CVE-2020-28942 : Vulnerability Insights and Analysis

PrimeKey EJBCA before 7.4.3 has a vulnerability that allows unauthorized enrollment with EST when proxied through an RA over the Peers protocol. This issue can lead to unauthorized access and enrollment.

Understanding CVE-2020-28942

This CVE involves a security flaw in PrimeKey EJBCA that affects the enrollment process with EST when using a specific protocol.

What is CVE-2020-28942?

The vulnerability in PrimeKey EJBCA before version 7.4.3 allows attackers to bypass certificate restrictions and enroll with a valid client certificate through any authenticated RA connected to the CA.

The Impact of CVE-2020-28942

The vulnerability can result in unauthorized enrollment against the targeted CA, potentially leading to unauthorized access and misuse of privileges.

Technical Details of CVE-2020-28942

This section provides more technical insights into the vulnerability.

Vulnerability Description

The issue arises when enrolling with EST while proxied through an RA over the Peers protocol in PrimeKey EJBCA before version 7.4.3.

Affected Systems and Versions

Product: PrimeKey EJBCA
Versions affected: All versions before 7.4.3

Exploitation Mechanism

Attackers with trusted client certificates and authorization can exploit this vulnerability to enroll against the targeted CA.

Mitigation and Prevention

Protecting systems from CVE-2020-28942 requires immediate actions and long-term security practices.

Immediate Steps to Take

Upgrade PrimeKey EJBCA to version 7.4.3 or later to mitigate the vulnerability.
Monitor and restrict access to the enrollment process.

Long-Term Security Practices

Regularly review and update security configurations.
Implement strong authentication mechanisms for certificate enrollment.

Patching and Updates

Apply patches and updates provided by PrimeKey to address the vulnerability.