CVE-2021-22774 : Exploit Details and Defense Strategies
Discover the impact of CWE-759 in Schneider Electric's EVlink City, Parking, and Smart Wallbox products. Learn how attackers can access charging station user credentials.
A CWE-759 vulnerability is present in Schneider Electric's EVlink City, EVlink Parking, and EVlink Smart Wallbox products, allowing attackers to potentially access user account credentials for charging stations.
Understanding CVE-2021-22774
This CVE involves a vulnerability related to the use of a one-way hash without a salt, impacting multiple versions of Schneider Electric's charging station products.
What is CVE-2021-22774?
A CWE-759 vulnerability in EVlink City, EVlink Parking, and EVlink Smart Wallbox products could enable attackers to uncover user account credentials through dictionary attack techniques.
The Impact of CVE-2021-22774
The exploitation of this vulnerability could lead to unauthorized access to user accounts and compromise the security of electric vehicle charging stations.
Technical Details of CVE-2021-22774
This section provides insight into the vulnerability, affected systems, and the exploitation mechanism.
Vulnerability Description
The vulnerability arises from the absence of salt in a one-way hash implementation, making it easier for attackers to guess and obtain user credentials.
Affected Systems and Versions
Multiple versions of EVlink City (EVC1S22P4 / EVC1S7P4), EVlink Parking (EVW2 / EVF2 / EV.2), and EVlink Smart Wallbox (EVB1A) prior to R8 V3.4.0.1 are impacted by this vulnerability.
Exploitation Mechanism
Attackers can exploit this vulnerability using dictionary attack techniques to gain unauthorized access to charging station user account credentials.
Mitigation and Prevention
Here you will find recommendations for addressing and preventing the exploitation of CVE-2021-22774.
Immediate Steps to Take
Users are advised to apply security patches released by Schneider Electric promptly to mitigate the risk posed by this vulnerability.
Long-Term Security Practices
Implementing strong password policies, conducting regular security audits, and monitoring account activities can enhance cybersecurity resilience.
Patching and Updates
Regularly check for security updates from Schneider Electric and apply patches to ensure the safety and integrity of charging station user data.