CVE-2021-22642 : Vulnerability Insights and Analysis

Ovarro TBox systems are vulnerable to an uncontrolled resource consumption issue, allowing attackers to crash the system using specially crafted invalid Modbus frames.

Understanding CVE-2021-22642

This CVE identifies vulnerabilities in Ovarro TBox systems that could be exploited by attackers to disrupt system operations.

What is CVE-2021-22642?

The CVE-2021-22642 vulnerability allows attackers to crash Ovarro TBox systems by sending specially crafted invalid Modbus frames.

The Impact of CVE-2021-22642

The impact of this vulnerability is rated as high, with an attack vector of network and a base score of 7.5.

Technical Details of CVE-2021-22642

The technical details of CVE-2021-22642 include:

Vulnerability Description

An attacker could use specially crafted invalid Modbus frames to crash the Ovarro TBox system.

Affected Systems and Versions

Affected versions include TBox LT2, MS-CPU32, MS-CPU32-S2, RM2, and TG2.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending malicious Modbus frames to the TBox system, causing a resource consumption issue.

Mitigation and Prevention

To mitigate CVE-2021-22642, follow these steps:

Immediate Steps to Take

Ovarro recommends affected users to update to version 12.5 or later of TWinSoft to address these vulnerabilities.

Long-Term Security Practices

Implement network segmentation and access controls to prevent unauthorized access to TBox systems.

Patching and Updates

Regularly check for and apply security patches and updates provided by Ovarro to protect against known vulnerabilities.