CVE-2021-38419 : Exploit Details and Defense Strategies

This CVE-2021-38419 article provides details about the Fuji Electric Tellus Lite V-Simulator and V-Server Lite vulnerabilities.

Understanding CVE-2021-38419

This section delves into the specifics of the CVE-2021-38419 vulnerability affecting Fuji Electric Tellus Lite V-Simulator.

What is CVE-2021-38419?

The CVE-2021-38419 vulnerability impacts Fuji Electric V-Server Lite and Tellus Lite V-Simulator versions before v4.0.12.0. It involves an out-of-bounds write leading to potential data corruption, system crashes, or code execution.

The Impact of CVE-2021-38419

The vulnerability has a CVSSv3.1 base score of 7.8, categorizing it as high severity. Key impacts include high confidentiality, integrity, and availability impacts, with low attack complexity and local attack vector.

Technical Details of CVE-2021-38419

Explore the technical aspects of the CVE-2021-38419 vulnerability affecting Fuji Electric products.

Vulnerability Description

The vulnerability involves an out-of-bounds write, enabling attackers to corrupt data, crash systems, or execute arbitrary code.

Affected Systems and Versions

Affected Products: V-Server Lite, Tellus Lite V-Simulator
Vendor: Fuji Electric
Vulnerable Versions: < 4.0.12.0 (custom versions)

Exploitation Mechanism

The vulnerability requires no special privileges, just user interaction, and a local attack vector, making exploitation feasible for threat actors.

Mitigation and Prevention

Learn about the steps to mitigate and prevent the CVE-2021-38419 vulnerability.

Immediate Steps to Take

Update Fuji Electric software to v4.0.12.0 Disk1 and Disk2 for both Tellus Lite and V-Server Lite.

Long-Term Security Practices

Regularly update software and apply security patches.
Monitor and restrict user interaction with sensitive systems.

Patching and Updates

Ensure all Fuji Electric software is promptly updated to the latest recommended versions.