CVE-2021-31407 : Vulnerability Insights and Analysis

A vulnerability in OSGi integration in com.vaadin:flow-server versions 1.2.0 through 2.4.7 (Vaadin 12.0.0 through 14.4.9), and 6.0.0 through 6.0.1 (Vaadin 19.0.0) allows attackers to access application classes and resources on the server through a crafted HTTP request.

Understanding CVE-2021-31407

This section provides insights into the impact, technical details, and mitigation strategies related to CVE-2021-31407.

What is CVE-2021-31407?

CVE-2021-31407 points towards a vulnerability in Vaadin's OSGi integration that enables unauthorized access to server resources via manipulated HTTP requests.

The Impact of CVE-2021-31407

The vulnerability poses a high severity threat with a CVSS base score of 8.6, affecting confidentiality and potentially exposing sensitive information to malicious actors.

Technical Details of CVE-2021-31407

Let's delve deeper into the specific technical aspects of this vulnerability.

Vulnerability Description

The flaw in com.vaadin:flow-server versions 1.2.0 through 2.4.7 and 6.0.0 through 6.0.1 allows attackers to breach server security and access application resources.

Affected Systems and Versions

Products like Vaadin and flow-server are impacted, with specific versions vulnerable to exploitation.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specially crafted HTTP requests to the server, thereby gaining unauthorized access.

Mitigation and Prevention

Here are crucial steps to mitigate the risks associated with CVE-2021-31407.

Immediate Steps to Take

Update to the latest versions of affected products to patch the vulnerability.

Long-Term Security Practices

Implement strict server access controls and monitoring mechanisms to prevent unauthorized access.

Patching and Updates

Regularly monitor security advisories from Vaadin for any patches or updates related to the vulnerability.