Privilege Context Switching Error Affecting duende.accesstokenmanagement.openidconnect package, versions [3.0.0,3.0.1)
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Test your applications- Snyk ID SNYK-DOTNET-DUENDEACCESSTOKENMANAGEMENTOPENIDCONNECT-8353098
- published 8 Nov 2024
- disclosed 7 Nov 2024
- credit Nate Laff
Introduced: 7 Nov 2024
New CVE-2024-51987 Open this link in a new tabHow to fix?
Upgrade Duende.AccessTokenManagement.OpenIdConnect to version 3.0.1 or higher.
Overview
Duende.AccessTokenManagement.OpenIdConnect is a .NET library that manages OpenId Connect access tokens in ASP.NET Core applications.
Affected versions of this package are vulnerable to Privilege Context Switching Error due to the improper handling of token refresh in pooled HttpClient instances. An attacker can gain unauthorized access to another user's access token by exploiting the reuse of HttpClient instances across different users.
Workaround
This vulnerability can be mitigated by using the HttpConext.GetUserAccessTokenAsync extension method or the IUserTokenManagementService.GetAccessTokenAsync method instead of AddUserAccessTokenHttpClient.