GHSA-36p7-xjw8-h6f2

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GHSA-36p7-xjw8-h6f2

Summary: Ruby-saml allows attackers to perform XML signature wrapping attacks

Details: ruby-saml prior to version 1.3.0 is vulnerable to an XML signature wrapping attack in the specific scenario where there was a signature that referenced at the same time 2 elements (but past the scheme validator process since 1 of the element was inside the encrypted assertion). ruby-saml users must update to 1.3.0, which implements 3 extra validations to mitigate this kind of attack.

References: https://nvd.nist.gov/vuln/detail/CVE-2016-5697, https://github.com/onelogin/ruby-saml/commit/a571f52171e6bfd87db59822d1d9e8c38fb3b995, https://github.com/rubysec/ruby-advisory-db/blob/master/gems/ruby-saml/CVE-2016-5697.yml, http://www.openwall.com/lists/oss-security/2016/06/24/3