CVE-2021-31412 Possible route enumeration in production mode via RouteNotFoundError view in Vaadin 10, 11-14, and 15-19
Attackers can enumerate application routes via crafted requests in production mode if no custom error handler is configured.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-31412?
CVE-2021-31412 is a medium-severity vulnerability in Vaadin, published on 24 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Which versions are affected by CVE-2021-31412?
6 open source packages ship an affected version, including com.vaadin:vaadin-bom. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
com.vaadin:vaadin-bom Maven | From 10.0.0 | 10.0.19 |
com.vaadin:vaadin-bom Maven | From 10.0.0 | 10.0.19 |
com.vaadin:vaadin-bom Maven | From 11.0.0 | 14.6.2 |
com.vaadin:vaadin-bom Maven | From 11.0.0 | 14.6.2 |
com.vaadin:vaadin-bom Maven | From 15.0.0 | 19.0.9 |
com.vaadin:vaadin-bom Maven | From 15.0.0 | 19.0.9 |
Products include Vaadin Flow, Vaadin Vaadin.
How do I fix CVE-2021-31412?
Upgrade com.vaadin:vaadin-bom to a fixed version for your release line: 10.0.19, 14.6.2 or 19.0.9.
Is CVE-2021-31412 being exploited?
There is no known exploitation of CVE-2021-31412 in the wild and no public exploit code.
Other vulnerabilities in Vaadin
- CVE-2021-31407 Server classes and resources exposure in OSGi applications using Vaadin 12-14 and 19
- CVE-2021-31405 Regular expression denial of service (ReDoS) in EmailField component in Vaadin 14 and 15-17
- CVE-2021-31411 Insecure temporary directory usage in frontend build functionality of Vaadin 14 and 15-19
- CVE-2021-31408 Server session is not invalidated when logout() helper method of Authentication module is used in Vaadin 18-19
- CVE-2019-25027 Reflected cross-site scripting in default RouteNotFoundError view in Vaadin 10 and 11-13
Sources
Also known as GHSA-qrg9-f472-qwfm.