CVE-2021-22706 Explained : Impact and Mitigation
Discover how CVE-2021-22706 allows attackers to impersonate users of Schneider Electric's EVlink City, Parking, and Smart Wallbox products. Learn mitigation steps and the impact.
A CWE-79 vulnerability has been identified in EVlink City, EVlink Parking, and EVlink Smart Wallbox products, allowing attackers to impersonate users or carry out actions on their behalf.
Understanding CVE-2021-22706
This CVE identifies a Cross-site Scripting vulnerability in Schneider Electric's charging station products.
What is CVE-2021-22706?
CVE-2021-22706 is a CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability affecting EVlink City, EVlink Parking, and EVlink Smart Wallbox products.
The Impact of CVE-2021-22706
The vulnerability could allow an attacker to impersonate users managing the charging station or perform actions on their behalf by submitting crafted malicious parameters to the charging station web server.
Technical Details of CVE-2021-22706
This section delves into the specifics of the vulnerability.
Vulnerability Description
The CWE-79 flaw arises from improper neutralization of input during web page generation, enabling Cross-site Scripting attacks in the affected Schneider Electric products.
Affected Systems and Versions
EVlink City (EVC1S22P4 / EVC1S7P4 all versions prior to R8 V3.4.0.1), EVlink Parking (EVW2 / EVF2 / EV.2 all versions prior to R8 V3.4.0.1), and EVlink Smart Wallbox (EVB1A all versions prior to R8 V3.4.0.1) are impacted.
Exploitation Mechanism
Attackers can exploit this vulnerability by submitting malicious parameters to the web server, potentially leading to user impersonation or unauthorized actions.
Mitigation and Prevention
Learn how to address and prevent CVE-2021-22706 in Schneider Electric's charging station products.
Immediate Steps to Take
Immediately update the affected products to version R8 V3.4.0.1 or later to mitigate the vulnerability.
Long-Term Security Practices
Implement robust input validation mechanisms and educate users on safe browsing practices to prevent Cross-site Scripting attacks.
Patching and Updates
Regularly monitor and apply security patches released by Schneider Electric to safeguard against known vulnerabilities.