Server session is not invalidated when logout() helper method of Authentication module is used in Vaadin 18-19
CVE-2021-31408

6.3MEDIUM

Key Information:

Vendor

Vaadin

Status
Vaadin
Flow-client
Vendor
CVE Published:
23 April 2021

What is CVE-2021-31408?

Authentication.logout() helper in com.vaadin:flow-client versions 5.0.0 prior to 6.0.0 (Vaadin 18), and 6.0.0 through 6.0.4 (Vaadin 19.0.0 through 19.0.3) 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.

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Deploy the Patch

Affected Version(s)

flow-client 5.0.0

Vaadin 18.0.0

References

https://vaadin.com/security/cve-2021-31408
x_refsource_MISC
https://github.com/vaadin/flow/pull/10577
x_refsource_MISC

CVSS V3.1

Score:
6.3
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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