CVE-2021-20327 MEDIUM

CVE-2021-20327: MongoDB Node.js client side field level encryption library may not be validating KMS certificate

Vendor Mongodb Inc.
Product MongoDB Node.js Driver mongodb-client-encryption module
Weakness CWE-295
Published February 25, 2021
Last update September 16, 2024
View on NVD All CVEs

CVSS base score

6.4/10
Attack vector Adjacent
Attack complexity High
Privileges required None
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

What the vulnerability does

01Description

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

Key dates

02Disclosure timeline

February 25, 2021 CVE published
September 16, 2024 Record updated