impact of CVE-2023-36187

This vulnerability poses a significant risk as it allows attackers to remotely execute malicious code on the affected systems, potentially leading to unauthorized access, data theft, or disruption of services.

Technical Details of CVE-2023-36187

Let's explore the technical specifics of the CVE-2023-36187 vulnerability.

Vulnerability Description

The Buffer Overflow vulnerability in NETGEAR R6400v2 arises from improper input validation, allowing attackers to overflow the buffer and manipulate the execution flow to run arbitrary code.

Affected Systems and Versions

The vulnerability affects NETGEAR R6400v2 routers that are running versions prior to 1.0.4.118.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending a specifically crafted URL to the httpd service, triggering the buffer overflow and gaining unauthorized remote code execution capabilities.

Mitigation and Prevention

Discover the necessary steps to mitigate the risks associated with CVE-2023-36187.

Immediate Steps to Take

Update NETGEAR R6400v2 routers to version 1.0.4.118 or above to patch the vulnerability.
Implement network segmentation and access controls to limit exposure to potential attacks.

Long-Term Security Practices

Regularly monitor for security advisories and updates from NETGEAR to stay informed about potential vulnerabilities.
Conduct routine security assessments and penetration testing to identify and address weaknesses in the network infrastructure.

Patching and Updates

Ensure that all routers are promptly updated with the latest firmware releases provided by NETGEAR to stay protected against known vulnerabilities.