CVE-2024-21643 Microsoft.IdentityModel.Protocols.SignedHttpRequest remote code execution vulnerability

IdentityModel Extensions for .NET provide assemblies for web developers that wish to use federated identity providers for establishing the caller's identity. Anyone leveraging the SignedHttpRequestprotocol or the SignedHttpRequestValidatoris vulnerable. Microsoft.IdentityModel trusts the jkuclaim...

CVE-2024-21643

The CVE-2024-21643 issue affects IdentityModel Extensions for .NET (Microsoft.IdentityModel.Protocols.SignedHttpRequest) where the SignedHttpRequest protocol/validator trusts the jku claim by default, enabling remote/local HTTP GET requests. Multiple sources confirm this vulnerability and identif...