CVE-2020-27816 Explained : Impact and Mitigation

A vulnerability in elasticsearch-operator-container versions before 4.7 could allow an attacker to manipulate the openshift-logging console link, leading to arbitrary URL redirection or damage to the console link.

Understanding CVE-2020-27816

This CVE involves a flaw in the validation of the namespace for the kibana logging resource, potentially enabling unauthorized changes to the openshift-logging console link.

What is CVE-2020-27816?

The elasticsearch-operator in affected versions fails to validate the namespace for the kibana logging resource, allowing for unauthorized modification of the openshift-logging console link.

The Impact of CVE-2020-27816

The vulnerability could result in arbitrary URL redirection or damage to the openshift-logging console link, potentially leading to security risks and unauthorized access.

Technical Details of CVE-2020-27816

The technical aspects of this CVE are as follows:

Vulnerability Description

The elasticsearch-operator-container versions before 4.7 lack proper validation of the namespace for the kibana logging resource, enabling attackers to alter the openshift-logging console link.

Affected Systems and Versions

Product: openshift-logging/console
Vendor: n/a
Versions affected: Versions before elasticsearch-operator-container 4.7

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the kibana logging resource's namespace, allowing them to change the openshift-logging console link.

Mitigation and Prevention

To address CVE-2020-27816, consider the following steps:

Immediate Steps to Take

Update elasticsearch-operator-container to version 4.7 or newer.
Monitor and restrict access to the openshift-logging console.

Long-Term Security Practices

Regularly audit and review namespace permissions.
Implement strong access controls and authentication mechanisms.

Patching and Updates

Apply patches and updates provided by the vendor to fix the vulnerability and enhance system security.