CVE-2021-34592 : Vulnerability Insights and Analysis

A command injection vulnerability, tracked as CVE-2021-34592, has been discovered in Bender/ebee Charge Controllers. This vulnerability allows an authenticated attacker to execute arbitrary shell commands through the web interface, posing a high risk to confidentiality, integrity, and availability.

Understanding CVE-2021-34592

This section delves into what CVE-2021-34592 entails, its impact, technical details, and mitigation strategies.

What is CVE-2021-34592?

CVE-2021-34592 is a command injection vulnerability in Bender/ebee Charge Controllers. Attackers with authenticated access can inject malicious shell commands via the web interface.

The Impact of CVE-2021-34592

The vulnerability has been assigned a CVSS base score of 8.8, indicating a high severity level. It poses a significant threat to confidentiality, integrity, and availability, with a low level of privileges required for exploitation.

Technical Details of CVE-2021-34592

This section covers specific technical aspects of the vulnerability, including its description, affected systems, and the exploitation mechanism.

Vulnerability Description

In Bender/ebee Charge Controllers, unauthorized users can input shell commands through certain fields in the web interface, leading to command injection attacks.

Affected Systems and Versions

The vulnerability affects multiple versions of Charge Controllers, including CC612, CC613, ICC15xx, and ICC16xx up to specific versions such as 5.11.x, 5.12.x, 5.13.x, and 5.20.x.

Exploitation Mechanism

An authenticated attacker can exploit this vulnerability by inserting malicious shell commands into input fields on the web interface, enabling the execution of arbitrary commands.

Mitigation and Prevention

In this section, proactive measures to mitigate the risks associated with CVE-2021-34592 are discussed.

Immediate Steps to Take

Organizations are advised to implement access controls, input validation mechanisms, and regular security assessments to detect and prevent command injection vulnerabilities.

Long-Term Security Practices

It is crucial to stay updated with security patches, conduct security awareness training, and perform periodic security audits to enhance overall security posture.

Patching and Updates

Bender/ebee vendors should release security patches promptly to address the command injection vulnerability and provide guidance on secure configuration practices.