CVE-2020-35217

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Vert.x-Web framework v4.0 milestone 1-4 does not perform a correct CSRF verification. Instead of comparing the CSRF token in the request with the CSRF token in the cookie, it compares the CSRF token in the cookie against a CSRF token that is stored in the session. An attacker does not even need to provide a CSRF token in the request because the framework does not consider it. The cookies are automatically sent by the browser and the verification will always succeed, leading to a successful CSRF attack.

El framework Vert.x-Web versión v4.0 milestone 1-4, no lleva a cabo una comprobación de CSRF correcta. En lugar de comparar el token CSRF en la petición con el token CSRF en la cookie, compara el token CSRF en la cookie con un token CSRF que está almacenado en la sesión. Un atacante ni siquiera necesita proporcionar un token CSRF en la petición porque el framework no lo considera. Las cookies son enviadas automáticamente por el navegador y la comprobación siempre se realizará correctamente, conllevando a un ataque de tipo CSRF con éxito

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-12-13 CVE Reserved
2021-01-20 CVE Published
2023-10-06 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-352: Cross-Site Request Forgery (CSRF)

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://github.com/vert-x3/vertx-web/pull/1613	2021-02-02

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Eclipse Search vendor "Eclipse"		Vert.x-web Search vendor "Eclipse" for product "Vert.x-web"				4.0.0 Search vendor "Eclipse" for product "Vert.x-web" and version "4.0.0"		milestone1		Affected
Eclipse Search vendor "Eclipse"		Vert.x-web Search vendor "Eclipse" for product "Vert.x-web"				4.0.0 Search vendor "Eclipse" for product "Vert.x-web" and version "4.0.0"		milestone2		Affected
Eclipse Search vendor "Eclipse"		Vert.x-web Search vendor "Eclipse" for product "Vert.x-web"				4.0.0 Search vendor "Eclipse" for product "Vert.x-web" and version "4.0.0"		milestone3		Affected
Eclipse Search vendor "Eclipse"		Vert.x-web Search vendor "Eclipse" for product "Vert.x-web"				4.0.0 Search vendor "Eclipse" for product "Vert.x-web" and version "4.0.0"		milestone4		Affected