Deserialization in Mongodb C\# Driver

CVE-2022-48282

Under very specific circumstances (see Required configuration section below), a privileged user is able to cause arbitrary code to be executed which may cause further disruption to services. This is specific to applications written in C#. This affects all MongoDB .NET/C# Driver versions prior to and including v2.18.0 Following configuration must be true for the vulnerability to be applicable: * Application must written in C# taking arbitrary data from users and serializing data using _t without any validation AND * Application must be running on a Windows host using the full .NET Framework, not .NET Core AND * Application must have domain model class with a property/field explicitly of type System.Object or a collection of type System.Object (against MongoDB best practice) AND * Malicious attacker must have unrestricted insert access to target database to add a _t discriminator."Following configuration must be true for the vulnerability to be applicable

Vulnerability class: Insecure Deserialization

EPSS: 0.010 (60.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2022-48282?
CVE-2022-48282 is a medium-severity vulnerability in Mongodb C\# Driver, classified under Deserialization of Untrusted Data. CVSS score: 6.6/10. Published 2023-02-21.
How severe is CVE-2022-48282?
Medium severity. CVSS v3 base score is 6.6 out of 10.