Re: [CVE-2016-5697] signature wrapping attack vulnerability in ruby-saml prior to version 1.3.0

[Alvaro Hoyos <alvaro.hoyos () onelogin com>]

Thanks to Robert Clancy from swrve.com for discovering and responsibly 
reporting this issue.

On Friday, June 24, 2016 at 11:35:34 AM UTC-7, Alvaro Hoyos wrote:
> Overview: 
> Ruby-saml prior to version 1.3.0 is vulnerable to an XML signature 
> wrapping attack. Ruby-saml users must update to 1.3.0 version which 
> implements 3 extra validations to mitigate this kind of attack.
>
> Overall CVSS Score 6.1
>
> Fix: Add extra validations to prevent Signature wrapping attacks [1]
>
> [1] https://github.com/onelogin/ruby-saml
>
> alvaro j hoyos | chief information security officer | 
> alvaro.hoyos () onelogin com | +1 415.653.1893 | skype: alvaroonelogin