CVE-2023-39429 : Exploit Details and Defense Strategies

This article provides detailed information on CVE-2023-39429, a cross-site scripting vulnerability affecting FURUNO SYSTEMS wireless LAN access point devices.

Understanding CVE-2023-39429

CVE-2023-39429 is a cross-site scripting (XSS) vulnerability that allows an authenticated user to inject an arbitrary script via a crafted configuration in FURUNO SYSTEMS wireless LAN access point devices.

What is CVE-2023-39429?

The CVE-2023-39429 vulnerability impacts various FURUNO SYSTEMS products, such as ACERA 1210, ACERA 1150i, ACERA 1150w, ACERA 1110, ACERA 1020, ACERA 1010, ACERA 950, ACERA 850F, ACERA 900, ACERA 850M, ACERA 810, and ACERA 800ST, running in ST(Standalone) mode.

The Impact of CVE-2023-39429

An attacker could exploit this vulnerability to inject malicious scripts, leading to unauthorized actions or data theft on affected devices. It poses a significant risk to the confidentiality and integrity of data transmitted over compromised access points.

Technical Details of CVE-2023-39429

The vulnerability allows an authenticated user to perform cross-site scripting attacks by injecting malicious scripts via a specially crafted configuration on vulnerable FURUNO SYSTEMS wireless LAN access point devices.

Vulnerability Description

This CVE affects multiple FURUNO SYSTEMS products with specific firmware versions, enabling attackers to execute arbitrary scripts in the context of authenticated users.

Affected Systems and Versions

Products like ACERA 1210, ACERA 1150i, ACERA 1150w, and others with firmware versions preceding certain levels are vulnerable to this XSS issue.

Exploitation Mechanism

The vulnerability is exploited by authenticated users injecting crafted configurations, which can execute malicious scripts, compromising the security of the affected devices.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks associated with CVE-2023-39429 and implement long-term security measures to prevent similar vulnerabilities.

Immediate Steps to Take

Users should update the firmware of affected FURUNO SYSTEMS access points to versions that address the XSS vulnerability, and monitor network traffic for any suspicious activities.

Long-Term Security Practices

Implement security best practices, such as network segmentation, regular security audits, and employee training on identifying and reporting potential security threats.

Patching and Updates

Regularly check for firmware updates from FURUNO SYSTEMS and apply patches promptly to safeguard access points from known vulnerabilities.