CVE-2021-22648 : Security Advisory and Response

Ovarro TBox Incorrect Permission Assignment for Critical Resource.

Understanding CVE-2021-22648

This CVE involves Ovarro TBox, where attackers can manipulate Modbus file access functions to compromise the configuration file.

What is CVE-2021-22648?

The vulnerability allows unauthorized access to critical resources, enabling attackers to read, modify, or remove the configuration file on Ovarro TBox.

The Impact of CVE-2021-22648

With a CVSS base score of 8.8, this high-severity vulnerability can lead to the compromise of confidentiality, integrity, and availability of affected systems.

Technical Details of CVE-2021-22648

This section covers the specifics of the CVE to help users understand the vulnerability better.

Vulnerability Description

Ovarro TBox's improper permission assignment on Modbus file access functions facilitates unauthorized access to the configuration file.

Affected Systems and Versions

The vulnerability affects Ovarro TBox versions LT2, MS-CPU32, MS-CPU32-S2, RM2, and TG2.

Exploitation Mechanism

Attackers can exploit this vulnerability remotely over a network with low complexity, compromising system availability, confidentiality, and integrity.

Mitigation and Prevention

Learn how to protect your systems and mitigate the risks associated with CVE-2021-22648.

Immediate Steps to Take

Ovarro recommends affected users to update to TWinSoft version 12.5 or newer to address and prevent these vulnerabilities.

Long-Term Security Practices

Additionally, implement robust security practices, access controls, and network segmentation to enhance overall system security.

Patching and Updates

Ensure timely patching and regularly update Ovarro TBox systems to the latest versions to safeguard against potential threats.