6.8
CVSSv3

CVE-2021-20328

Published: 25/02/2021 Updated: 13/02/2024
CVSS v2 Base Score: 4.3 | Impact Score: 4.9 | Exploitability Score: 5.5
CVSS v3 Base Score: 6.8 | Impact Score: 5.2 | Exploitability Score: 1.6
VMScore: 383
Vector: AV:A/AC:M/Au:N/C:P/I:P/A:N

Vulnerability Summary

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 exists 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.

Vulnerability Trend

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mongodb java driver

quarkus quarkus

quarkus quarkus 1.13.3

Vendor Advisories

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 ren ...