CVE-2023-46590 : What You Need to Know

A vulnerability has been identified in Siemens OPC UA Modelling Editor (SiOME) (All versions < V2.8) that could allow an attacker to interfere with XML data processing and read arbitrary files on the system.

Understanding CVE-2023-46590

This section provides insights into the nature of the CVE-2023-46590 vulnerability.

What is CVE-2023-46590?

CVE-2023-46590 is an XML external entity (XXE) injection vulnerability present in Siemens OPC UA Modelling Editor (SiOME) versions prior to V2.8. It allows malicious actors to manipulate XML data processing, potentially leading to unauthorized access to sensitive files.

The Impact of CVE-2023-46590

The vulnerability poses a high severity threat with a CVSS base score of 7.5, indicating a significant risk to affected systems. An attacker exploiting this vulnerability could compromise the integrity and confidentiality of the system by reading arbitrary files.

Technical Details of CVE-2023-46590

Delve deeper into the technical aspects of CVE-2023-46590 below.

Vulnerability Description

CVE-2023-46590 is classified under CWE-611, signifying an improper restriction of XML external entity references. This flaw enables attackers to perform XML external entity injections, potentially leading to unauthorized data access.

Affected Systems and Versions

Siemens OPC UA Modelling Editor (SiOME) versions older than V2.8 are susceptible to this vulnerability. All versions preceding V2.8 are impacted, highlighting the importance of immediate action to mitigate risks.

Exploitation Mechanism

By leveraging the XXE injection in SiOME, threat actors can manipulate XML processing, tricking the application into disclosing sensitive data or executing unauthorized actions within the system.

Mitigation and Prevention

Learn how to address and prevent CVE-2023-46590 in the following section.

Immediate Steps to Take

To safeguard against potential exploits, users are advised to update Siemens OPC UA Modelling Editor (SiOME) to version 2.8 or above. Additionally, implementing proper input validation and XML parsing controls can help prevent XXE attacks.

Long-Term Security Practices

Maintaining regular security updates, conducting thorough security assessments, and educating users on safe XML data handling practices are crucial for enhancing long-term security posture.

Patching and Updates

Stay informed about security patches and updates released by Siemens to address CVE-2023-46590 and other vulnerabilities, ensuring the ongoing protection of critical systems.