Information disclosure in Mongodb C\# Driver
CVE-2021-20331
Specific versions of the MongoDB C# Driver may erroneously publish events containing authentication-related data to a command listener configured by an application. The published events may contain security-sensitive data when commands such as "saslStart", "saslContinue", "isMaster", "createUser", and "updateUser" are executed. Without due care, an application may inadvertently expose this authenticated-related information, e.g., by writing it to a log file. This issue only arises if an application enables the command listener feature (this is not enabled by default). This issue affects the MongoDB C# Driver v2.12 versions prior to and including 2.12.1.
Vulnerability class: Information Disclosure
EPSS: 0.006 (46.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N.
Affected products
- Mongodb C\#_driver — versions 2.11.0
- Mongodb Inc. C# Driver — versions 2.12
Weakness classification (CWE)
References
- cna@mongodb.com (x_refsource_CONFIRM, Patch, Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-20331?
- CVE-2021-20331 is a medium-severity vulnerability in Mongodb C\# Driver, classified under Information Disclosure. CVSS score: 4.2/10. Published 2021-05-13.
- How severe is CVE-2021-20331?
- Medium severity. CVSS v3 base score is 4.2 out of 10.