CVE-2019-18261 Explained : Impact and Mitigation

Omron PLC CS, CJ, and NJ Series are affected by a vulnerability that allows repeated unsuccessful authentication attempts, increasing the risk of brute force attacks.

Understanding CVE-2019-18261

This CVE involves inadequate safeguards against multiple failed authentication attempts in Omron PLC CS, CJ, and NJ Series.

What is CVE-2019-18261?

The software in Omron PLC CS, CJ, and NJ Series lacks measures to prevent repeated unsuccessful authentication attempts within a short period, making it vulnerable to brute force attacks.

The Impact of CVE-2019-18261

This vulnerability can lead to unauthorized access to the affected systems, potentially compromising their security and integrity.

Technical Details of CVE-2019-18261

Omron PLC CS, CJ, and NJ Series are susceptible to unauthorized access due to the following:

Vulnerability Description

The software does not implement adequate protections against multiple failed authentication attempts, exposing it to brute force attacks.

Affected Systems and Versions

Omron PLC CS series, all versions
Omron PLC CJ series, all versions
Omron PLC NJ series, all versions

Exploitation Mechanism

Attackers can exploit this vulnerability by launching brute force attacks to gain unauthorized access to the affected systems.

Mitigation and Prevention

To address CVE-2019-18261, consider the following steps:

Immediate Steps to Take

Implement strong password policies
Monitor and limit the number of failed login attempts
Enable account lockout mechanisms

Long-Term Security Practices

Conduct regular security assessments and audits
Keep software and firmware up to date
Train users on secure authentication practices

Patching and Updates

Apply patches and updates provided by Omron to fix the vulnerability and enhance system security.