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

5.3MEDIUM

Key Information:

Vendor

Vaadin

Status
Vaadin
Flow-server
Vendor
CVE Published:
24 June 2021

What is CVE-2021-31412?

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.

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Deploy the Patch

Affected Version(s)

flow-server 1.0.0

flow-server <= 1.0.14

flow-server 1.1.0

References

https://vaadin.com/security/cve-2021-31412
x_refsource_CONFIRM
https://github.com/vaadin/flow/pull/11107
x_refsource_CONFIRM

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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