// For flags

CVE-2021-20327

MongoDB Node.js client side field level encryption library may not be validating KMS certificate

Severity Score

6.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A specific version of the Node.js mongodb-client-encryption module does not perform correct validation of the KMS server’s certificate. This vulnerability in combination with a privileged network position active MITM attack could result in interception of traffic between the Node.js driver and the KMS service rendering client-side field level encryption (CSFLE) ineffective. This issue was discovered during internal testing and affects mongodb-client-encryption module version 1.2.0, which was available from 2021-Jan-29 and deprecated in the NPM Registry on 2021-Feb-04. This vulnerability does not impact driver traffic payloads with CSFLE-supported key services from applications residing inside the AWS, GCP, and Azure nework fabrics due to compensating controls in these environments. This issue does not impact driver workloads that don’t use Field Level Encryption. This issue affect MongoDB Node.js Driver mongodb-client-encryption module version 1.2.0

Una versión específica del módulo mongodb-client-encryption de Node.js no lleva a cabo una comprobación correcta del certificado del servidor KMS. Esta vulnerabilidad, en combinación con un ataque MITM activo en una posición de red privilegiada, podría resultar en la interceptación del tráfico entre el controlador de Node.js y el servicio KMS, haciendo ineficaz el cifrado a nivel de campo del lado del cliente (CSFLE). Este problema se detectó durante las pruebas internas y afecta a la versión 1.2.0 del módulo mongodb-client-encryption, que estaba disponible desde el 29 de Enero de 2021 y que fue obsoleto en el Registro NPM el 04 de Febrero de 2021. Esta vulnerabilidad no afecta a las cargas útiles de tráfico de los controladores con servicios clave compatibles con CSFLE de las aplicaciones que residen dentro de los tejidos de trabajo de AWS, GCP y Azure debido a los controles de compensación en estos entornos. Este problema no afecta a las cargas de trabajo de los controladores que no usan Field Level Encryption

*Credits: N/A
CVSS Scores
Attack Vector
Adjacent
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Attack Vector
Adjacent
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Attack Vector
Adjacent
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-12-17 CVE Reserved
  • 2021-02-25 CVE Published
  • 2023-10-02 EPSS Updated
  • 2024-09-16 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-295: Improper Certificate Validation
CAPEC
References (1)
URL Tag Source
URL Date SRC
URL Date SRC
URL Date SRC
https://jira.mongodb.org/browse/NODE-3125 2024-02-13
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Mongodb
Search vendor "Mongodb"
 Libmongocrypt
Search vendor "Mongodb" for product "Libmongocrypt"
 1.2.0
Search vendor "Mongodb" for product "Libmongocrypt" and version "1.2.0"
node.js
Affected