CVE-2020-25198 : Security Advisory and Response

MOXA NPort IAW5000A-I/O Series is affected by a vulnerability related to session fixation, potentially allowing attackers to hijack user sessions.

Understanding CVE-2020-25198

This CVE involves a security issue in the MOXA NPort IAW5000A-I/O Series firmware version 2.1 or lower, impacting session security.

What is CVE-2020-25198?

The vulnerability arises from incorrectly implemented session fixation protections in the built-in WEB server of the affected firmware.

The Impact of CVE-2020-25198

The vulnerability has a high severity rating, with a CVSS base score of 8.8, potentially leading to unauthorized access and session hijacking.

Technical Details of CVE-2020-25198

The technical aspects of the CVE-2020-25198 vulnerability are as follows:

Vulnerability Description

The vulnerability allows attackers to exploit session fixation issues, potentially gaining unauthorized access to user sessions.

Affected Systems and Versions

Product: NPort IAW5000A-I/O
Vendor: MOXA
Versions affected: <= Version 2.1

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: High impact on confidentiality, integrity, and availability

Mitigation and Prevention

To address CVE-2020-25198, consider the following mitigation strategies:

Immediate Steps to Take

Update to the latest firmware version provided by MOXA
Monitor for any unauthorized access or unusual activities on the affected systems

Long-Term Security Practices

Regularly update firmware and software to patch known vulnerabilities
Implement network segmentation and access controls to limit exposure

Patching and Updates

MOXA has released an updated firmware version for the NPort IAW5000A-I/O Series to address this vulnerability