CVE-2021-41543 : Security Advisory and Response

A vulnerability has been identified in Climatix POL909 (AWB module) and Climatix POL909 (AWM module) versions < V11.44 and < V11.36 respectively, allowing unauthorized access to sensitive files.

Understanding CVE-2021-41543

This CVE involves an information disclosure vulnerability in the handling of log files in the web application of the affected Siemens devices.

What is CVE-2021-41543?

The vulnerability in Climatix POL909 (AWB module) and Climatix POL909 (AWM module) allows logged-in users to access sensitive files due to improper access control.

The Impact of CVE-2021-41543

The vulnerability poses a risk of exposing sensitive information to unauthorized users, potentially leading to data breaches and compromise of critical system data.

Technical Details of CVE-2021-41543

This section provides technical details regarding the vulnerability.

Vulnerability Description

The vulnerability lies in the inadequate protection of log files in the web application, enabling unauthorized users to view sensitive information.

Affected Systems and Versions

Product: Climatix POL909 (AWB module)
Vendor: Siemens
Affected Versions: All versions < V11.44
Product: Climatix POL909 (AWM module)
Vendor: Siemens
Affected Versions: All versions < V11.36

Exploitation Mechanism

The vulnerability allows authenticated users to exploit the improper access control to view log files containing sensitive data.

Mitigation and Prevention

Addressing and preventing the vulnerability is crucial for system security.

Immediate Steps to Take

Monitor and restrict access to log files containing sensitive information.
Apply the latest security patches provided by Siemens.

Long-Term Security Practices

Regularly review and update access controls for sensitive files.
Conduct security training for users on data protection practices.

Patching and Updates

Update the Climatix POL909 (AWB module) to version V11.44 or later.
Update the Climatix POL909 (AWM module) to version V11.36 or later.