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CVE-2021-31412— Possible route enumeration in production mode via RouteNotFoundError view in Vaadin 10, 11-14, and 15-19

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 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-server存在安全漏洞，该漏洞源于默认 RouteNotFoundError 视图中的路径清理不当。

CVSS 5.3 · Medium EPSS 1.32% · P70

Possible ATT&CK Techniques 1 AI

T1595 · Active Scanning
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I. Basic Information for CVE-2021-31412

Vulnerability Information
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Vulnerability Title
Possible route enumeration in production mode via RouteNotFoundError view in Vaadin 10, 11-14, and 15-19
Source: CVE Program / CVE List V5
Vulnerability Description
Improper sanitization of path in default RouteNotFoundError view in com.vaadin:flow-server versions 1.0.0 through 1.0.14 (Vaadin 10.0.0 through 10.0.18), 1.1.0 prior to 2.0.0 (Vaadin 11 prior to 14), 2.0.0 through 2.6.1 (Vaadin 14.0.0 through 14.6.1), and 3.0.0 through 6.0.9 (Vaadin 15.0.0 through 19.0.8) allows network attacker to enumerate all available routes via crafted HTTP request when application is running in production mode and no custom handler for NotFoundException is provided.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1295
Source: CVE Program / CVE List V5
Vulnerability Title
vaadin:flow-server 输入验证错误漏洞
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:flow-server存在安全漏洞，该漏洞源于默认 RouteNotFoundError 视图中的路径清理不当。
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 10.0.0 ~ unspecified -
Vaadin flow-server 1.0.0 ~ unspecified -

II. Public POCs for CVE-2021-31412

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III. Intelligence Information for CVE-2021-31412

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Patches & Fixes for CVE-2021-31412 (1)

Other References for CVE-2021-31412 (1)

IV. Related Vulnerabilities

Same product: Vaadin
Same vendor: Vaadin
Same weakness: CWE-1295

V. Comments for CVE-2021-31412

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