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GHSA-7mr7-4f54-vcx5
No affected components available
Impact
HTTP Clients created by AddUserAccessTokenHttpClient may use a different user's access token after a token refresh. This occurs because a refreshed token will be captured in pooled HttpClient instances, which may be used by a different user.
Workarounds
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.
Patches
This issue is fixed in Duende.AccessTokenManagement.OpenIdConnect 3.0.1.
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. The attacker needs the user to perform some action, like clicking a link. The impact is confined to the system where the vulnerability exists. There is a low impact on the confidentiality of the information. There is a low impact on the integrity of the data.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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