Cloud Defense Logo

Products

Solutions

Company

CVE-2023-39238 : Security Advisory and Response

Learn about CVE-2023-39238, a critical format string vulnerability in ASUS RT-AX56U V2 allowing remote attackers to execute arbitrary code remotely. Update to secure versions now.

This article provides an overview of CVE-2023-39238, a format string vulnerability in ASUS RT-AX56U V2 that allows remote attackers to execute arbitrary code without privilege.

Understanding CVE-2023-39238

This section delves into the specifics of the CVE, its impact, technical details, and mitigation strategies.

What is CVE-2023-39238?

CVE-2023-39238 is a format string vulnerability found in ASUS RT-AX56U V2 due to lacking validation, enabling remote attackers to execute code or disrupt services.

The Impact of CVE-2023-39238

The vulnerability has a critical base severity score of 9.8, allowing unauthenticated attackers to perform remote arbitrary code execution with high impacts on confidentiality and integrity.

Technical Details of CVE-2023-39238

Explore the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability arises from inadequate validation of a specific value within the set_iperf3_svr.cgi module, leading to potential arbitrary code execution by remote attackers.

Affected Systems and Versions

ASUS RT-AX56U V2 with version 3.0.0.4.386_50460 is affected by this vulnerability.

Exploitation Mechanism

Unauthenticated remote attackers can exploit the vulnerability to execute arbitrary code, system operations, or disrupt services without requiring any privileged access.

Mitigation and Prevention

Learn about the immediate steps to take, long-term security practices, and patching procedures to address CVE-2023-39238.

Immediate Steps to Take

Update the affected systems to the recommended versions promptly to mitigate the vulnerability and prevent exploitation.

Long-Term Security Practices

Enforce strict input validation, regularly monitor for security updates, and implement robust security measures to safeguard against future threats.

Patching and Updates

ASUS has provided updates for the affected products:

        RT-AX55: update to version 3.0.0.4.386_51948
        RT-AX56U_V2: update to version 3.0.0.4.386_51948
        RT-AC86U: update to version 3.0.0.4.386_51915

Popular CVEs

CVE Id

Published Date

Is your System Free of Underlying Vulnerabilities?
Find Out Now