CVE-2021-22822 : Vulnerability Insights and Analysis

A CWE-79 Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) vulnerability has been identified in the charging station web servers, allowing attackers to impersonate users or carry out actions on their behalf. This vulnerability affects EVlink City EVC1S22P4 / EVC1S7P4, EVlink Parking EVW2 / EVF2 / EVP2PE, and EVlink Smart Wallbox EVB1A versions prior to R8 V3.4.0.2.

Understanding CVE-2021-22822

This section provides details about the CVE-2021-22822 vulnerability.

What is CVE-2021-22822?

CVE-2021-22822 is a Cross-site Scripting vulnerability that enables attackers to exploit malicious parameters on the charging station web server, posing as users or performing unauthorized actions.

The Impact of CVE-2021-22822

This vulnerability can lead to unauthorized access to charging station functions and manipulation of user actions, posing a significant security risk to the affected products.

Technical Details of CVE-2021-22822

Explore the technical aspects associated with CVE-2021-22822 below.

Vulnerability Description

The vulnerability stems from improper neutralization of input during web page generation, allowing threat actors to carry out malicious activities through the web server.

Affected Systems and Versions

EVlink City EVC1S22P4 / EVC1S7P4, EVlink Parking EVW2 / EVF2 / EVP2PE, and EVlink Smart Wallbox EVB1A versions prior to R8 V3.4.0.2 are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by submitting crafted malicious parameters to the charging station web server, enabling them to impersonate users or conduct unauthorized actions.

Mitigation and Prevention

Learn how to address and prevent CVE-2021-22822 from affecting your systems.

Immediate Steps to Take

Immediately update affected products to version R8 V3.4.0.2 to mitigate the risk of exploitation and unauthorized access.

Long-Term Security Practices

Implement robust security measures such as input validation, output encoding, and continuous monitoring to enhance the overall security posture of the charging station infrastructure.

Patching and Updates

Regularly apply security patches and updates provided by the vendor to address known vulnerabilities and ensure the security of the charging station systems.