CVE Vulnerability

CVE-2021-20327

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.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 5.5 / Impact : 4.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

Scope

6.8 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.6 / Impact : 5.2

Attack Vector ADJACENT_NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://jira.mongodb.org/browse/NODE-3125 Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:mongodb:libmongocrypt:1.2.0:*:*:*:*:node.js:*:*
Information

Published : 2021-02-25 05:15

Updated : 2021-03-04 08:38

NVD link : CVE-2021-20327

Mitre link : CVE-2021-20327

Products Affected

Libmongocrypt

Mongodb

CWE
CWE-295

Improper Certificate Validation