GHSA-ppjq-qxhx-m25f Authentication Bypass for passport-wsfed-saml2

• npm passport-wsfed-saml2: < 4.6.3 → fixed in 4.6.3

Overview A remote attacker can bypass WSFed authentication on a website using passport-wsfed-saml2. A successful attack requires that the attacker is in possession of an arbitrary IDP signed WSFed assertion. Depending on the IDP used, fully unauthenticated attacks (e.g without access to a valid user) might also be feasible if generation of a signed message can be triggered. Am I affected? You are affected if you are using WSFed protocol with the passport-wsfed-saml2 library versions < 4.6.3. SAML2 protocol is not affected. How do I fix it? Upgrade the library to version 4.6.3. Will the fix impact my users? No, the fix will not impact your users.