CVE-2021-41541 Explained : Impact and Mitigation

A vulnerability has been identified in Climatix POL909 (AWB module) and Climatix POL909 (AWM module) that could lead to cross-site scripting attacks.

Understanding CVE-2021-41541

What is CVE-2021-41541?

CVE-2021-41541 is a vulnerability affecting Climatix POL909 devices, specifically the AWB and AWM modules, allowing attackers to execute cross-site scripting attacks.

The Impact of CVE-2021-41541

The vulnerability enables attackers to hijack user sessions, manipulate cookies, redirect users to malicious sites, and perform unauthorized actions through injected JavaScript code.

Technical Details of CVE-2021-41541

Vulnerability Description

The Group Management page of affected Climatix POL909 devices is susceptible to cross-site scripting (XSS) attacks.

Affected Systems and Versions

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

Exploitation Mechanism

The vulnerability allows attackers to inject malicious JavaScript code into the Group Management page, exploiting the XSS flaw.

Mitigation and Prevention

Immediate Steps to Take

Implement security patches provided by Siemens promptly.
Disable unnecessary features or services on the affected devices.
Educate users about the risks of executing unknown scripts or visiting untrusted websites.

Long-Term Security Practices

Regularly monitor and audit web application code for vulnerabilities.
Conduct security assessments and penetration testing to identify and mitigate XSS vulnerabilities.

Patching and Updates

Apply the latest updates and security patches released by Siemens to address the CVE-2021-41541 vulnerability.