CVE-2023-1049 : Exploit Details and Defense Strategies

This CVE involves an improper control of generation of code ('Code Injection') vulnerability that poses a risk of executing malicious code when an unsuspecting user loads a project file from the local filesystem into the HMI.

Understanding CVE-2023-1049

This section will delve into the details of CVE-2023-1049, including its impact, technical description, affected systems, exploitation mechanism, and mitigation strategies.

What is CVE-2023-1049?

CVE-2023-1049 relates to an improper control of generation of code ('Code Injection') vulnerability present in certain products offered by Schneider Electric. This vulnerability could potentially enable the execution of malicious code when a user unwittingly loads a project file from the local filesystem into the HMI (Human-Machine Interface) device.

The Impact of CVE-2023-1049

The high severity vulnerability with a CVSS base score of 7.8 has a significant impact on confidentiality, integrity, and availability. It could lead to the execution of arbitrary code by attackers, compromising the affected systems and potentially causing severe consequences for the users and organizations utilizing the vulnerable products.

Technical Details of CVE-2023-1049

In this section, we will explore the technical aspects of CVE-2023-1049, including vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability identified as CWE-94 allows for improper control of the generation of code, specifically 'Code Injection.' This flaw could be exploited by attackers to run malicious code by manipulating project files loaded into the HMI from the local filesystem.

Affected Systems and Versions

The products impacted by CVE-2023-1049 include EcoStruxure™ Operator Terminal Expert version 3.3 SP1 and earlier, as well as Pro-face BLUE version 3.3 SP1 and prior.

Exploitation Mechanism

With a CVSS v3.1 base score of 7.8, this vulnerability has a low attack complexity, requiring no special privileges for exploitation. However, user interaction is necessary, making it vital for users to be cautious while handling project files on HMI devices.

Mitigation and Prevention

Understanding the severity of CVE-2023-1049, it is crucial to implement appropriate measures to mitigate and prevent its exploitation.

Immediate Steps to Take

Users and organizations should exercise caution when loading project files into HMIs, especially from local filesystems. It is advisable to restrict access to critical systems and maintain stringent security measures to prevent unauthorized code execution.

Long-Term Security Practices

Implementing robust security practices, such as regular security audits, network segmentation, and user awareness training, can enhance overall cybersecurity posture and help prevent potential code injection vulnerabilities in the future.

Patching and Updates

It is essential for users to apply security patches and updates provided by Schneider Electric promptly. Regularly monitoring for security advisories and implementing the latest patches can help mitigate the risk associated with CVE-2023-1049 and ensure the security of the affected systems.