CVE-2021-20331: MongoDB C# Driver may publish events containing authentication-related data to a command listener configured by an application
First published: Thu May 13 2021(Updated: )
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.
Credit: cna@mongodb.com cna@mongodb.com cna@mongodb.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| >=2.12.0<2.12.2 | ||
| =2.11.0 | ||
| nuget/mongodb.driver | >=2.11.0<2.12.2 | 2.12.2 |
| Mongodb C\# Driver | >=2.12.0<2.12.2 | |
| Mongodb C\# Driver | =2.11.0 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-20331?
CVE-2021-20331 is a vulnerability in specific versions of the MongoDB C# Driver that may erroneously publish events containing authentication-related data to a command listener configured by an application.
How does CVE-2021-20331 affect MongoDB C# Driver?
CVE-2021-20331 affects specific versions of the MongoDB C# Driver by potentially exposing security-sensitive data in published events related to authentication.
What is the severity of CVE-2021-20331?
CVE-2021-20331 has a severity rating of 4.9 (medium).
How can I fix CVE-2021-20331?
To fix CVE-2021-20331, update your MongoDB C# Driver to a version that is not affected by the vulnerability.
Where can I find more information about CVE-2021-20331?
You can find more information about CVE-2021-20331 on the MongoDB Jira page: https://jira.mongodb.org/browse/CSHARP-3521
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