CVE-2022-22511 Explained : Impact and Mitigation
Discover how CVE-2022-22511 affects WAGO PLCs, allowing attackers to exploit reflected XSS vulnerabilities to access confidential information. Learn the impact, technical details, and mitigation steps!
Various WAGO PLCs are vulnerable to reflected XSS attacks, allowing authorized attackers to access confidential information on connected PCs. Learn about the impact, technical details, and mitigation steps.
Understanding CVE-2022-22511
This CVE addresses vulnerabilities in WAGO PLCs that can lead to reflected XSS attacks, potentially compromising sensitive data.
What is CVE-2022-22511?
The CVE-2022-22511 vulnerability affects various WAGO products, exposing configuration pages to reflected XSS attacks. Attackers with user privileges can exploit this to access confidential information after compromising the system.
The Impact of CVE-2022-22511
With a CVSS base score of 5.4 (Medium Severity), the vulnerability poses a moderate risk. The attack complexity is low, requiring network access and user interaction. While the confidentiality and integrity impacts are low, the exploit does not affect availability.
Technical Details of CVE-2022-22511
The vulnerability arises from the exposure of configuration pages to reflected XSS attacks. Authorized attackers can leverage this to gain unauthorized access to confidential information on connected PCs.
Vulnerability Description
Various WAGO PLCs, including Compact Controller CC100, Edge Controller, Series PFC100, and Series PFC200, are affected by reflected XSS vulnerabilities, allowing attackers to compromise user data.
Affected Systems and Versions
The vulnerability impacts devices running firmware versions less than FW22, particularly FW16 (custom version).
Exploitation Mechanism
Attackers with user privileges exploit the vulnerable configuration pages to execute reflected XSS attacks, enabling them to access confidential information.
Mitigation and Prevention
To secure the affected WAGO products, immediate actions and long-term security practices are recommended.
Immediate Steps to Take
Install FW version >=FW22 (planned for the end of Q2/22) to mitigate the vulnerability immediately.
Long-Term Security Practices
Regularly update and patch firmware on WAGO PLCs to prevent future vulnerabilities and enhance overall system security.
Patching and Updates
Stay informed about firmware updates and security advisories from WAGO to address emerging threats effectively.