CVE-2023-3572 : Vulnerability Insights and Analysis

This CVE involves a critical vulnerability in PHOENIX CONTACT's WP 6xxx series web panels, specifically in versions prior to 4.0.10. The vulnerability allows a remote, unauthenticated attacker to exploit a specific attribute of an HTTP POST request related to date/time operations, potentially leading to full access to the device.

Understanding CVE-2023-20657

This section provides detailed insights into the nature of CVE-2023-20657.

What is CVE-2023-20657?

CVE-2023-20657 is a critical vulnerability found in PHOENIX CONTACT's WP 6xxx series web panels. It allows remote attackers to access the device using a specific attribute of an HTTP POST request related to date/time operations.

The Impact of CVE-2023-20657

The impact of CVE-2023-20657 is severe as it enables attackers to gain full access to the affected device without authentication. This could result in unauthorized control over the device, leading to potential data breaches or system compromise.

Technical Details of CVE-2023-20657

This section delves into the technical aspects of CVE-2023-20657.

Vulnerability Description

The vulnerability in PHOENIX CONTACT's WP 6xxx series web panels allows remote, unauthenticated attackers to exploit a specific attribute of an HTTP POST request related to date/time operations. This exploitation could lead to unauthorized access to the device.

Affected Systems and Versions

The affected products include WP 6070-WVPS, WP 6101-WXPS, WP 6121-WXPS, WP 6156-WHPS, WP 6185-WHPS, and WP 6215-WHPS from PHOENIX CONTACT with versions less than 4.0.10.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending a crafted HTTP POST request with malicious data specifically related to date/time operations, allowing them to gain unauthorized access to the device.

Mitigation and Prevention

This section outlines the steps to mitigate and prevent the exploitation of CVE-2023-20657.

Immediate Steps to Take

It is recommended to update the affected PHOENIX CONTACT devices to version 4.0.10 or later to patch the vulnerability. Restricting network access to the devices and monitoring for any suspicious activity can also help mitigate the risk.

Long-Term Security Practices

Implementing network segmentation, using strong authentication mechanisms, and regularly updating and patching devices are essential for enhancing the long-term security posture of the systems.

Patching and Updates

PHOENIX CONTACT has released version 4.0.10 to address the vulnerability. It is crucial for organizations to apply this patch promptly to secure their WP 6xxx series web panels and prevent potential exploitation.