CVE-2023-43627 : Vulnerability Insights and Analysis

A path traversal vulnerability in the firmware of FURUNO SYSTEMS Co.,Ltd.'s ACERA 1320 and ACERA 1310 allows an authenticated attacker to manipulate critical system files. This CVE was published on October 3, 2023, by JPCERT.

Understanding CVE-2023-43627

This section delves into the details of the CVE-2023-43627 vulnerability and its implications.

What is CVE-2023-43627?

The CVE-2023-43627 is a path traversal vulnerability found in the firmware versions of ACERA 1320 and ACERA 1310, enabling an attacker to modify essential information by sending specific requests.

The Impact of CVE-2023-43627

The vulnerability allows a network-adjacent authenticated attacker to alter critical information, such as system files, when the affected products are operating in ST (Standalone) mode.

Technical Details of CVE-2023-43627

This section provides a more in-depth look into the technical aspects of CVE-2023-43627.

Vulnerability Description

The vulnerability arises from a path traversal issue in the firmware versions of ACERA 1320 and ACERA 1310, specifically in firmware ver.01.26 and earlier.

Affected Systems and Versions

Vendor: FURUNO SYSTEMS Co.,Ltd.
Affected Products:
ACERA 1320
ACERA 1310
Vulnerable Versions: firmware ver.01.26 and earlier

Exploitation Mechanism

An authenticated attacker positioned within the network adjacency can exploit this vulnerability by sending a crafted request to manipulate critical system files.

Mitigation and Prevention

Learn about the steps you can take to mitigate and prevent the exploitation of CVE-2023-43627.

Immediate Steps to Take

Update the firmware to a non-vulnerable version provided by FURUNO SYSTEMS Co.,Ltd.
Restrict network access to vulnerable devices.

Long-Term Security Practices

Regularly monitor and audit network traffic for suspicious activities.
Implement network segmentation to limit the impact of potential attacks.

Patching and Updates

Keep abreast of official security advisories and promptly apply patches or updates to mitigate known vulnerabilities.