CVE-2023-46285 : What You Need to Know

A vulnerability has been identified in various Siemens products including Opcenter Quality, SIMATIC PCS neo, SINUMERIK Integrate RunMyHMI, and TIA Portal versions 14 to 18. The vulnerability could allow an attacker to cause a Denial-of-Service state by sending a crafted message to 4004/tcp.

Understanding CVE-2023-46285

This section delves into the details of the CVE-2023-46285 vulnerability, its impact, technical description, affected systems, exploitation mechanism, mitigation steps, and long-term security practices.

What is CVE-2023-46285?

CVE-2023-46285 is an improper input validation vulnerability found in Siemens products. Attackers could exploit this flaw to disrupt services and cause a Denial-of-Service condition.

The Impact of CVE-2023-46285

The vulnerability poses a high severity risk with a CVSS base score of 7.5, allowing attackers to crash affected services and trigger an auto-restart through a watchdog mechanism.

Technical Details of CVE-2023-46285

This section outlines the vulnerability description, affected systems, and the exploitation mechanism employed by threat actors.

Vulnerability Description

The vulnerability lies in the improper input validation capability of the affected Siemens products, leading to service disruption via crafted messages on 4004/tcp.

Affected Systems and Versions

Siemens products affected by CVE-2023-46285 include Opcenter Quality, SIMATIC PCS neo, SINUMERIK Integrate RunMyHMI, and TIA Portal versions 14 to 18.

Exploitation Mechanism

Threat actors can exploit this vulnerability by sending specifically crafted messages to 4004/tcp, triggering a Denial-of-Service state and forcing auto-restart of the service.

Mitigation and Prevention

In this section, you will find immediate steps to take, long-term security practices, and the importance of patching and updates in mitigating the risks associated with CVE-2023-46285.

Immediate Steps to Take

Users are advised to apply vendor-supplied patches promptly, restrict network access to vulnerable services, and monitor for any unusual network traffic patterns.

Long-Term Security Practices

Implement network segmentation, follow the principle of least privilege, conduct regular security assessments, and stay informed about emerging threats and patches.

Patching and Updates

Regularly check for security advisories from Siemens, apply patches promptly, and ensure system configurations comply with security best practices.