CVE-2021-31405— Regular expression denial of service (ReDoS) in EmailField component in Vaadin 14 and 15-17
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 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:vaadin-text-field-flow 2.0.4版本至2.3.2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电子邮件地址来导致不受控制的资源消耗。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-31405
Vulnerability Information
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Vulnerability Title
Regular expression denial of service (ReDoS) in EmailField component in Vaadin 14 and 15-17
Source: CVE Program / CVE List V5
Vulnerability Description
Unsafe validation RegEx in EmailField component in com.vaadin:vaadin-text-field-flow versions 2.0.4 through 2.3.2 (Vaadin 14.0.6 through 14.4.3), and 3.0.0 through 4.0.2 (Vaadin 15.0.0 through 17.0.10) 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 flow 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
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:vaadin-text-field-flow 2.0.4版本至2.3.2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电子邮件地址来导致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 | 14.0.6 ~ * | - |
|
| Vaadin | vaadin-text-field-flow | 2.0.4 ~ * | - |
|
II. Public POCs for CVE-2021-31405
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2021-31405 (1)
-
https://github.com/vaadin/flow-components/pull/442 x_refsource_MISC
Other References for CVE-2021-31405 (1)
-
https://vaadin.com/security/cve-2021-31405 x_refsource_MISC
Same Patch Batch · Vaadin · 2021-04-23 · 13 CVEs total
| CVE-2021-31407 | 8.6 HIGH | Server classes and resources exposure in OSGi applications using Vaadin 12-14 and 19 |
| CVE-2021-31410 | 8.6 HIGH | Project sources exposure in Vaadin Designer |
| CVE-2020-36320 | 7.5 HIGH | Regular expression Denial of Service (ReDoS) in EmailValidator class in Vaadin 7 |
| CVE-2021-31408 | 6.3 MEDIUM | Server session is not invalidated when logout() helper method of Authentication module is |
| CVE-2019-25027 | 6.1 MEDIUM | Reflected cross-site scripting in default RouteNotFoundError view in Vaadin 10 and 11-13 |
| CVE-2020-36321 | 5.9 MEDIUM | Directory traversal in development mode handler in Vaadin 14 and 15-17 |
| CVE-2019-25028 | 5.4 MEDIUM | Stored cross-site scripting in Grid component in Vaadin 7 and 8 |
| CVE-2021-31403 | 4.0 MEDIUM | Timing side channel vulnerability in UIDL request handler in Vaadin 7 and 8 |
| CVE-2021-31404 | 4.0 MEDIUM | Timing side channel vulnerability in UIDL request handler in Vaadin 10, 11-14, and 15-18 |
| CVE-2021-31406 | 4.0 MEDIUM | Timing side channel vulnerability in endpoint request handler in Vaadin 15-19 |
| CVE-2020-36319 | 3.1 LOW | Potential sensitive data exposure in applications using Vaadin 15 |
| CVE-2018-25007 | 2.6 LOW | Unauthorized client-side property update in UIDL request handler in Vaadin 10 and 11 |
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Cross-site scripting in Action caption
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V. Comments for CVE-2021-31405
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