CVE-2021-38471 Explained : Impact and Mitigation

A critical vulnerability, CVE-2021-38471, impacting AUVESY Versiondog was reported to CISA by Amir Preminger of Claroty. The vulnerability allows attackers to write data to any file, potentially leading to file modification or creation.

Understanding CVE-2021-38471

This section will cover the impact, technical details, and mitigation strategies related to CVE-2021-38471.

What is CVE-2021-38471?

CVE-2021-38471 is a severe vulnerability in AUVESY Versiondog that allows malicious actors to write data to files, enabling them to modify existing files or create new ones.

The Impact of CVE-2021-38471

With a CVSS base score of 9.1 (Critical), the vulnerability poses a high risk to system integrity and availability. The attack complexity is low, but the potential impact on data integrity is significant.

Technical Details of CVE-2021-38471

Let's delve deeper into the vulnerability details including its description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability involves multiple API function codes that enable unauthorized data writing to any file, providing attackers with the ability to tamper with or create files.

Affected Systems and Versions

All versions of AUVESY Versiondog up to and including 8.0 are impacted by CVE-2021-38471. Users of these versions should take immediate action to secure their systems.

Exploitation Mechanism

The vulnerability can be exploited remotely over a network without requiring any privileges from the user. Attackers can manipulate files without user interaction, posing a severe threat to system integrity.

Mitigation and Prevention

To safeguard systems from CVE-2021-38471, it is crucial to implement immediate steps, adopt long-term security practices, and apply relevant patches and updates.

Immediate Steps to Take

Users are advised to upgrade AUVESY Versiondog to version 8.1 or later as recommended by AUVESY to mitigate the vulnerability. Additionally, other security measures should be implemented to enhance system protection.

Long-Term Security Practices

In the long run, organizations should enforce robust security measures, conduct regular security audits, and ensure timely software updates to prevent similar vulnerabilities.

Patching and Updates

Regularly applying security patches and updates provided by vendors is essential to address vulnerabilities like CVE-2021-38471. Users should stay informed about security advisories and promptly implement patches to enhance system security.