Signature validation bypass in XmlSecLibs

2019-11-08T20:06:46
ID GHSA-PQM6-CGWR-X6PF
Type github
Reporter GitHub Advisory Database
Modified 2020-09-22T22:04:43

Description

Rob Richards XmlSecLibs, all versions prior to v3.0.3, as used for example by SimpleSAMLphp, performed incorrect validation of cryptographic signatures in XML messages, allowing an authenticated attacker to impersonate others or elevate privileges by creating a crafted XML message.