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I. Basic Information for CVE-2021-31403
Vulnerability Information

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Vulnerability Title
Timing side channel vulnerability in UIDL request handler in Vaadin 7 and 8
Source: NVD (National Vulnerability Database)
Vulnerability Description
Non-constant-time comparison of CSRF tokens in UIDL request handler in com.vaadin:vaadin-server versions 7.0.0 through 7.7.23 (Vaadin 7.0.0 through 7.7.23), and 8.0.0 through 8.12.2 (Vaadin 8.0.0 through 8.12.2) allows attacker to guess a security token via timing attack
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过时间差异性导致的信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Vaadin framework 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Vaadin framework是一个应用软件。一个使用纯Java有效地构建现代Web应用程序,而无需接触低级Web技术得应用框架。 Vaadin framework 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:com.vaadin:vaadin-server versions 7.0.0 through 7.7.23 (Vaadin 7.0.0 through 7.7.23), and 8.0.0 through 8.12.2 (Vaadin 8.0.0 throug
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
VaadinVaadin 7.0.0 ~ * -
Vaadinvaadin-server 7.0.0 ~ * -
II. Public POCs for CVE-2021-31403
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III. Intelligence Information for CVE-2021-31403
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IV. Related Vulnerabilities
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