CVE-2019-5155 : What You Need to Know

WAGO PFC200 Firmware versions 03.02.02(14), 03.01.07(13), and 03.00.39(12) are affected by a command injection vulnerability in the cloud connectivity feature.

Understanding CVE-2019-5155

This CVE involves a vulnerability in the WAGO PFC200 Firmware that allows attackers to execute operating system commands through the firmware update command.

What is CVE-2019-5155?

The vulnerability in the cloud connectivity feature of WAGO PFC200 Firmware versions 03.02.02(14), 03.01.07(13), and 03.00.39(12) enables malicious actors to inject commands into parameter values, potentially leading to unauthorized access or control.

The Impact of CVE-2019-5155

Exploiting this vulnerability can result in unauthorized execution of commands on affected systems, potentially compromising the integrity and security of the device and the network it is connected to.

Technical Details of CVE-2019-5155

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

The vulnerability allows attackers to inject operating system commands into the parameter values of the firmware update command, leading to potential unauthorized access and control.

Affected Systems and Versions

Product: WAGO PFC200 Firmware
Vendor: Wago
Affected Versions: 03.02.02(14), 03.01.07(13), 03.00.39(12)

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious commands into the parameter values of the firmware update command, gaining unauthorized access and potentially compromising the system.

Mitigation and Prevention

Protecting systems from CVE-2019-5155 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the affected WAGO PFC200 Firmware to a patched version that addresses the command injection vulnerability.
Implement network segmentation to limit the impact of potential attacks.
Monitor network traffic for any suspicious activities that may indicate exploitation attempts.

Long-Term Security Practices

Regularly update firmware and software to patch known vulnerabilities.
Conduct security assessments and penetration testing to identify and address potential weaknesses.
Educate users and administrators about secure practices to prevent successful exploitation of vulnerabilities.

Patching and Updates

Ensure timely installation of security patches and updates provided by Wago to mitigate the command injection vulnerability in the WAGO PFC200 Firmware.