CVE-2022-46354 : Exploit Details and Defense Strategies

A vulnerability has been identified in SCALANCE X204RNA and SCALANCE X204RNA EEC devices, allowing remote attackers to extract confidential session information.

Understanding CVE-2022-46354

This CVE-2022-46354 affects multiple versions of SCALANCE X204RNA and SCALANCE X204RNA EEC devices, posing a risk of unauthorized access.

What is CVE-2022-46354?

CVE-2022-46354 is a security vulnerability found in SCALANCE X204RNA and SCALANCE X204RNA EEC (HSR) devices. The issue arises due to the absence of specific security headers in the webserver, which can be exploited by remote attackers.

The Impact of CVE-2022-46354

The absence of these security headers could lead to unauthorized individuals extracting confidential session information from affected devices, potentially compromising sensitive data and system integrity.

Technical Details of CVE-2022-46354

This section delves into the specifics of the vulnerability, affected systems, and how attackers can exploit the issue.

Vulnerability Description

The vulnerability in SCALANCE X204RNA and SCALANCE X204RNA EEC devices arises from the lack of necessary security headers in the webserver, enabling remote attackers to extract confidential session information in certain scenarios.

Affected Systems and Versions

The following Siemens products are affected by CVE-2022-46354:

SCALANCE X204RNA (HSR) (All versions < V3.2.7)
SCALANCE X204RNA (PRP) (All versions < V3.2.7)
SCALANCE X204RNA EEC (HSR) (All versions < V3.2.7)
SCALANCE X204RNA EEC (PRP) (All versions < V3.2.7)
SCALANCE X204RNA EEC (PRP/HSR) (All versions < V3.2.7)

Exploitation Mechanism

Remote attackers can exploit this vulnerability by sending specific requests to the webserver of the affected SCALANCE X204RNA and SCALANCE X204RNA EEC devices, enabling them to extract confidential session data.

Mitigation and Prevention

Protecting your systems from CVE-2022-46354 requires immediate action and long-term security practices.

Immediate Steps to Take

Update the affected devices to version V3.2.7 or newer to address the vulnerability.
Implement network segmentation and access controls to limit exposure.

Long-Term Security Practices

Regularly monitor for security updates and patches from Siemens.
Conduct security assessments and penetration testing to identify and address vulnerabilities proactively.

Patching and Updates

Ensure that all SCALANCE X204RNA and SCALANCE X204RNA EEC devices are promptly patched with the latest updates provided by Siemens to mitigate the risk of exploitation.