CVE-2021-31406

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

23/04/2021

Last modified:

30/04/2021

Description

Non-constant-time comparison of CSRF tokens in endpoint request handler in com.vaadin:flow-server versions 3.0.0 through 5.0.3 (Vaadin 15.0.0 through 18.0.6), and com.vaadin:fusion-endpoint version 6.0.0 (Vaadin 19.0.0) allows attacker to guess a security token for Fusion endpoints via timing attack.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 2.50 LOW
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): Low
Integrity (I): None
Availability (A): None

Base Score 3.x

2.50

Severity 3.x

LOW

Vector 2.0

AV:L/AC:M/Au:N/C:P/I:N/A:N CVSS v2.0 Severity and Metrics:

Base Score: 1.90 LOW
Vector: AV:L/AC:M/Au:N/C:P/I:N/A:N

Attack Vector (AV): Local
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): None
Availability (A): None

Base Score 2.0

1.90

Severity 2.0

LOW

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:vaadin:flow::::::::	3.0.0 (including)	5.0.4 (excluding)
cpe:2.3:a:vaadin:flow:6.0.0:-::::::
cpe:2.3:a:vaadin:vaadin::::::::	15.0.0 (including)	18.0.7 (excluding)
cpe:2.3:a:vaadin:vaadin:19.0.0:-::::::

To consult the complete list of CPE names with products and versions, see this page

CVE-2021-31406

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools