DuendeSoftware Duende.AccessTokenManagement = 3.0.0 privilege context switching

Summaryinfo

A vulnerability classified as critical was found in DuendeSoftware Duende.AccessTokenManagement = 3.0.0. This affects an unknown function. The manipulation results in privilege context switching. This vulnerability is known as CVE-2024-51987. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical has been found in DuendeSoftware Duende.AccessTokenManagement = 3.0.0. Affected is an unknown function. The manipulation with an unknown input leads to a privilege context switching vulnerability. CWE is classifying the issue as CWE-270. The product does not properly manage privileges while it is switching between different contexts that have different privileges or spheres of control. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Duende.AccessTokenManagement.OpenIdConnect is a set of .NET libraries that manage OAuth and OpenId Connect access tokens. HTTP Clients created by `AddUserAccessTokenHttpClient` may use a different user's access token after a token refresh occurs. This occurs because a refreshed token will be captured in pooled `HttpClient` instances, which may be used by a different user. Instead of using `AddUserAccessTokenHttpClient` to create an `HttpClient` that automatically adds a managed token to outgoing requests, you can use the `HttpConext.GetUserAccessTokenAsync` extension method or the `IUserTokenManagementService.GetAccessTokenAsync` method. This issue is fixed in Duende.AccessTokenManagement.OpenIdConnect 3.0.1. All users are advised to upgrade. There are no known workarounds for this vulnerability.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2024-51987 since 11/04/2024. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading to version 3.0.1 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• DuendeSoftware

Name

• Duende.AccessTokenManagement

Version

• = 3.0.0

Website

• Product: https://github.com/DuendeSoftware/Duende.AccessTokenManagement/

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