CVE:CVE-2021-31404
CNNVD:CNNVD-202104-1843
Vaadin flow是一个应用软件。Vaadin平台的Java框架，用于构建外观美观，性能良好并让您和您的用户感到满意的现代网站。
Vaadin flow 存在安全漏洞，该漏洞允许攻击者通过定时攻击猜测安全令牌。以下产品及版本受到影响：flow-server versions 1.0.0 through 1.0.13 (Vaadin 10.0.0 through 10.0.16), 1.1.0 prior to 2.0.0 (Vaadin 11 prior to 14), 2.0.0 through 2.4.6 (Vaadin 14.0.0 through 14.4.6), 3.0.0 prior to 5.0.0 (Vaadin 15 prior to 18), and 5.0.0 through 5.0.2 (Vaadin 18.0.0 through 18.0.5)。
solution:Upgrade vaadin flow to a higher version than 1.0.14,2.0.0,2.4.7,5.0.0,5.0.3,and avoid the version [1.0.0,1.0.14),[1.1.0,2.0.0),[2.0.0,2.4.7),[3.0.0,5.0.0),[5.0.0,5.0.3); Upgrade vaadin vaadin to a higher version than 10.0.17,14.0.0,14.4.7,17.0.0,18.0.6,and avoid the version [10.0.0,10.0.17),[11.0.0,14.0.0),[14.0.0,14.4.7),[15.0.0,17.0.0),[18.0.0,18.0.6)