CVE-2021-23390 : What You Need to Know

A critical Arbitrary Code Execution vulnerability, CVE-2021-23390, has been detected in the package total4 before version 0.0.43. This vulnerability allows attackers to execute arbitrary code using the U.set() and U.get() functions.

Understanding CVE-2021-23390

CVE-2021-23390 is a critical Arbitrary Code Execution vulnerability in the total4 package.

What is CVE-2021-23390?

The package total4 before version 0.0.43 is vulnerable to Arbitrary Code Execution through the U.set() and U.get() functions.

The Impact of CVE-2021-23390

With a CVSS base score of 9.8 (Critical), this vulnerability has a high impact on confidentiality, integrity, and availability. Attackers can exploit this flaw remotely without requiring any privileges, leading to severe consequences.

Technical Details of CVE-2021-23390

This section provides detailed technical insights into CVE-2021-23390.

Vulnerability Description

The vulnerability in total4 before version 0.0.43 allows for Arbitrary Code Execution through the U.set() and U.get() functions.

Affected Systems and Versions

The vulnerability affects total4 versions before 0.0.43, making them susceptible to exploitation.

Exploitation Mechanism

Attackers can exploit this vulnerability remotely with a proof of concept, emphasizing the critical nature of the flaw.

Mitigation and Prevention

To safeguard systems from CVE-2021-23390, immediate and long-term actions need to be taken.

Immediate Steps to Take

It is crucial to update the total4 package to version 0.0.43 or newer to mitigate the risk of Arbitrary Code Execution.

Long-Term Security Practices

Implementing secure coding practices, ongoing monitoring, and regular security audits can enhance the overall security posture.

Patching and Updates

Regularly applying patches and updates to the total4 package is essential to address vulnerabilities and protect against potential exploits.