CIE.AspNetCore.Authentication is an AspNetCore Remote Authenticator for CIE 3.0. Authentication using Spid and CIE is based on the SAML2 standard which provides two entities: 1. Identity Provider (IDP): the system that authenticates users and provides identity information (SAML affirmation) to the Service Provider, in essence, is responsible for the management of the credentials and identity of users; 2. Service Provider (SP): the system that provides a service to the user and relies on the Identity Provider to authenticate the user, receives SAML assertions from the IdP to grant access to resources. The library cie-aspnetcore refers to the second entity, the SP, and implements the validation logic of SAML assertions within SAML responses. In affected versions there is no guarantee that the first signature refers to the root object, it follows that if an attacker injects an item signed as the first element, all other signatures will not be verified. The only requirement is to have an X

AspNetCore Remote Authenticator for CIE3.0 Allows SAML Response Signature Verification Bypass

Уязвимость библиотеки CIE.AspNetCore.Authentication программной платформы ASP.NET Core, связанная с недостатками процедуры аутентификаци, позволяющая нарушителю обойти ограничения безопасности и получить несанкционированный доступ к защищаемой информации