CVE-2023-2071 Explained : Impact and Mitigation

This CVE-2023-2071 involves a vulnerability in Rockwell Automation's FactoryTalk View Machine Edition on the PanelView Plus that could potentially allow an unauthenticated attacker to achieve remote code execution through crafted malicious packets.

Understanding CVE-2023-2071

This section will delve into the specifics of CVE-2023-2071, including the vulnerability description, impact, technical details, and mitigation strategies.

What is CVE-2023-2071?

The vulnerability in FactoryTalk View Machine Edition on the PanelView Plus arises from improper verification of user input, enabling an attacker to execute remote code via malicious packets. The device's functionality allows the execution of exported functions from libraries, bypassing security checks and executing arbitrary code.

The Impact of CVE-2023-2071

With a base severity rating of "CRITICAL" and a CVSS v3.1 base score of 9.8, the impact of this vulnerability is significant. The vulnerability, categorized under CAPEC-641 (DLL Side-Loading), could lead to high confidentiality, integrity, and availability impacts.

Technical Details of CVE-2023-2071

This section will provide a deeper dive into the vulnerability, including its description, affected systems and versions, and exploitation mechanism.

Vulnerability Description

The vulnerability stems from the device's improper handling of user input, allowing an attacker to upload a custom library and execute unauthorized code on the device.

Affected Systems and Versions

The affected product is Rockwell Automation's FactoryTalk View Machine Edition on the PanelView Plus, specifically versions <=13.0.

Exploitation Mechanism

By utilizing a CIP class, an attacker can upload a self-made library to the device, circumventing security restrictions and executing malicious code.

Mitigation and Prevention

In response to CVE-2023-2071, immediate steps need to be taken to secure vulnerable systems and prevent exploitation.

Immediate Steps to Take

Installing security patches for affected versions is crucial. Referencing the provided patch (BF29493) for FactoryTalk View ME 12.0 and 13.0 is recommended to address the vulnerability promptly.

Long-Term Security Practices

Implementing proper input validation mechanisms and regularly updating security protocols can help mitigate similar vulnerabilities in the long term.

Patching and Updates

Regularly monitoring for security updates and promptly applying patches provided by the vendor is essential to maintain the security of the affected systems.