CVE-2022-45937 : Vulnerability Insights and Analysis

A vulnerability has been identified in Siemens APOGEE and TALON building automation systems, allowing a low privilege authenticated attacker to download sensitive information from the affected devices.

Understanding CVE-2022-45937

This section provides an overview of the CVE-2022-45937 vulnerability in Siemens building automation systems.

What is CVE-2022-45937?

The CVE-2022-45937 vulnerability affects various versions of Siemens APOGEE and TALON building automation systems. The flaw can be exploited by a low privilege authenticated attacker with network access to the integrated web server to retrieve sensitive information containing user account credentials.

The Impact of CVE-2022-45937

The impact of this vulnerability is rated as HIGH, with a CVSS base score of 8.8. This indicates a significant risk, considering the potential exposure of critical user account credentials.

Technical Details of CVE-2022-45937

In this section, we delve into the technical aspects of the CVE-2022-45937 vulnerability.

Vulnerability Description

The vulnerability is categorized as CWE-284: Improper Access Control. It allows attackers to access sensitive information from the affected Siemens building automation systems.

Affected Systems and Versions

The following Siemens products are affected:

APOGEE PXC Compact (BACnet) - All versions < V3.5.5
APOGEE PXC Compact (P2 Ethernet) - All versions < V2.8.20
APOGEE PXC Modular (BACnet) - All versions < V3.5.5
APOGEE PXC Modular (P2 Ethernet) - All versions < V2.8.20
TALON TC Compact (BACnet) - All versions < V3.5.5
TALON TC Modular (BACnet) - All versions < V3.5.5

Exploitation Mechanism

The vulnerability can be exploited by a low privilege authenticated attacker with network access to the integrated web server of the affected devices.

Mitigation and Prevention

To mitigate the risks associated with CVE-2022-45937, users and administrators can take the following actions:

Immediate Steps to Take

Apply security patches provided by Siemens to update the affected products.
Restrict network access to the integrated web server to authorized personnel only.

Long-Term Security Practices

Regularly monitor for security advisories from Siemens and apply updates promptly.
Implement network segmentation to isolate critical devices from potentially compromised networks.

Patching and Updates

Siemens has released patches to address the CVE-2022-45937 vulnerability. Users are advised to apply the relevant updates to ensure the security of their building automation systems.