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
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
Link | Tags |
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https://jira.mongodb.org/browse/CSHARP-4475 | patch vendor advisory |
https://github.com/mongodb/mongo-csharp-driver/releases/tag/v2.19.0 | release notes |
https://security.netapp.com/advisory/ntap-20230324-0003/ |