<p>Upgrade <code>com.vaadin:vaadin-server</code> to version 8.12.3, 7.7.24 or higher.</p>

Timing Attack Affecting com.vaadin:vaadin-server package, versions [8.0.0,8.12.3) [7.0.0,7.7.24)

Snyk CVSS

Attack Complexity High

Threat Intelligence

EPSS 0.05% (16^th percentile)

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Snyk ID SNYK-JAVA-COMVAADIN-1252747
published 21 Apr 2021
disclosed 19 Apr 2021
credit Xhelal Likaj

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Introduced: 19 Apr 2021

CVE-2021-31403 Open this link in a new tab CWE-208 Open this link in a new tab

How to fix?

Upgrade com.vaadin:vaadin-server to version 8.12.3, 7.7.24 or higher.

Overview

com.vaadin:vaadin-server is a Java framework for modern Java web applications.

Affected versions of this package are vulnerable to Timing Attack. Non-constant-time comparison of CSRF tokens in the UIDL request handler allows an attacker to guess a security token via timing attack.