CVE-2018-7644

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 th...

CVE-2018-7644

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 th...

An error during signature verification can be treated as a successful verification.

…nse. In order to verify Signatures on Logoutrequests and LogoutResponses we use the verifySignature of the class XMLSecurityKey from the xmlseclibs library. That method end up calling opensslverify depending on the signature algorithm used. The opensslverify function returns 1 when the signature...