CVE-2022-25755 : What You Need to Know

A vulnerability has been identified in various Siemens SCALANCE devices, allowing remote attackers to extract confidential session information due to missing security headers in the webserver.

Understanding CVE-2022-25755

This CVE affects multiple SCALANCE devices manufactured by Siemens, potentially exposing them to security risks.

What is CVE-2022-25755?

The vulnerability in CVE-2022-25755 is related to a missing security header in the webserver of affected Siemens SCALANCE devices, which could be exploited by attackers to access sensitive session data.

The Impact of CVE-2022-25755

With this vulnerability, remote attackers could gain unauthorized access to confidential information on the affected SCALANCE devices, posing a significant security risk to organizations using these products.

Technical Details of CVE-2022-25755

Below are the technical details related to this CVE:

Vulnerability Description

The issue arises from the absence of specific security headers in the webserver of the impacted Siemens SCALANCE devices, creating an opportunity for attackers to intercept session data.

Affected Systems and Versions

All versions of SCALANCE X302-7 EEC, SCALANCE X304-2FE, SCALANCE X306-1LD FE, and several other models below V4.1.4 are affected by this vulnerability.

Exploitation Mechanism

Exploiting this vulnerability involves leveraging the lack of proper security headers in the webserver of the impacted SCALANCE devices to intercept sensitive session information.

Mitigation and Prevention

To address CVE-2022-25755 and enhance the security of Siemens SCALANCE devices, consider the following measures:

Immediate Steps to Take

Implement firewall rules to restrict unauthorized access
Monitor network traffic for any suspicious activity

Long-Term Security Practices

Regularly update firmware to the latest patched version
Conduct security assessments and audits of SCALANCE devices

Patching and Updates

Ensure that all affected SCALANCE devices are updated to version V4.1.4 or later to eliminate the security vulnerability.