CVE-2021-31408

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

Severity Score

7.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

El asistente Authentication.logout() en com.vaadin:flow-client versiones 5.0.0 anteriores a 6.0.0 (Vaadin 18) y versiones 6.0.0 hasta 6.0.4 (versiones Vaadin 19.0.0 hasta 19.0.3) usan un método HTTP incorrecto , que, en combinación con la protección CSRF de Spring Security, permite a atacantes locales acceder a endpoints de Fusion después de que el usuario intenta cerrar la sesión

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Attack Vector

Local

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-04-15 CVE Reserved
2021-04-23 CVE Published
2024-01-07 EPSS Updated
2024-09-17 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-613: Insufficient Session Expiration

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://github.com/vaadin/flow/pull/10577	2021-05-04

URL	Date	SRC
https://vaadin.com/security/cve-2021-31408	2021-05-04

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Vaadin Search vendor "Vaadin"		Flow Search vendor "Vaadin" for product "Flow"				>= 5.0.0 < 6.0.0 Search vendor "Vaadin" for product "Flow" and version " >= 5.0.0 < 6.0.0"		-		Affected
Vaadin Search vendor "Vaadin"		Flow Search vendor "Vaadin" for product "Flow"				>= 6.0.0 < 6.0.5 Search vendor "Vaadin" for product "Flow" and version " >= 6.0.0 < 6.0.5"		-		Affected
Vaadin Search vendor "Vaadin"		Vaadin Search vendor "Vaadin" for product "Vaadin"				>= 19.0.0 < 19.0.4 Search vendor "Vaadin" for product "Vaadin" and version " >= 19.0.0 < 19.0.4"		-		Affected
Vaadin Search vendor "Vaadin"		Vaadin Search vendor "Vaadin" for product "Vaadin"				18.0.0 Search vendor "Vaadin" for product "Vaadin" and version "18.0.0"		-		Affected