Medium severity · published Jun 24, 2021
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…
5.3
CVSS
1.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 71% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FL
Flow · Vaadin
1.0.0 through 1.0.14; 1.1.0 through 1.4.0; 2.0.0 through 2.6.1; 3.0.0 through 5.0.0; 6.0.0 through 6.0.9 · source: NVD
VA
Vaadin · Vaadin
10.0.0 through 10.0.18; 11.0.0 through 13.0.0; 14.0.0 through 14.6.1; 15.0.0 through 18.0.0; 19.0.0 through 19.0.8 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-31412
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-31412
Patch
https://github.com/vaadin/flow/pull/11107
Vendor Advisory
https://vaadin.com/security/cve-2021-31412
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