CVE-2018-5459 : Exploit Details and Defense Strategies

A vulnerability known as Improper Authentication has been identified in WAGO PFC200 Series 3S CoDeSys Runtime versions 2.3.X and 2.4.X. This flaw allows an unauthorized attacker to carry out various remote actions without authentication.

Understanding CVE-2018-5459

This CVE involves an Improper Authentication vulnerability in the WAGO PFC200 Series, enabling unauthorized remote actions without authentication.

What is CVE-2018-5459?

The vulnerability allows attackers to execute remote actions without authentication on the CoDeSys Runtime application accessible through Port 2455.

The Impact of CVE-2018-5459

Unauthorized attackers can perform actions like reading, writing, deleting files, and manipulating the PLC application without authentication.

Technical Details of CVE-2018-5459

This section provides technical insights into the vulnerability.

Vulnerability Description

The flaw in WAGO PFC200 Series 3S CoDeSys Runtime versions 2.3.X and 2.4.X enables attackers to execute remote actions without authentication.

Affected Systems and Versions

Product: WAGO PFC200 Series
Versions: 2.3.X and 2.4.X

Exploitation Mechanism

Attackers exploit the vulnerability by sending crafted TCP packets to Port 2455, allowing unauthorized remote actions.

Mitigation and Prevention

Protecting systems from CVE-2018-5459 is crucial for security.

Immediate Steps to Take

Disable unnecessary services and ports to limit attack surface
Implement network segmentation to restrict access
Monitor network traffic for suspicious activities

Long-Term Security Practices

Regularly update software and firmware to patch vulnerabilities
Conduct security assessments and penetration testing
Educate users on cybersecurity best practices

Patching and Updates

Apply patches provided by the vendor to address the vulnerability