Vulnerability Description
Specific versions of the Java driver that support client-side field level encryption (CSFLE) fail to perform correct host name verification on 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 Java driver and the KMS service rendering Field Level Encryption ineffective. This issue was discovered during internal testing and affects all versions of the Java driver that support CSFLE. The Java async, Scala, and reactive streams drivers are not impacted. This vulnerability does not impact driver traffic payloads with CSFLE-supported key services originating from applications residing inside the AWS, GCP, and Azure network fabrics due to compensating controls in these environments. This issue does not impact driver workloads that don’t use Field Level Encryption.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mongodb | Java Driver | >= 3.11.0, < 3.11.3 |
| Quarkus | Quarkus | < 1.13.3 |
Related Weaknesses (CWE)
References
- https://jira.mongodb.org/browse/JAVA-4017Issue TrackingPatchVendor Advisory
- https://jira.mongodb.org/browse/JAVA-4017Issue TrackingPatchVendor Advisory
FAQ
What is CVE-2021-20328?
CVE-2021-20328 is a vulnerability with a CVSS score of 6.4 (MEDIUM). Specific versions of the Java driver that support client-side field level encryption (CSFLE) fail to perform correct host name verification on the KMS server’s certificate. This vulnerability in combi...
How severe is CVE-2021-20328?
CVE-2021-20328 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-20328?
Check the references section above for vendor advisories and patch information. Affected products include: Mongodb Java Driver, Quarkus Quarkus.