CVE-2020-36382 : Vulnerability Insights and Analysis

OpenVPN Access Server 2.7.3 to 2.8.7 allows remote attackers to trigger an assert during the user authentication phase via incorrect authentication token data, resulting in a denial of service.

Understanding CVE-2020-36382

This CVE involves a vulnerability in OpenVPN Access Server versions 2.7.3 to 2.8.7 that can be exploited by remote attackers.

What is CVE-2020-36382?

CVE-2020-36382 is a security flaw in OpenVPN Access Server that allows attackers to cause a denial of service by manipulating authentication token data during the user authentication phase.

The Impact of CVE-2020-36382

The vulnerability can be exploited remotely, potentially leading to a denial of service condition on affected systems.

Technical Details of CVE-2020-36382

OpenVPN Access Server vulnerability details.

Vulnerability Description

Type: Improper Check for Unusual or Exceptional Conditions (CWE-754)
Description: Attackers can trigger an assert during user authentication by providing incorrect token data.

Affected Systems and Versions

Product: OpenVPN Access Server
Versions Affected: 2.7.3 to 2.8.7

Exploitation Mechanism

Attackers exploit the vulnerability by providing incorrect authentication token data during the user authentication phase.

Mitigation and Prevention

Protecting systems from CVE-2020-36382.

Immediate Steps to Take

Update OpenVPN Access Server to a patched version.
Monitor network traffic for any suspicious activity.
Implement strong authentication mechanisms.

Long-Term Security Practices

Regularly update and patch software to prevent vulnerabilities.
Conduct security audits and penetration testing to identify weaknesses.
Educate users on secure authentication practices.

Patching and Updates

Apply security updates provided by OpenVPN to address the vulnerability.