CVE-2021-22769 : Exploit Details and Defense Strategies

A CWE-552 vulnerability exists in Easergy T300 with firmware V2.7.1 and older, potentially exposing files or directory content to external parties when access is unrestricted.

Understanding CVE-2021-22769

This CVE-2021-22769 affects Easergy T300 devices running firmware versions up to V2.7.1, making them vulnerable to unauthorized access of files or directories.

What is CVE-2021-22769?

CVE-2021-22769 identifies a CWE-552 vulnerability in Schneider Electric's Easergy T300 devices. This flaw allows external parties to access files or directory content if access restrictions are not correctly enforced.

The Impact of CVE-2021-22769

The vulnerability could result in unauthorized disclosure of sensitive information stored on affected devices. Attackers may exploit this weakness to access critical data, compromising the confidentiality of the system.

Technical Details of CVE-2021-22769

Easergy T300 devices with firmware V2.7.1 and older are susceptible to this vulnerability.

Vulnerability Description

The flaw in Easergy T300 devices allows external parties to view files or directories if access restrictions are inadequate.

Affected Systems and Versions

Product: Easergy T300 with firmware V2.7.1 and older

Exploitation Mechanism

Attackers can exploit the vulnerability by accessing files or directory content without proper restrictions, potentially leading to unauthorized disclosure of information.

Mitigation and Prevention

It is crucial to take immediate action to secure the affected devices and prevent potential exploitation.

Immediate Steps to Take

Update Easergy T300 firmware to the latest version or apply patches provided by Schneider Electric.
Restrict access to the devices to authorized personnel only.

Long-Term Security Practices

Implement network segmentation, strong authentication mechanisms, and regular security audits to enhance overall system security.

Patching and Updates

Regularly monitor for firmware updates and security advisories from Schneider Electric to apply necessary patches and protect against known vulnerabilities.