Vulnerability Report

CVE-2021-31404

Title: Vaadin Flow-Server UIDL request handler non-constant-time CSRF token comparison

CSRF

Proof Of Concept

No public PoC currently indexed for CVE-2021-31404.

CWE Category CWE-203
Published Date Apr 23, 2021
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 4.0 CVSS v3.1
Exploit Probability (EPSS)
0.21%

Vulnerability Summary

CVE-2021-31404: 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.

Impacted Vendors

V
vaadin 2
T
typo3 1
F
flow_project 1

Reference Links

https://github.com/vaadin/flow/pull/9875 https://vaadin.com/security/cve-2021-31404 https://github.com/vaadin/flow/pull/9875 https://vaadin.com/security/cve-2021-31404
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
4.0
Attack Vector
LOCAL
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS v3.1
Source Entity [email protected]
Severity LOW
2.5
Attack Vector
LOCAL
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v2.0
Source Entity [email protected]
Severity LOW
1.9
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:L/AC:M/Au:N/C:P/I:N/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2021-31404 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity HIGH
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected Stack

No specific products linked.