Signature Wrapping Vulnerability with spring-security-saml2-service-provider
CVE-2020-5407
8.8HIGH
What is CVE-2020-5407?
Spring Security versions 5.2.x prior to 5.2.4 and 5.3.x prior to 5.3.2 contain a signature wrapping vulnerability during SAML response validation. When using the spring-security-saml2-service-provider component, a malicious user can carefully modify an otherwise valid SAML response and append an arbitrary assertion that Spring Security will accept as valid.
Affected Version(s)
Spring Security 5.2 < 5.2.4
Spring Security 5.3 < 5.3.2