title: Possible route enumeration in production mode via RouteNotFoundError view in Vaadin 10, 11-14, and 15-19
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.
problem types: CWE-1295 Debug Messages Revealing Unnecessary Information
affected:
{
product: Vaadin
vendor: Vaadin
versions:
lessThan: unspecified, status: affected, version: 10.0.0, versionType: custom
lessThanOrEqual: 10.0.18, status: affected, version: unspecified, versionType: custom
lessThan: unspecified, status: affected, version: 11.0.0, versionType: custom
lessThan: 14.0.0, status: affected, version: unspecified, versionType: custom
lessThan: unspecified, status: affected, version: 14.0.0, versionType: custom
lessThanOrEqual: 14.6.1, status: affected, version: unspecified, versionType: custom
lessThan: unspecified, status: affected, version: 15.0.0, versionType: custom
lessThanOrEqual: 19.0.8, status: affected, version: unspecified, versionType: custom
}
{
product: flow-server
vendor: Vaadin
versions:
lessThan: unspecified, status: affected, version: 1.0.0, versionType: custom
lessThanOrEqual: 1.0.14, status: affected, version: unspecified, versionType: custom
lessThan: unspecified, status: affected, version: 1.1.0, versionType: custom
lessThan: 2.0.0, status: affected, version: unspecified, versionType: custom
lessThan: unspecified, status: affected, version: 2.0.0, versionType: custom
lessThanOrEqual: 2.6.1, status: affected, version: unspecified, versionType: custom
lessThan: unspecified, status: affected, version: 3.0.0, versionType: custom
lessThanOrEqual: 6.0.9, status: affected, version: unspecified, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 5.3
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
version: 3.1
]