Vulnerability · Published Feb 25, 2021 · Assigned by mongodb
CVE-2021-20327MongoDB Node.js client side field level encryption library may not be validating KMS certificate
Medium 6.4
In plain English
A medium-severity improper certificate validation in MongoDB Node.js Driver mongodb-client-encryption module from MongoDB Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 10% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | mongodb-client-encryption | 1.2.1 | GHSA-rjmf-p882-645m |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| MongoDB Inc. | MongoDB Node.js Driver mongodb-client-encryption module | 1.2.0 |
Weakness: CWE-295 · Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
References
- https://jira.mongodb.org/browse/NODE-3125 x_refsource_MISC