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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.3 MEDIUM
LOCAL
HIGH
NONE
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
VaadinCNA
6.3 MEDIUM
LOCAL
HIGH
NONE
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 30%
VendorProductVersion
vaadinflow
5.0.0 ≤
𝑥
< 6.0.0
vaadinflow
6.0.0 ≤
𝑥
< 6.0.5
vaadinvaadin
19.0.0 ≤
𝑥
< 19.0.4
vaadinvaadin
18.0.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/vaadin/flow/pull/10577
https://vaadin.com/security/cve-2021-31408
https://github.com/vaadin/flow/pull/10577
https://vaadin.com/security/cve-2021-31408