CVE-2021-20331 MEDIUM

CVE-2021-20331: MongoDB C# Driver may publish events containing authentication-related data to a command listener configured by an application

Vendor Mongodb Inc.
Product MongoDB C# Driver
Weakness CWE-200 · Info exposure
Published May 13, 2021
Last update September 16, 2024

CVSS base score

4.2/10
Attack vector Local
Attack complexity Low
Privileges required High
User interaction Required
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 13, 2021 CVE published
September 16, 2024 Record updated