What is CVE-2020-7921?

CVE-2020-7921 refers to an improper serialization vulnerability in the authorization subsystem of MongoDB Server.

Which versions of MongoDB Server are affected by CVE-2020-7921?

Versions 3.6.0 to 3.6.18, 4.0.0 to 4.0.15, 4.2.0 to 4.2.3, and 4.3.0 to 4.3.3 of MongoDB Server are affected by CVE-2020-7921.

What is the severity of CVE-2020-7921?

CVE-2020-7921 has a severity rating of 5.3, which is considered medium.

How can I mitigate CVE-2020-7921?

It is recommended to update MongoDB Server to a version that is not affected by CVE-2020-7921 or apply any patches or updates provided by MongoDB Inc.

Vulnerability/
CVE-2020-7921

medium

5.3

CWE

863 182

6/5/2020

23/1/2024

CVE-2020-7921: Administrative action may disable enforcement of per-user IP whitelisting

Q: How does CVE-2020-7921 affect MongoDB Server?

CVE-2020-7921 allows a user with valid credentials to bypass IP whitelisting protection mechanisms in MongoDB Server.

First published: Wed May 06 2020(Updated: )

Improper serialization of internal state in the authorization subsystem in MongoDB Server's authorization subsystem permits a user with valid credentials to bypass IP whitelisting protection mechanisms following administrative action. This issue affects MongoDB Server v4.2 versions prior to 4.2.3; MongoDB Server v4.0 versions prior to 4.0.15; MongoDB Server v4.3 versions prior to 4.3.3and MongoDB Server v3.6 versions prior to 3.6.18.

Credit: cna@mongodb.com cna@mongodb.com

Affected Software	Affected Version	How to fix
MongoDB MongoDB	>=3.6.0<3.6.18
MongoDB MongoDB	>=4.0.0<4.0.15
MongoDB MongoDB	>=4.2.0<4.2.3
MongoDB MongoDB	>=4.3.0<4.3.3

Remedy

https://jira.mongodb.org/browse/SERVER-45472

Never miss a vulnerability like this again

Reference Links

https://jira.mongodb.org/browse/SERVER-45472

Frequently Asked Questions

What is CVE-2020-7921?
CVE-2020-7921 refers to an improper serialization vulnerability in the authorization subsystem of MongoDB Server.
How does CVE-2020-7921 affect MongoDB Server?
CVE-2020-7921 allows a user with valid credentials to bypass IP whitelisting protection mechanisms in MongoDB Server.
Which versions of MongoDB Server are affected by CVE-2020-7921?
Versions 3.6.0 to 3.6.18, 4.0.0 to 4.0.15, 4.2.0 to 4.2.3, and 4.3.0 to 4.3.3 of MongoDB Server are affected by CVE-2020-7921.
What is the severity of CVE-2020-7921?
CVE-2020-7921 has a severity rating of 5.3, which is considered medium.
How can I mitigate CVE-2020-7921?
It is recommended to update MongoDB Server to a version that is not affected by CVE-2020-7921 or apply any patches or updates provided by MongoDB Inc.

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canonical/mongodb mongodb
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version/mongodb mongodb/4.2.0
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