CVE-2019-18202 : Vulnerability Insights and Analysis

WAGO Series PFC100 and PFC200 devices before firmware version 12 are vulnerable to information disclosure due to improper access control.

Understanding CVE-2019-18202

Before firmware version 12, a security vulnerability exists in WAGO Series PFC100 and PFC200 devices that could lead to potential information disclosure.

What is CVE-2019-18202?

This CVE describes the issue of improper access control on WAGO Series PFC100 and PFC200 devices, allowing remote attackers to potentially disclose information by sending crafted HTTP requests.

The Impact of CVE-2019-18202

CVSS Base Score: 5.8 (Medium Severity)
Attack Vector: Network
Attack Complexity: Low
Confidentiality Impact: Low
Integrity Impact: None
Privileges Required: None
Scope: Changed
User Interaction: None
Availability Impact: None

Technical Details of CVE-2019-18202

WAGO Series PFC100 and PFC200 devices are affected by the following:

Vulnerability Description

The vulnerability allows remote attackers to verify the presence of paths and file names through specially crafted HTTP requests.

Affected Systems and Versions

Affected Product: N/A
Affected Vendor: N/A
Affected Versions: N/A

Exploitation Mechanism

The vulnerability can be exploited by sending malicious HTTP requests to the affected devices, enabling attackers to confirm the existence of specific paths and files.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent potential exploitation of CVE-2019-18202:

Immediate Steps to Take

Update the firmware of WAGO Series PFC100 and PFC200 devices to version 12 or above.
Implement network segmentation to restrict access to vulnerable devices.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update and patch all devices and systems within the network.
Conduct security assessments and penetration testing to identify and address vulnerabilities.
Educate users and administrators about safe browsing practices and security protocols.

Patching and Updates

Apply security patches provided by WAGO for the affected devices.
Stay informed about security advisories and updates from trusted sources.