CVE-2017-18076: POST params leakage

January 26, 2018 (updated October 3, 2019)

In strategy.rb in OmniAuth, the authenticity_token value is improperly protected because POST (in addition to GET) parameters are stored in the session and become available in the environment of the callback phase.

References

bugs.debian.org/888523
github.com/omniauth/omniauth/pull/867
nvd.nist.gov/vuln/detail/CVE-2017-18076

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