CVE-2023-49957 : Vulnerability Insights and Analysis

A vulnerability in Dalmann OCPP.Core version 1.3.0 allows for multiple transactions with the same connectorId and idTag, potentially leading to transaction management and billing errors.

Understanding CVE-2023-49957

This CVE identifies a security flaw in Dalmann OCPP.Core, impacting transaction handling for electric vehicles using the Open Charge Point Protocol (OCPP).

What is CVE-2023-49957?

The issue in OCPP.Core allows multiple transactions with the same connectorId and idTag when ConcurrentTx status is expected, leading to possible critical transaction and billing errors.

The Impact of CVE-2023-49957

Exploitation of this vulnerability could result in inaccurate billing, transaction errors, and potentially unauthorized charging of electric vehicles.

Technical Details of CVE-2023-49957

This section delves into the specifics of the vulnerability.

Vulnerability Description

The vulnerability permits concurrent transactions with the same connectorId and idTag, contrary to expected behavior, which can lead to critical transaction and billing errors.

Affected Systems and Versions

The issue affects Dalmann OCPP.Core version 1.3.0 for OCPP, specifically in managing transactions for electric vehicles.

Exploitation Mechanism

Attackers could exploit this flaw to manipulate transaction data, leading to erroneous billing and potential financial losses.

Mitigation and Prevention

Here are the steps to mitigate the risk posed by CVE-2023-49957.

Immediate Steps to Take

Users are advised to update to the latest version of OCPP.Core, where the vulnerability has been patched to prevent concurrent transactions with the same connectorId and idTag.

Long-Term Security Practices

Ensure regular updates and security audits of OCPP-related systems to prevent exploitation of known vulnerabilities.

Patching and Updates

Stay informed about security patches and updates released by Dalmann to address vulnerabilities like CVE-2023-49957.