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Timing side channel vulnerability in UIDL request handler in Vaadin 7 and 8

Moderate severity GitHub Reviewed Published Apr 16, 2021 in vaadin/framework • Updated Feb 1, 2023

Package

maven com.vaadin:vaadin-bom (Maven)

Affected versions

>= 7.0.0, < 7.7.24
>= 8.0.0, < 8.12.3

Patched versions

7.7.24
8.12.3
maven com.vaadin:vaadin-server (Maven)
>= 7.0.0, < 7.7.24
>= 8.0.0, < 8.12.3
7.7.24
8.12.3

Description

Non-constant-time comparison of CSRF tokens in UIDL request handler in com.vaadin:vaadin-server versions 7.0.0 through 7.7.23 (Vaadin 7.0.0 through 7.7.23), and 8.0.0 through 8.12.2 (Vaadin 8.0.0 through 8.12.2) allows attacker to guess a security token via timing attack

References

@fluorumlabs fluorumlabs published to vaadin/framework Apr 16, 2021
Reviewed Apr 16, 2021
Published to the GitHub Advisory Database Apr 19, 2021
Published by the National Vulnerability Database Apr 23, 2021
Last updated Feb 1, 2023

Severity

Moderate
4.0
/ 10

CVSS base metrics

Attack vector
Local
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Weaknesses

CVE ID

CVE-2021-31403

GHSA ID

GHSA-75xc-qvxh-27f8

Source code

No known source code
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