CVE-2020-27846

A signature verification vulnerability exists in crewjam/saml. This flaw allows an attacker to bypass SAML Authentication. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

A signature verification vulnerability exists in crewjam/saml. This flaw allows an attacker to bypass SAML Authentication. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Due to the behavior of encoding/xml, a crafted XML document may cause XML Digital Signature validation to be entirely bypassed, causing an unsigned document to appear signed.

### Impact There are three vulnerabilities in the go `encoding/xml` package that can allow an attacker to forge part of a signed XML document. For details on this vulnerability see [xml-roundtrip-validator](https://github.com/mattermost/xml-roundtrip-validator) ### Patches In version 0.4.3, all XML input is validated prior to being parsed.

Se presenta una vulnerabilidad de verificación de firmas en crewjam/saml. Este fallo permite a un atacante omitir la autenticación SAML. La mayor amenaza de esta vulnerabilidad es la confidencialidad, la integridad y la disponibilidad del sistema