CVE-2020-8953 : Security Advisory and Response

OpenVPN Access Server 2.8.x before 2.8.1 allows LDAP authentication bypass (except when a user is enrolled in two-factor authentication).

Understanding CVE-2020-8953

OpenVPN Access Server 2.8.x before 2.8.1 is vulnerable to LDAP authentication bypass under specific conditions.

What is CVE-2020-8953?

CVE-2020-8953 is a vulnerability in OpenVPN Access Server 2.8.x that enables LDAP authentication bypass, except when a user is enrolled in two-factor authentication.

The Impact of CVE-2020-8953

This vulnerability could allow unauthorized access to the OpenVPN Access Server, compromising the security and confidentiality of the system and data.

Technical Details of CVE-2020-8953

OpenVPN Access Server 2.8.x before 2.8.1 is susceptible to LDAP authentication bypass, posing a security risk.

Vulnerability Description

The issue allows attackers to bypass LDAP authentication, potentially gaining unauthorized access to the system.

Affected Systems and Versions

Product: OpenVPN Access Server
Vendor: N/A
Versions affected: 2.8.x before 2.8.1

Exploitation Mechanism

Attackers can exploit this vulnerability to bypass LDAP authentication, gaining unauthorized access to the system.

Mitigation and Prevention

Immediate action is necessary to secure systems against CVE-2020-8953.

Immediate Steps to Take

Update OpenVPN Access Server to version 2.8.1 or later to mitigate the LDAP authentication bypass vulnerability.
Enroll users in two-factor authentication to add an extra layer of security.

Long-Term Security Practices

Regularly monitor and update security patches for OpenVPN Access Server.
Implement strong authentication mechanisms and access controls to prevent unauthorized access.
Conduct security audits and assessments to identify and address potential vulnerabilities.

Patching and Updates

Ensure timely installation of security patches and updates to address known vulnerabilities and enhance system security.