CVE-2024-51987 HTTP Client uses incorrect token after refresh in Duende.AccessTokenManagement.OpenIdConnect
HTTP clients may use another user's access token after refresh, allowing unauthorized data access or account takeover.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2024-51987?
CVE-2024-51987 is a medium-severity vulnerability in DuendeSoftware Duende.AccessTokenManagement, published on 7 Nov 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-270
Which versions are affected by CVE-2024-51987?
2 open source packages ship an affected version, including Duende.AccessTokenManagement.OpenIdConnect.
| Package | Affected | Fixed in |
|---|---|---|
Duende.AccessTokenManagement.OpenIdConnect NuGet | From 3.0.0 | 3.0.1 |
Duende.AccessTokenManagement.OpenIdConnect NuGet | From 3.0.0 | 3.0.1 |
How do I fix CVE-2024-51987?
Upgrade Duende.AccessTokenManagement.OpenIdConnect to 3.0.1 or later.
Is CVE-2024-51987 being exploited?
There is no known exploitation of CVE-2024-51987 in the wild and no public exploit code.
Sources
Also known as GHSA-7mr7-4f54-vcx5.