CVE-2021-31407 : Vulnerability in OSGi integration in com.vaadin:flow-server versions 1.2.0 throu

Vulnerability in OSGi integration in com.vaadin:flow-server versions 1.2.0 through 2.4.7 (Vaadin 12.0.0 through 14.4.9), and 6.0.0 through 6.0.1 (Vaadin 19.0.0) allows attacker to access application classes and resources on the server via crafted HTTP request.

Published 2021-04-23 16:15:09

Updated 2022-08-12 18:02:02

Source Vaadin Ltd.

View at NVD, CVE.org

Products affected by CVE-2021-31407

Vaadin » Vaadin
Versions from including (>=) 12.0.0 and before (<) 14.4.10
cpe:2.3:a:vaadin:vaadin:*:*:*:*:*:*:*:*
Matching versions
Vaadin » Vaadin » Version: 19.0.0
cpe:2.3:a:vaadin:vaadin:19.0.0:-:*:*:*:*:*:*
Matching versions
Vaadin » Flow
Versions from including (>=) 1.2.0 and before (<) 2.4.8
cpe:2.3:a:vaadin:flow:*:*:*:*:*:*:*:*
Matching versions
Vaadin » Flow
Versions from including (>=) 6.0.0 and before (<) 6.0.2
cpe:2.3:a:vaadin:flow:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2021-31407

EPSS FAQ

1.80%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 81 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-31407

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:P/I:N/A:N	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: None Availability Impact: None
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: None Availability: None
8.6	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N	3.9	4.0	Vaadin Ltd.
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Changed Confidentiality: High Integrity: None Availability: None

CWE ids for CVE-2021-31407

CWE-402 Transmission of Private Resources into a New Sphere ('Resource Leak')

The product makes resources available to untrusted parties when those resources are only intended to be accessed by the product.

Assigned by: security@vaadin.com (Secondary)
CWE-668 Exposure of Resource to Wrong Sphere

The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-31407

https://github.com/vaadin/osgi/issues/50

Vaadin OSGi applications should not expose relevant classpath content as static resources · Issue #50 · vaadin/osgi · GitHub
Patch;Third Party Advisory
https://github.com/vaadin/flow/pull/10269

fix: avoid exposing ServletContext resources via StaticFileServer (#10261) by denis-anisimov · Pull Request #10269 · vaadin/flow · GitHub
Patch;Third Party Advisory
https://github.com/vaadin/flow/pull/10229

refactor: use StaticFileHandler as a service by denis-anisimov · Pull Request #10229 · vaadin/flow · GitHub
Patch;Third Party Advisory
https://vaadin.com/security/cve-2021-31407

CVE-2021-31407: Server classes and resources exposure in OSGi applications using Vaadin 12-14 and 19
Vendor Advisory

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Vulnerability Details : CVE-2021-31407

Products affected by CVE-2021-31407

Exploit prediction scoring system (EPSS) score for CVE-2021-31407

CVSS scores for CVE-2021-31407

CWE ids for CVE-2021-31407

References for CVE-2021-31407