Duende IdentityServer is an OpenID Connect and OAuth 2.x framework for ASP.NET Core. It is possible for an attacker to craft malicious Urls that certain functions in IdentityServer will incorrectly treat as local and trusted. If such a Url is returned as a redirect, some browsers will follow it to a third-party, untrusted site. Note: by itself, this vulnerability does **not** allow an attacker to obtain user credentials, authorization codes, access tokens, refresh tokens, or identity tokens. An attacker could however exploit this vulnerability as part of a phishing attack designed to steal user credentials. This vulnerability is fixed in 7.0.6, 6.3.10, 6.2.5, 6.1.8, and 6.0.5. Duende.IdentityServer 5.1 and earlier and all versions of IdentityServer4 are no longer supported and will not be receiving updates. If upgrading is not possible, use `IUrlHelper.IsLocalUrl` from ASP.NET Core to validate return Urls in user interface code in the IdentityServer host.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published: 2024-07-31T15:44:55.165Z
Updated: 2024-07-31T16:51:46.950Z
Reserved: 2024-06-27T18:44:13.036Z
Link: CVE-2024-39694
Vulnrichment
Updated: 2024-07-31T16:51:44.100Z
NVD
Status : Awaiting Analysis
Published: 2024-07-31T16:15:04.207
Modified: 2024-08-01T12:42:36.933
Link: CVE-2024-39694
Redhat
No data.