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Access Restriction Bypass Affecting com.vaadin:flow-server Open this link in a new tab package, versions [5.0.0,6.0.5)

0.0
medium

  • Attack Complexity

    High

  • User Interaction

    Required

  • Confidentiality

    High

  • Integrity

    High

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  • snyk-id

    SNYK-JAVA-COMVAADIN-1255583

  • published

    26 Apr 2021

  • disclosed

    22 Apr 2021

  • credit

    Unknown

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Introduced: 22 Apr 2021

CVE-2021-31408 Open this link in a new tab
CWE-287 Open this link in a new tab

How to fix?

Upgrade com.vaadin:flow-server to version 6.0.5 or higher.

Overview

Affected versions of this package are vulnerable to Access Restriction Bypass. Authentication.logout() helper uses incorrect HTTP method, which, in combination with Spring Security CSRF protection, allows local attackers to access Fusion endpoints after the user attempted to log out.