CVE-2022-47966 SAML ShowStopper

1. IntroductionSAML(Security Assertion Markup Language) & OIDC (OpenID Connect) is the two main SSO (Single-Sign-On) standards. While OIDC is more popular, SAML is mostly used by enterprise organization to authenticate employee. SAML depends on XML signatures & XML Encryption to check if the message come from identity provider (IdP)