What is CVE-2021-20335?

CVE-2021-20335 is a medium-severity vulnerability in Mongodb Ops Manager, classified under Cleartext Transmission of Sensitive Information. CVSS score: 6.7/10. Published 2021-02-11.

How severe is CVE-2021-20335?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Vulnerability in Mongodb Ops Manager

CVE-2021-20335

For MongoDB Ops Manager versions prior to and including 4.2.24 with multiple OM application servers, that have SSL turned on for their MongoDB processes, the upgrade to MongoDB Ops Manager versions prior to and including 4.4.12 triggers a bug where Automation thinks SSL is being turned off, and can disable SSL temporarily for members of the cluster. This issue is temporary and eventually corrects itself after MongoDB Ops Manager instances have finished upgrading to MongoDB Ops Manager 4.4. In addition, customers must be running with clientCertificateMode=OPTIONAL / allowConnectionsWithoutCertificates=true to be impacted*.* Customers upgrading from Ops Manager 4.2.X to 4.2.24 and finally to Ops Manager 4.4.13+ are unaffected by this issue.

EPSS: 0.001 (3.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N.

Affected products

Mongodb Ops_manager
Mongodb Inc. Ops Manager — versions 4.2

Weakness classification (CWE)

CWE-319 — Cleartext Transmission of Sensitive Information

References

cna@mongodb.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2021-20335?: CVE-2021-20335 is a medium-severity vulnerability in Mongodb Ops Manager, classified under Cleartext Transmission of Sensitive Information. CVSS score: 6.7/10. Published 2021-02-11.
How severe is CVE-2021-20335?: Medium severity. CVSS v3 base score is 6.7 out of 10.