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Timing Attack Affecting com.vaadin:flow-server package, versions [,1.0.14) [1.1.0,2.4.7) [3.0.0,5.0.3)

0.0
medium

Snyk CVSS

    Attack Complexity High
    Integrity High

    Threat Intelligence

    EPSS 0.04% (12th percentile)
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NVD
2.5 low

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  • Snyk ID SNYK-JAVA-COMVAADIN-1074927
  • published 15 Feb 2021
  • disclosed 26 Jan 2021
  • credit Xhelal Likaj
Report a new vulnerability Found a mistake?

Introduced: 26 Jan 2021

CVE-2021-31404 Open this link in a new tab
CWE-208 Open this link in a new tab

How to fix?

Upgrade com.vaadin:flow-server to version 1.0.14, 2.4.7, 5.0.3 or higher.

Overview

Affected versions of this package are vulnerable to Timing Attack due to using inconstant time comparison for CSRF tokens in the UIDL request handler, allowing attackers to guess a security token.