CVE-2020-10718 : Security Advisory and Response

A flaw in Wildfly before wildfly-embedded-13.0.0.Final exposes the Thread Context Classloader (TCCL) through the embedded managed process API, allowing bypassing of the security manager and posing a threat to confidentiality.

Understanding CVE-2020-10718

This CVE identifies a vulnerability in Wildfly that could lead to a confidentiality breach.

What is CVE-2020-10718?

The vulnerability in Wildfly exposes the TCCL through a public method in the embedded managed process API, enabling a security manager bypass.

The Impact of CVE-2020-10718

The primary risk associated with this vulnerability is the compromise of confidentiality due to the exposed TCCL setting.

Technical Details of CVE-2020-10718

This section delves into the technical aspects of the vulnerability.

Vulnerability Description

The flaw in Wildfly allows the TCCL to be exposed through a public method, facilitating a security manager bypass.

Affected Systems and Versions

Product: Wildfly
Versions affected: before wildfly-embedded-13.0.0.Final

Exploitation Mechanism

The vulnerability can be exploited by leveraging the exposed TCCL setting to bypass the security manager.

Mitigation and Prevention

Protecting systems from CVE-2020-10718 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Wildfly to version wildfly-embedded-13.0.0.Final or later.
Monitor for any unauthorized access or unusual activities.

Long-Term Security Practices

Regularly review and update security configurations.
Conduct security audits to identify and address vulnerabilities.

Patching and Updates

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