CVE-2023-30280 : What You Need to Know

A Buffer Overflow vulnerability has been discovered in Netgear R6900 v.1.0.2.26, R6700v3 v.1.0.4.128, R6700 v.1.0.0.26. This vulnerability allows a remote attacker to execute arbitrary code and cause a denial of service.

Understanding CVE-2023-30280

This section provides an overview of the CVE-2023-30280 vulnerability in Netgear routers.

What is CVE-2023-30280?

The Buffer Overflow vulnerability in Netgear R6900, R6700v3, and R6700 routers enables a remote attacker to exploit the getInputData parameter of the fwSchedule.cgi page, leading to arbitrary code execution and denial of service.

The Impact of CVE-2023-30280

The impact of this vulnerability includes potential unauthorized access to the affected routers, execution of malicious code by the attacker, and disruption of services.

Technical Details of CVE-2023-30280

This section outlines the technical aspects of the CVE-2023-30280 vulnerability.

Vulnerability Description

The Buffer Overflow vulnerability arises due to insufficient input validation in the affected routers' firmware, rendering them susceptible to remote code execution attacks.

Affected Systems and Versions

Netgear R6900 v.1.0.2.26, R6700v3 v.1.0.4.128, and R6700 v.1.0.0.26 are confirmed to be impacted by this vulnerability.

Exploitation Mechanism

Remote attackers can exploit the getInputData parameter of the fwSchedule.cgi page to trigger the Buffer Overflow and execute arbitrary code, potentially leading to a denial of service.

Mitigation and Prevention

Here are the measures to mitigate and prevent exploitation of CVE-2023-30280.

Immediate Steps to Take

Users are advised to update their Netgear routers to the latest firmware version provided by Netgear to patch the vulnerability. Additionally, disabling remote management access can reduce the attack surface.

Long-Term Security Practices

Regularly updating router firmware, implementing strong access controls, and monitoring network traffic can enhance the overall security posture of the network.

Patching and Updates

Netgear has released security patches to address the Buffer Overflow vulnerability in the affected router models. Users should promptly apply these patches to secure their devices.