CVE-2021-20093 : Security Advisory and Response

A buffer over-read vulnerability has been identified in Wibu-Systems CodeMeter versions below 7.21a. This vulnerability could allow an unauthenticated remote attacker to expose heap memory contents or cause the CodeMeter Runtime Server to crash.

Understanding CVE-2021-20093

This section provides detailed insights into the vulnerability.

What is CVE-2021-20093?

The CVE-2021-20093 is a buffer over-read vulnerability affecting Wibu-Systems CodeMeter versions below 7.21a. It allows unauthorized remote attackers to potentially access sensitive heap memory contents or disrupt the CodeMeter Runtime Server.

The Impact of CVE-2021-20093

The impact of this vulnerability is significant as it can lead to the exposure of critical heap memory data or result in denial of service by crashing the CodeMeter Runtime Server.

Technical Details of CVE-2021-20093

Let's delve deeper into the technical aspects of the vulnerability.

Vulnerability Description

The vulnerability arises from a buffer over-read issue in Wibu-Systems CodeMeter versions lower than 7.21a, providing an opening for malicious actors to exploit heap memory disclosure.

Affected Systems and Versions

Systems running Wibu-Systems CodeMeter versions below 7.21a are vulnerable to this issue, potentially impacting a wide range of devices or applications leveraging this software.

Exploitation Mechanism

An unauthenticated remote attacker can exploit the vulnerability by specifically targeting Wibu-Systems CodeMeter versions below 7.21a, gaining the ability to read sensitive heap memory or disrupt the CodeMeter Runtime Server.

Mitigation and Prevention

Discover the necessary steps to address and prevent exploitation of this vulnerability.

Immediate Steps to Take

To mitigate the risk associated with CVE-2021-20093, users are advised to update affected systems to a secure version, implement network security measures, and monitor for any unusual activities.

Long-Term Security Practices

In the long term, organizations should prioritize regular security audits, vulnerability assessments, and employee training to enhance overall cybersecurity posture.

Patching and Updates

It is crucial to stay informed about security patches released by Wibu-Systems for CodeMeter and promptly apply them to ensure protection against known vulnerabilities.