The XmlSecLibs library as used in the saml2 library in SimpleSAMLphp before 1.15.3 incorrectly verifies signatures on SAML assertions, allowing a remote attacker to construct a crafted SAML assertion on behalf of an Identity Provider that would pass as cryptographically valid, thereby allowing them to impersonate a user from that Identity Provider, aka a key confusion issue.
{ "nvd_published_at": "2018-03-05T14:29:00Z", "cwe_ids": [ "CWE-347" ], "severity": "HIGH", "github_reviewed": true, "github_reviewed_at": "2024-04-25T21:00:32Z" }