Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2021-31409— Server session is not invalidated when logout() helper method of Authentication module is used in Vaadin 18-19

Quick assessment

Affected
Vaadin Vaadin
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

vaadin-server是Vaadin开源的一个应用软件。一个用于在Java后端上快速开发Web应用程序的平台。 Vaadin 8.0.0版本至8.12.4版本存在资源管理错误漏洞，该漏洞允许攻击者通过提交恶意的电子邮件地址来造成不受控制的资源消耗。

CVSS 7.5 · High EPSS 1.67% · P76

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2021-31409

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Server session is not invalidated when logout() helper method of Authentication module is used in Vaadin 18-19
Source: CVE Program / CVE List V5
Vulnerability Description
Unsafe validation RegEx in EmailValidator component in com.vaadin:vaadin-compatibility-server versions 8.0.0 through 8.12.4 (Vaadin versions 8.0.0 through 8.12.4) allows attackers to cause uncontrolled resource consumption by submitting malicious email addresses.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
vaadin-server 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
vaadin-server是Vaadin开源的一个应用软件。一个用于在Java后端上快速开发Web应用程序的平台。 Vaadin 8.0.0版本至8.12.4版本存在资源管理错误漏洞，该漏洞允许攻击者通过提交恶意的电子邮件地址来造成不受控制的资源消耗。
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

Vendor Product Affected Versions CPE Subscribe
Vaadin Vaadin 8.0.0 ~ * -
Vaadin vaadin-compatibility-server 8.0.0 ~ * -

II. Public POCs for CVE-2021-31409

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2021-31409

请登录查看更多情报信息。

Patches & Fixes for CVE-2021-31409 (1)

Other References for CVE-2021-31409 (2)

IV. Related Vulnerabilities

Same product: Vaadin
Same vendor: Vaadin
Same weakness: CWE-400

V. Comments for CVE-2021-31409

No comments yet

Leave a comment