Vulnerability Description
Non-constant-time comparison of CSRF tokens in UIDL request handler in com.vaadin:flow-server versions 1.0.0 through 1.0.13 (Vaadin 10.0.0 through 10.0.16), 1.1.0 prior to 2.0.0 (Vaadin 11 prior to 14), 2.0.0 through 2.4.6 (Vaadin 14.0.0 through 14.4.6), 3.0.0 prior to 5.0.0 (Vaadin 15 prior to 18), and 5.0.0 through 5.0.2 (Vaadin 18.0.0 through 18.0.5) allows attacker to guess a security token via timing attack.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Vaadin | Flow | >= 1.0.0, < 1.0.14 |
| Vaadin | Vaadin | >= 10.0.0, < 10.0.17 |
Related Weaknesses (CWE)
References
- https://github.com/vaadin/flow/pull/9875PatchThird Party Advisory
- https://vaadin.com/security/cve-2021-31404Vendor Advisory
- https://github.com/vaadin/flow/pull/9875PatchThird Party Advisory
- https://vaadin.com/security/cve-2021-31404Vendor Advisory
FAQ
What is CVE-2021-31404?
CVE-2021-31404 is a vulnerability with a CVSS score of 4.0 (MEDIUM). Non-constant-time comparison of CSRF tokens in UIDL request handler in com.vaadin:flow-server versions 1.0.0 through 1.0.13 (Vaadin 10.0.0 through 10.0.16), 1.1.0 prior to 2.0.0 (Vaadin 11 prior to 14...
How severe is CVE-2021-31404?
CVE-2021-31404 has been rated MEDIUM with a CVSS base score of 4.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-31404?
Check the references section above for vendor advisories and patch information. Affected products include: Vaadin Flow, Vaadin Vaadin.