CVE-2023-37195 : What You Need to Know

A vulnerability has been identified in SIMATIC CP 1604, SIMATIC CP 1616, SIMATIC CP 1623, SIMATIC CP 1626, and SIMATIC CP 1628 devices by Siemens, where local attackers with administrative privileges could cause a denial of service situation on the host by insufficiently controlling continuous mapping of direct memory access requests.

Understanding CVE-2023-37195

This section provides an insight into the nature and impact of the CVE-2023-37195 vulnerability.

What is CVE-2023-37195?

CVE-2023-37195 is a vulnerability found in Siemens' SIMATIC CP devices that could be exploited by local attackers with administrative privileges to disrupt the host system, requiring a physical power cycle to restore normal operation.

The Impact of CVE-2023-37195

The impact of this vulnerability is characterized by a denial of service situation on the affected devices, potentially leading to operational disruptions and downtime.

Technical Details of CVE-2023-37195

In this section, we delve into the technical aspects of the CVE-2023-37195 vulnerability.

Vulnerability Description

The vulnerability arises from the insufficient control of direct memory access requests, allowing attackers to disrupt the affected devices and necessitating a physical reset for recovery.

Affected Systems and Versions

The vulnerability affects all versions of SIMATIC CP 1604, SIMATIC CP 1616, SIMATIC CP 1623, SIMATIC CP 1626, and SIMATIC CP 1628 devices.

Exploitation Mechanism

Local attackers with administrative privileges can exploit the vulnerability by manipulating direct memory access requests, leading to a denial of service condition on the host.

Mitigation and Prevention

This section outlines the necessary steps to mitigate and prevent the exploitation of CVE-2023-37195.

Immediate Steps to Take

Immediate actions include monitoring system activity, restricting access privileges, and applying vendor-supplied patches or workarounds to mitigate the risk of exploitation.

Long-Term Security Practices

Implementing regular security updates, conducting security training for personnel, and maintaining a proactive security posture are essential for preventing and addressing potential vulnerabilities.

Patching and Updates

Regularly checking for security advisories from Siemens and promptly applying recommended patches and updates is crucial to safeguarding the affected SIMATIC CP devices.