CVE-2021-31412: Exposure of Resource to Wrong Sphere

June 28, 2021 (updated July 1, 2021)

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.

References

github.com/advisories/GHSA-qrg9-f472-qwfm
github.com/vaadin/flow/pull/11107
github.com/vaadin/platform/security/advisories/GHSA-qrg9-f472-qwfm
nvd.nist.gov/vuln/detail/CVE-2021-31412
vaadin.com/security/cve-2021-31412

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