CVE-2023-27853 : Security Advisory and Response

This article covers the details of CVE-2023-27853, a format string vulnerability found in NETGEAR Nighthawk WiFi6 Router prior to version V1.0.10.94. The vulnerability exists in a SOAP service and could potentially allow an attacker to execute arbitrary code on the affected device.

Understanding CVE-2023-27853

CVE-2023-27853 is a significant vulnerability that affects NETGEAR Nighthawk WiFi6 Router devices, specifically those running versions prior to V1.0.10.94. This vulnerability poses a serious risk as it could enable malicious actors to execute arbitrary code on the device, potentially leading to further compromise or unauthorized access.

What is CVE-2023-27853?

The vulnerability identified as CVE-2023-27853 is a format string vulnerability in a SOAP service of NETGEAR Nighthawk WiFi6 Router devices. This type of vulnerability can be exploited by attackers to manipulate the formatting of input to execute arbitrary code on the target device.

The Impact of CVE-2023-27853

If successfully exploited, CVE-2023-27853 could allow threat actors to execute arbitrary code on the affected NETGEAR Nighthawk WiFi6 Routers. This could result in complete device compromise, data theft, unauthorized access, and potential disruptions to network operations.

Technical Details of CVE-2023-27853

The following technical details provide insights into the vulnerability, affected systems, and how it can be exploited.

Vulnerability Description

The format string vulnerability in the SOAP service of NETGEAR Nighthawk WiFi6 Router devices allows attackers to manipulate input formatting to execute arbitrary code on the affected device. This could lead to unauthorized access, data exfiltration, and further compromise of the network.

Affected Systems and Versions

The vulnerability impacts NETGEAR Nighthawk WiFi6 Router devices running versions prior to V1.0.10.94. It is crucial for users of these devices to take immediate action to mitigate the risk posed by this vulnerability.

Exploitation Mechanism

Attackers can exploit CVE-2023-27853 by sending specially crafted input through the SOAP service, taking advantage of the format string vulnerability to execute malicious code on the vulnerable device. This could be done remotely, if the SOAP service is accessible over the network.

Mitigation and Prevention

To safeguard against the risks associated with CVE-2023-27853, it is essential for affected users to implement mitigation strategies and preventive measures.

Immediate Steps to Take

Immediately update the NETGEAR Nighthawk WiFi6 Router firmware to version V1.0.10.94 or later to patch the vulnerability. Restrict access to the SOAP service to trusted entities only and monitor network traffic for any suspicious activity that could indicate exploitation attempts.

Long-Term Security Practices

Regularly update and patch network devices, including routers, to address known vulnerabilities and enhance overall security posture. Conduct regular security audits and assessments to identify and remediate any potential vulnerabilities in the network environment.

Patching and Updates

Stay informed about security advisories and updates released by the device manufacturer. Promptly apply patches and firmware updates to ensure that known vulnerabilities are mitigated and the device remains secure from exploitation attempts. Regularly review security best practices and consider implementing additional security measures to enhance network resilience.

By following these recommendations and staying proactive about security measures, users can effectively protect their devices and networks from potential threats associated with CVE-2023-27853.