CVE-2021-20331

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

Severity Score

4.9

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

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.

Las versiones específicas del Controlador MongoDB C# pueden publicar erróneamente eventos que contienen datos relacionados con la autenticación en un escucha de comandos configurado por una aplicación. Los eventos publicados pueden contener datos confidenciales para la seguridad cuando comandos tales como "saslStart", "saslContinue", "isMaster", "createUser" y "updateUser" son ejecutados. Sin el debido cuidado, una aplicación puede exponer inadvertidamente esta información relacionada con la autenticación, por ejemplo, escribiéndola en un archivo de registro. Este problema solo surge si una aplicación habilita la funcionalidad command listener (esta no está habilitada por defecto). Este problema afecta al controlador MongoDB C# versiones 2.12 anteriores a 2.12.1 incluyéndola

*Credits: Citrix Systems, Inc.

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2020-12-17 CVE Reserved
2021-05-13 CVE Published
2023-03-08 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://jira.mongodb.org/browse/CSHARP-3521	2024-01-23

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mongodb Search vendor "Mongodb"		C\# Driver Search vendor "Mongodb" for product "C\# Driver"				>= 2.12.0 < 2.12.2 Search vendor "Mongodb" for product "C\# Driver" and version " >= 2.12.0 < 2.12.2"		mongodb		Affected
Mongodb Search vendor "Mongodb"		C\# Driver Search vendor "Mongodb" for product "C\# Driver"				2.11.0 Search vendor "Mongodb" for product "C\# Driver" and version "2.11.0"		mongodb		Affected