CVE-2023-46283 : Security Advisory and Response

A vulnerability has been identified in multiple Siemens products, leading to a potential crash of the affected application. Here's what you need to know about CVE-2023-46283.

Understanding CVE-2023-46283

This section will provide insights into the impact and technical details of CVE-2023-46283.

What is CVE-2023-46283?

CVE-2023-46283 is a vulnerability found in Siemens products including Opcenter Quality, SIMATIC PCS neo, SINUMERIK Integrate RunMyHMI/Automotive, and several versions of the Totally Integrated Automation Portal (TIA Portal). The vulnerability allows an attacker to crash the application by triggering an out of bounds write past the end of an allocated buffer on port 4002/tcp.

The Impact of CVE-2023-46283

The impact of this vulnerability is considered high with a CVSS base score of 7.5, falling under the 'High' severity rating. The issue arises from a buffer copy without checking the size of the input, leading to a classic buffer overflow scenario (CWE-120).

Technical Details of CVE-2023-46283

Let's explore the specific technical details of CVE-2023-46283.

Vulnerability Description

The vulnerability involves an out of bounds write past the end of an allocated buffer in the affected applications, potentially resulting in a crash.

Affected Systems and Versions

The following Siemens products are affected by CVE-2023-46283: Opcenter Quality (All versions), SIMATIC PCS neo (All versions < V4.1), SINUMERIK Integrate RunMyHMI /Automotive (All versions), Totally Integrated Automation Portal (TIA Portal) V14-V18.

Exploitation Mechanism

The vulnerability can be exploited by sending specific requests on port 4002/tcp, triggering the out of bounds write and leading to a crash of the corresponding service.

Mitigation and Prevention

To mitigate the risk associated with CVE-2023-46283, consider the following steps.

Immediate Steps to Take

Apply the latest security updates provided by Siemens.
Monitor network traffic for any suspicious activity on port 4002/tcp.

Long-Term Security Practices

Implement network segmentation to limit the impact of potential attacks.
Conduct regular security assessments and penetration testing to identify vulnerabilities.

Patching and Updates

Ensure all Siemens products are updated to the latest versions to address the CVE-2023-46283 vulnerability.